diff --git a/AGENTS.md b/AGENTS.md
index 6a60fc47b1..dc364e4e5c 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -230,6 +230,10 @@ file does, and it is the authority when they disagree. The most useful starting
         ```
 
     *   **Component Metadata:**
+        - `DOMAIN`: Required in every component's `__init__.py`, set to the component's own name as a plain
+          string (e.g. `DOMAIN = "my_component"`). Other code refers to the component through it, e.g.
+          `from esphome.components.my_component import DOMAIN`. Keep it in alphabetical order with the other
+          metadata constants. CI (`lint_component_domain`) fails without it.
         - `DEPENDENCIES`: List of required components
         - `AUTO_LOAD`: Components to automatically load
         - `CONFLICTS_WITH`: Incompatible components
@@ -243,6 +247,7 @@ file does, and it is the authority when they disagree. The most useful starting
         import esphome.config_validation as cv
         from esphome.const import CONF_KEY, CONF_ID
 
+        DOMAIN = "my_component"
         CONF_PARAM = "param"  # A constant that does not yet exist in esphome/const.py
 
         my_component_ns = cg.esphome_ns.namespace("my_component")
diff --git a/CODEOWNERS b/CODEOWNERS
index b5138c0612..e0f9d2d2ef 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -188,6 +188,7 @@ esphome/components/esp32_rmt_led_strip/* @jesserockz
 esphome/components/esp8266/* @esphome/core
 esphome/components/esp_ldo/* @clydebarrow
 esphome/components/espectre/* @francescopace
+esphome/components/esphome/ota/* @esphome/core
 esphome/components/espnow/* @jesserockz
 esphome/components/espnow/packet_transport/* @EasilyBoredEngineer
 esphome/components/ethernet_info/* @gtjadsonsantos
diff --git a/esphome/components/a01nyub/__init__.py b/esphome/components/a01nyub/__init__.py
index 4c84847fb6..45206b66bc 100644
--- a/esphome/components/a01nyub/__init__.py
+++ b/esphome/components/a01nyub/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@MrSuicideParrot"]
+DOMAIN = "a01nyub"
diff --git a/esphome/components/a02yyuw/__init__.py b/esphome/components/a02yyuw/__init__.py
index 6724dbb970..f6a28dfa18 100644
--- a/esphome/components/a02yyuw/__init__.py
+++ b/esphome/components/a02yyuw/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@TH-Braemer"]
+DOMAIN = "a02yyuw"
diff --git a/esphome/components/a4988/__init__.py b/esphome/components/a4988/__init__.py
index e69de29bb2..55797725d6 100644
--- a/esphome/components/a4988/__init__.py
+++ b/esphome/components/a4988/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "a4988"
diff --git a/esphome/components/absolute_humidity/__init__.py b/esphome/components/absolute_humidity/__init__.py
index 8f113b48f6..5cfae55a40 100644
--- a/esphome/components/absolute_humidity/__init__.py
+++ b/esphome/components/absolute_humidity/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@DAVe3283"]
+DOMAIN = "absolute_humidity"
diff --git a/esphome/components/ac_dimmer/__init__.py b/esphome/components/ac_dimmer/__init__.py
index e69de29bb2..7025ecff72 100644
--- a/esphome/components/ac_dimmer/__init__.py
+++ b/esphome/components/ac_dimmer/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ac_dimmer"
diff --git a/esphome/components/adalight/__init__.py b/esphome/components/adalight/__init__.py
index afdfefaba6..caf66167b1 100644
--- a/esphome/components/adalight/__init__.py
+++ b/esphome/components/adalight/__init__.py
@@ -9,6 +9,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 DEPENDENCIES = ["uart"]
+DOMAIN = "adalight"
 
 adalight_ns = cg.esphome_ns.namespace("adalight")
 AdalightLightEffect = adalight_ns.class_(
diff --git a/esphome/components/adc/__init__.py b/esphome/components/adc/__init__.py
index c397e746b0..6966a86f6b 100644
--- a/esphome/components/adc/__init__.py
+++ b/esphome/components/adc/__init__.py
@@ -22,6 +22,7 @@ from esphome.core import CORE
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "adc"
 
 adc_ns = cg.esphome_ns.namespace("adc")
 
diff --git a/esphome/components/adc128s102/__init__.py b/esphome/components/adc128s102/__init__.py
index 684147752d..125b4113c5 100644
--- a/esphome/components/adc128s102/__init__.py
+++ b/esphome/components/adc128s102/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID
 from esphome.types import ConfigType
 
 DEPENDENCIES = ["spi"]
+DOMAIN = "adc128s102"
 MULTI_CONF = True
 CODEOWNERS = ["@DeerMaximum"]
 
diff --git a/esphome/components/addressable_light/__init__.py b/esphome/components/addressable_light/__init__.py
index e69de29bb2..28a33c66d8 100644
--- a/esphome/components/addressable_light/__init__.py
+++ b/esphome/components/addressable_light/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "addressable_light"
diff --git a/esphome/components/ade7880/__init__.py b/esphome/components/ade7880/__init__.py
index e69de29bb2..f3dd325f5c 100644
--- a/esphome/components/ade7880/__init__.py
+++ b/esphome/components/ade7880/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ade7880"
diff --git a/esphome/components/ade7953/__init__.py b/esphome/components/ade7953/__init__.py
index d3078a0b67..512ac1a3f3 100644
--- a/esphome/components/ade7953/__init__.py
+++ b/esphome/components/ade7953/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@angelnu"]
+DOMAIN = "ade7953"
diff --git a/esphome/components/ade7953_base/__init__.py b/esphome/components/ade7953_base/__init__.py
index 71250ac94e..808de99984 100644
--- a/esphome/components/ade7953_base/__init__.py
+++ b/esphome/components/ade7953_base/__init__.py
@@ -27,6 +27,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@angelnu"]
+DOMAIN = "ade7953_base"
 
 CONF_CURRENT_A = "current_a"
 CONF_CURRENT_B = "current_b"
diff --git a/esphome/components/ade7953_i2c/__init__.py b/esphome/components/ade7953_i2c/__init__.py
index d3078a0b67..691ceb0274 100644
--- a/esphome/components/ade7953_i2c/__init__.py
+++ b/esphome/components/ade7953_i2c/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@angelnu"]
+DOMAIN = "ade7953_i2c"
diff --git a/esphome/components/ade7953_spi/__init__.py b/esphome/components/ade7953_spi/__init__.py
index d3078a0b67..71ad260db2 100644
--- a/esphome/components/ade7953_spi/__init__.py
+++ b/esphome/components/ade7953_spi/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@angelnu"]
+DOMAIN = "ade7953_spi"
diff --git a/esphome/components/ads1115/__init__.py b/esphome/components/ads1115/__init__.py
index b42ee918c5..1b8405322f 100644
--- a/esphome/components/ads1115/__init__.py
+++ b/esphome/components/ads1115/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID
 from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
+DOMAIN = "ads1115"
 MULTI_CONF = True
 
 ads1115_ns = cg.esphome_ns.namespace("ads1115")
diff --git a/esphome/components/ads1118/__init__.py b/esphome/components/ads1118/__init__.py
index 956b9a0c1f..98129ecbea 100644
--- a/esphome/components/ads1118/__init__.py
+++ b/esphome/components/ads1118/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@solomondg1"]
 DEPENDENCIES = ["spi"]
+DOMAIN = "ads1118"
 MULTI_CONF = True
 
 CONF_ADS1118_ID = "ads1118_id"
diff --git a/esphome/components/ags10/__init__.py b/esphome/components/ags10/__init__.py
index 37f34d06df..8d2bbd6fb4 100644
--- a/esphome/components/ags10/__init__.py
+++ b/esphome/components/ags10/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@mak-42"]
+DOMAIN = "ags10"
diff --git a/esphome/components/aht10/__init__.py b/esphome/components/aht10/__init__.py
index e69de29bb2..888d442fdf 100644
--- a/esphome/components/aht10/__init__.py
+++ b/esphome/components/aht10/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "aht10"
diff --git a/esphome/components/aic3204/__init__.py b/esphome/components/aic3204/__init__.py
index e69de29bb2..c7f7f00960 100644
--- a/esphome/components/aic3204/__init__.py
+++ b/esphome/components/aic3204/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "aic3204"
diff --git a/esphome/components/airthings_ble/__init__.py b/esphome/components/airthings_ble/__init__.py
index 44534b80e9..48cebad5fb 100644
--- a/esphome/components/airthings_ble/__init__.py
+++ b/esphome/components/airthings_ble/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["ble_device_base"]
 CODEOWNERS = ["@jeromelaban"]
+DOMAIN = "airthings_ble"
 
 airthings_ble_ns = cg.esphome_ns.namespace("airthings_ble")
 AirthingsListener = airthings_ble_ns.class_(
diff --git a/esphome/components/airthings_wave_base/__init__.py b/esphome/components/airthings_wave_base/__init__.py
index 2cec58934d..035142193a 100644
--- a/esphome/components/airthings_wave_base/__init__.py
+++ b/esphome/components/airthings_wave_base/__init__.py
@@ -24,6 +24,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@ncareau", "@jeromelaban"]
+DOMAIN = "airthings_wave_base"
 
 DEPENDENCIES = ["ble_client"]
 
diff --git a/esphome/components/airthings_wave_mini/__init__.py b/esphome/components/airthings_wave_mini/__init__.py
index 022f35b4cf..64513a448d 100644
--- a/esphome/components/airthings_wave_mini/__init__.py
+++ b/esphome/components/airthings_wave_mini/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@ncareau"]
+DOMAIN = "airthings_wave_mini"
diff --git a/esphome/components/airthings_wave_plus/__init__.py b/esphome/components/airthings_wave_plus/__init__.py
index e26bfd471b..904aa922ba 100644
--- a/esphome/components/airthings_wave_plus/__init__.py
+++ b/esphome/components/airthings_wave_plus/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@jeromelaban", "@precurse"]
+DOMAIN = "airthings_wave_plus"
diff --git a/esphome/components/alarm_control_panel/__init__.py b/esphome/components/alarm_control_panel/__init__.py
index 78206ff3f8..ac12835433 100644
--- a/esphome/components/alarm_control_panel/__init__.py
+++ b/esphome/components/alarm_control_panel/__init__.py
@@ -21,6 +21,7 @@ from esphome.core.entity_helpers import (
 from esphome.cpp_generator import MockObjClass
 
 CODEOWNERS = ["@grahambrown11", "@hwstar"]
+DOMAIN = "alarm_control_panel"
 IS_PLATFORM_COMPONENT = True
 
 CONF_ON_TRIGGERED = "on_triggered"
diff --git a/esphome/components/alpha3/__init__.py b/esphome/components/alpha3/__init__.py
index 7cd320c80f..551edbeb7f 100644
--- a/esphome/components/alpha3/__init__.py
+++ b/esphome/components/alpha3/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@jan-hofmeier"]
+DOMAIN = "alpha3"
diff --git a/esphome/components/am2315c/__init__.py b/esphome/components/am2315c/__init__.py
index 2398e4fa23..a0ffa96f5e 100644
--- a/esphome/components/am2315c/__init__.py
+++ b/esphome/components/am2315c/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@swoboda1337"]
+DOMAIN = "am2315c"
diff --git a/esphome/components/am2320/__init__.py b/esphome/components/am2320/__init__.py
index e69de29bb2..34e57d220c 100644
--- a/esphome/components/am2320/__init__.py
+++ b/esphome/components/am2320/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "am2320"
diff --git a/esphome/components/am43/__init__.py b/esphome/components/am43/__init__.py
index f21a15ce0a..fa3caae506 100644
--- a/esphome/components/am43/__init__.py
+++ b/esphome/components/am43/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@buxtronix"]
+DOMAIN = "am43"
diff --git a/esphome/components/analog_threshold/__init__.py b/esphome/components/analog_threshold/__init__.py
index 9ae2df986d..c01f3b40e5 100644
--- a/esphome/components/analog_threshold/__init__.py
+++ b/esphome/components/analog_threshold/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@ianchi"]
+DOMAIN = "analog_threshold"
diff --git a/esphome/components/anova/__init__.py b/esphome/components/anova/__init__.py
index e69de29bb2..4fdd8de72c 100644
--- a/esphome/components/anova/__init__.py
+++ b/esphome/components/anova/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "anova"
diff --git a/esphome/components/apds9306/__init__.py b/esphome/components/apds9306/__init__.py
index 3dc8fcf5ff..b22aecf6d2 100644
--- a/esphome/components/apds9306/__init__.py
+++ b/esphome/components/apds9306/__init__.py
@@ -2,3 +2,4 @@
 # https://www.mouser.ca/datasheet/2/678/AVGO_S_A0002854364_1-2574547.pdf
 
 CODEOWNERS = ["@aodrenah"]
+DOMAIN = "apds9306"
diff --git a/esphome/components/apds9960/__init__.py b/esphome/components/apds9960/__init__.py
index 7ac1e5eb32..8c19eec5ca 100644
--- a/esphome/components/apds9960/__init__.py
+++ b/esphome/components/apds9960/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID
 from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
+DOMAIN = "apds9960"
 MULTI_CONF = True
 
 CONF_APDS9960_ID = "apds9960_id"
diff --git a/esphome/components/aqi/__init__.py b/esphome/components/aqi/__init__.py
index 17d434294a..02c0bd2228 100644
--- a/esphome/components/aqi/__init__.py
+++ b/esphome/components/aqi/__init__.py
@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 
 CODEOWNERS = ["@jasstrong", "@ximex", "@freekode"]
+DOMAIN = "aqi"
 
 aqi_ns = cg.esphome_ns.namespace("aqi")
 AQICalculatorType = aqi_ns.enum("AQICalculatorType")
diff --git a/esphome/components/as3935/__init__.py b/esphome/components/as3935/__init__.py
index bd02d22d1b..b7b5b09c62 100644
--- a/esphome/components/as3935/__init__.py
+++ b/esphome/components/as3935/__init__.py
@@ -17,6 +17,7 @@ from esphome.const import (
 from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
+DOMAIN = "as3935"
 MULTI_CONF = True
 
 CONF_AS3935_ID = "as3935_id"
diff --git a/esphome/components/as3935_i2c/__init__.py b/esphome/components/as3935_i2c/__init__.py
index 83924de760..e1d2d89ec5 100644
--- a/esphome/components/as3935_i2c/__init__.py
+++ b/esphome/components/as3935_i2c/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["as3935"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "as3935_i2c"
 
 as3935_i2c_ns = cg.esphome_ns.namespace("as3935_i2c")
 I2CAS3935 = as3935_i2c_ns.class_("I2CAS3935Component", as3935.AS3935, i2c.I2CDevice)
diff --git a/esphome/components/as3935_spi/__init__.py b/esphome/components/as3935_spi/__init__.py
index 332a51c7a9..9313705ab6 100644
--- a/esphome/components/as3935_spi/__init__.py
+++ b/esphome/components/as3935_spi/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["as3935"]
 DEPENDENCIES = ["spi"]
+DOMAIN = "as3935_spi"
 
 as3935_spi_ns = cg.esphome_ns.namespace("as3935_spi")
 SPIAS3935 = as3935_spi_ns.class_("SPIAS3935Component", as3935.AS3935, spi.SPIDevice)
diff --git a/esphome/components/as5600/__init__.py b/esphome/components/as5600/__init__.py
index 780712c3bd..3cc5ed5cc1 100644
--- a/esphome/components/as5600/__init__.py
+++ b/esphome/components/as5600/__init__.py
@@ -18,6 +18,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@ammmze"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "as5600"
 MULTI_CONF = True
 
 as5600_ns = cg.esphome_ns.namespace("as5600")
diff --git a/esphome/components/as7341/__init__.py b/esphome/components/as7341/__init__.py
index e69de29bb2..bdbe78a4ec 100644
--- a/esphome/components/as7341/__init__.py
+++ b/esphome/components/as7341/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "as7341"
diff --git a/esphome/components/async_tcp/__init__.py b/esphome/components/async_tcp/__init__.py
index 31007022d5..b67202db59 100644
--- a/esphome/components/async_tcp/__init__.py
+++ b/esphome/components/async_tcp/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
 DEPENDENCIES = ["network"]
+DOMAIN = "async_tcp"
 
 
 def AUTO_LOAD() -> list[str]:
diff --git a/esphome/components/at581x/__init__.py b/esphome/components/at581x/__init__.py
index a29e166745..50c9080c2d 100644
--- a/esphome/components/at581x/__init__.py
+++ b/esphome/components/at581x/__init__.py
@@ -8,6 +8,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@X-Ryl669"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "at581x"
 MULTI_CONF = True
 
 
diff --git a/esphome/components/atc_mithermometer/__init__.py b/esphome/components/atc_mithermometer/__init__.py
index e69de29bb2..3d517583e8 100644
--- a/esphome/components/atc_mithermometer/__init__.py
+++ b/esphome/components/atc_mithermometer/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "atc_mithermometer"
diff --git a/esphome/components/atm90e26/__init__.py b/esphome/components/atm90e26/__init__.py
index ac441a9c2d..b1047e9290 100644
--- a/esphome/components/atm90e26/__init__.py
+++ b/esphome/components/atm90e26/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@danieltwagner"]
+DOMAIN = "atm90e26"
diff --git a/esphome/components/atm90e32/__init__.py b/esphome/components/atm90e32/__init__.py
index 766807872b..d25f5c1ce9 100644
--- a/esphome/components/atm90e32/__init__.py
+++ b/esphome/components/atm90e32/__init__.py
@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 
 CODEOWNERS = ["@circuitsetup", "@descipher"]
+DOMAIN = "atm90e32"
 
 atm90e32_ns = cg.esphome_ns.namespace("atm90e32")
 ATM90E32Component = atm90e32_ns.class_("ATM90E32Component", cg.Component)
diff --git a/esphome/components/audio_adc/__init__.py b/esphome/components/audio_adc/__init__.py
index 7d4b51db04..ba6544b50b 100644
--- a/esphome/components/audio_adc/__init__.py
+++ b/esphome/components/audio_adc/__init__.py
@@ -6,6 +6,7 @@ from esphome.core import CoroPriority, coroutine_with_priority
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@kbx81"]
+DOMAIN = "audio_adc"
 IS_PLATFORM_COMPONENT = True
 
 audio_adc_ns = cg.esphome_ns.namespace("audio_adc")
diff --git a/esphome/components/audio_dac/__init__.py b/esphome/components/audio_dac/__init__.py
index fbaa72014f..346f1be798 100644
--- a/esphome/components/audio_dac/__init__.py
+++ b/esphome/components/audio_dac/__init__.py
@@ -7,6 +7,7 @@ from esphome.core import CoroPriority, coroutine_with_priority
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@kbx81"]
+DOMAIN = "audio_dac"
 IS_PLATFORM_COMPONENT = True
 
 audio_dac_ns = cg.esphome_ns.namespace("audio_dac")
diff --git a/esphome/components/audio_http/__init__.py b/esphome/components/audio_http/__init__.py
index e69de29bb2..0126fa0e8b 100644
--- a/esphome/components/audio_http/__init__.py
+++ b/esphome/components/audio_http/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "audio_http"
diff --git a/esphome/components/axs15231/__init__.py b/esphome/components/axs15231/__init__.py
index 3246dbed24..bed826cf8b 100644
--- a/esphome/components/axs15231/__init__.py
+++ b/esphome/components/axs15231/__init__.py
@@ -2,5 +2,6 @@ import esphome.codegen as cg
 
 CODEOWNERS = ["@clydebarrow"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "axs15231"
 
 axs15231_ns = cg.esphome_ns.namespace("axs15231")
diff --git a/esphome/components/b_parasite/__init__.py b/esphome/components/b_parasite/__init__.py
index e69de29bb2..147319ba95 100644
--- a/esphome/components/b_parasite/__init__.py
+++ b/esphome/components/b_parasite/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "b_parasite"
diff --git a/esphome/components/ballu/__init__.py b/esphome/components/ballu/__init__.py
index e69de29bb2..d0d8d1b3b2 100644
--- a/esphome/components/ballu/__init__.py
+++ b/esphome/components/ballu/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ballu"
diff --git a/esphome/components/bang_bang/__init__.py b/esphome/components/bang_bang/__init__.py
index 71a87b6ae5..6536dc2c4f 100644
--- a/esphome/components/bang_bang/__init__.py
+++ b/esphome/components/bang_bang/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@OttoWinter"]
+DOMAIN = "bang_bang"
diff --git a/esphome/components/bedjet/__init__.py b/esphome/components/bedjet/__init__.py
index 1b967e665a..61dc73c73d 100644
--- a/esphome/components/bedjet/__init__.py
+++ b/esphome/components/bedjet/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@jhansche"]
 DEPENDENCIES = ["ble_client"]
+DOMAIN = "bedjet"
 MULTI_CONF = True
 CONF_BEDJET_ID = "bedjet_id"
 
diff --git a/esphome/components/beken_spi_led_strip/__init__.py b/esphome/components/beken_spi_led_strip/__init__.py
index e69de29bb2..940eabbeb6 100644
--- a/esphome/components/beken_spi_led_strip/__init__.py
+++ b/esphome/components/beken_spi_led_strip/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "beken_spi_led_strip"
diff --git a/esphome/components/bh1750/__init__.py b/esphome/components/bh1750/__init__.py
index e69de29bb2..67b3f5ba5a 100644
--- a/esphome/components/bh1750/__init__.py
+++ b/esphome/components/bh1750/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bh1750"
diff --git a/esphome/components/bh1900nux/__init__.py b/esphome/components/bh1900nux/__init__.py
index e69de29bb2..b5b6c5eac9 100644
--- a/esphome/components/bh1900nux/__init__.py
+++ b/esphome/components/bh1900nux/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bh1900nux"
diff --git a/esphome/components/binary/__init__.py b/esphome/components/binary/__init__.py
index 3f6a45d28a..6244d89b8d 100644
--- a/esphome/components/binary/__init__.py
+++ b/esphome/components/binary/__init__.py
@@ -1,3 +1,5 @@
 import esphome.codegen as cg
 
+DOMAIN = "binary"
+
 binary_ns = cg.esphome_ns.namespace("binary")
diff --git a/esphome/components/binary_sensor/__init__.py b/esphome/components/binary_sensor/__init__.py
index f5cde2c8e6..60e20aa193 100644
--- a/esphome/components/binary_sensor/__init__.py
+++ b/esphome/components/binary_sensor/__init__.py
@@ -106,6 +106,7 @@ DEVICE_CLASSES = [
     DEVICE_CLASS_VIBRATION,
     DEVICE_CLASS_WINDOW,
 ]
+DOMAIN = "binary_sensor"
 
 IS_PLATFORM_COMPONENT = True
 
diff --git a/esphome/components/binary_sensor_map/__init__.py b/esphome/components/binary_sensor_map/__init__.py
index e69de29bb2..3ac51b590e 100644
--- a/esphome/components/binary_sensor_map/__init__.py
+++ b/esphome/components/binary_sensor_map/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "binary_sensor_map"
diff --git a/esphome/components/bk72xx/__init__.py b/esphome/components/bk72xx/__init__.py
index e64237c95a..1db8f5d54f 100644
--- a/esphome/components/bk72xx/__init__.py
+++ b/esphome/components/bk72xx/__init__.py
@@ -35,6 +35,7 @@ from .boards import BK72XX_BOARD_PINS, BK72XX_BOARDS
 
 CODEOWNERS = ["@kuba2k2"]
 AUTO_LOAD = ["libretiny"]
+DOMAIN = "bk72xx"
 IS_TARGET_PLATFORM = True
 
 COMPONENT_DATA = LibreTinyComponent(
diff --git a/esphome/components/bk72xx_ble/__init__.py b/esphome/components/bk72xx_ble/__init__.py
index 38cba56c62..44c66919bb 100644
--- a/esphome/components/bk72xx_ble/__init__.py
+++ b/esphome/components/bk72xx_ble/__init__.py
@@ -38,6 +38,7 @@ from esphome.types import ConfigType
 
 DEPENDENCIES = ["bk72xx"]
 CODEOWNERS = ["@Bl00d-B0b"]
+DOMAIN = "bk72xx_ble"
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/esphome/components/bk72xx_ble_tracker/__init__.py b/esphome/components/bk72xx_ble_tracker/__init__.py
index 55013d4087..abef3c7752 100644
--- a/esphome/components/bk72xx_ble_tracker/__init__.py
+++ b/esphome/components/bk72xx_ble_tracker/__init__.py
@@ -44,6 +44,7 @@ CONF_BK72XX_BLE_ID = "bk72xx_ble_id"
 DEPENDENCIES = ["bk72xx"]
 AUTO_LOAD = ["ble_device_base", "bk72xx_ble"]
 CODEOWNERS = ["@Bl00d-B0b"]
+DOMAIN = "bk72xx_ble_tracker"
 
 ble_device_base.register_hub_provider("bk72xx_ble_tracker")
 
diff --git a/esphome/components/bl0906/__init__.py b/esphome/components/bl0906/__init__.py
index b077792604..b840c0ee99 100644
--- a/esphome/components/bl0906/__init__.py
+++ b/esphome/components/bl0906/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@athom-tech", "@tarontop", "@jesserockz"]
+DOMAIN = "bl0906"
diff --git a/esphome/components/bl0939/__init__.py b/esphome/components/bl0939/__init__.py
index 9bd4598dd2..a2c2dd4c7b 100644
--- a/esphome/components/bl0939/__init__.py
+++ b/esphome/components/bl0939/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@ziceva"]
+DOMAIN = "bl0939"
diff --git a/esphome/components/bl0940/__init__.py b/esphome/components/bl0940/__init__.py
index 066c2818b6..953824be51 100644
--- a/esphome/components/bl0940/__init__.py
+++ b/esphome/components/bl0940/__init__.py
@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 
 CODEOWNERS = ["@tobias-", "@dan-s-github"]
+DOMAIN = "bl0940"
 
 CONF_BL0940_ID = "bl0940_id"
 bl0940_ns = cg.esphome_ns.namespace("bl0940")
diff --git a/esphome/components/bl0942/__init__.py b/esphome/components/bl0942/__init__.py
index 38b68d84b5..89141daae3 100644
--- a/esphome/components/bl0942/__init__.py
+++ b/esphome/components/bl0942/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@dbuezas", "@dwmw2"]
+DOMAIN = "bl0942"
diff --git a/esphome/components/ble_client/__init__.py b/esphome/components/ble_client/__init__.py
index 810f4b66e3..b783ef1c15 100644
--- a/esphome/components/ble_client/__init__.py
+++ b/esphome/components/ble_client/__init__.py
@@ -22,6 +22,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["esp32_ble_client"]
 CODEOWNERS = ["@buxtronix", "@clydebarrow"]
 DEPENDENCIES = ["esp32_ble_tracker"]
+DOMAIN = "ble_client"
 
 CONF_DESCRIPTOR_UUID = "descriptor_uuid"
 CONF_ON_NOTIFY = "on_notify"
diff --git a/esphome/components/ble_device_base/__init__.py b/esphome/components/ble_device_base/__init__.py
index 43ec736727..e8283457c6 100644
--- a/esphome/components/ble_device_base/__init__.py
+++ b/esphome/components/ble_device_base/__init__.py
@@ -41,6 +41,7 @@ from esphome.core import CORE, ID, KEY_CORE, TimePeriod
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@Bl00d-B0b"]
+DOMAIN = "ble_device_base"
 
 CONF_BLE_HUB_ID = "ble_hub_id"
 
diff --git a/esphome/components/ble_nus/__init__.py b/esphome/components/ble_nus/__init__.py
index 40983c4dbb..54f111e4af 100644
--- a/esphome/components/ble_nus/__init__.py
+++ b/esphome/components/ble_nus/__init__.py
@@ -21,6 +21,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["zephyr_ble_server", "uart"]
 CODEOWNERS = ["@tomaszduda23"]
+DOMAIN = "ble_nus"
 
 ble_nus_ns = cg.esphome_ns.namespace("ble_nus")
 BLENUS = ble_nus_ns.class_("BLENUS", cg.Component, UARTComponent)
diff --git a/esphome/components/ble_presence/__init__.py b/esphome/components/ble_presence/__init__.py
index e69de29bb2..0be32a6e95 100644
--- a/esphome/components/ble_presence/__init__.py
+++ b/esphome/components/ble_presence/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ble_presence"
diff --git a/esphome/components/ble_rssi/__init__.py b/esphome/components/ble_rssi/__init__.py
index e69de29bb2..2d31b9aec2 100644
--- a/esphome/components/ble_rssi/__init__.py
+++ b/esphome/components/ble_rssi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ble_rssi"
diff --git a/esphome/components/ble_scanner/__init__.py b/esphome/components/ble_scanner/__init__.py
index e69de29bb2..e687d58e65 100644
--- a/esphome/components/ble_scanner/__init__.py
+++ b/esphome/components/ble_scanner/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ble_scanner"
diff --git a/esphome/components/bluetooth_proxy/__init__.py b/esphome/components/bluetooth_proxy/__init__.py
index c87ad7f595..6332ea6dc1 100644
--- a/esphome/components/bluetooth_proxy/__init__.py
+++ b/esphome/components/bluetooth_proxy/__init__.py
@@ -58,6 +58,7 @@ _HUB_PLATFORMS = (PLATFORM_BK72XX, PLATFORM_LN882X, PLATFORM_RP2)
 
 DEPENDENCIES = ["api"]
 CODEOWNERS = ["@jesserockz", "@bdraco"]
+DOMAIN = "bluetooth_proxy"
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/esphome/components/bm8563/__init__.py b/esphome/components/bm8563/__init__.py
index 20254a8b00..c3d1fd8cf6 100644
--- a/esphome/components/bm8563/__init__.py
+++ b/esphome/components/bm8563/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@abmantis"]
+DOMAIN = "bm8563"
diff --git a/esphome/components/bme280_base/__init__.py b/esphome/components/bme280_base/__init__.py
index 4b079def64..8d54cbed2a 100644
--- a/esphome/components/bme280_base/__init__.py
+++ b/esphome/components/bme280_base/__init__.py
@@ -20,6 +20,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "bme280_base"
 
 bme280_ns = cg.esphome_ns.namespace("bme280_base")
 BME280Oversampling = bme280_ns.enum("BME280Oversampling")
diff --git a/esphome/components/bme280_i2c/__init__.py b/esphome/components/bme280_i2c/__init__.py
index e69de29bb2..d57004f5fb 100644
--- a/esphome/components/bme280_i2c/__init__.py
+++ b/esphome/components/bme280_i2c/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bme280_i2c"
diff --git a/esphome/components/bme280_spi/__init__.py b/esphome/components/bme280_spi/__init__.py
index e69de29bb2..5ca2ba4595 100644
--- a/esphome/components/bme280_spi/__init__.py
+++ b/esphome/components/bme280_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bme280_spi"
diff --git a/esphome/components/bme680/__init__.py b/esphome/components/bme680/__init__.py
index e69de29bb2..1ebff77202 100644
--- a/esphome/components/bme680/__init__.py
+++ b/esphome/components/bme680/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bme680"
diff --git a/esphome/components/bme680_bsec/__init__.py b/esphome/components/bme680_bsec/__init__.py
index 35df2a7ea3..190994b2f8 100644
--- a/esphome/components/bme680_bsec/__init__.py
+++ b/esphome/components/bme680_bsec/__init__.py
@@ -9,6 +9,7 @@ CODEOWNERS = ["@trvrnrth"]
 DEPENDENCIES = ["i2c"]
 AUTO_LOAD = ["sensor", "text_sensor"]
 CONFLICTS_WITH = ["bme68x_bsec2"]
+DOMAIN = "bme680_bsec"
 MULTI_CONF = True
 
 CONF_BME680_BSEC_ID = "bme680_bsec_id"
diff --git a/esphome/components/bme68x_bsec2_i2c/__init__.py b/esphome/components/bme68x_bsec2_i2c/__init__.py
index 1da3bdbd6c..8c50f6e165 100644
--- a/esphome/components/bme68x_bsec2_i2c/__init__.py
+++ b/esphome/components/bme68x_bsec2_i2c/__init__.py
@@ -9,6 +9,7 @@ import esphome.config_validation as cv
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@neffs", "@kbx81"]
+DOMAIN = "bme68x_bsec2_i2c"
 
 AUTO_LOAD = ["bme68x_bsec2"]
 DEPENDENCIES = ["i2c"]
diff --git a/esphome/components/bmi160/__init__.py b/esphome/components/bmi160/__init__.py
index 49b6d0252a..75386e9857 100644
--- a/esphome/components/bmi160/__init__.py
+++ b/esphome/components/bmi160/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@flaviut"]
+DOMAIN = "bmi160"
diff --git a/esphome/components/bmi270/__init__.py b/esphome/components/bmi270/__init__.py
index 0e67e41a0e..499e88b5b1 100644
--- a/esphome/components/bmi270/__init__.py
+++ b/esphome/components/bmi270/__init__.py
@@ -3,6 +3,7 @@ from esphome.components import i2c
 from esphome.components.motion import MotionComponent
 
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "bmi270"
 
 CONF_BMI270_ID = "bmi270_id"
 #  C++ namespace / class
diff --git a/esphome/components/bmp085/__init__.py b/esphome/components/bmp085/__init__.py
index e69de29bb2..51355f5bc0 100644
--- a/esphome/components/bmp085/__init__.py
+++ b/esphome/components/bmp085/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bmp085"
diff --git a/esphome/components/bmp280/__init__.py b/esphome/components/bmp280/__init__.py
index e69de29bb2..99130dd4e1 100644
--- a/esphome/components/bmp280/__init__.py
+++ b/esphome/components/bmp280/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bmp280"
diff --git a/esphome/components/bmp280_base/__init__.py b/esphome/components/bmp280_base/__init__.py
index a956ed34f6..68d9145378 100644
--- a/esphome/components/bmp280_base/__init__.py
+++ b/esphome/components/bmp280_base/__init__.py
@@ -17,6 +17,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@ademuri"]
+DOMAIN = "bmp280_base"
 
 bmp280_ns = cg.esphome_ns.namespace("bmp280_base")
 BMP280Oversampling = bmp280_ns.enum("BMP280Oversampling")
diff --git a/esphome/components/bmp280_i2c/__init__.py b/esphome/components/bmp280_i2c/__init__.py
index e69de29bb2..38fc9582e5 100644
--- a/esphome/components/bmp280_i2c/__init__.py
+++ b/esphome/components/bmp280_i2c/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bmp280_i2c"
diff --git a/esphome/components/bmp280_spi/__init__.py b/esphome/components/bmp280_spi/__init__.py
index e69de29bb2..2b67436333 100644
--- a/esphome/components/bmp280_spi/__init__.py
+++ b/esphome/components/bmp280_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bmp280_spi"
diff --git a/esphome/components/bmp3xx/__init__.py b/esphome/components/bmp3xx/__init__.py
index e69de29bb2..076eafa8e7 100644
--- a/esphome/components/bmp3xx/__init__.py
+++ b/esphome/components/bmp3xx/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bmp3xx"
diff --git a/esphome/components/bmp3xx_base/__init__.py b/esphome/components/bmp3xx_base/__init__.py
index 6d0618e136..de9b227aac 100644
--- a/esphome/components/bmp3xx_base/__init__.py
+++ b/esphome/components/bmp3xx_base/__init__.py
@@ -17,6 +17,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@martgras", "@latonita"]
+DOMAIN = "bmp3xx_base"
 
 bmp3xx_ns = cg.esphome_ns.namespace("bmp3xx_base")
 Oversampling = bmp3xx_ns.enum("Oversampling")
diff --git a/esphome/components/bmp3xx_i2c/__init__.py b/esphome/components/bmp3xx_i2c/__init__.py
index e69de29bb2..87cf0e5261 100644
--- a/esphome/components/bmp3xx_i2c/__init__.py
+++ b/esphome/components/bmp3xx_i2c/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bmp3xx_i2c"
diff --git a/esphome/components/bmp3xx_spi/__init__.py b/esphome/components/bmp3xx_spi/__init__.py
index e69de29bb2..6e04124ccb 100644
--- a/esphome/components/bmp3xx_spi/__init__.py
+++ b/esphome/components/bmp3xx_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bmp3xx_spi"
diff --git a/esphome/components/bmp581/__init__.py b/esphome/components/bmp581/__init__.py
index e69de29bb2..ad0da1d8f7 100644
--- a/esphome/components/bmp581/__init__.py
+++ b/esphome/components/bmp581/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bmp581"
diff --git a/esphome/components/bmp581_base/__init__.py b/esphome/components/bmp581_base/__init__.py
index 5d031a8208..18c18a2e9b 100644
--- a/esphome/components/bmp581_base/__init__.py
+++ b/esphome/components/bmp581_base/__init__.py
@@ -19,6 +19,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@kahrendt", "@danielkent-net"]
+DOMAIN = "bmp581_base"
 
 bmp581_ns = cg.esphome_ns.namespace("bmp581_base")
 
diff --git a/esphome/components/bmp581_i2c/__init__.py b/esphome/components/bmp581_i2c/__init__.py
index e69de29bb2..a5c70d3d42 100644
--- a/esphome/components/bmp581_i2c/__init__.py
+++ b/esphome/components/bmp581_i2c/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bmp581_i2c"
diff --git a/esphome/components/bmp581_spi/__init__.py b/esphome/components/bmp581_spi/__init__.py
index e69de29bb2..d8f525adce 100644
--- a/esphome/components/bmp581_spi/__init__.py
+++ b/esphome/components/bmp581_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "bmp581_spi"
diff --git a/esphome/components/bp1658cj/__init__.py b/esphome/components/bp1658cj/__init__.py
index b45272d2ea..76b3d427a4 100644
--- a/esphome/components/bp1658cj/__init__.py
+++ b/esphome/components/bp1658cj/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_CLOCK_PIN, CONF_DATA_PIN, CONF_ID
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@Cossid"]
+DOMAIN = "bp1658cj"
 MULTI_CONF = True
 
 CONF_MAX_POWER_COLOR_CHANNELS = "max_power_color_channels"
diff --git a/esphome/components/bp5758d/__init__.py b/esphome/components/bp5758d/__init__.py
index fa4e8a231b..bd6b6ca110 100644
--- a/esphome/components/bp5758d/__init__.py
+++ b/esphome/components/bp5758d/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_CLOCK_PIN, CONF_DATA_PIN, CONF_ID
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@Cossid"]
+DOMAIN = "bp5758d"
 MULTI_CONF = True
 
 AUTO_LOAD = ["output"]
diff --git a/esphome/components/bthome_mithermometer/__init__.py b/esphome/components/bthome_mithermometer/__init__.py
index ed0cbaa9e1..fe78162c65 100644
--- a/esphome/components/bthome_mithermometer/__init__.py
+++ b/esphome/components/bthome_mithermometer/__init__.py
@@ -8,6 +8,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@nagyrobi"]
 AUTO_LOAD = ["ble_device_base"]
+DOMAIN = "bthome_mithermometer"
 
 
 bthome_mithermometer_ns = cg.esphome_ns.namespace("bthome_mithermometer")
diff --git a/esphome/components/button/__init__.py b/esphome/components/button/__init__.py
index 342f451509..f27475bdca 100644
--- a/esphome/components/button/__init__.py
+++ b/esphome/components/button/__init__.py
@@ -28,6 +28,7 @@ from esphome.cpp_generator import MockObj, MockObjClass
 from esphome.types import ConfigType, SafeExpType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "button"
 IS_PLATFORM_COMPONENT = True
 
 DEVICE_CLASSES = [
diff --git a/esphome/components/bytebuffer/__init__.py b/esphome/components/bytebuffer/__init__.py
index 3c7c695118..df0c76338c 100644
--- a/esphome/components/bytebuffer/__init__.py
+++ b/esphome/components/bytebuffer/__init__.py
@@ -1,4 +1,5 @@
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "bytebuffer"
 
 # Allows bytebuffer to be configured in yaml, to allow use of the C++ api.
 
diff --git a/esphome/components/camera/__init__.py b/esphome/components/camera/__init__.py
index a19f7707af..0cb916ac49 100644
--- a/esphome/components/camera/__init__.py
+++ b/esphome/components/camera/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@DT-art1", "@bdraco"]
+DOMAIN = "camera"
diff --git a/esphome/components/camera_encoder/__init__.py b/esphome/components/camera_encoder/__init__.py
index 344248fcf3..f63c316126 100644
--- a/esphome/components/camera_encoder/__init__.py
+++ b/esphome/components/camera_encoder/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_BUFFER_SIZE, CONF_ID, CONF_TYPE
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@DT-art1"]
+DOMAIN = "camera_encoder"
 
 AUTO_LOAD = ["camera"]
 
diff --git a/esphome/components/canbus/__init__.py b/esphome/components/canbus/__init__.py
index b70bac7265..51bda0c75d 100644
--- a/esphome/components/canbus/__init__.py
+++ b/esphome/components/canbus/__init__.py
@@ -10,6 +10,7 @@ from esphome.cpp_generator import MockObj, TemplateArgsType
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@mvturnho", "@danielschramm"]
+DOMAIN = "canbus"
 IS_PLATFORM_COMPONENT = True
 
 CONF_CAN_ID = "can_id"
diff --git a/esphome/components/cap1188/__init__.py b/esphome/components/cap1188/__init__.py
index eff0a05163..24f6e627d2 100644
--- a/esphome/components/cap1188/__init__.py
+++ b/esphome/components/cap1188/__init__.py
@@ -11,6 +11,7 @@ CONF_ALLOW_MULTIPLE_TOUCHES = "allow_multiple_touches"
 DEPENDENCIES = ["i2c"]
 AUTO_LOAD = ["binary_sensor", "output"]
 CODEOWNERS = ["@mreditor97"]
+DOMAIN = "cap1188"
 
 cap1188_ns = cg.esphome_ns.namespace("cap1188")
 CONF_CAP1188_ID = "cap1188_id"
diff --git a/esphome/components/captive_portal/__init__.py b/esphome/components/captive_portal/__init__.py
index e490d89062..fd4daab6df 100644
--- a/esphome/components/captive_portal/__init__.py
+++ b/esphome/components/captive_portal/__init__.py
@@ -34,6 +34,7 @@ def AUTO_LOAD() -> list[str]:
 
 DEPENDENCIES = ["wifi"]
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "captive_portal"
 
 captive_portal_ns = cg.esphome_ns.namespace("captive_portal")
 CaptivePortal = captive_portal_ns.class_("CaptivePortal", cg.Component)
diff --git a/esphome/components/cc1101/__init__.py b/esphome/components/cc1101/__init__.py
index 65d5d6d9f1..8b9e91f833 100644
--- a/esphome/components/cc1101/__init__.py
+++ b/esphome/components/cc1101/__init__.py
@@ -16,6 +16,7 @@ from esphome.const import (
 
 CODEOWNERS = ["@lygris", "@gabest11"]
 DEPENDENCIES = ["spi"]
+DOMAIN = "cc1101"
 MULTI_CONF = True
 
 ns = cg.esphome_ns.namespace("cc1101")
diff --git a/esphome/components/ccs811/__init__.py b/esphome/components/ccs811/__init__.py
index e69de29bb2..4a86948d39 100644
--- a/esphome/components/ccs811/__init__.py
+++ b/esphome/components/ccs811/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ccs811"
diff --git a/esphome/components/cd74hc4067/__init__.py b/esphome/components/cd74hc4067/__init__.py
index 5f7778e186..655b8db819 100644
--- a/esphome/components/cd74hc4067/__init__.py
+++ b/esphome/components/cd74hc4067/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["sensor", "voltage_sampler"]
 CODEOWNERS = ["@asoehlke"]
+DOMAIN = "cd74hc4067"
 MULTI_CONF = True
 
 cd74hc4067_ns = cg.esphome_ns.namespace("cd74hc4067")
diff --git a/esphome/components/cdc_acm_uart/__init__.py b/esphome/components/cdc_acm_uart/__init__.py
index 516af84856..9d5c0a3e95 100644
--- a/esphome/components/cdc_acm_uart/__init__.py
+++ b/esphome/components/cdc_acm_uart/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@kbx81"]
+DOMAIN = "cdc_acm_uart"
diff --git a/esphome/components/ch422g/__init__.py b/esphome/components/ch422g/__init__.py
index 7f0c5bb95e..5110503bf8 100644
--- a/esphome/components/ch422g/__init__.py
+++ b/esphome/components/ch422g/__init__.py
@@ -18,6 +18,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@jesterret", "@clydebarrow"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "ch422g"
 MULTI_CONF = True
 ch422g_ns = cg.esphome_ns.namespace("ch422g")
 
diff --git a/esphome/components/ch423/__init__.py b/esphome/components/ch423/__init__.py
index 9fbf3ea515..45d8423beb 100644
--- a/esphome/components/ch423/__init__.py
+++ b/esphome/components/ch423/__init__.py
@@ -19,6 +19,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@dwmw2"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "ch423"
 MULTI_CONF = True
 ch423_ns = cg.esphome_ns.namespace("ch423")
 
diff --git a/esphome/components/chsc6x/__init__.py b/esphome/components/chsc6x/__init__.py
index 80f3a0b33e..bbdc870773 100644
--- a/esphome/components/chsc6x/__init__.py
+++ b/esphome/components/chsc6x/__init__.py
@@ -1,2 +1,3 @@
 CODEOWNERS = ["@kkosik20"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "chsc6x"
diff --git a/esphome/components/climate/__init__.py b/esphome/components/climate/__init__.py
index e64092d30e..17aeb1467d 100644
--- a/esphome/components/climate/__init__.py
+++ b/esphome/components/climate/__init__.py
@@ -62,6 +62,7 @@ from esphome.types import ConfigType, SafeExpType
 IS_PLATFORM_COMPONENT = True
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "climate"
 climate_ns = cg.esphome_ns.namespace("climate")
 
 Climate = climate_ns.class_("Climate", cg.EntityBase)
diff --git a/esphome/components/climate_ir/__init__.py b/esphome/components/climate_ir/__init__.py
index f5a31b31c4..f4b43e3a52 100644
--- a/esphome/components/climate_ir/__init__.py
+++ b/esphome/components/climate_ir/__init__.py
@@ -19,6 +19,7 @@ CONF_SUPPORTS_HEAT_COOL = "supports_heat_cool"
 DEPENDENCIES = ["remote_transmitter"]
 AUTO_LOAD = ["sensor", "remote_base"]
 CODEOWNERS = ["@glmnet"]
+DOMAIN = "climate_ir"
 
 climate_ir_ns = cg.esphome_ns.namespace("climate_ir")
 ClimateIR = climate_ir_ns.class_(
diff --git a/esphome/components/climate_ir_lg/__init__.py b/esphome/components/climate_ir_lg/__init__.py
index e69de29bb2..b62e9d17fb 100644
--- a/esphome/components/climate_ir_lg/__init__.py
+++ b/esphome/components/climate_ir_lg/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "climate_ir_lg"
diff --git a/esphome/components/cm1106/__init__.py b/esphome/components/cm1106/__init__.py
index fa3c3f1925..24203304ae 100644
--- a/esphome/components/cm1106/__init__.py
+++ b/esphome/components/cm1106/__init__.py
@@ -1 +1,3 @@
 """CM1106 component for ESPHome."""
+
+DOMAIN = "cm1106"
diff --git a/esphome/components/color/__init__.py b/esphome/components/color/__init__.py
index 70240eff07..49978c29c2 100644
--- a/esphome/components/color/__init__.py
+++ b/esphome/components/color/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 ColorStruct = cg.esphome_ns.struct("Color")
 
+DOMAIN = "color"
 INSTANCE_TYPE = ColorStruct
 
 MULTI_CONF = True
diff --git a/esphome/components/color_temperature/__init__.py b/esphome/components/color_temperature/__init__.py
index e69de29bb2..2c38fe6fc6 100644
--- a/esphome/components/color_temperature/__init__.py
+++ b/esphome/components/color_temperature/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "color_temperature"
diff --git a/esphome/components/combination/__init__.py b/esphome/components/combination/__init__.py
index e69de29bb2..7625bf2d02 100644
--- a/esphome/components/combination/__init__.py
+++ b/esphome/components/combination/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "combination"
diff --git a/esphome/components/const/__init__.py b/esphome/components/const/__init__.py
index 6e98162baa..6eeab52e29 100644
--- a/esphome/components/const/__init__.py
+++ b/esphome/components/const/__init__.py
@@ -1,6 +1,7 @@
 """Constants used by esphome components."""
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "const"
 
 BYTE_ORDER_LITTLE = "little_endian"
 BYTE_ORDER_BIG = "big_endian"
diff --git a/esphome/components/coolix/__init__.py b/esphome/components/coolix/__init__.py
index e69de29bb2..e916a94238 100644
--- a/esphome/components/coolix/__init__.py
+++ b/esphome/components/coolix/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "coolix"
diff --git a/esphome/components/copy/__init__.py b/esphome/components/copy/__init__.py
index 7594894650..917991b2fc 100644
--- a/esphome/components/copy/__init__.py
+++ b/esphome/components/copy/__init__.py
@@ -1,5 +1,6 @@
 import esphome.codegen as cg
 
 CODEOWNERS = ["@OttoWinter"]
+DOMAIN = "copy"
 
 copy_ns = cg.esphome_ns.namespace("copy")
diff --git a/esphome/components/counter/__init__.py b/esphome/components/counter/__init__.py
index c58ce8a01e..a85a88d6e6 100644
--- a/esphome/components/counter/__init__.py
+++ b/esphome/components/counter/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "counter"
diff --git a/esphome/components/cover/__init__.py b/esphome/components/cover/__init__.py
index 0f5aa9b450..c570f3d4ca 100644
--- a/esphome/components/cover/__init__.py
+++ b/esphome/components/cover/__init__.py
@@ -62,6 +62,7 @@ DEVICE_CLASSES = [
     DEVICE_CLASS_SHUTTER,
     DEVICE_CLASS_WINDOW,
 ]
+DOMAIN = "cover"
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/esphome/components/cs5460a/__init__.py b/esphome/components/cs5460a/__init__.py
index e69de29bb2..2ea88409a9 100644
--- a/esphome/components/cs5460a/__init__.py
+++ b/esphome/components/cs5460a/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "cs5460a"
diff --git a/esphome/components/cse7761/__init__.py b/esphome/components/cse7761/__init__.py
index e69de29bb2..3db7e9a1d4 100644
--- a/esphome/components/cse7761/__init__.py
+++ b/esphome/components/cse7761/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "cse7761"
diff --git a/esphome/components/cse7766/__init__.py b/esphome/components/cse7766/__init__.py
index e69de29bb2..df45f6395c 100644
--- a/esphome/components/cse7766/__init__.py
+++ b/esphome/components/cse7766/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "cse7766"
diff --git a/esphome/components/cst226/__init__.py b/esphome/components/cst226/__init__.py
index 847e44dbda..5bccdc1cba 100644
--- a/esphome/components/cst226/__init__.py
+++ b/esphome/components/cst226/__init__.py
@@ -2,5 +2,6 @@ import esphome.codegen as cg
 
 CODEOWNERS = ["@clydebarrow"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "cst226"
 
 cst226_ns = cg.esphome_ns.namespace("cst226")
diff --git a/esphome/components/cst328/__init__.py b/esphome/components/cst328/__init__.py
index 374df64898..6b10398969 100644
--- a/esphome/components/cst328/__init__.py
+++ b/esphome/components/cst328/__init__.py
@@ -2,5 +2,6 @@ import esphome.codegen as cg
 
 CODEOWNERS = ["@latonita"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "cst328"
 
 cst328_ns = cg.esphome_ns.namespace("cst328")
diff --git a/esphome/components/cst816/__init__.py b/esphome/components/cst816/__init__.py
index 674a80b7c1..8d6e15abc5 100644
--- a/esphome/components/cst816/__init__.py
+++ b/esphome/components/cst816/__init__.py
@@ -2,5 +2,6 @@ import esphome.codegen as cg
 
 CODEOWNERS = ["@clydebarrow"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "cst816"
 
 cst816_ns = cg.esphome_ns.namespace("cst816")
diff --git a/esphome/components/cst9220/__init__.py b/esphome/components/cst9220/__init__.py
index f97c8944ef..e3de3243e0 100644
--- a/esphome/components/cst9220/__init__.py
+++ b/esphome/components/cst9220/__init__.py
@@ -2,5 +2,6 @@ import esphome.codegen as cg
 
 CODEOWNERS = ["@clydebarrow"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "cst9220"
 
 cst9220_ns = cg.esphome_ns.namespace("cst9220")
diff --git a/esphome/components/ct_clamp/__init__.py b/esphome/components/ct_clamp/__init__.py
index e69de29bb2..f7ab2905b2 100644
--- a/esphome/components/ct_clamp/__init__.py
+++ b/esphome/components/ct_clamp/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ct_clamp"
diff --git a/esphome/components/current_based/__init__.py b/esphome/components/current_based/__init__.py
index e7f41154b7..0ef871eeed 100644
--- a/esphome/components/current_based/__init__.py
+++ b/esphome/components/current_based/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@djwmarcx"]
+DOMAIN = "current_based"
diff --git a/esphome/components/custom/__init__.py b/esphome/components/custom/__init__.py
index e69de29bb2..4eb4f32c12 100644
--- a/esphome/components/custom/__init__.py
+++ b/esphome/components/custom/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "custom"
diff --git a/esphome/components/custom_component/__init__.py b/esphome/components/custom_component/__init__.py
index 982153414d..395f140d6c 100644
--- a/esphome/components/custom_component/__init__.py
+++ b/esphome/components/custom_component/__init__.py
@@ -1,5 +1,6 @@
 import esphome.config_validation as cv
 
+DOMAIN = "custom_component"
 MULTI_CONF = True
 
 CONFIG_SCHEMA = cv.invalid(
diff --git a/esphome/components/cwww/__init__.py b/esphome/components/cwww/__init__.py
index e69de29bb2..2da0e50fa0 100644
--- a/esphome/components/cwww/__init__.py
+++ b/esphome/components/cwww/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "cwww"
diff --git a/esphome/components/d01/__init__.py b/esphome/components/d01/__init__.py
index e69de29bb2..45595aada3 100644
--- a/esphome/components/d01/__init__.py
+++ b/esphome/components/d01/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "d01"
diff --git a/esphome/components/dac7678/__init__.py b/esphome/components/dac7678/__init__.py
index 668cc87cec..4ee9f1f541 100644
--- a/esphome/components/dac7678/__init__.py
+++ b/esphome/components/dac7678/__init__.py
@@ -8,6 +8,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["output"]
 CODEOWNERS = ["@NickB1"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "dac7678"
 MULTI_CONF = True
 
 dac7678_ns = cg.esphome_ns.namespace("dac7678")
diff --git a/esphome/components/daikin/__init__.py b/esphome/components/daikin/__init__.py
index e69de29bb2..cc5617d4d5 100644
--- a/esphome/components/daikin/__init__.py
+++ b/esphome/components/daikin/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "daikin"
diff --git a/esphome/components/daikin_arc/__init__.py b/esphome/components/daikin_arc/__init__.py
index f9164fb02b..39d99e9da0 100644
--- a/esphome/components/daikin_arc/__init__.py
+++ b/esphome/components/daikin_arc/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@MagicBear"]
+DOMAIN = "daikin_arc"
diff --git a/esphome/components/daikin_brc/__init__.py b/esphome/components/daikin_brc/__init__.py
index 69002c015f..c9352db073 100644
--- a/esphome/components/daikin_brc/__init__.py
+++ b/esphome/components/daikin_brc/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@hagak"]
+DOMAIN = "daikin_brc"
diff --git a/esphome/components/dallas/__init__.py b/esphome/components/dallas/__init__.py
index 6c2a9d830e..7d55ae9129 100644
--- a/esphome/components/dallas/__init__.py
+++ b/esphome/components/dallas/__init__.py
@@ -1,5 +1,6 @@
 import esphome.config_validation as cv
 
+DOMAIN = "dallas"
 MULTI_CONF = True
 
 CONFIG_SCHEMA = cv.invalid(
diff --git a/esphome/components/dallas_temp/__init__.py b/esphome/components/dallas_temp/__init__.py
index 3f73044ca8..6a7af3ad4d 100644
--- a/esphome/components/dallas_temp/__init__.py
+++ b/esphome/components/dallas_temp/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@ssieb"]
+DOMAIN = "dallas_temp"
diff --git a/esphome/components/daly_bms/__init__.py b/esphome/components/daly_bms/__init__.py
index c0d7d0aa62..01d0eef857 100644
--- a/esphome/components/daly_bms/__init__.py
+++ b/esphome/components/daly_bms/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ADDRESS, CONF_ID
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@s1lvi0"]
+DOMAIN = "daly_bms"
 MULTI_CONF = True
 DEPENDENCIES = ["uart"]
 
diff --git a/esphome/components/dashboard_import/__init__.py b/esphome/components/dashboard_import/__init__.py
index 906e9762bf..aca0901d2b 100644
--- a/esphome/components/dashboard_import/__init__.py
+++ b/esphome/components/dashboard_import/__init__.py
@@ -22,6 +22,7 @@ dashboard_import_ns = cg.esphome_ns.namespace("dashboard_import")
 # is enabled
 DEPENDENCIES = ["api"]
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "dashboard_import"
 
 
 def validate_import_url(value: Any) -> str:
diff --git a/esphome/components/datetime/__init__.py b/esphome/components/datetime/__init__.py
index 3a33e5e004..de79c05a9f 100644
--- a/esphome/components/datetime/__init__.py
+++ b/esphome/components/datetime/__init__.py
@@ -33,6 +33,7 @@ from esphome.cpp_generator import MockObj, MockObjClass
 from esphome.types import ConfigType, SafeExpType
 
 CODEOWNERS = ["@rfdarter", "@jesserockz"]
+DOMAIN = "datetime"
 
 IS_PLATFORM_COMPONENT = True
 
diff --git a/esphome/components/debug/__init__.py b/esphome/components/debug/__init__.py
index 898d7d6c0e..889cfaaa68 100644
--- a/esphome/components/debug/__init__.py
+++ b/esphome/components/debug/__init__.py
@@ -17,6 +17,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
 DEPENDENCIES = ["logger"]
+DOMAIN = "debug"
 
 CONF_DEBUG_ID = "debug_id"
 debug_ns = cg.esphome_ns.namespace("debug")
diff --git a/esphome/components/deep_sleep/__init__.py b/esphome/components/deep_sleep/__init__.py
index 06286933b9..2b820c9be6 100644
--- a/esphome/components/deep_sleep/__init__.py
+++ b/esphome/components/deep_sleep/__init__.py
@@ -491,6 +491,7 @@ for _name, _call in (
     )
 
 
+DOMAIN = "deep_sleep"
 FILTER_SOURCE_FILES = filter_source_files_from_platform(
     {
         "deep_sleep_esp32.cpp": {
diff --git a/esphome/components/delonghi/__init__.py b/esphome/components/delonghi/__init__.py
index 0a81eb2da7..ba66077c84 100644
--- a/esphome/components/delonghi/__init__.py
+++ b/esphome/components/delonghi/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@grob6000"]
+DOMAIN = "delonghi"
diff --git a/esphome/components/demo/__init__.py b/esphome/components/demo/__init__.py
index 75feaa65af..8f2d5ded20 100644
--- a/esphome/components/demo/__init__.py
+++ b/esphome/components/demo/__init__.py
@@ -76,6 +76,7 @@ AUTO_LOAD = [
     "text_sensor",
     "valve",
 ]
+DOMAIN = "demo"
 
 demo_ns = cg.esphome_ns.namespace("demo")
 DemoAlarmControlPanel = demo_ns.class_(
diff --git a/esphome/components/dew_point/__init__.py b/esphome/components/dew_point/__init__.py
index 3b852436c3..ab61f55f0b 100644
--- a/esphome/components/dew_point/__init__.py
+++ b/esphome/components/dew_point/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@CFlix"]
+DOMAIN = "dew_point"
diff --git a/esphome/components/dfplayer/__init__.py b/esphome/components/dfplayer/__init__.py
index 296afcd318..d4ec9d6590 100644
--- a/esphome/components/dfplayer/__init__.py
+++ b/esphome/components/dfplayer/__init__.py
@@ -9,6 +9,7 @@ from esphome.const import CONF_DEVICE, CONF_FILE, CONF_ID, CONF_VOLUME
 
 DEPENDENCIES = ["uart"]
 CODEOWNERS = ["@glmnet"]
+DOMAIN = "dfplayer"
 
 dfplayer_ns = cg.esphome_ns.namespace("dfplayer")
 DFPlayer = dfplayer_ns.class_("DFPlayer", cg.Component)
diff --git a/esphome/components/dfrobot_sen0395/__init__.py b/esphome/components/dfrobot_sen0395/__init__.py
index 6334e10ac5..d4e7aed91d 100644
--- a/esphome/components/dfrobot_sen0395/__init__.py
+++ b/esphome/components/dfrobot_sen0395/__init__.py
@@ -12,6 +12,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@niklasweber"]
 DEPENDENCIES = ["uart"]
+DOMAIN = "dfrobot_sen0395"
 MULTI_CONF = True
 
 dfrobot_sen0395_ns = cg.esphome_ns.namespace("dfrobot_sen0395")
diff --git a/esphome/components/dht/__init__.py b/esphome/components/dht/__init__.py
index 71a87b6ae5..9def421103 100644
--- a/esphome/components/dht/__init__.py
+++ b/esphome/components/dht/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@OttoWinter"]
+DOMAIN = "dht"
diff --git a/esphome/components/dht12/__init__.py b/esphome/components/dht12/__init__.py
index e69de29bb2..0078da3300 100644
--- a/esphome/components/dht12/__init__.py
+++ b/esphome/components/dht12/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "dht12"
diff --git a/esphome/components/display_menu_base/__init__.py b/esphome/components/display_menu_base/__init__.py
index bb493ae8d3..9d046dbc19 100644
--- a/esphome/components/display_menu_base/__init__.py
+++ b/esphome/components/display_menu_base/__init__.py
@@ -25,6 +25,7 @@ from esphome.const import (
 )
 
 CODEOWNERS = ["@numo68"]
+DOMAIN = "display_menu_base"
 
 display_menu_base_ns = cg.esphome_ns.namespace("display_menu_base")
 
diff --git a/esphome/components/dlms_meter/__init__.py b/esphome/components/dlms_meter/__init__.py
index 00a1694cc3..09423c7d8c 100644
--- a/esphome/components/dlms_meter/__init__.py
+++ b/esphome/components/dlms_meter/__init__.py
@@ -19,6 +19,7 @@ _LOGGER = logging.getLogger(__name__)
 
 CODEOWNERS = ["@SimonFischer04", "@Tomer27cz", "@latonita", "@PolarGoose"]
 DEPENDENCIES = ["uart"]
+DOMAIN = "dlms_meter"
 
 CONF_DLMS_METER_ID = "dlms_meter_id"
 CONF_DECRYPTION_KEY = "decryption_key"
diff --git a/esphome/components/dps310/__init__.py b/esphome/components/dps310/__init__.py
index e69de29bb2..52f2a4105e 100644
--- a/esphome/components/dps310/__init__.py
+++ b/esphome/components/dps310/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "dps310"
diff --git a/esphome/components/ds1307/__init__.py b/esphome/components/ds1307/__init__.py
index e69de29bb2..fa275ded95 100644
--- a/esphome/components/ds1307/__init__.py
+++ b/esphome/components/ds1307/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ds1307"
diff --git a/esphome/components/ds1603l/__init__.py b/esphome/components/ds1603l/__init__.py
index e69de29bb2..81c65f4fd3 100644
--- a/esphome/components/ds1603l/__init__.py
+++ b/esphome/components/ds1603l/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ds1603l"
diff --git a/esphome/components/ds2484/__init__.py b/esphome/components/ds2484/__init__.py
index 3d9f24ff19..f101dedc01 100644
--- a/esphome/components/ds2484/__init__.py
+++ b/esphome/components/ds2484/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@mrk-its"]
+DOMAIN = "ds2484"
diff --git a/esphome/components/ds248x/__init__.py b/esphome/components/ds248x/__init__.py
index a2e2a87ed0..3a2cb34747 100644
--- a/esphome/components/ds248x/__init__.py
+++ b/esphome/components/ds248x/__init__.py
@@ -6,6 +6,7 @@ from esphome.const import CONF_ID, CONF_SLEEP_PIN, CONF_TYPE
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@tomwellnitz"]
+DOMAIN = "ds248x"
 MULTI_CONF = True
 DEPENDENCIES = ["i2c"]
 
diff --git a/esphome/components/dsmr/__init__.py b/esphome/components/dsmr/__init__.py
index 96a1e75668..176192b241 100644
--- a/esphome/components/dsmr/__init__.py
+++ b/esphome/components/dsmr/__init__.py
@@ -16,6 +16,7 @@ from esphome.types import ConfigType
 _LOGGER = logging.getLogger(__name__)
 
 CODEOWNERS = ["@glmnet", "@PolarGoose"]
+DOMAIN = "dsmr"
 
 MULTI_CONF = True
 
diff --git a/esphome/components/duty_cycle/__init__.py b/esphome/components/duty_cycle/__init__.py
index e69de29bb2..8d11f04488 100644
--- a/esphome/components/duty_cycle/__init__.py
+++ b/esphome/components/duty_cycle/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "duty_cycle"
diff --git a/esphome/components/duty_time/__init__.py b/esphome/components/duty_time/__init__.py
index b708cee80b..258253e4eb 100644
--- a/esphome/components/duty_time/__init__.py
+++ b/esphome/components/duty_time/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@dudanov"]
+DOMAIN = "duty_time"
diff --git a/esphome/components/e131/__init__.py b/esphome/components/e131/__init__.py
index 3b1eb99e60..dbe9b1e45c 100644
--- a/esphome/components/e131/__init__.py
+++ b/esphome/components/e131/__init__.py
@@ -9,6 +9,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["socket"]
 DEPENDENCIES = ["network"]
+DOMAIN = "e131"
 
 e131_ns = cg.esphome_ns.namespace("e131")
 E131AddressableLightEffect = e131_ns.class_(
diff --git a/esphome/components/ee895/__init__.py b/esphome/components/ee895/__init__.py
index e69de29bb2..82043233c3 100644
--- a/esphome/components/ee895/__init__.py
+++ b/esphome/components/ee895/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ee895"
diff --git a/esphome/components/ektf2232/__init__.py b/esphome/components/ektf2232/__init__.py
index e69de29bb2..03f83e2a58 100644
--- a/esphome/components/ektf2232/__init__.py
+++ b/esphome/components/ektf2232/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ektf2232"
diff --git a/esphome/components/emc2101/__init__.py b/esphome/components/emc2101/__init__.py
index 6cd122fb96..024ff3c893 100644
--- a/esphome/components/emc2101/__init__.py
+++ b/esphome/components/emc2101/__init__.py
@@ -6,6 +6,7 @@ from esphome.const import CONF_ID, CONF_INVERTED, CONF_RESOLUTION
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@ellull"]
+DOMAIN = "emc2101"
 
 DEPENDENCIES = ["i2c"]
 
diff --git a/esphome/components/emmeti/__init__.py b/esphome/components/emmeti/__init__.py
index e69de29bb2..ec6d2835b0 100644
--- a/esphome/components/emmeti/__init__.py
+++ b/esphome/components/emmeti/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "emmeti"
diff --git a/esphome/components/endstop/__init__.py b/esphome/components/endstop/__init__.py
index e69de29bb2..c064448409 100644
--- a/esphome/components/endstop/__init__.py
+++ b/esphome/components/endstop/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "endstop"
diff --git a/esphome/components/ens160/__init__.py b/esphome/components/ens160/__init__.py
index e69de29bb2..e59458427d 100644
--- a/esphome/components/ens160/__init__.py
+++ b/esphome/components/ens160/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ens160"
diff --git a/esphome/components/ens160_base/__init__.py b/esphome/components/ens160_base/__init__.py
index 6da0d10af9..b41575c717 100644
--- a/esphome/components/ens160_base/__init__.py
+++ b/esphome/components/ens160_base/__init__.py
@@ -22,6 +22,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@vincentscode", "@latonita"]
+DOMAIN = "ens160_base"
 
 ens160_ns = cg.esphome_ns.namespace("ens160_base")
 
diff --git a/esphome/components/ens160_i2c/__init__.py b/esphome/components/ens160_i2c/__init__.py
index e69de29bb2..605acf0f53 100644
--- a/esphome/components/ens160_i2c/__init__.py
+++ b/esphome/components/ens160_i2c/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ens160_i2c"
diff --git a/esphome/components/ens160_spi/__init__.py b/esphome/components/ens160_spi/__init__.py
index e69de29bb2..88ad91e632 100644
--- a/esphome/components/ens160_spi/__init__.py
+++ b/esphome/components/ens160_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ens160_spi"
diff --git a/esphome/components/ens210/__init__.py b/esphome/components/ens210/__init__.py
index e69de29bb2..58f5d4f25f 100644
--- a/esphome/components/ens210/__init__.py
+++ b/esphome/components/ens210/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ens210"
diff --git a/esphome/components/epaper_spi/__init__.py b/esphome/components/epaper_spi/__init__.py
index f70ffa9520..da3685c263 100644
--- a/esphome/components/epaper_spi/__init__.py
+++ b/esphome/components/epaper_spi/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "epaper_spi"
diff --git a/esphome/components/es7210/__init__.py b/esphome/components/es7210/__init__.py
index e69de29bb2..0038d29040 100644
--- a/esphome/components/es7210/__init__.py
+++ b/esphome/components/es7210/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "es7210"
diff --git a/esphome/components/es7243e/__init__.py b/esphome/components/es7243e/__init__.py
index e69de29bb2..6968b84c93 100644
--- a/esphome/components/es7243e/__init__.py
+++ b/esphome/components/es7243e/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "es7243e"
diff --git a/esphome/components/es8156/__init__.py b/esphome/components/es8156/__init__.py
index e69de29bb2..f1e7f4d4e7 100644
--- a/esphome/components/es8156/__init__.py
+++ b/esphome/components/es8156/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "es8156"
diff --git a/esphome/components/es8311/__init__.py b/esphome/components/es8311/__init__.py
index e69de29bb2..975291c4a7 100644
--- a/esphome/components/es8311/__init__.py
+++ b/esphome/components/es8311/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "es8311"
diff --git a/esphome/components/es8388/__init__.py b/esphome/components/es8388/__init__.py
index e69de29bb2..e8e2e361ba 100644
--- a/esphome/components/es8388/__init__.py
+++ b/esphome/components/es8388/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "es8388"
diff --git a/esphome/components/esp32/__init__.py b/esphome/components/esp32/__init__.py
index c825deaefd..bb6333956e 100644
--- a/esphome/components/esp32/__init__.py
+++ b/esphome/components/esp32/__init__.py
@@ -106,6 +106,7 @@ from .gpio import esp32_pin_to_code  # noqa: F401
 _LOGGER = logging.getLogger(__name__)
 AUTO_LOAD = ["preferences"]
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "esp32"
 IS_TARGET_PLATFORM = True
 
 CONF_ASSERTION_LEVEL = "assertion_level"
diff --git a/esphome/components/esp32_ble_beacon/__init__.py b/esphome/components/esp32_ble_beacon/__init__.py
index e9c44284e4..7498228f4c 100644
--- a/esphome/components/esp32_ble_beacon/__init__.py
+++ b/esphome/components/esp32_ble_beacon/__init__.py
@@ -9,6 +9,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["esp32_ble"]
 DEPENDENCIES = ["esp32"]
+DOMAIN = "esp32_ble_beacon"
 
 esp32_ble_beacon_ns = cg.esphome_ns.namespace("esp32_ble_beacon")
 ESP32BLEBeacon = esp32_ble_beacon_ns.class_("ESP32BLEBeacon", cg.Component)
diff --git a/esphome/components/esp32_ble_client/__init__.py b/esphome/components/esp32_ble_client/__init__.py
index 55619f1fc0..dbb409b17e 100644
--- a/esphome/components/esp32_ble_client/__init__.py
+++ b/esphome/components/esp32_ble_client/__init__.py
@@ -4,6 +4,7 @@ from esphome.components import esp32_ble_tracker
 AUTO_LOAD = ["esp32_ble_tracker"]
 CODEOWNERS = ["@jesserockz", "@bdraco"]
 DEPENDENCIES = ["esp32"]
+DOMAIN = "esp32_ble_client"
 
 esp32_ble_client_ns = cg.esphome_ns.namespace("esp32_ble_client")
 BLEClientBase = esp32_ble_client_ns.class_(
diff --git a/esphome/components/esp32_camera/__init__.py b/esphome/components/esp32_camera/__init__.py
index 3c41d22903..2d4e1ed7e9 100644
--- a/esphome/components/esp32_camera/__init__.py
+++ b/esphome/components/esp32_camera/__init__.py
@@ -33,6 +33,7 @@ _LOGGER = logging.getLogger(__name__)
 
 AUTO_LOAD = ["camera"]
 DEPENDENCIES = ["esp32"]
+DOMAIN = "esp32_camera"
 
 esp32_camera_ns = cg.esphome_ns.namespace("esp32_camera")
 ESP32Camera = esp32_camera_ns.class_("ESP32Camera", cg.PollingComponent, cg.EntityBase)
diff --git a/esphome/components/esp32_camera_web_server/__init__.py b/esphome/components/esp32_camera_web_server/__init__.py
index d54d5c6937..c063eb88be 100644
--- a/esphome/components/esp32_camera_web_server/__init__.py
+++ b/esphome/components/esp32_camera_web_server/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@ayufan"]
 AUTO_LOAD = ["camera"]
 DEPENDENCIES = ["network"]
+DOMAIN = "esp32_camera_web_server"
 MULTI_CONF = True
 
 esp32_camera_web_server_ns = cg.esphome_ns.namespace("esp32_camera_web_server")
diff --git a/esphome/components/esp32_can/__init__.py b/esphome/components/esp32_can/__init__.py
index e69de29bb2..eb2b5b2aaa 100644
--- a/esphome/components/esp32_can/__init__.py
+++ b/esphome/components/esp32_can/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "esp32_can"
diff --git a/esphome/components/esp32_dac/__init__.py b/esphome/components/esp32_dac/__init__.py
index e69de29bb2..6aa72c6456 100644
--- a/esphome/components/esp32_dac/__init__.py
+++ b/esphome/components/esp32_dac/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "esp32_dac"
diff --git a/esphome/components/esp32_hall/__init__.py b/esphome/components/esp32_hall/__init__.py
index e69de29bb2..a8e97842ae 100644
--- a/esphome/components/esp32_hall/__init__.py
+++ b/esphome/components/esp32_hall/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "esp32_hall"
diff --git a/esphome/components/esp32_hosted/__init__.py b/esphome/components/esp32_hosted/__init__.py
index d78941ea4c..f84f9c6464 100644
--- a/esphome/components/esp32_hosted/__init__.py
+++ b/esphome/components/esp32_hosted/__init__.py
@@ -28,6 +28,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@swoboda1337"]
 DEPENDENCIES = ["esp32"]
+DOMAIN = "esp32_hosted"
 # esp32_ble raises the task watchdog around the remote BT controller bring-up
 AUTO_LOAD = ["watchdog"]
 
diff --git a/esphome/components/esp32_rmt/__init__.py b/esphome/components/esp32_rmt/__init__.py
index a213a78778..9d3562ed7b 100644
--- a/esphome/components/esp32_rmt/__init__.py
+++ b/esphome/components/esp32_rmt/__init__.py
@@ -7,6 +7,7 @@ from esphome.core import CORE
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@jesserockz"]
+DOMAIN = "esp32_rmt"
 
 VARIANTS_NO_RMT = {esp32.VARIANT_ESP32C2, esp32.VARIANT_ESP32C61}
 
diff --git a/esphome/components/esp32_rmt_led_strip/__init__.py b/esphome/components/esp32_rmt_led_strip/__init__.py
index e69de29bb2..a33110a7d3 100644
--- a/esphome/components/esp32_rmt_led_strip/__init__.py
+++ b/esphome/components/esp32_rmt_led_strip/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "esp32_rmt_led_strip"
diff --git a/esphome/components/esp32_touch/__init__.py b/esphome/components/esp32_touch/__init__.py
index ede6beb9b6..bdd16bc2ef 100644
--- a/esphome/components/esp32_touch/__init__.py
+++ b/esphome/components/esp32_touch/__init__.py
@@ -31,6 +31,7 @@ _LOGGER = logging.getLogger(__name__)
 
 AUTO_LOAD = ["binary_sensor"]
 DEPENDENCIES = ["esp32"]
+DOMAIN = "esp32_touch"
 
 CONF_DEBOUNCE_COUNT = "debounce_count"
 CONF_DENOISE_GRADE = "denoise_grade"
diff --git a/esphome/components/esp8266/__init__.py b/esphome/components/esp8266/__init__.py
index 57fac2dc98..d975d08f25 100644
--- a/esphome/components/esp8266/__init__.py
+++ b/esphome/components/esp8266/__init__.py
@@ -71,6 +71,7 @@ CONF_ENABLE_SCANF_FLOAT = "enable_scanf_float"
 _SCANF_FLOAT_RE = re.compile(r"scanf\s*\([^;]*?%[*\d.]*[hlL]*[feEgGaAF]")
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "esp8266"
 _LOGGER = logging.getLogger(__name__)
 AUTO_LOAD = ["preferences"]
 IS_TARGET_PLATFORM = True
diff --git a/esphome/components/esp8266_pwm/__init__.py b/esphome/components/esp8266_pwm/__init__.py
index e69de29bb2..741b06bb8b 100644
--- a/esphome/components/esp8266_pwm/__init__.py
+++ b/esphome/components/esp8266_pwm/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "esp8266_pwm"
diff --git a/esphome/components/esphome/__init__.py b/esphome/components/esphome/__init__.py
new file mode 100644
index 0000000000..8bcc59dd2d
--- /dev/null
+++ b/esphome/components/esphome/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "esphome"
diff --git a/esphome/components/espnow/__init__.py b/esphome/components/espnow/__init__.py
index dc36885f2d..b69bc4e347 100644
--- a/esphome/components/espnow/__init__.py
+++ b/esphome/components/espnow/__init__.py
@@ -23,6 +23,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@jesserockz"]
 AUTO_LOAD = ["network"]
+DOMAIN = "espnow"
 
 peer_address_t = cg.std_ns.class_("array").template(cg.uint8, 6)
 
diff --git a/esphome/components/ethernet/__init__.py b/esphome/components/ethernet/__init__.py
index ff05caca83..9e12ca3e6e 100644
--- a/esphome/components/ethernet/__init__.py
+++ b/esphome/components/ethernet/__init__.py
@@ -61,6 +61,7 @@ import esphome.final_validate as fv
 from esphome.types import ConfigType
 
 AUTO_LOAD = ["network"]
+DOMAIN = "ethernet"
 LOGGER = logging.getLogger(__name__)
 
 # Key for tracking IP state listener count in CORE.data
diff --git a/esphome/components/ethernet_info/__init__.py b/esphome/components/ethernet_info/__init__.py
index 312688d3fd..3f72edbc7d 100644
--- a/esphome/components/ethernet_info/__init__.py
+++ b/esphome/components/ethernet_info/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@gtjadsonsantos"]
+DOMAIN = "ethernet_info"
diff --git a/esphome/components/event/__init__.py b/esphome/components/event/__init__.py
index d02863b9ee..c40130634f 100644
--- a/esphome/components/event/__init__.py
+++ b/esphome/components/event/__init__.py
@@ -27,6 +27,7 @@ from esphome.cpp_generator import MockObj, MockObjClass
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@nohat"]
+DOMAIN = "event"
 IS_PLATFORM_COMPONENT = True
 
 DEVICE_CLASSES = [
diff --git a/esphome/components/exponential_moving_average/__init__.py b/esphome/components/exponential_moving_average/__init__.py
index c58ce8a01e..7a389785e7 100644
--- a/esphome/components/exponential_moving_average/__init__.py
+++ b/esphome/components/exponential_moving_average/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "exponential_moving_average"
diff --git a/esphome/components/exposure_notifications/__init__.py b/esphome/components/exposure_notifications/__init__.py
index 4f7e698e23..adcfa83717 100644
--- a/esphome/components/exposure_notifications/__init__.py
+++ b/esphome/components/exposure_notifications/__init__.py
@@ -10,6 +10,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@OttoWinter"]
 AUTO_LOAD = ["ble_device_base"]
+DOMAIN = "exposure_notifications"
 
 exposure_notifications_ns = cg.esphome_ns.namespace("exposure_notifications")
 ExposureNotification = exposure_notifications_ns.struct("ExposureNotification")
diff --git a/esphome/components/external_components/__init__.py b/esphome/components/external_components/__init__.py
index 504b1ae679..8994805432 100644
--- a/esphome/components/external_components/__init__.py
+++ b/esphome/components/external_components/__init__.py
@@ -6,7 +6,6 @@ from esphome import git, loader
 import esphome.config_validation as cv
 from esphome.const import (
     CONF_COMPONENTS,
-    CONF_EXTERNAL_COMPONENTS,
     CONF_PASSWORD,
     CONF_PATH,
     CONF_REF,
@@ -22,7 +21,7 @@ from esphome.core import CORE, TimePeriodSeconds
 
 _LOGGER = logging.getLogger(__name__)
 
-DOMAIN = CONF_EXTERNAL_COMPONENTS
+DOMAIN = "external_components"
 
 
 CONFIG_SCHEMA = cv.ensure_list(
diff --git a/esphome/components/ezo/__init__.py b/esphome/components/ezo/__init__.py
index e69de29bb2..60408a40ee 100644
--- a/esphome/components/ezo/__init__.py
+++ b/esphome/components/ezo/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ezo"
diff --git a/esphome/components/ezo_pmp/__init__.py b/esphome/components/ezo_pmp/__init__.py
index 1157ef1fb0..aed071e8cf 100644
--- a/esphome/components/ezo_pmp/__init__.py
+++ b/esphome/components/ezo_pmp/__init__.py
@@ -13,6 +13,7 @@ from esphome.const import (
 
 CODEOWNERS = ["@carlos-sarmiento"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "ezo_pmp"
 MULTI_CONF = True
 
 CONF_VOLUME_PER_MINUTE = "volume_per_minute"
diff --git a/esphome/components/factory_reset/__init__.py b/esphome/components/factory_reset/__init__.py
index a9064eb18f..e2376c217c 100644
--- a/esphome/components/factory_reset/__init__.py
+++ b/esphome/components/factory_reset/__init__.py
@@ -15,6 +15,7 @@ from esphome.final_validate import full_config
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@anatoly-savchenkov"]
+DOMAIN = "factory_reset"
 
 factory_reset_ns = cg.esphome_ns.namespace("factory_reset")
 FactoryResetComponent = factory_reset_ns.class_("FactoryResetComponent", cg.Component)
diff --git a/esphome/components/fan/__init__.py b/esphome/components/fan/__init__.py
index 526499fe07..ac5469fc42 100644
--- a/esphome/components/fan/__init__.py
+++ b/esphome/components/fan/__init__.py
@@ -38,6 +38,7 @@ from esphome.core.entity_helpers import (
     setup_entity,
 )
 
+DOMAIN = "fan"
 IS_PLATFORM_COMPONENT = True
 
 fan_ns = cg.esphome_ns.namespace("fan")
diff --git a/esphome/components/fastled_base/__init__.py b/esphome/components/fastled_base/__init__.py
index e2fc8578cd..8936627aaa 100644
--- a/esphome/components/fastled_base/__init__.py
+++ b/esphome/components/fastled_base/__init__.py
@@ -12,6 +12,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@OttoWinter"]
+DOMAIN = "fastled_base"
 fastled_base_ns = cg.esphome_ns.namespace("fastled_base")
 FastLEDLightOutput = fastled_base_ns.class_(
     "FastLEDLightOutput", light.AddressableLight
diff --git a/esphome/components/fastled_clockless/__init__.py b/esphome/components/fastled_clockless/__init__.py
index e69de29bb2..05af618c2e 100644
--- a/esphome/components/fastled_clockless/__init__.py
+++ b/esphome/components/fastled_clockless/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "fastled_clockless"
diff --git a/esphome/components/fastled_spi/__init__.py b/esphome/components/fastled_spi/__init__.py
index e69de29bb2..26451add65 100644
--- a/esphome/components/fastled_spi/__init__.py
+++ b/esphome/components/fastled_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "fastled_spi"
diff --git a/esphome/components/feedback/__init__.py b/esphome/components/feedback/__init__.py
index 9ae2df986d..cfac77e797 100644
--- a/esphome/components/feedback/__init__.py
+++ b/esphome/components/feedback/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@ianchi"]
+DOMAIN = "feedback"
diff --git a/esphome/components/file/__init__.py b/esphome/components/file/__init__.py
index f70ffa9520..e98751dac5 100644
--- a/esphome/components/file/__init__.py
+++ b/esphome/components/file/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "file"
diff --git a/esphome/components/fingerprint_grow/__init__.py b/esphome/components/fingerprint_grow/__init__.py
index 0266a9caad..0e522ced25 100644
--- a/esphome/components/fingerprint_grow/__init__.py
+++ b/esphome/components/fingerprint_grow/__init__.py
@@ -26,6 +26,7 @@ from esphome.const import (
 CODEOWNERS = ["@OnFreund", "@loongyh", "@alexborro"]
 DEPENDENCIES = ["uart"]
 AUTO_LOAD = ["binary_sensor", "sensor"]
+DOMAIN = "fingerprint_grow"
 MULTI_CONF = True
 
 CONF_FINGERPRINT_GROW_ID = "fingerprint_grow_id"
diff --git a/esphome/components/fs3000/__init__.py b/esphome/components/fs3000/__init__.py
index e69de29bb2..c1a6b39d9b 100644
--- a/esphome/components/fs3000/__init__.py
+++ b/esphome/components/fs3000/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "fs3000"
diff --git a/esphome/components/ft5x06/__init__.py b/esphome/components/ft5x06/__init__.py
index dceea71dd0..9770f30e43 100644
--- a/esphome/components/ft5x06/__init__.py
+++ b/esphome/components/ft5x06/__init__.py
@@ -2,5 +2,6 @@ import esphome.codegen as cg
 
 CODEOWNERS = ["@clydebarrow"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "ft5x06"
 
 ft5x06_ns = cg.esphome_ns.namespace("ft5x06")
diff --git a/esphome/components/ft63x6/__init__.py b/esphome/components/ft63x6/__init__.py
index b6d7d3580e..565da54fe1 100644
--- a/esphome/components/ft63x6/__init__.py
+++ b/esphome/components/ft63x6/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@gpambrozio"]
+DOMAIN = "ft63x6"
diff --git a/esphome/components/fujitsu_general/__init__.py b/esphome/components/fujitsu_general/__init__.py
index e69de29bb2..fdb21576be 100644
--- a/esphome/components/fujitsu_general/__init__.py
+++ b/esphome/components/fujitsu_general/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "fujitsu_general"
diff --git a/esphome/components/gcja5/__init__.py b/esphome/components/gcja5/__init__.py
index 122ffaf6ed..9df2024e2a 100644
--- a/esphome/components/gcja5/__init__.py
+++ b/esphome/components/gcja5/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@gcormier"]
+DOMAIN = "gcja5"
diff --git a/esphome/components/gdk101/__init__.py b/esphome/components/gdk101/__init__.py
index f98af3f863..e0ede6136d 100644
--- a/esphome/components/gdk101/__init__.py
+++ b/esphome/components/gdk101/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@Szewcson"]
+DOMAIN = "gdk101"
 
 DEPENDENCIES = ["i2c"]
 MULTI_CONF = True
diff --git a/esphome/components/gl_r01_i2c/__init__.py b/esphome/components/gl_r01_i2c/__init__.py
index e69de29bb2..23c5e19b18 100644
--- a/esphome/components/gl_r01_i2c/__init__.py
+++ b/esphome/components/gl_r01_i2c/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "gl_r01_i2c"
diff --git a/esphome/components/globals/__init__.py b/esphome/components/globals/__init__.py
index 8adf4e983c..a35e228045 100644
--- a/esphome/components/globals/__init__.py
+++ b/esphome/components/globals/__init__.py
@@ -12,6 +12,7 @@ from esphome.core import CoroPriority, coroutine_with_priority
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "globals"
 globals_ns = cg.esphome_ns.namespace("globals")
 GlobalsComponent = globals_ns.class_("GlobalsComponent", cg.Component)
 RestoringGlobalsComponent = globals_ns.class_(
diff --git a/esphome/components/gp2y1010au0f/__init__.py b/esphome/components/gp2y1010au0f/__init__.py
index e69de29bb2..36c643103c 100644
--- a/esphome/components/gp2y1010au0f/__init__.py
+++ b/esphome/components/gp2y1010au0f/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "gp2y1010au0f"
diff --git a/esphome/components/gp8403/__init__.py b/esphome/components/gp8403/__init__.py
index 17c88b6875..583b1d1568 100644
--- a/esphome/components/gp8403/__init__.py
+++ b/esphome/components/gp8403/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@jesserockz", "@sebydocky"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "gp8403"
 MULTI_CONF = True
 
 gp8403_ns = cg.esphome_ns.namespace("gp8403")
diff --git a/esphome/components/gpio/__init__.py b/esphome/components/gpio/__init__.py
index 07ebb64cd2..e529b2276d 100644
--- a/esphome/components/gpio/__init__.py
+++ b/esphome/components/gpio/__init__.py
@@ -1,4 +1,5 @@
 import esphome.codegen as cg
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "gpio"
 gpio_ns = cg.esphome_ns.namespace("gpio")
diff --git a/esphome/components/gpio_expander/__init__.py b/esphome/components/gpio_expander/__init__.py
index 0c7199b6df..cf6be6e8e0 100644
--- a/esphome/components/gpio_expander/__init__.py
+++ b/esphome/components/gpio_expander/__init__.py
@@ -3,6 +3,8 @@ import esphome.config_validation as cv
 from esphome.const import CONF_ALLOW_OTHER_USES, CONF_INTERRUPT_PIN, CONF_INVERTED
 from esphome.types import ConfigType
 
+DOMAIN = "gpio_expander"
+
 
 def validate_interrupt_pin(value: ConfigType) -> ConfigType:
     # The expander components own INT polarity (active-low, hardcoded falling-edge ISR)
diff --git a/esphome/components/gps/__init__.py b/esphome/components/gps/__init__.py
index 94a36a0afa..cc77dff496 100644
--- a/esphome/components/gps/__init__.py
+++ b/esphome/components/gps/__init__.py
@@ -33,6 +33,7 @@ DEPENDENCIES = ["uart"]
 AUTO_LOAD = ["sensor"]
 
 CODEOWNERS = ["@coogle", "@ximex"]
+DOMAIN = "gps"
 
 gps_ns = cg.esphome_ns.namespace("gps")
 GPS = gps_ns.class_("GPS", cg.PollingComponent, uart.UARTDevice)
diff --git a/esphome/components/graph/__init__.py b/esphome/components/graph/__init__.py
index 1b99491f9c..0aee597334 100644
--- a/esphome/components/graph/__init__.py
+++ b/esphome/components/graph/__init__.py
@@ -32,6 +32,7 @@ from esphome.const import (
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@synco"]
+DOMAIN = "graph"
 
 DEPENDENCIES = ["display", "sensor"]
 MULTI_CONF = True
diff --git a/esphome/components/graphical_display_menu/__init__.py b/esphome/components/graphical_display_menu/__init__.py
index 668a0d74d1..59e8f66c50 100644
--- a/esphome/components/graphical_display_menu/__init__.py
+++ b/esphome/components/graphical_display_menu/__init__.py
@@ -34,6 +34,7 @@ GraphicalDisplayMenuOnRedrawTrigger = graphical_display_menu_ns.class_(
 )
 
 CODEOWNERS = ["@MrMDavidson"]
+DOMAIN = "graphical_display_menu"
 
 AUTO_LOAD = ["display_menu_base"]
 
diff --git a/esphome/components/gree/__init__.py b/esphome/components/gree/__init__.py
index 2dd9ac0f1c..67489b3876 100644
--- a/esphome/components/gree/__init__.py
+++ b/esphome/components/gree/__init__.py
@@ -1,3 +1,5 @@
 import esphome.codegen as cg
 
+DOMAIN = "gree"
+
 gree_ns = cg.esphome_ns.namespace("gree")
diff --git a/esphome/components/grove_gas_mc_v2/__init__.py b/esphome/components/grove_gas_mc_v2/__init__.py
index e69de29bb2..31a956ac6f 100644
--- a/esphome/components/grove_gas_mc_v2/__init__.py
+++ b/esphome/components/grove_gas_mc_v2/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "grove_gas_mc_v2"
diff --git a/esphome/components/grove_tb6612fng/__init__.py b/esphome/components/grove_tb6612fng/__init__.py
index 2d44d88323..0874613c5c 100644
--- a/esphome/components/grove_tb6612fng/__init__.py
+++ b/esphome/components/grove_tb6612fng/__init__.py
@@ -13,6 +13,7 @@ from esphome.const import (
 DEPENDENCIES = ["i2c"]
 
 CODEOWNERS = ["@max246"]
+DOMAIN = "grove_tb6612fng"
 
 MULTI_CONF = True
 
diff --git a/esphome/components/growatt_solar/__init__.py b/esphome/components/growatt_solar/__init__.py
index e69de29bb2..078e836783 100644
--- a/esphome/components/growatt_solar/__init__.py
+++ b/esphome/components/growatt_solar/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "growatt_solar"
diff --git a/esphome/components/gsl3670/__init__.py b/esphome/components/gsl3670/__init__.py
index c58ce8a01e..24d19ee887 100644
--- a/esphome/components/gsl3670/__init__.py
+++ b/esphome/components/gsl3670/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "gsl3670"
diff --git a/esphome/components/gt911/__init__.py b/esphome/components/gt911/__init__.py
index 1f7ecd1d5e..2b45ba5efe 100644
--- a/esphome/components/gt911/__init__.py
+++ b/esphome/components/gt911/__init__.py
@@ -2,5 +2,6 @@ import esphome.codegen as cg
 
 CODEOWNERS = ["@jesserockz", "@clydebarrow"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "gt911"
 
 gt911_ns = cg.esphome_ns.namespace("gt911")
diff --git a/esphome/components/haier/__init__.py b/esphome/components/haier/__init__.py
index e69de29bb2..605d315185 100644
--- a/esphome/components/haier/__init__.py
+++ b/esphome/components/haier/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "haier"
diff --git a/esphome/components/havells_solar/__init__.py b/esphome/components/havells_solar/__init__.py
index e69de29bb2..f6fa38817c 100644
--- a/esphome/components/havells_solar/__init__.py
+++ b/esphome/components/havells_solar/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "havells_solar"
diff --git a/esphome/components/hbridge/__init__.py b/esphome/components/hbridge/__init__.py
index 7eae863ff5..bbf8313de0 100644
--- a/esphome/components/hbridge/__init__.py
+++ b/esphome/components/hbridge/__init__.py
@@ -1,3 +1,5 @@
 import esphome.codegen as cg
 
+DOMAIN = "hbridge"
+
 hbridge_ns = cg.esphome_ns.namespace("hbridge")
diff --git a/esphome/components/hc8/__init__.py b/esphome/components/hc8/__init__.py
index e1028456b0..bbcfae894a 100644
--- a/esphome/components/hc8/__init__.py
+++ b/esphome/components/hc8/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@omartijn"]
+DOMAIN = "hc8"
diff --git a/esphome/components/hdc1080/__init__.py b/esphome/components/hdc1080/__init__.py
index e69de29bb2..7c1f276f3d 100644
--- a/esphome/components/hdc1080/__init__.py
+++ b/esphome/components/hdc1080/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "hdc1080"
diff --git a/esphome/components/hdc2010/__init__.py b/esphome/components/hdc2010/__init__.py
index badf9dbb0c..839dc630b2 100644
--- a/esphome/components/hdc2010/__init__.py
+++ b/esphome/components/hdc2010/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@optimusprimespace", "@ssieb"]
+DOMAIN = "hdc2010"
diff --git a/esphome/components/hdc2080/__init__.py b/esphome/components/hdc2080/__init__.py
index 341ea61048..e1ab22cc41 100644
--- a/esphome/components/hdc2080/__init__.py
+++ b/esphome/components/hdc2080/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@G-Pereira", "@jesserockz"]
+DOMAIN = "hdc2080"
diff --git a/esphome/components/hdc302x/__init__.py b/esphome/components/hdc302x/__init__.py
index d8165281bf..2fbfb0191c 100644
--- a/esphome/components/hdc302x/__init__.py
+++ b/esphome/components/hdc302x/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@joshuasing"]
+DOMAIN = "hdc302x"
diff --git a/esphome/components/he60r/__init__.py b/esphome/components/he60r/__init__.py
index c58ce8a01e..070ba595a3 100644
--- a/esphome/components/he60r/__init__.py
+++ b/esphome/components/he60r/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "he60r"
diff --git a/esphome/components/heatpumpir/__init__.py b/esphome/components/heatpumpir/__init__.py
index e69de29bb2..f0ef79b895 100644
--- a/esphome/components/heatpumpir/__init__.py
+++ b/esphome/components/heatpumpir/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "heatpumpir"
diff --git a/esphome/components/hitachi_ac344/__init__.py b/esphome/components/hitachi_ac344/__init__.py
index e69de29bb2..15dac43260 100644
--- a/esphome/components/hitachi_ac344/__init__.py
+++ b/esphome/components/hitachi_ac344/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "hitachi_ac344"
diff --git a/esphome/components/hitachi_ac424/__init__.py b/esphome/components/hitachi_ac424/__init__.py
index 10f2c27fe8..8372b84c7e 100644
--- a/esphome/components/hitachi_ac424/__init__.py
+++ b/esphome/components/hitachi_ac424/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@sourabhjaiswal"]
+DOMAIN = "hitachi_ac424"
diff --git a/esphome/components/hlk_fm22x/__init__.py b/esphome/components/hlk_fm22x/__init__.py
index b8040e5579..72d3cc2ada 100644
--- a/esphome/components/hlk_fm22x/__init__.py
+++ b/esphome/components/hlk_fm22x/__init__.py
@@ -13,6 +13,7 @@ from esphome.const import (
 CODEOWNERS = ["@OnFreund"]
 DEPENDENCIES = ["uart"]
 AUTO_LOAD = ["binary_sensor", "sensor", "text_sensor"]
+DOMAIN = "hlk_fm22x"
 MULTI_CONF = True
 
 CONF_HLK_FM22X_ID = "hlk_fm22x_id"
diff --git a/esphome/components/hlw8012/__init__.py b/esphome/components/hlw8012/__init__.py
index e69de29bb2..3da6262ce7 100644
--- a/esphome/components/hlw8012/__init__.py
+++ b/esphome/components/hlw8012/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "hlw8012"
diff --git a/esphome/components/hlw8032/__init__.py b/esphome/components/hlw8032/__init__.py
index 4908e10037..fc9c674659 100644
--- a/esphome/components/hlw8032/__init__.py
+++ b/esphome/components/hlw8032/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@rici4kubicek"]
+DOMAIN = "hlw8032"
diff --git a/esphome/components/hm3301/__init__.py b/esphome/components/hm3301/__init__.py
index e69de29bb2..eb45989270 100644
--- a/esphome/components/hm3301/__init__.py
+++ b/esphome/components/hm3301/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "hm3301"
diff --git a/esphome/components/hmac_md5/__init__.py b/esphome/components/hmac_md5/__init__.py
index e37eb9b116..72f9aa60fe 100644
--- a/esphome/components/hmac_md5/__init__.py
+++ b/esphome/components/hmac_md5/__init__.py
@@ -2,5 +2,6 @@ import esphome.config_validation as cv
 
 AUTO_LOAD = ["md5"]
 CODEOWNERS = ["@dwmw2"]
+DOMAIN = "hmac_md5"
 
 CONFIG_SCHEMA = cv.Schema({})
diff --git a/esphome/components/hmac_sha256/__init__.py b/esphome/components/hmac_sha256/__init__.py
index 158d740dc5..4f42c968a3 100644
--- a/esphome/components/hmac_sha256/__init__.py
+++ b/esphome/components/hmac_sha256/__init__.py
@@ -2,5 +2,6 @@ import esphome.config_validation as cv
 
 AUTO_LOAD = ["sha256"]
 CODEOWNERS = ["@dwmw2"]
+DOMAIN = "hmac_sha256"
 
 CONFIG_SCHEMA = cv.Schema({})
diff --git a/esphome/components/hmc5883l/__init__.py b/esphome/components/hmc5883l/__init__.py
index e69de29bb2..5326507e44 100644
--- a/esphome/components/hmc5883l/__init__.py
+++ b/esphome/components/hmc5883l/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "hmc5883l"
diff --git a/esphome/components/hoermann_hcp/__init__.py b/esphome/components/hoermann_hcp/__init__.py
index 958b495c2e..addd1b299b 100644
--- a/esphome/components/hoermann_hcp/__init__.py
+++ b/esphome/components/hoermann_hcp/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@zweckj"]
 DEPENDENCIES = ["modbus"]
+DOMAIN = "hoermann_hcp"
 MULTI_CONF = True
 
 CONF_HOERMANN_HCP_ID = "hoermann_hcp_id"
diff --git a/esphome/components/homeassistant/__init__.py b/esphome/components/homeassistant/__init__.py
index 9fead561af..3851bc3c0b 100644
--- a/esphome/components/homeassistant/__init__.py
+++ b/esphome/components/homeassistant/__init__.py
@@ -8,6 +8,7 @@ import esphome.final_validate as fv
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@OttoWinter", "@esphome/core"]
+DOMAIN = "homeassistant"
 homeassistant_ns = cg.esphome_ns.namespace("homeassistant")
 
 
diff --git a/esphome/components/honeywell_hih_i2c/__init__.py b/esphome/components/honeywell_hih_i2c/__init__.py
index 8d13fcb152..5808cb6fc8 100644
--- a/esphome/components/honeywell_hih_i2c/__init__.py
+++ b/esphome/components/honeywell_hih_i2c/__init__.py
@@ -1,3 +1,4 @@
 """Support for Honeywell HumidIcon HIH"""
 
 CODEOWNERS = ["@Benichou34"]
+DOMAIN = "honeywell_hih_i2c"
diff --git a/esphome/components/honeywellabp/__init__.py b/esphome/components/honeywellabp/__init__.py
index 03440d675d..e6e1fd8915 100644
--- a/esphome/components/honeywellabp/__init__.py
+++ b/esphome/components/honeywellabp/__init__.py
@@ -1 +1,3 @@
 """Support for Honeywell ABP"""
+
+DOMAIN = "honeywellabp"
diff --git a/esphome/components/honeywellabp2_i2c/__init__.py b/esphome/components/honeywellabp2_i2c/__init__.py
index 29a910eca9..1205355bc4 100644
--- a/esphome/components/honeywellabp2_i2c/__init__.py
+++ b/esphome/components/honeywellabp2_i2c/__init__.py
@@ -1,3 +1,4 @@
 """Support for Honeywell ABP2"""
 
 CODEOWNERS = ["@jpfaff"]
+DOMAIN = "honeywellabp2_i2c"
diff --git a/esphome/components/host/__init__.py b/esphome/components/host/__init__.py
index 16e4c81d34..d0ec6f2535 100644
--- a/esphome/components/host/__init__.py
+++ b/esphome/components/host/__init__.py
@@ -22,6 +22,7 @@ from .gpio import host_pin_to_code  # noqa: F401
 
 CODEOWNERS = ["@esphome/core", "@clydebarrow"]
 AUTO_LOAD = ["network", "preferences"]
+DOMAIN = "host"
 IS_TARGET_PLATFORM = True
 
 
diff --git a/esphome/components/hrxl_maxsonar_wr/__init__.py b/esphome/components/hrxl_maxsonar_wr/__init__.py
index e69de29bb2..2210989d9f 100644
--- a/esphome/components/hrxl_maxsonar_wr/__init__.py
+++ b/esphome/components/hrxl_maxsonar_wr/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "hrxl_maxsonar_wr"
diff --git a/esphome/components/hte501/__init__.py b/esphome/components/hte501/__init__.py
index e69de29bb2..18bffe2b22 100644
--- a/esphome/components/hte501/__init__.py
+++ b/esphome/components/hte501/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "hte501"
diff --git a/esphome/components/http_request/__init__.py b/esphome/components/http_request/__init__.py
index 5faf989686..9235971402 100644
--- a/esphome/components/http_request/__init__.py
+++ b/esphome/components/http_request/__init__.py
@@ -30,6 +30,7 @@ from esphome.types import ConfigType
 
 DEPENDENCIES = ["network"]
 AUTO_LOAD = ["json", "watchdog"]
+DOMAIN = "http_request"
 
 http_request_ns = cg.esphome_ns.namespace("http_request")
 HttpRequestComponent = http_request_ns.class_("HttpRequestComponent", cg.Component)
diff --git a/esphome/components/htu21d/__init__.py b/esphome/components/htu21d/__init__.py
index e69de29bb2..10e6e9d66b 100644
--- a/esphome/components/htu21d/__init__.py
+++ b/esphome/components/htu21d/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "htu21d"
diff --git a/esphome/components/htu31d/__init__.py b/esphome/components/htu31d/__init__.py
index 039693cb30..bc17a0d886 100644
--- a/esphome/components/htu31d/__init__.py
+++ b/esphome/components/htu31d/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@betterengineering"]
+DOMAIN = "htu31d"
diff --git a/esphome/components/hub75/__init__.py b/esphome/components/hub75/__init__.py
index cd5441f749..3ee6a86415 100644
--- a/esphome/components/hub75/__init__.py
+++ b/esphome/components/hub75/__init__.py
@@ -1,6 +1,7 @@
 from esphome.cpp_generator import MockObj
 
 CODEOWNERS = ["@stuartparmenter"]
+DOMAIN = "hub75"
 
 # Use fully-qualified namespace to avoid collision with external hub75 library's global ::hub75 namespace
 hub75_ns = MockObj("::esphome::hub75", "::")
diff --git a/esphome/components/hx711/__init__.py b/esphome/components/hx711/__init__.py
index e69de29bb2..f9402be78e 100644
--- a/esphome/components/hx711/__init__.py
+++ b/esphome/components/hx711/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "hx711"
diff --git a/esphome/components/hydreon_rgxx/__init__.py b/esphome/components/hydreon_rgxx/__init__.py
index b488bfc1b4..313ce9158c 100644
--- a/esphome/components/hydreon_rgxx/__init__.py
+++ b/esphome/components/hydreon_rgxx/__init__.py
@@ -3,6 +3,7 @@ from esphome.components import uart
 
 CODEOWNERS = ["@functionpointer"]
 DEPENDENCIES = ["uart"]
+DOMAIN = "hydreon_rgxx"
 
 hydreon_rgxx_ns = cg.esphome_ns.namespace("hydreon_rgxx")
 RGModel = hydreon_rgxx_ns.enum("RGModel")
diff --git a/esphome/components/hyt271/__init__.py b/esphome/components/hyt271/__init__.py
index 2e88d4f366..70be33a00e 100644
--- a/esphome/components/hyt271/__init__.py
+++ b/esphome/components/hyt271/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@Philippe12"]
+DOMAIN = "hyt271"
diff --git a/esphome/components/i2c/__init__.py b/esphome/components/i2c/__init__.py
index b053125446..3981f44fe1 100644
--- a/esphome/components/i2c/__init__.py
+++ b/esphome/components/i2c/__init__.py
@@ -58,6 +58,7 @@ from esphome.cpp_generator import MockObj
 import esphome.final_validate as fv
 from esphome.types import ConfigType
 
+DOMAIN = "i2c"
 LOGGER = logging.getLogger(__name__)
 CODEOWNERS = ["@esphome/core"]
 i2c_ns = cg.esphome_ns.namespace("i2c")
diff --git a/esphome/components/i2c_device/__init__.py b/esphome/components/i2c_device/__init__.py
index f890fefdb9..a118cb3f17 100644
--- a/esphome/components/i2c_device/__init__.py
+++ b/esphome/components/i2c_device/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 CODEOWNERS = ["@gabest11"]
+DOMAIN = "i2c_device"
 MULTI_CONF = True
 
 i2c_device_ns = cg.esphome_ns.namespace("i2c_device")
diff --git a/esphome/components/i2s_audio/__init__.py b/esphome/components/i2s_audio/__init__.py
index c5e82beb46..dc1d2b9593 100644
--- a/esphome/components/i2s_audio/__init__.py
+++ b/esphome/components/i2s_audio/__init__.py
@@ -27,6 +27,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@jesserockz"]
 DEPENDENCIES = ["esp32"]
+DOMAIN = "i2s_audio"
 MULTI_CONF = True
 
 CONF_PDM = "pdm"
diff --git a/esphome/components/iaqcore/__init__.py b/esphome/components/iaqcore/__init__.py
index e69de29bb2..216921250f 100644
--- a/esphome/components/iaqcore/__init__.py
+++ b/esphome/components/iaqcore/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "iaqcore"
diff --git a/esphome/components/icnt86/__init__.py b/esphome/components/icnt86/__init__.py
index 07f3b4e31c..7736bfd393 100644
--- a/esphome/components/icnt86/__init__.py
+++ b/esphome/components/icnt86/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@danepowell"]
+DOMAIN = "icnt86"
diff --git a/esphome/components/ili9341/__init__.py b/esphome/components/ili9341/__init__.py
index e69de29bb2..95ff0c3056 100644
--- a/esphome/components/ili9341/__init__.py
+++ b/esphome/components/ili9341/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ili9341"
diff --git a/esphome/components/ili9xxx/__init__.py b/esphome/components/ili9xxx/__init__.py
index 84888bbabc..2803b43915 100644
--- a/esphome/components/ili9xxx/__init__.py
+++ b/esphome/components/ili9xxx/__init__.py
@@ -1,3 +1,5 @@
+DOMAIN = "ili9xxx"
+
 DEPRECATED_COMPONENT = """
 The 'ili9xxx' component is deprecated and no new models will be added to it.
 New model PRs should target the newer and more performant 'mipi_spi' component.
diff --git a/esphome/components/improv_base/__init__.py b/esphome/components/improv_base/__init__.py
index 9b57b6561f..1acc5e6ca0 100644
--- a/esphome/components/improv_base/__init__.py
+++ b/esphome/components/improv_base/__init__.py
@@ -8,6 +8,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "improv_base"
 
 CONF_NEXT_URL = "next_url"
 
diff --git a/esphome/components/improv_ble/__init__.py b/esphome/components/improv_ble/__init__.py
index 72ac586628..06e73803f1 100644
--- a/esphome/components/improv_ble/__init__.py
+++ b/esphome/components/improv_ble/__init__.py
@@ -31,6 +31,7 @@ def AUTO_LOAD() -> list[str]:
 
 CODEOWNERS = ["@jesserockz"]
 DEPENDENCIES = ["wifi"]
+DOMAIN = "improv_ble"
 
 # Legacy top-level YAML key that routes here; esphome/loader.py and
 # esphome/config.py handle the warning and the key rename.
diff --git a/esphome/components/improv_serial/__init__.py b/esphome/components/improv_serial/__init__.py
index 0231791e9b..a944a13540 100644
--- a/esphome/components/improv_serial/__init__.py
+++ b/esphome/components/improv_serial/__init__.py
@@ -17,6 +17,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["improv_base"]
 CODEOWNERS = ["@esphome/core"]
 DEPENDENCIES = ["logger", "network"]
+DOMAIN = "improv_serial"
 
 improv_serial_ns = cg.esphome_ns.namespace("improv_serial")
 
diff --git a/esphome/components/ina219/__init__.py b/esphome/components/ina219/__init__.py
index e69de29bb2..5e9d2cef17 100644
--- a/esphome/components/ina219/__init__.py
+++ b/esphome/components/ina219/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ina219"
diff --git a/esphome/components/ina226/__init__.py b/esphome/components/ina226/__init__.py
index ca1f2caa31..9998623c82 100644
--- a/esphome/components/ina226/__init__.py
+++ b/esphome/components/ina226/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@Sergio303", "@latonita"]
+DOMAIN = "ina226"
diff --git a/esphome/components/ina260/__init__.py b/esphome/components/ina260/__init__.py
index e69de29bb2..4728ef80f8 100644
--- a/esphome/components/ina260/__init__.py
+++ b/esphome/components/ina260/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ina260"
diff --git a/esphome/components/ina2xx_base/__init__.py b/esphome/components/ina2xx_base/__init__.py
index b6cf0e38f3..7fdfd90bb6 100644
--- a/esphome/components/ina2xx_base/__init__.py
+++ b/esphome/components/ina2xx_base/__init__.py
@@ -34,6 +34,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@latonita"]
+DOMAIN = "ina2xx_base"
 
 CONF_ADC_AVERAGING = "adc_averaging"
 CONF_ADC_RANGE = "adc_range"
diff --git a/esphome/components/ina2xx_i2c/__init__.py b/esphome/components/ina2xx_i2c/__init__.py
index e69de29bb2..d6c784bad7 100644
--- a/esphome/components/ina2xx_i2c/__init__.py
+++ b/esphome/components/ina2xx_i2c/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ina2xx_i2c"
diff --git a/esphome/components/ina2xx_spi/__init__.py b/esphome/components/ina2xx_spi/__init__.py
index e69de29bb2..ae72c2d195 100644
--- a/esphome/components/ina2xx_spi/__init__.py
+++ b/esphome/components/ina2xx_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ina2xx_spi"
diff --git a/esphome/components/ina3221/__init__.py b/esphome/components/ina3221/__init__.py
index e69de29bb2..f8f491ddec 100644
--- a/esphome/components/ina3221/__init__.py
+++ b/esphome/components/ina3221/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ina3221"
diff --git a/esphome/components/infrared/__init__.py b/esphome/components/infrared/__init__.py
index 47ca5bf07f..2d3d478e58 100644
--- a/esphome/components/infrared/__init__.py
+++ b/esphome/components/infrared/__init__.py
@@ -19,6 +19,7 @@ from esphome.types import ConfigType, SafeExpType
 
 CODEOWNERS = ["@kbx81"]
 AUTO_LOAD = ["ir_rf_base"]
+DOMAIN = "infrared"
 
 IS_PLATFORM_COMPONENT = True
 
diff --git a/esphome/components/inkbird_ibsth1_mini/__init__.py b/esphome/components/inkbird_ibsth1_mini/__init__.py
index e69de29bb2..e0fbed17ca 100644
--- a/esphome/components/inkbird_ibsth1_mini/__init__.py
+++ b/esphome/components/inkbird_ibsth1_mini/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "inkbird_ibsth1_mini"
diff --git a/esphome/components/inkplate/__init__.py b/esphome/components/inkplate/__init__.py
index 1c6013793a..36740332a5 100644
--- a/esphome/components/inkplate/__init__.py
+++ b/esphome/components/inkplate/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@jesserockz", "@JosipKuci"]
+DOMAIN = "inkplate"
diff --git a/esphome/components/inkplate6/__init__.py b/esphome/components/inkplate6/__init__.py
index e69de29bb2..2b198f666b 100644
--- a/esphome/components/inkplate6/__init__.py
+++ b/esphome/components/inkplate6/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "inkplate6"
diff --git a/esphome/components/integration/__init__.py b/esphome/components/integration/__init__.py
index 71a87b6ae5..4afc7ce9e1 100644
--- a/esphome/components/integration/__init__.py
+++ b/esphome/components/integration/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@OttoWinter"]
+DOMAIN = "integration"
diff --git a/esphome/components/internal_temperature/__init__.py b/esphome/components/internal_temperature/__init__.py
index 9433ade13f..aa1671a015 100644
--- a/esphome/components/internal_temperature/__init__.py
+++ b/esphome/components/internal_temperature/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@Mat931"]
+DOMAIN = "internal_temperature"
diff --git a/esphome/components/interval/__init__.py b/esphome/components/interval/__init__.py
index 11c3e15b0d..adbe4349c6 100644
--- a/esphome/components/interval/__init__.py
+++ b/esphome/components/interval/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID, CONF_INTERVAL, CONF_STARTUP_DELAY
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "interval"
 interval_ns = cg.esphome_ns.namespace("interval")
 IntervalTrigger = interval_ns.class_(
     "IntervalTrigger", automation.Trigger.template(), cg.PollingComponent
diff --git a/esphome/components/ir_rf_base/__init__.py b/esphome/components/ir_rf_base/__init__.py
index 55536c131b..92d853b2a0 100644
--- a/esphome/components/ir_rf_base/__init__.py
+++ b/esphome/components/ir_rf_base/__init__.py
@@ -9,6 +9,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@kbx81", "@bdraco"]
 AUTO_LOAD = ["remote_base"]
+DOMAIN = "ir_rf_base"
 
 ir_rf_base_ns = cg.esphome_ns.namespace("ir_rf_base")
 IrRfEntity = ir_rf_base_ns.class_("IrRfEntity", cg.EntityBase, cg.Component)
diff --git a/esphome/components/ir_rf_proxy/__init__.py b/esphome/components/ir_rf_proxy/__init__.py
index bc4079ede7..45bce4ac6f 100644
--- a/esphome/components/ir_rf_proxy/__init__.py
+++ b/esphome/components/ir_rf_proxy/__init__.py
@@ -3,6 +3,7 @@
 import esphome.codegen as cg
 
 CODEOWNERS = ["@kbx81"]
+DOMAIN = "ir_rf_proxy"
 
 # Namespace and constants exported for infrared.py platform
 ir_rf_proxy_ns = cg.esphome_ns.namespace("ir_rf_proxy")
diff --git a/esphome/components/it8951/__init__.py b/esphome/components/it8951/__init__.py
index 7fc4ae2cd0..94bdf451d3 100644
--- a/esphome/components/it8951/__init__.py
+++ b/esphome/components/it8951/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@Passific", "@koosoli", "@limengdu"]
+DOMAIN = "it8951"
diff --git a/esphome/components/jsn_sr04t/__init__.py b/esphome/components/jsn_sr04t/__init__.py
index ef6335f316..672487d32a 100644
--- a/esphome/components/jsn_sr04t/__init__.py
+++ b/esphome/components/jsn_sr04t/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@Mafus1"]
+DOMAIN = "jsn_sr04t"
diff --git a/esphome/components/json/__init__.py b/esphome/components/json/__init__.py
index 618c56faa1..cac06a29d2 100644
--- a/esphome/components/json/__init__.py
+++ b/esphome/components/json/__init__.py
@@ -4,6 +4,7 @@ from esphome.core import CORE, CoroPriority, coroutine_with_priority
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "json"
 json_ns = cg.esphome_ns.namespace("json")
 
 CONFIG_SCHEMA = cv.All(
diff --git a/esphome/components/kalman_combinator/__init__.py b/esphome/components/kalman_combinator/__init__.py
index e69de29bb2..35782ff625 100644
--- a/esphome/components/kalman_combinator/__init__.py
+++ b/esphome/components/kalman_combinator/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "kalman_combinator"
diff --git a/esphome/components/kamstrup_kmp/__init__.py b/esphome/components/kamstrup_kmp/__init__.py
index e69de29bb2..2446761ce9 100644
--- a/esphome/components/kamstrup_kmp/__init__.py
+++ b/esphome/components/kamstrup_kmp/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "kamstrup_kmp"
diff --git a/esphome/components/key_collector/__init__.py b/esphome/components/key_collector/__init__.py
index dedd960c36..8dafb5da07 100644
--- a/esphome/components/key_collector/__init__.py
+++ b/esphome/components/key_collector/__init__.py
@@ -19,6 +19,7 @@ from esphome.cpp_generator import MockObj, literal
 from esphome.types import ConfigType, TemplateArgsType
 
 CODEOWNERS = ["@ssieb"]
+DOMAIN = "key_collector"
 
 MULTI_CONF = True
 
diff --git a/esphome/components/key_provider/__init__.py b/esphome/components/key_provider/__init__.py
index f397382ff2..3008545f40 100644
--- a/esphome/components/key_provider/__init__.py
+++ b/esphome/components/key_provider/__init__.py
@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 
 CODEOWNERS = ["@ssieb"]
+DOMAIN = "key_provider"
 
 key_provider_ns = cg.esphome_ns.namespace("key_provider")
 KeyProvider = key_provider_ns.class_("KeyProvider")
diff --git a/esphome/components/kmeteriso/__init__.py b/esphome/components/kmeteriso/__init__.py
index e69de29bb2..3316358096 100644
--- a/esphome/components/kmeteriso/__init__.py
+++ b/esphome/components/kmeteriso/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "kmeteriso"
diff --git a/esphome/components/kuntze/__init__.py b/esphome/components/kuntze/__init__.py
index e69de29bb2..34a9637a09 100644
--- a/esphome/components/kuntze/__init__.py
+++ b/esphome/components/kuntze/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "kuntze"
diff --git a/esphome/components/lc709203f/__init__.py b/esphome/components/lc709203f/__init__.py
index 3be68d174f..3076e38527 100644
--- a/esphome/components/lc709203f/__init__.py
+++ b/esphome/components/lc709203f/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@ilikecake"]
+DOMAIN = "lc709203f"
diff --git a/esphome/components/lcd_base/__init__.py b/esphome/components/lcd_base/__init__.py
index 08ec395720..58efbd4884 100644
--- a/esphome/components/lcd_base/__init__.py
+++ b/esphome/components/lcd_base/__init__.py
@@ -7,6 +7,8 @@ from esphome.const import CONF_DATA, CONF_DIMENSIONS, CONF_POSITION
 from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
+DOMAIN = "lcd_base"
+
 CONF_USER_CHARACTERS = "user_characters"
 
 lcd_base_ns = cg.esphome_ns.namespace("lcd_base")
diff --git a/esphome/components/lcd_gpio/__init__.py b/esphome/components/lcd_gpio/__init__.py
index e69de29bb2..9df8039c3b 100644
--- a/esphome/components/lcd_gpio/__init__.py
+++ b/esphome/components/lcd_gpio/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "lcd_gpio"
diff --git a/esphome/components/lcd_menu/__init__.py b/esphome/components/lcd_menu/__init__.py
index 88b8ac21d4..483a36491d 100644
--- a/esphome/components/lcd_menu/__init__.py
+++ b/esphome/components/lcd_menu/__init__.py
@@ -11,6 +11,7 @@ from esphome.core.entity_helpers import inherit_property_from
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@numo68"]
+DOMAIN = "lcd_menu"
 
 AUTO_LOAD = ["display_menu_base"]
 
diff --git a/esphome/components/lcd_pcf8574/__init__.py b/esphome/components/lcd_pcf8574/__init__.py
index e69de29bb2..cfeba4c863 100644
--- a/esphome/components/lcd_pcf8574/__init__.py
+++ b/esphome/components/lcd_pcf8574/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "lcd_pcf8574"
diff --git a/esphome/components/ld2410/__init__.py b/esphome/components/ld2410/__init__.py
index d3179d9b30..e2728aa73c 100644
--- a/esphome/components/ld2410/__init__.py
+++ b/esphome/components/ld2410/__init__.py
@@ -9,6 +9,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["ld24xx"]
 DEPENDENCIES = ["uart"]
 CODEOWNERS = ["@sebcaps", "@regevbr"]
+DOMAIN = "ld2410"
 MULTI_CONF = True
 
 ld2410_ns = cg.esphome_ns.namespace("ld2410")
diff --git a/esphome/components/ld2412/__init__.py b/esphome/components/ld2412/__init__.py
index 82db319861..fd63f78c3d 100644
--- a/esphome/components/ld2412/__init__.py
+++ b/esphome/components/ld2412/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["ld24xx"]
 CODEOWNERS = ["@Rihan9"]
 DEPENDENCIES = ["uart"]
+DOMAIN = "ld2412"
 MULTI_CONF = True
 
 LD2412_ns = cg.esphome_ns.namespace("ld2412")
diff --git a/esphome/components/ld2420/__init__.py b/esphome/components/ld2420/__init__.py
index 5a5aabeba0..87a54d278a 100644
--- a/esphome/components/ld2420/__init__.py
+++ b/esphome/components/ld2420/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@descipher"]
+DOMAIN = "ld2420"
 
 DEPENDENCIES = ["uart"]
 
diff --git a/esphome/components/ld2450/__init__.py b/esphome/components/ld2450/__init__.py
index 4c37f4fcd1..a54e83f287 100644
--- a/esphome/components/ld2450/__init__.py
+++ b/esphome/components/ld2450/__init__.py
@@ -8,6 +8,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["ld24xx"]
 DEPENDENCIES = ["uart"]
 CODEOWNERS = ["@hareeshmu"]
+DOMAIN = "ld2450"
 MULTI_CONF = True
 
 ld2450_ns = cg.esphome_ns.namespace("ld2450")
diff --git a/esphome/components/ld24xx/__init__.py b/esphome/components/ld24xx/__init__.py
index 516af84856..97ff42626c 100644
--- a/esphome/components/ld24xx/__init__.py
+++ b/esphome/components/ld24xx/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@kbx81"]
+DOMAIN = "ld24xx"
diff --git a/esphome/components/ld6002b/__init__.py b/esphome/components/ld6002b/__init__.py
index af1e501a6a..c7529f9314 100644
--- a/esphome/components/ld6002b/__init__.py
+++ b/esphome/components/ld6002b/__init__.py
@@ -9,6 +9,7 @@ from .const import CONF_AUTO_WAKE, CONF_WAKEUP_PULSE
 
 CODEOWNERS = ["@hepter"]
 DEPENDENCIES = ["uart"]
+DOMAIN = "ld6002b"
 MULTI_CONF = True
 
 ld6002b_ns = cg.esphome_ns.namespace("ld6002b")
diff --git a/esphome/components/ledc/__init__.py b/esphome/components/ledc/__init__.py
index 71a87b6ae5..cc2c4d56aa 100644
--- a/esphome/components/ledc/__init__.py
+++ b/esphome/components/ledc/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@OttoWinter"]
+DOMAIN = "ledc"
diff --git a/esphome/components/libretiny/__init__.py b/esphome/components/libretiny/__init__.py
index 5d630fec6c..5a82cce7ad 100644
--- a/esphome/components/libretiny/__init__.py
+++ b/esphome/components/libretiny/__init__.py
@@ -57,6 +57,7 @@ from .const import (
 _LOGGER = logging.getLogger(__name__)
 CODEOWNERS = ["@kuba2k2"]
 AUTO_LOAD = ["preferences"]
+DOMAIN = "libretiny"
 IS_TARGET_PLATFORM = True
 
 # BLE 5.x BK SDK options to disable unused features.
diff --git a/esphome/components/libretiny_pwm/__init__.py b/esphome/components/libretiny_pwm/__init__.py
index 4db724f8ad..1825606769 100644
--- a/esphome/components/libretiny_pwm/__init__.py
+++ b/esphome/components/libretiny_pwm/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@kuba2k2"]
+DOMAIN = "libretiny_pwm"
diff --git a/esphome/components/lightwaverf/__init__.py b/esphome/components/lightwaverf/__init__.py
index a1138c7de8..1a4234ceaf 100644
--- a/esphome/components/lightwaverf/__init__.py
+++ b/esphome/components/lightwaverf/__init__.py
@@ -15,6 +15,7 @@ from esphome.cpp_helpers import gpio_pin_expression
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@max246"]
+DOMAIN = "lightwaverf"
 
 lightwaverf_ns = cg.esphome_ns.namespace("lightwaverf")
 
diff --git a/esphome/components/lilygo_t5_47/__init__.py b/esphome/components/lilygo_t5_47/__init__.py
index 5499d096a9..cb3605c63e 100644
--- a/esphome/components/lilygo_t5_47/__init__.py
+++ b/esphome/components/lilygo_t5_47/__init__.py
@@ -1,3 +1,5 @@
 import esphome.codegen as cg
 
+DOMAIN = "lilygo_t5_47"
+
 lilygo_t5_47_ns = cg.esphome_ns.namespace("lilygo_t5_47")
diff --git a/esphome/components/lm75b/__init__.py b/esphome/components/lm75b/__init__.py
index e69de29bb2..228b24febe 100644
--- a/esphome/components/lm75b/__init__.py
+++ b/esphome/components/lm75b/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "lm75b"
diff --git a/esphome/components/ln882h_ble/__init__.py b/esphome/components/ln882h_ble/__init__.py
index aadc1f3b2f..7e382eda85 100644
--- a/esphome/components/ln882h_ble/__init__.py
+++ b/esphome/components/ln882h_ble/__init__.py
@@ -16,6 +16,7 @@ from esphome.types import ConfigType
 
 DEPENDENCIES = ["ln882x"]
 CODEOWNERS = ["@Bl00d-B0b"]
+DOMAIN = "ln882h_ble"
 
 ln882h_ble_ns = cg.esphome_ns.namespace("ln882h_ble")
 LN882HBLE = ln882h_ble_ns.class_("LN882HBLE", cg.Component)
diff --git a/esphome/components/ln882h_ble_tracker/__init__.py b/esphome/components/ln882h_ble_tracker/__init__.py
index 69a01ae1ac..0d2b3a5180 100644
--- a/esphome/components/ln882h_ble_tracker/__init__.py
+++ b/esphome/components/ln882h_ble_tracker/__init__.py
@@ -28,6 +28,7 @@ CONF_LN882H_BLE_ID = "ln882h_ble_id"
 DEPENDENCIES = ["ln882x"]
 AUTO_LOAD = ["ble_device_base", "ln882h_ble"]
 CODEOWNERS = ["@Bl00d-B0b"]
+DOMAIN = "ln882h_ble_tracker"
 
 ble_device_base.register_hub_provider("ln882h_ble_tracker")
 
diff --git a/esphome/components/ln882x/__init__.py b/esphome/components/ln882x/__init__.py
index b4e179c4a9..d23702d799 100644
--- a/esphome/components/ln882x/__init__.py
+++ b/esphome/components/ln882x/__init__.py
@@ -35,6 +35,7 @@ from .boards import LN882X_BOARD_PINS, LN882X_BOARDS
 
 CODEOWNERS = ["@lamauny"]
 AUTO_LOAD = ["libretiny"]
+DOMAIN = "ln882x"
 IS_TARGET_PLATFORM = True
 
 COMPONENT_DATA = LibreTinyComponent(
diff --git a/esphome/components/lock/__init__.py b/esphome/components/lock/__init__.py
index aa5bec98d5..cf723df9b9 100644
--- a/esphome/components/lock/__init__.py
+++ b/esphome/components/lock/__init__.py
@@ -22,6 +22,7 @@ from esphome.cpp_generator import MockObj, MockObjClass
 from esphome.types import ConfigType, SafeExpType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "lock"
 IS_PLATFORM_COMPONENT = True
 
 lock_ns = cg.esphome_ns.namespace("lock")
diff --git a/esphome/components/lps22/__init__.py b/esphome/components/lps22/__init__.py
index e69de29bb2..b9936d7ab1 100644
--- a/esphome/components/lps22/__init__.py
+++ b/esphome/components/lps22/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "lps22"
diff --git a/esphome/components/lsm6ds/__init__.py b/esphome/components/lsm6ds/__init__.py
index b1044276a1..311058249e 100644
--- a/esphome/components/lsm6ds/__init__.py
+++ b/esphome/components/lsm6ds/__init__.py
@@ -3,6 +3,7 @@ from esphome.components import i2c
 from esphome.components.motion import MotionComponent
 
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "lsm6ds"
 
 CONF_LSM6DS_ID = "lsm6ds_id"
 #  C++ namespace / class
diff --git a/esphome/components/ltr390/__init__.py b/esphome/components/ltr390/__init__.py
index e69de29bb2..3bf5ae2563 100644
--- a/esphome/components/ltr390/__init__.py
+++ b/esphome/components/ltr390/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ltr390"
diff --git a/esphome/components/ltr501/__init__.py b/esphome/components/ltr501/__init__.py
index dd06cfffea..450e38be0f 100644
--- a/esphome/components/ltr501/__init__.py
+++ b/esphome/components/ltr501/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@latonita"]
+DOMAIN = "ltr501"
diff --git a/esphome/components/ltr_als_ps/__init__.py b/esphome/components/ltr_als_ps/__init__.py
index dd06cfffea..3b6fa0d268 100644
--- a/esphome/components/ltr_als_ps/__init__.py
+++ b/esphome/components/ltr_als_ps/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@latonita"]
+DOMAIN = "ltr_als_ps"
diff --git a/esphome/components/m5stack_8angle/__init__.py b/esphome/components/m5stack_8angle/__init__.py
index 6404bcf64c..96b9782e81 100644
--- a/esphome/components/m5stack_8angle/__init__.py
+++ b/esphome/components/m5stack_8angle/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 CODEOWNERS = ["@rnauber"]
+DOMAIN = "m5stack_8angle"
 MULTI_CONF = True
 
 CONF_M5STACK_8ANGLE_ID = "m5stack_8angle_id"
diff --git a/esphome/components/matrix_keypad/__init__.py b/esphome/components/matrix_keypad/__init__.py
index f9b744daf0..8e9b21fe43 100644
--- a/esphome/components/matrix_keypad/__init__.py
+++ b/esphome/components/matrix_keypad/__init__.py
@@ -7,6 +7,7 @@ from esphome.const import CONF_ID, CONF_ON_KEY, CONF_PIN, CONF_TRIGGER_ID
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@ssieb"]
+DOMAIN = "matrix_keypad"
 
 AUTO_LOAD = ["key_provider"]
 
diff --git a/esphome/components/max17043/__init__.py b/esphome/components/max17043/__init__.py
index 1db25ccdd6..ba609881f0 100644
--- a/esphome/components/max17043/__init__.py
+++ b/esphome/components/max17043/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@blacknell"]
+DOMAIN = "max17043"
diff --git a/esphome/components/max31855/__init__.py b/esphome/components/max31855/__init__.py
index e69de29bb2..b8a76cd500 100644
--- a/esphome/components/max31855/__init__.py
+++ b/esphome/components/max31855/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "max31855"
diff --git a/esphome/components/max31856/__init__.py b/esphome/components/max31856/__init__.py
index e69de29bb2..3fde339873 100644
--- a/esphome/components/max31856/__init__.py
+++ b/esphome/components/max31856/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "max31856"
diff --git a/esphome/components/max31865/__init__.py b/esphome/components/max31865/__init__.py
index e69de29bb2..42068dc04f 100644
--- a/esphome/components/max31865/__init__.py
+++ b/esphome/components/max31865/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "max31865"
diff --git a/esphome/components/max44009/__init__.py b/esphome/components/max44009/__init__.py
index e69de29bb2..a7d755f6a6 100644
--- a/esphome/components/max44009/__init__.py
+++ b/esphome/components/max44009/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "max44009"
diff --git a/esphome/components/max6675/__init__.py b/esphome/components/max6675/__init__.py
index e69de29bb2..d00df9770d 100644
--- a/esphome/components/max6675/__init__.py
+++ b/esphome/components/max6675/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "max6675"
diff --git a/esphome/components/max6956/__init__.py b/esphome/components/max6956/__init__.py
index 05abaf886f..77e82fdec7 100644
--- a/esphome/components/max6956/__init__.py
+++ b/esphome/components/max6956/__init__.py
@@ -15,6 +15,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@looping40"]
+DOMAIN = "max6956"
 
 DEPENDENCIES = ["i2c"]
 MULTI_CONF = True
diff --git a/esphome/components/max7219/__init__.py b/esphome/components/max7219/__init__.py
index e69de29bb2..2c1a783395 100644
--- a/esphome/components/max7219/__init__.py
+++ b/esphome/components/max7219/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "max7219"
diff --git a/esphome/components/max7219digit/__init__.py b/esphome/components/max7219digit/__init__.py
index e69de29bb2..33d7ad3f80 100644
--- a/esphome/components/max7219digit/__init__.py
+++ b/esphome/components/max7219digit/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "max7219digit"
diff --git a/esphome/components/max9611/__init__.py b/esphome/components/max9611/__init__.py
index 9b0ea14b57..a3fc6ca774 100644
--- a/esphome/components/max9611/__init__.py
+++ b/esphome/components/max9611/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@mckaymatthew"]
+DOMAIN = "max9611"
diff --git a/esphome/components/mcp23008/__init__.py b/esphome/components/mcp23008/__init__.py
index 3d1480a6f7..9f1e9c9f96 100644
--- a/esphome/components/mcp23008/__init__.py
+++ b/esphome/components/mcp23008/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["mcp23x08_base"]
 CODEOWNERS = ["@jesserockz"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "mcp23008"
 MULTI_CONF = True
 
 mcp23008_ns = cg.esphome_ns.namespace("mcp23008")
diff --git a/esphome/components/mcp23016/__init__.py b/esphome/components/mcp23016/__init__.py
index aa606507f0..7dddf4b042 100644
--- a/esphome/components/mcp23016/__init__.py
+++ b/esphome/components/mcp23016/__init__.py
@@ -16,6 +16,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["gpio_expander"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "mcp23016"
 MULTI_CONF = True
 
 mcp23016_ns = cg.esphome_ns.namespace("mcp23016")
diff --git a/esphome/components/mcp23017/__init__.py b/esphome/components/mcp23017/__init__.py
index 474d75f6ff..6733f19456 100644
--- a/esphome/components/mcp23017/__init__.py
+++ b/esphome/components/mcp23017/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["mcp23x17_base"]
 CODEOWNERS = ["@jesserockz"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "mcp23017"
 MULTI_CONF = True
 
 mcp23017_ns = cg.esphome_ns.namespace("mcp23017")
diff --git a/esphome/components/mcp23s08/__init__.py b/esphome/components/mcp23s08/__init__.py
index ffc51b8146..95a396865b 100644
--- a/esphome/components/mcp23s08/__init__.py
+++ b/esphome/components/mcp23s08/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["mcp23x08_base"]
 CODEOWNERS = ["@SenexCrenshaw", "@jesserockz"]
 DEPENDENCIES = ["spi"]
+DOMAIN = "mcp23s08"
 MULTI_CONF = True
 
 CONF_DEVICEADDRESS = "deviceaddress"
diff --git a/esphome/components/mcp23s17/__init__.py b/esphome/components/mcp23s17/__init__.py
index d693a64ce8..9745b74bc0 100644
--- a/esphome/components/mcp23s17/__init__.py
+++ b/esphome/components/mcp23s17/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["mcp23x17_base"]
 CODEOWNERS = ["@SenexCrenshaw", "@jesserockz"]
 DEPENDENCIES = ["spi"]
+DOMAIN = "mcp23s17"
 MULTI_CONF = True
 
 CONF_DEVICEADDRESS = "deviceaddress"
diff --git a/esphome/components/mcp23x08_base/__init__.py b/esphome/components/mcp23x08_base/__init__.py
index a3c12165f0..d283d57bd0 100644
--- a/esphome/components/mcp23x08_base/__init__.py
+++ b/esphome/components/mcp23x08_base/__init__.py
@@ -3,6 +3,7 @@ from esphome.components import mcp23xxx_base
 
 AUTO_LOAD = ["mcp23xxx_base"]
 CODEOWNERS = ["@jesserockz"]
+DOMAIN = "mcp23x08_base"
 
 NUM_PINS = 8
 
diff --git a/esphome/components/mcp23x17_base/__init__.py b/esphome/components/mcp23x17_base/__init__.py
index 1b93d16ff3..6160987cef 100644
--- a/esphome/components/mcp23x17_base/__init__.py
+++ b/esphome/components/mcp23x17_base/__init__.py
@@ -3,6 +3,7 @@ from esphome.components import mcp23xxx_base
 
 AUTO_LOAD = ["mcp23xxx_base"]
 CODEOWNERS = ["@jesserockz"]
+DOMAIN = "mcp23x17_base"
 
 NUM_PINS = 16
 
diff --git a/esphome/components/mcp23xxx_base/__init__.py b/esphome/components/mcp23xxx_base/__init__.py
index a626835518..f7449b0ab9 100644
--- a/esphome/components/mcp23xxx_base/__init__.py
+++ b/esphome/components/mcp23xxx_base/__init__.py
@@ -20,6 +20,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["gpio_expander"]
 CODEOWNERS = ["@jesserockz"]
+DOMAIN = "mcp23xxx_base"
 
 mcp23xxx_base_ns = cg.esphome_ns.namespace("mcp23xxx_base")
 MCP23XXXBase = mcp23xxx_base_ns.class_("MCP23XXXBase", cg.Component)
diff --git a/esphome/components/mcp2515/__init__.py b/esphome/components/mcp2515/__init__.py
index e69de29bb2..5b0e72b758 100644
--- a/esphome/components/mcp2515/__init__.py
+++ b/esphome/components/mcp2515/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "mcp2515"
diff --git a/esphome/components/mcp3008/__init__.py b/esphome/components/mcp3008/__init__.py
index 6d1bd5a970..f29050f9fe 100644
--- a/esphome/components/mcp3008/__init__.py
+++ b/esphome/components/mcp3008/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 DEPENDENCIES = ["spi"]
 AUTO_LOAD = ["sensor"]
+DOMAIN = "mcp3008"
 MULTI_CONF = True
 
 CONF_MCP3008 = "mcp3008"
diff --git a/esphome/components/mcp3204/__init__.py b/esphome/components/mcp3204/__init__.py
index 5757bdbfa9..7829a07d80 100644
--- a/esphome/components/mcp3204/__init__.py
+++ b/esphome/components/mcp3204/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID, CONF_REFERENCE_VOLTAGE
 from esphome.types import ConfigType
 
 DEPENDENCIES = ["spi"]
+DOMAIN = "mcp3204"
 MULTI_CONF = True
 CODEOWNERS = ["@rsumner"]
 
diff --git a/esphome/components/mcp3221/__init__.py b/esphome/components/mcp3221/__init__.py
index 677bb78c35..8e5a7f134e 100644
--- a/esphome/components/mcp3221/__init__.py
+++ b/esphome/components/mcp3221/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@philippderdiedas"]
+DOMAIN = "mcp3221"
diff --git a/esphome/components/mcp4461/__init__.py b/esphome/components/mcp4461/__init__.py
index 60cece67d7..d5465098f2 100644
--- a/esphome/components/mcp4461/__init__.py
+++ b/esphome/components/mcp4461/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@p1ngb4ck"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "mcp4461"
 MULTI_CONF = True
 CONF_DISABLE_WIPER_0 = "disable_wiper_0"
 CONF_DISABLE_WIPER_1 = "disable_wiper_1"
diff --git a/esphome/components/mcp4725/__init__.py b/esphome/components/mcp4725/__init__.py
index e69de29bb2..d63ffaf7c3 100644
--- a/esphome/components/mcp4725/__init__.py
+++ b/esphome/components/mcp4725/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "mcp4725"
diff --git a/esphome/components/mcp4728/__init__.py b/esphome/components/mcp4728/__init__.py
index f48bdde681..7156b4aa7f 100644
--- a/esphome/components/mcp4728/__init__.py
+++ b/esphome/components/mcp4728/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@berfenger"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "mcp4728"
 MULTI_CONF = True
 CONF_STORE_IN_EEPROM = "store_in_eeprom"
 
diff --git a/esphome/components/mcp47a1/__init__.py b/esphome/components/mcp47a1/__init__.py
index e69de29bb2..274ca6fa01 100644
--- a/esphome/components/mcp47a1/__init__.py
+++ b/esphome/components/mcp47a1/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "mcp47a1"
diff --git a/esphome/components/mcp9600/__init__.py b/esphome/components/mcp9600/__init__.py
index e69de29bb2..3d85a4d937 100644
--- a/esphome/components/mcp9600/__init__.py
+++ b/esphome/components/mcp9600/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "mcp9600"
diff --git a/esphome/components/mcp9808/__init__.py b/esphome/components/mcp9808/__init__.py
index e69de29bb2..7a167ebf06 100644
--- a/esphome/components/mcp9808/__init__.py
+++ b/esphome/components/mcp9808/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "mcp9808"
diff --git a/esphome/components/md5/__init__.py b/esphome/components/md5/__init__.py
index 6a928d1682..0928766429 100644
--- a/esphome/components/md5/__init__.py
+++ b/esphome/components/md5/__init__.py
@@ -4,6 +4,7 @@ from esphome.helpers import IS_MACOS
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "md5"
 
 
 async def to_code(config: ConfigType) -> None:
diff --git a/esphome/components/mdns/__init__.py b/esphome/components/mdns/__init__.py
index 760952e269..703cdc9ab0 100644
--- a/esphome/components/mdns/__init__.py
+++ b/esphome/components/mdns/__init__.py
@@ -22,6 +22,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
 DEPENDENCIES = ["network"]
+DOMAIN = "mdns"
 
 # Components that create mDNS services at runtime
 # IMPORTANT: If you add a new component here, you must also update the corresponding
diff --git a/esphome/components/media_player/__init__.py b/esphome/components/media_player/__init__.py
index d99e7877bf..d012773d8a 100644
--- a/esphome/components/media_player/__init__.py
+++ b/esphome/components/media_player/__init__.py
@@ -29,6 +29,7 @@ from esphome.cpp_generator import MockObj, MockObjClass
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@jesserockz"]
+DOMAIN = "media_player"
 
 IS_PLATFORM_COMPONENT = True
 
diff --git a/esphome/components/media_source/__init__.py b/esphome/components/media_source/__init__.py
index c9dab7e4d2..348ea01428 100644
--- a/esphome/components/media_source/__init__.py
+++ b/esphome/components/media_source/__init__.py
@@ -7,6 +7,7 @@ from esphome.cpp_generator import MockObj, MockObjClass
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@kahrendt"]
+DOMAIN = "media_source"
 
 AUTO_LOAD = ["audio"]
 
diff --git a/esphome/components/mhz19/__init__.py b/esphome/components/mhz19/__init__.py
index e69de29bb2..1b75339b45 100644
--- a/esphome/components/mhz19/__init__.py
+++ b/esphome/components/mhz19/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "mhz19"
diff --git a/esphome/components/microphone/__init__.py b/esphome/components/microphone/__init__.py
index c604f64d77..6fa14cdd8b 100644
--- a/esphome/components/microphone/__init__.py
+++ b/esphome/components/microphone/__init__.py
@@ -21,6 +21,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["audio"]
 CODEOWNERS = ["@jesserockz", "@kahrendt"]
+DOMAIN = "microphone"
 
 IS_PLATFORM_COMPONENT = True
 
diff --git a/esphome/components/mics_4514/__init__.py b/esphome/components/mics_4514/__init__.py
index e69de29bb2..9b985504b0 100644
--- a/esphome/components/mics_4514/__init__.py
+++ b/esphome/components/mics_4514/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "mics_4514"
diff --git a/esphome/components/midea/__init__.py b/esphome/components/midea/__init__.py
index e69de29bb2..d9bb8492b3 100644
--- a/esphome/components/midea/__init__.py
+++ b/esphome/components/midea/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "midea"
diff --git a/esphome/components/midea_ac/__init__.py b/esphome/components/midea_ac/__init__.py
index e69de29bb2..dbff1a1186 100644
--- a/esphome/components/midea_ac/__init__.py
+++ b/esphome/components/midea_ac/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "midea_ac"
diff --git a/esphome/components/midea_ir/__init__.py b/esphome/components/midea_ir/__init__.py
index e69de29bb2..01f3c67f7c 100644
--- a/esphome/components/midea_ir/__init__.py
+++ b/esphome/components/midea_ir/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "midea_ir"
diff --git a/esphome/components/mipi/__init__.py b/esphome/components/mipi/__init__.py
index 526afa914b..b2351e23a4 100644
--- a/esphome/components/mipi/__init__.py
+++ b/esphome/components/mipi/__init__.py
@@ -35,6 +35,8 @@ from esphome.const import (
 from esphome.core import CORE, TimePeriod
 from esphome.schema_extractors import SCHEMA_EXTRACT, schema_extractor
 
+DOMAIN = "mipi"
+
 LOGGER = cv.logging.getLogger(__name__)
 
 CONF_TRANSFORMS = "transforms"
diff --git a/esphome/components/mipi_dsi/__init__.py b/esphome/components/mipi_dsi/__init__.py
index 84dd66e2f4..ae17e00bdc 100644
--- a/esphome/components/mipi_dsi/__init__.py
+++ b/esphome/components/mipi_dsi/__init__.py
@@ -1,5 +1,6 @@
 import esphome.codegen as cg
 
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "mipi_dsi"
 
 mipi_dsi_ns = cg.esphome_ns.namespace("mipi_dsi")
diff --git a/esphome/components/mitsubishi/__init__.py b/esphome/components/mitsubishi/__init__.py
index e69de29bb2..05ae0f0543 100644
--- a/esphome/components/mitsubishi/__init__.py
+++ b/esphome/components/mitsubishi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "mitsubishi"
diff --git a/esphome/components/mixer/__init__.py b/esphome/components/mixer/__init__.py
index e69de29bb2..5ea96da4d2 100644
--- a/esphome/components/mixer/__init__.py
+++ b/esphome/components/mixer/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "mixer"
diff --git a/esphome/components/mk2pvrouter/__init__.py b/esphome/components/mk2pvrouter/__init__.py
index d00b4ce8d0..7df1f7104f 100644
--- a/esphome/components/mk2pvrouter/__init__.py
+++ b/esphome/components/mk2pvrouter/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@FredM67"]
 DEPENDENCIES = ["uart"]
+DOMAIN = "mk2pvrouter"
 
 mk2pvrouter_ns = cg.esphome_ns.namespace("mk2pvrouter")
 Mk2PVRouter = mk2pvrouter_ns.class_("Mk2PVRouter", cg.Component, uart.UARTDevice)
diff --git a/esphome/components/mlx90393/__init__.py b/esphome/components/mlx90393/__init__.py
index fc92f02120..800d120558 100644
--- a/esphome/components/mlx90393/__init__.py
+++ b/esphome/components/mlx90393/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@functionpointer"]
+DOMAIN = "mlx90393"
diff --git a/esphome/components/mlx90614/__init__.py b/esphome/components/mlx90614/__init__.py
index e69de29bb2..e1db3524a4 100644
--- a/esphome/components/mlx90614/__init__.py
+++ b/esphome/components/mlx90614/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "mlx90614"
diff --git a/esphome/components/mmc5603/__init__.py b/esphome/components/mmc5603/__init__.py
index cc88f26231..b7008ff157 100644
--- a/esphome/components/mmc5603/__init__.py
+++ b/esphome/components/mmc5603/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@benhoff"]
+DOMAIN = "mmc5603"
diff --git a/esphome/components/mmc5983/__init__.py b/esphome/components/mmc5983/__init__.py
index c8db8c4300..5e5287db5f 100644
--- a/esphome/components/mmc5983/__init__.py
+++ b/esphome/components/mmc5983/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@agoode"]
+DOMAIN = "mmc5983"
diff --git a/esphome/components/modbus/__init__.py b/esphome/components/modbus/__init__.py
index cad2781cc1..4e4d7fe160 100644
--- a/esphome/components/modbus/__init__.py
+++ b/esphome/components/modbus/__init__.py
@@ -18,6 +18,7 @@ from esphome.types import ConfigType, TemplateArgsType
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ["uart"]
+DOMAIN = "modbus"
 # Loading the hub makes the modbus_client.* actions available (they are registry entries only; no code is
 # generated unless a config uses one).
 AUTO_LOAD = ["modbus_client"]
diff --git a/esphome/components/modbus_client/__init__.py b/esphome/components/modbus_client/__init__.py
index 66ddcd7722..5294f20f2d 100644
--- a/esphome/components/modbus_client/__init__.py
+++ b/esphome/components/modbus_client/__init__.py
@@ -18,6 +18,7 @@ from esphome.types import ConfigType, TemplateArgsType
 
 CODEOWNERS = ["@exciton"]
 DEPENDENCIES = ["modbus"]
+DOMAIN = "modbus_client"
 MULTI_CONF = True
 # The modbus hub auto-loads this component to make the actions available. Without this, that auto-load
 # would try to create a device with no address.
diff --git a/esphome/components/modbus_server/__init__.py b/esphome/components/modbus_server/__init__.py
index 0de40a4cc1..bff23e364e 100644
--- a/esphome/components/modbus_server/__init__.py
+++ b/esphome/components/modbus_server/__init__.py
@@ -23,6 +23,7 @@ from .const import (
 )
 
 CODEOWNERS = ["@exciton"]
+DOMAIN = "modbus_server"
 
 AUTO_LOAD = ["modbus"]
 
diff --git a/esphome/components/monochromatic/__init__.py b/esphome/components/monochromatic/__init__.py
index e69de29bb2..4f572e8557 100644
--- a/esphome/components/monochromatic/__init__.py
+++ b/esphome/components/monochromatic/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "monochromatic"
diff --git a/esphome/components/mopeka_ble/__init__.py b/esphome/components/mopeka_ble/__init__.py
index ec7deb3067..968447dadf 100644
--- a/esphome/components/mopeka_ble/__init__.py
+++ b/esphome/components/mopeka_ble/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@spbrogan", "@Fabian-Schmidt"]
 AUTO_LOAD = ["ble_device_base"]
+DOMAIN = "mopeka_ble"
 
 CONF_SHOW_SENSORS_WITHOUT_SYNC = "show_sensors_without_sync"
 
diff --git a/esphome/components/mopeka_pro_check/__init__.py b/esphome/components/mopeka_pro_check/__init__.py
index c57f60f521..86bf451227 100644
--- a/esphome/components/mopeka_pro_check/__init__.py
+++ b/esphome/components/mopeka_pro_check/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@spbrogan"]
+DOMAIN = "mopeka_pro_check"
diff --git a/esphome/components/mopeka_std_check/__init__.py b/esphome/components/mopeka_std_check/__init__.py
index 88e344464f..be8f3d329b 100644
--- a/esphome/components/mopeka_std_check/__init__.py
+++ b/esphome/components/mopeka_std_check/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@Fabian-Schmidt"]
+DOMAIN = "mopeka_std_check"
diff --git a/esphome/components/mpl3115a2/__init__.py b/esphome/components/mpl3115a2/__init__.py
index e69de29bb2..08956d32f6 100644
--- a/esphome/components/mpl3115a2/__init__.py
+++ b/esphome/components/mpl3115a2/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "mpl3115a2"
diff --git a/esphome/components/mpr121/__init__.py b/esphome/components/mpr121/__init__.py
index da56b4ff4b..1764ff9c05 100644
--- a/esphome/components/mpr121/__init__.py
+++ b/esphome/components/mpr121/__init__.py
@@ -25,6 +25,7 @@ CONF_MPR121 = "mpr121"
 CONF_MPR121_ID = "mpr121_id"
 
 DEPENDENCIES = ["i2c"]
+DOMAIN = "mpr121"
 
 mpr121_ns = cg.esphome_ns.namespace("mpr121")
 MPR121Component = mpr121_ns.class_("MPR121Component", cg.Component, i2c.I2CDevice)
diff --git a/esphome/components/mpu6050/__init__.py b/esphome/components/mpu6050/__init__.py
index e69de29bb2..ee02560478 100644
--- a/esphome/components/mpu6050/__init__.py
+++ b/esphome/components/mpu6050/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "mpu6050"
diff --git a/esphome/components/mpu6886/__init__.py b/esphome/components/mpu6886/__init__.py
index 933f71ccd7..af9cdd2f27 100644
--- a/esphome/components/mpu6886/__init__.py
+++ b/esphome/components/mpu6886/__init__.py
@@ -1 +1,3 @@
 """Support for MPC-6886."""
+
+DOMAIN = "mpu6886"
diff --git a/esphome/components/mqtt/__init__.py b/esphome/components/mqtt/__init__.py
index 65a7cf409b..b21dc2e2f0 100644
--- a/esphome/components/mqtt/__init__.py
+++ b/esphome/components/mqtt/__init__.py
@@ -68,6 +68,7 @@ from esphome.core import CORE, CoroPriority, coroutine_with_priority
 from esphome.types import ConfigType
 
 DEPENDENCIES = ["network"]
+DOMAIN = "mqtt"
 
 
 def AUTO_LOAD():
diff --git a/esphome/components/mqtt_subscribe/__init__.py b/esphome/components/mqtt_subscribe/__init__.py
index b17f321372..ee58f82fb6 100644
--- a/esphome/components/mqtt_subscribe/__init__.py
+++ b/esphome/components/mqtt_subscribe/__init__.py
@@ -1,3 +1,5 @@
 import esphome.codegen as cg
 
+DOMAIN = "mqtt_subscribe"
+
 mqtt_subscribe_ns = cg.esphome_ns.namespace("mqtt_subscribe")
diff --git a/esphome/components/ms5611/__init__.py b/esphome/components/ms5611/__init__.py
index e69de29bb2..925c57d57b 100644
--- a/esphome/components/ms5611/__init__.py
+++ b/esphome/components/ms5611/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ms5611"
diff --git a/esphome/components/ms8607/__init__.py b/esphome/components/ms8607/__init__.py
index e1cd49ec7b..9fc73f80a9 100644
--- a/esphome/components/ms8607/__init__.py
+++ b/esphome/components/ms8607/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@e28eta"]
+DOMAIN = "ms8607"
diff --git a/esphome/components/msa3xx/__init__.py b/esphome/components/msa3xx/__init__.py
index 0beece6710..75260a1b0a 100644
--- a/esphome/components/msa3xx/__init__.py
+++ b/esphome/components/msa3xx/__init__.py
@@ -20,6 +20,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@latonita"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "msa3xx"
 
 MULTI_CONF = True
 
diff --git a/esphome/components/my9231/__init__.py b/esphome/components/my9231/__init__.py
index e43454d6ed..6fcb09a347 100644
--- a/esphome/components/my9231/__init__.py
+++ b/esphome/components/my9231/__init__.py
@@ -12,6 +12,7 @@ from esphome.const import (
 from esphome.types import ConfigType
 
 AUTO_LOAD = ["output"]
+DOMAIN = "my9231"
 my9231_ns = cg.esphome_ns.namespace("my9231")
 MY9231OutputComponent = my9231_ns.class_("MY9231OutputComponent", cg.Component)
 
diff --git a/esphome/components/nau7802/__init__.py b/esphome/components/nau7802/__init__.py
index e69de29bb2..d86eed44b8 100644
--- a/esphome/components/nau7802/__init__.py
+++ b/esphome/components/nau7802/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "nau7802"
diff --git a/esphome/components/neopixelbus/__init__.py b/esphome/components/neopixelbus/__init__.py
index e69de29bb2..0294a2a735 100644
--- a/esphome/components/neopixelbus/__init__.py
+++ b/esphome/components/neopixelbus/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "neopixelbus"
diff --git a/esphome/components/network/__init__.py b/esphome/components/network/__init__.py
index decee27bcf..1ee6d6cffa 100644
--- a/esphome/components/network/__init__.py
+++ b/esphome/components/network/__init__.py
@@ -21,6 +21,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
 AUTO_LOAD = ["mdns"]
+DOMAIN = "network"
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/esphome/components/nextion/__init__.py b/esphome/components/nextion/__init__.py
index efb6c88d28..c1ab86427e 100644
--- a/esphome/components/nextion/__init__.py
+++ b/esphome/components/nextion/__init__.py
@@ -11,6 +11,7 @@ CONF_NEXTION_ID = "nextion_id"
 CONF_PUBLISH_STATE = "publish_state"
 CONF_SEND_TO_NEXTION = "send_to_nextion"
 
+DOMAIN = "nextion"
 FILTER_SOURCE_FILES = filter_source_files_from_platform(
     {
         "nextion_upload_esp32.cpp": {
diff --git a/esphome/components/nfc/__init__.py b/esphome/components/nfc/__init__.py
index 6afc2eca09..a837edead5 100644
--- a/esphome/components/nfc/__init__.py
+++ b/esphome/components/nfc/__init__.py
@@ -2,6 +2,7 @@ from esphome import automation
 import esphome.codegen as cg
 
 CODEOWNERS = ["@jesserockz", "@kbx81"]
+DOMAIN = "nfc"
 
 nfc_ns = cg.esphome_ns.namespace("nfc")
 
diff --git a/esphome/components/noblex/__init__.py b/esphome/components/noblex/__init__.py
index ceceff9df9..a7c86b064b 100644
--- a/esphome/components/noblex/__init__.py
+++ b/esphome/components/noblex/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@AGalfra"]
+DOMAIN = "noblex"
diff --git a/esphome/components/noise/__init__.py b/esphome/components/noise/__init__.py
index 66043236b1..1769c11018 100644
--- a/esphome/components/noise/__init__.py
+++ b/esphome/components/noise/__init__.py
@@ -10,6 +10,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "noise"
 
 # Keep in sync with platformio.ini and esphome/idf_component.yml.
 # LIBSODIUM_VERSION must match the version noise-c pins in its manifests.
diff --git a/esphome/components/npi19/__init__.py b/esphome/components/npi19/__init__.py
index e69de29bb2..190848e54d 100644
--- a/esphome/components/npi19/__init__.py
+++ b/esphome/components/npi19/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "npi19"
diff --git a/esphome/components/nrf52/__init__.py b/esphome/components/nrf52/__init__.py
index 86d485777c..dc9800a361 100644
--- a/esphome/components/nrf52/__init__.py
+++ b/esphome/components/nrf52/__init__.py
@@ -86,6 +86,7 @@ from .gpio import nrf52_pin_to_code  # noqa: F401
 
 CODEOWNERS = ["@tomaszduda23"]
 AUTO_LOAD = ["zephyr", "preferences"]
+DOMAIN = "nrf52"
 IS_TARGET_PLATFORM = True
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/esphome/components/ntc/__init__.py b/esphome/components/ntc/__init__.py
index e69de29bb2..6b126fe8d0 100644
--- a/esphome/components/ntc/__init__.py
+++ b/esphome/components/ntc/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ntc"
diff --git a/esphome/components/number/__init__.py b/esphome/components/number/__init__.py
index 8edbdecee5..5822c95c7e 100644
--- a/esphome/components/number/__init__.py
+++ b/esphome/components/number/__init__.py
@@ -154,6 +154,7 @@ DEVICE_CLASSES = [
     DEVICE_CLASS_WIND_DIRECTION,
     DEVICE_CLASS_WIND_SPEED,
 ]
+DOMAIN = "number"
 IS_PLATFORM_COMPONENT = True
 
 number_ns = cg.esphome_ns.namespace("number")
diff --git a/esphome/components/one_wire/__init__.py b/esphome/components/one_wire/__init__.py
index 8d35aaa34e..69368a990a 100644
--- a/esphome/components/one_wire/__init__.py
+++ b/esphome/components/one_wire/__init__.py
@@ -5,6 +5,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@ssieb"]
+DOMAIN = "one_wire"
 
 IS_PLATFORM_COMPONENT = True
 
diff --git a/esphome/components/opentherm/__init__.py b/esphome/components/opentherm/__init__.py
index 85632d0bf8..439ec03245 100644
--- a/esphome/components/opentherm/__init__.py
+++ b/esphome/components/opentherm/__init__.py
@@ -11,6 +11,7 @@ from esphome.core import CORE
 from . import const, generate, schema, validate
 
 CODEOWNERS = ["@olegtarasov"]
+DOMAIN = "opentherm"
 MULTI_CONF = True
 
 CONF_IN_PIN = "in_pin"
diff --git a/esphome/components/openthread/__init__.py b/esphome/components/openthread/__init__.py
index 80b28a2628..84b525271f 100644
--- a/esphome/components/openthread/__init__.py
+++ b/esphome/components/openthread/__init__.py
@@ -62,6 +62,7 @@ from .const import (
 )
 
 CODEOWNERS = ["@mrene"]
+DOMAIN = "openthread"
 
 AUTO_LOAD = ["network"]
 
diff --git a/esphome/components/openthread_info/__init__.py b/esphome/components/openthread_info/__init__.py
index e69de29bb2..245d84a104 100644
--- a/esphome/components/openthread_info/__init__.py
+++ b/esphome/components/openthread_info/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "openthread_info"
diff --git a/esphome/components/opt3001/__init__.py b/esphome/components/opt3001/__init__.py
index e69de29bb2..efd544b1e2 100644
--- a/esphome/components/opt3001/__init__.py
+++ b/esphome/components/opt3001/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "opt3001"
diff --git a/esphome/components/ota/__init__.py b/esphome/components/ota/__init__.py
index 6031a68489..f7e03a1699 100644
--- a/esphome/components/ota/__init__.py
+++ b/esphome/components/ota/__init__.py
@@ -22,6 +22,7 @@ from esphome.types import ConfigType
 OTA_STATE_LISTENER_KEY = "ota_state_listener"
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "ota"
 
 
 def AUTO_LOAD() -> list[str]:
diff --git a/esphome/components/packages/__init__.py b/esphome/components/packages/__init__.py
index 703af8281d..a03b1f1c30 100644
--- a/esphome/components/packages/__init__.py
+++ b/esphome/components/packages/__init__.py
@@ -38,7 +38,7 @@ from esphome.core import EsphomeError
 
 _LOGGER = logging.getLogger(__name__)
 
-DOMAIN = CONF_PACKAGES
+DOMAIN = "packages"
 # Guard against infinite include chains (e.g. A includes B includes A).
 MAX_INCLUDE_DEPTH = 20
 
diff --git a/esphome/components/partition/__init__.py b/esphome/components/partition/__init__.py
index e69de29bb2..7d911eb405 100644
--- a/esphome/components/partition/__init__.py
+++ b/esphome/components/partition/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "partition"
diff --git a/esphome/components/pca6416a/__init__.py b/esphome/components/pca6416a/__init__.py
index 9756e9431a..69d8935977 100644
--- a/esphome/components/pca6416a/__init__.py
+++ b/esphome/components/pca6416a/__init__.py
@@ -18,6 +18,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@Mat931"]
 DEPENDENCIES = ["i2c"]
 AUTO_LOAD = ["gpio_expander"]
+DOMAIN = "pca6416a"
 MULTI_CONF = True
 pca6416a_ns = cg.esphome_ns.namespace("pca6416a")
 
diff --git a/esphome/components/pca9554/__init__.py b/esphome/components/pca9554/__init__.py
index 68e6d163e8..cba5656e88 100644
--- a/esphome/components/pca9554/__init__.py
+++ b/esphome/components/pca9554/__init__.py
@@ -17,6 +17,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@hwstar", "@clydebarrow", "@bdraco"]
 AUTO_LOAD = ["gpio_expander"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "pca9554"
 MULTI_CONF = True
 CONF_PIN_COUNT = "pin_count"
 pca9554_ns = cg.esphome_ns.namespace("pca9554")
diff --git a/esphome/components/pca9685/__init__.py b/esphome/components/pca9685/__init__.py
index 817cfd1c30..16103aee44 100644
--- a/esphome/components/pca9685/__init__.py
+++ b/esphome/components/pca9685/__init__.py
@@ -10,6 +10,7 @@ from esphome.const import (
 from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
+DOMAIN = "pca9685"
 MULTI_CONF = True
 
 pca9685_ns = cg.esphome_ns.namespace("pca9685")
diff --git a/esphome/components/pcd8544/__init__.py b/esphome/components/pcd8544/__init__.py
index e69de29bb2..ff11812a30 100644
--- a/esphome/components/pcd8544/__init__.py
+++ b/esphome/components/pcd8544/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pcd8544"
diff --git a/esphome/components/pcf85063/__init__.py b/esphome/components/pcf85063/__init__.py
index e69de29bb2..577cea5e1e 100644
--- a/esphome/components/pcf85063/__init__.py
+++ b/esphome/components/pcf85063/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pcf85063"
diff --git a/esphome/components/pcf8563/__init__.py b/esphome/components/pcf8563/__init__.py
index e69de29bb2..624ec1be8c 100644
--- a/esphome/components/pcf8563/__init__.py
+++ b/esphome/components/pcf8563/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pcf8563"
diff --git a/esphome/components/pcf8574/__init__.py b/esphome/components/pcf8574/__init__.py
index 4ee1c2af56..6c9ed3cd98 100644
--- a/esphome/components/pcf8574/__init__.py
+++ b/esphome/components/pcf8574/__init__.py
@@ -16,6 +16,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["gpio_expander"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "pcf8574"
 MULTI_CONF = True
 
 pcf8574_ns = cg.esphome_ns.namespace("pcf8574")
diff --git a/esphome/components/pcm5122/__init__.py b/esphome/components/pcm5122/__init__.py
index 81e00ca74b..f79d1eadfc 100644
--- a/esphome/components/pcm5122/__init__.py
+++ b/esphome/components/pcm5122/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@remcom"]
+DOMAIN = "pcm5122"
diff --git a/esphome/components/pi4ioe5v6408/__init__.py b/esphome/components/pi4ioe5v6408/__init__.py
index 45d84b88ef..cd901cb448 100644
--- a/esphome/components/pi4ioe5v6408/__init__.py
+++ b/esphome/components/pi4ioe5v6408/__init__.py
@@ -20,6 +20,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["gpio_expander"]
 CODEOWNERS = ["@jesserockz"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "pi4ioe5v6408"
 MULTI_CONF = True
 
 
diff --git a/esphome/components/pid/__init__.py b/esphome/components/pid/__init__.py
index 71a87b6ae5..b7b1c5c7af 100644
--- a/esphome/components/pid/__init__.py
+++ b/esphome/components/pid/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@OttoWinter"]
+DOMAIN = "pid"
diff --git a/esphome/components/pipsolar/__init__.py b/esphome/components/pipsolar/__init__.py
index b404409145..54337b0b13 100644
--- a/esphome/components/pipsolar/__init__.py
+++ b/esphome/components/pipsolar/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 DEPENDENCIES = ["uart"]
 CODEOWNERS = ["@andreashergert1984"]
 AUTO_LOAD = ["binary_sensor", "text_sensor", "sensor", "switch", "output"]
+DOMAIN = "pipsolar"
 MULTI_CONF = True
 
 CONF_PIPSOLAR_ID = "pipsolar_id"
diff --git a/esphome/components/pixoo/__init__.py b/esphome/components/pixoo/__init__.py
index b1de57df8f..a2c5172bd1 100644
--- a/esphome/components/pixoo/__init__.py
+++ b/esphome/components/pixoo/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@jesserockz"]
+DOMAIN = "pixoo"
diff --git a/esphome/components/pm1006/__init__.py b/esphome/components/pm1006/__init__.py
index e69de29bb2..e79bb3f2a4 100644
--- a/esphome/components/pm1006/__init__.py
+++ b/esphome/components/pm1006/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pm1006"
diff --git a/esphome/components/pm2005/__init__.py b/esphome/components/pm2005/__init__.py
index 3716dd7b5e..bda634dc03 100644
--- a/esphome/components/pm2005/__init__.py
+++ b/esphome/components/pm2005/__init__.py
@@ -1 +1,3 @@
 """PM2005/2105 component for ESPHome."""
+
+DOMAIN = "pm2005"
diff --git a/esphome/components/pmsa003i/__init__.py b/esphome/components/pmsa003i/__init__.py
index e69de29bb2..e66395e3de 100644
--- a/esphome/components/pmsa003i/__init__.py
+++ b/esphome/components/pmsa003i/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pmsa003i"
diff --git a/esphome/components/pmsx003/__init__.py b/esphome/components/pmsx003/__init__.py
index e69de29bb2..1c60a105dd 100644
--- a/esphome/components/pmsx003/__init__.py
+++ b/esphome/components/pmsx003/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pmsx003"
diff --git a/esphome/components/pmwcs3/__init__.py b/esphome/components/pmwcs3/__init__.py
index b04c30a005..64229140cb 100644
--- a/esphome/components/pmwcs3/__init__.py
+++ b/esphome/components/pmwcs3/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@SeByDocKy"]
+DOMAIN = "pmwcs3"
diff --git a/esphome/components/pn532/__init__.py b/esphome/components/pn532/__init__.py
index c9118834c5..b8efeb213c 100644
--- a/esphome/components/pn532/__init__.py
+++ b/esphome/components/pn532/__init__.py
@@ -13,6 +13,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@OttoWinter", "@jesserockz"]
 AUTO_LOAD = ["binary_sensor", "nfc"]
+DOMAIN = "pn532"
 MULTI_CONF = True
 
 CONF_PN532_ID = "pn532_id"
diff --git a/esphome/components/pn532_i2c/__init__.py b/esphome/components/pn532_i2c/__init__.py
index 16b877b1f1..bd2a9373d7 100644
--- a/esphome/components/pn532_i2c/__init__.py
+++ b/esphome/components/pn532_i2c/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["pn532"]
 CODEOWNERS = ["@OttoWinter", "@jesserockz"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "pn532_i2c"
 MULTI_CONF = True
 
 pn532_i2c_ns = cg.esphome_ns.namespace("pn532_i2c")
diff --git a/esphome/components/pn532_spi/__init__.py b/esphome/components/pn532_spi/__init__.py
index 734f794180..0e24425f76 100644
--- a/esphome/components/pn532_spi/__init__.py
+++ b/esphome/components/pn532_spi/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["pn532"]
 CODEOWNERS = ["@OttoWinter", "@jesserockz"]
 DEPENDENCIES = ["spi"]
+DOMAIN = "pn532_spi"
 MULTI_CONF = True
 
 pn532_spi_ns = cg.esphome_ns.namespace("pn532_spi")
diff --git a/esphome/components/pn7150/__init__.py b/esphome/components/pn7150/__init__.py
index 14299ee310..4fbe07e2e3 100644
--- a/esphome/components/pn7150/__init__.py
+++ b/esphome/components/pn7150/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["pn71xx"]
 CODEOWNERS = ["@kbx81", "@jesserockz"]
+DOMAIN = "pn7150"
 
 pn7150_ns = cg.esphome_ns.namespace("pn7150")
 PN7150 = pn7150_ns.class_("PN7150", pn71xx.PN71xx)
diff --git a/esphome/components/pn7150_i2c/__init__.py b/esphome/components/pn7150_i2c/__init__.py
index d15c0b431e..c0dfb4c2e4 100644
--- a/esphome/components/pn7150_i2c/__init__.py
+++ b/esphome/components/pn7150_i2c/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["pn7150"]
 CODEOWNERS = ["@kbx81", "@jesserockz"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "pn7150_i2c"
 
 pn7150_i2c_ns = cg.esphome_ns.namespace("pn7150_i2c")
 PN7150I2C = pn7150_i2c_ns.class_("PN7150I2C", pn7150.PN7150, i2c.I2CDevice)
diff --git a/esphome/components/pn7160/__init__.py b/esphome/components/pn7160/__init__.py
index 4cde36e9e7..f1bd6122ff 100644
--- a/esphome/components/pn7160/__init__.py
+++ b/esphome/components/pn7160/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["pn71xx"]
 CODEOWNERS = ["@kbx81", "@jesserockz"]
+DOMAIN = "pn7160"
 
 CONF_DWL_REQ_PIN = "dwl_req_pin"
 CONF_WKUP_REQ_PIN = "wkup_req_pin"
diff --git a/esphome/components/pn7160_i2c/__init__.py b/esphome/components/pn7160_i2c/__init__.py
index d711c3e48f..f9add96bdf 100644
--- a/esphome/components/pn7160_i2c/__init__.py
+++ b/esphome/components/pn7160_i2c/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["pn7160"]
 CODEOWNERS = ["@kbx81", "@jesserockz"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "pn7160_i2c"
 
 pn7160_i2c_ns = cg.esphome_ns.namespace("pn7160_i2c")
 PN7160I2C = pn7160_i2c_ns.class_("PN7160I2C", pn7160.PN7160, i2c.I2CDevice)
diff --git a/esphome/components/pn7160_spi/__init__.py b/esphome/components/pn7160_spi/__init__.py
index 7705dfa6f6..32c1008f72 100644
--- a/esphome/components/pn7160_spi/__init__.py
+++ b/esphome/components/pn7160_spi/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["pn7160"]
 CODEOWNERS = ["@kbx81", "@jesserockz"]
 DEPENDENCIES = ["spi"]
+DOMAIN = "pn7160_spi"
 MULTI_CONF = True
 
 pn7160_spi_ns = cg.esphome_ns.namespace("pn7160_spi")
diff --git a/esphome/components/pn71xx/__init__.py b/esphome/components/pn71xx/__init__.py
index 8472d4192c..3b40eb1141 100644
--- a/esphome/components/pn71xx/__init__.py
+++ b/esphome/components/pn71xx/__init__.py
@@ -17,6 +17,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["binary_sensor", "nfc"]
 CODEOWNERS = ["@kbx81", "@jesserockz"]
+DOMAIN = "pn71xx"
 
 CONF_EMULATION_MESSAGE = "emulation_message"
 CONF_INCLUDE_ANDROID_APP_RECORD = "include_android_app_record"
diff --git a/esphome/components/power_supply/__init__.py b/esphome/components/power_supply/__init__.py
index b68118b352..4d90642b5f 100644
--- a/esphome/components/power_supply/__init__.py
+++ b/esphome/components/power_supply/__init__.py
@@ -11,6 +11,7 @@ from esphome.const import (
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "power_supply"
 power_supply_ns = cg.esphome_ns.namespace("power_supply")
 PowerSupply = power_supply_ns.class_("PowerSupply", cg.Component)
 MULTI_CONF = True
diff --git a/esphome/components/preferences/__init__.py b/esphome/components/preferences/__init__.py
index abd050ec3b..142cfb32dc 100644
--- a/esphome/components/preferences/__init__.py
+++ b/esphome/components/preferences/__init__.py
@@ -7,6 +7,7 @@ from esphome.coroutine import CoroPriority
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "preferences"
 
 preferences_ns = cg.esphome_ns.namespace("preferences")
 IntervalSyncer = preferences_ns.class_("IntervalSyncer", cg.PollingComponent)
diff --git a/esphome/components/prometheus/__init__.py b/esphome/components/prometheus/__init__.py
index 3624fb2442..8bf0163fa7 100644
--- a/esphome/components/prometheus/__init__.py
+++ b/esphome/components/prometheus/__init__.py
@@ -7,6 +7,7 @@ from esphome.cpp_types import EntityBase
 from esphome.types import ConfigType
 
 AUTO_LOAD = ["web_server_base"]
+DOMAIN = "prometheus"
 
 prometheus_ns = cg.esphome_ns.namespace("prometheus")
 PrometheusHandler = prometheus_ns.class_("PrometheusHandler", cg.Component)
diff --git a/esphome/components/pulse_counter/__init__.py b/esphome/components/pulse_counter/__init__.py
index e69de29bb2..9efceae6de 100644
--- a/esphome/components/pulse_counter/__init__.py
+++ b/esphome/components/pulse_counter/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pulse_counter"
diff --git a/esphome/components/pulse_meter/__init__.py b/esphome/components/pulse_meter/__init__.py
index e69de29bb2..7c4fef139c 100644
--- a/esphome/components/pulse_meter/__init__.py
+++ b/esphome/components/pulse_meter/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pulse_meter"
diff --git a/esphome/components/pulse_width/__init__.py b/esphome/components/pulse_width/__init__.py
index e69de29bb2..97cf2e1c39 100644
--- a/esphome/components/pulse_width/__init__.py
+++ b/esphome/components/pulse_width/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pulse_width"
diff --git a/esphome/components/pvvx_mithermometer/__init__.py b/esphome/components/pvvx_mithermometer/__init__.py
index e69de29bb2..56767de804 100644
--- a/esphome/components/pvvx_mithermometer/__init__.py
+++ b/esphome/components/pvvx_mithermometer/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pvvx_mithermometer"
diff --git a/esphome/components/pylontech/__init__.py b/esphome/components/pylontech/__init__.py
index 242a613a6c..f9eef4c809 100644
--- a/esphome/components/pylontech/__init__.py
+++ b/esphome/components/pylontech/__init__.py
@@ -10,6 +10,7 @@ _LOGGER = logging.getLogger(__name__)
 
 CODEOWNERS = ["@functionpointer"]
 DEPENDENCIES = ["uart"]
+DOMAIN = "pylontech"
 MULTI_CONF = True
 
 CONF_PYLONTECH_ID = "pylontech_id"
diff --git a/esphome/components/pzem004t/__init__.py b/esphome/components/pzem004t/__init__.py
index e69de29bb2..f8d5b7a0c1 100644
--- a/esphome/components/pzem004t/__init__.py
+++ b/esphome/components/pzem004t/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pzem004t"
diff --git a/esphome/components/pzem6l24/__init__.py b/esphome/components/pzem6l24/__init__.py
index e69de29bb2..45ecb06188 100644
--- a/esphome/components/pzem6l24/__init__.py
+++ b/esphome/components/pzem6l24/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pzem6l24"
diff --git a/esphome/components/pzemac/__init__.py b/esphome/components/pzemac/__init__.py
index e69de29bb2..600881c324 100644
--- a/esphome/components/pzemac/__init__.py
+++ b/esphome/components/pzemac/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pzemac"
diff --git a/esphome/components/pzemdc/__init__.py b/esphome/components/pzemdc/__init__.py
index e69de29bb2..81e2bf067d 100644
--- a/esphome/components/pzemdc/__init__.py
+++ b/esphome/components/pzemdc/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "pzemdc"
diff --git a/esphome/components/qmc5883l/__init__.py b/esphome/components/qmc5883l/__init__.py
index e69de29bb2..fb646a60c3 100644
--- a/esphome/components/qmc5883l/__init__.py
+++ b/esphome/components/qmc5883l/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "qmc5883l"
diff --git a/esphome/components/qmi8658/__init__.py b/esphome/components/qmi8658/__init__.py
index 67838dbc3c..6c871dfc4e 100644
--- a/esphome/components/qmi8658/__init__.py
+++ b/esphome/components/qmi8658/__init__.py
@@ -4,6 +4,7 @@ from esphome.components.motion import MotionComponent
 
 CODEOWNERS = ["@clydebarrow"]
 DEPENDENCIES = ["i2c", "motion"]
+DOMAIN = "qmi8658"
 
 CONF_QMI8658_ID = "qmi8658_id"
 #  C++ namespace / class
diff --git a/esphome/components/qmp6988/__init__.py b/esphome/components/qmp6988/__init__.py
index 09bcf51589..86498d192a 100644
--- a/esphome/components/qmp6988/__init__.py
+++ b/esphome/components/qmp6988/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@andrewpc"]
+DOMAIN = "qmp6988"
diff --git a/esphome/components/qr_code/__init__.py b/esphome/components/qr_code/__init__.py
index 8b773dcdf5..222041837b 100644
--- a/esphome/components/qr_code/__init__.py
+++ b/esphome/components/qr_code/__init__.py
@@ -7,6 +7,7 @@ CONF_SCALE = "scale"
 CONF_ECC = "ecc"
 
 CODEOWNERS = ["@wjtje"]
+DOMAIN = "qr_code"
 
 DEPENDENCIES = ["display"]
 MULTI_CONF = True
diff --git a/esphome/components/qspi_dbi/__init__.py b/esphome/components/qspi_dbi/__init__.py
index aebbe2fcc8..abf64f675a 100644
--- a/esphome/components/qspi_dbi/__init__.py
+++ b/esphome/components/qspi_dbi/__init__.py
@@ -1,4 +1,5 @@
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "qspi_dbi"
 
 CONF_DRAW_FROM_ORIGIN = "draw_from_origin"
 
diff --git a/esphome/components/qwiic_pir/__init__.py b/esphome/components/qwiic_pir/__init__.py
index e69de29bb2..2232f1e670 100644
--- a/esphome/components/qwiic_pir/__init__.py
+++ b/esphome/components/qwiic_pir/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "qwiic_pir"
diff --git a/esphome/components/radio_frequency/__init__.py b/esphome/components/radio_frequency/__init__.py
index ebba97d1a3..cd680450d5 100644
--- a/esphome/components/radio_frequency/__init__.py
+++ b/esphome/components/radio_frequency/__init__.py
@@ -20,6 +20,7 @@ from esphome.types import ConfigType, SafeExpType
 
 CODEOWNERS = ["@kbx81"]
 AUTO_LOAD = ["ir_rf_base"]
+DOMAIN = "radio_frequency"
 
 IS_PLATFORM_COMPONENT = True
 
diff --git a/esphome/components/radon_eye_ble/__init__.py b/esphome/components/radon_eye_ble/__init__.py
index 0ca9f64326..e2af976399 100644
--- a/esphome/components/radon_eye_ble/__init__.py
+++ b/esphome/components/radon_eye_ble/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["ble_device_base"]
 CODEOWNERS = ["@jeffeb3"]
+DOMAIN = "radon_eye_ble"
 
 radon_eye_ble_ns = cg.esphome_ns.namespace("radon_eye_ble")
 RadonEyeListener = radon_eye_ble_ns.class_(
diff --git a/esphome/components/radon_eye_rd200/__init__.py b/esphome/components/radon_eye_rd200/__init__.py
index 0740f6967b..a2076ef945 100644
--- a/esphome/components/radon_eye_rd200/__init__.py
+++ b/esphome/components/radon_eye_rd200/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@jeffeb3"]
+DOMAIN = "radon_eye_rd200"
diff --git a/esphome/components/rc522/__init__.py b/esphome/components/rc522/__init__.py
index e9e8dd7b73..69cc713813 100644
--- a/esphome/components/rc522/__init__.py
+++ b/esphome/components/rc522/__init__.py
@@ -13,6 +13,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@glmnet"]
 AUTO_LOAD = ["binary_sensor"]
+DOMAIN = "rc522"
 
 CONF_RC522_ID = "rc522_id"
 
diff --git a/esphome/components/rc522_i2c/__init__.py b/esphome/components/rc522_i2c/__init__.py
index c3fd368bbd..3fa9ef8a7b 100644
--- a/esphome/components/rc522_i2c/__init__.py
+++ b/esphome/components/rc522_i2c/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@glmnet"]
 DEPENDENCIES = ["i2c"]
 AUTO_LOAD = ["rc522"]
+DOMAIN = "rc522_i2c"
 MULTI_CONF = True
 
 rc522_i2c_ns = cg.esphome_ns.namespace("rc522_i2c")
diff --git a/esphome/components/rc522_spi/__init__.py b/esphome/components/rc522_spi/__init__.py
index f2820bbaee..6f517458bb 100644
--- a/esphome/components/rc522_spi/__init__.py
+++ b/esphome/components/rc522_spi/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@glmnet"]
 DEPENDENCIES = ["spi"]
 AUTO_LOAD = ["rc522"]
+DOMAIN = "rc522_spi"
 MULTI_CONF = True
 
 rc522_spi_ns = cg.esphome_ns.namespace("rc522_spi")
diff --git a/esphome/components/rd03d/__init__.py b/esphome/components/rd03d/__init__.py
index 4fff41e4f6..96bf4ffd74 100644
--- a/esphome/components/rd03d/__init__.py
+++ b/esphome/components/rd03d/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@jasstrong"]
 DEPENDENCIES = ["uart"]
+DOMAIN = "rd03d"
 MULTI_CONF = True
 
 CONF_RD03D_ID = "rd03d_id"
diff --git a/esphome/components/rdm6300/__init__.py b/esphome/components/rdm6300/__init__.py
index d3803bd3f7..86eb2cd738 100644
--- a/esphome/components/rdm6300/__init__.py
+++ b/esphome/components/rdm6300/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 
 DEPENDENCIES = ["uart"]
 AUTO_LOAD = ["binary_sensor"]
+DOMAIN = "rdm6300"
 MULTI_CONF = True
 
 rdm6300_ns = cg.esphome_ns.namespace("rdm6300")
diff --git a/esphome/components/remote_base/__init__.py b/esphome/components/remote_base/__init__.py
index e9708d0a9f..872106e405 100644
--- a/esphome/components/remote_base/__init__.py
+++ b/esphome/components/remote_base/__init__.py
@@ -51,6 +51,7 @@ from esphome.types import ConfigType, TemplateArgsType
 from esphome.util import Registry, SimpleRegistry
 
 AUTO_LOAD = ["binary_sensor"]
+DOMAIN = "remote_base"
 
 
 CONF_RECEIVER_ID = "receiver_id"
diff --git a/esphome/components/remote_receiver/__init__.py b/esphome/components/remote_receiver/__init__.py
index 866e108131..481acaa06c 100644
--- a/esphome/components/remote_receiver/__init__.py
+++ b/esphome/components/remote_receiver/__init__.py
@@ -29,6 +29,7 @@ CONF_FILTER_SYMBOLS = "filter_symbols"
 CONF_RECEIVE_SYMBOLS = "receive_symbols"
 
 AUTO_LOAD = ["remote_base"]
+DOMAIN = "remote_receiver"
 remote_receiver_ns = cg.esphome_ns.namespace("remote_receiver")
 remote_base_ns = cg.esphome_ns.namespace("remote_base")
 
diff --git a/esphome/components/remote_transmitter/__init__.py b/esphome/components/remote_transmitter/__init__.py
index 68eac315d5..7553ed767b 100644
--- a/esphome/components/remote_transmitter/__init__.py
+++ b/esphome/components/remote_transmitter/__init__.py
@@ -26,6 +26,7 @@ from esphome.types import ConfigType
 _LOGGER = logging.getLogger(__name__)
 
 AUTO_LOAD = ["remote_base"]
+DOMAIN = "remote_transmitter"
 
 CONF_EOT_LEVEL = "eot_level"
 CONF_NON_BLOCKING = "non_blocking"
diff --git a/esphome/components/resampler/__init__.py b/esphome/components/resampler/__init__.py
index b9b070e015..e41b004b86 100644
--- a/esphome/components/resampler/__init__.py
+++ b/esphome/components/resampler/__init__.py
@@ -3,6 +3,8 @@ from typing import Any
 import esphome.codegen as cg
 import esphome.config_validation as cv
 
+DOMAIN = "resampler"
+
 resampler_ns = cg.esphome_ns.namespace("resampler")
 
 CONF_TAPS = "taps"
diff --git a/esphome/components/resistance/__init__.py b/esphome/components/resistance/__init__.py
index e69de29bb2..5bba63cc1b 100644
--- a/esphome/components/resistance/__init__.py
+++ b/esphome/components/resistance/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "resistance"
diff --git a/esphome/components/restart/__init__.py b/esphome/components/restart/__init__.py
index f70ffa9520..6337520ebd 100644
--- a/esphome/components/restart/__init__.py
+++ b/esphome/components/restart/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "restart"
diff --git a/esphome/components/rf_bridge/__init__.py b/esphome/components/rf_bridge/__init__.py
index fed8365e9e..e967335c18 100644
--- a/esphome/components/rf_bridge/__init__.py
+++ b/esphome/components/rf_bridge/__init__.py
@@ -16,6 +16,7 @@ from esphome.const import (
 
 DEPENDENCIES = ["uart"]
 CODEOWNERS = ["@jesserockz"]
+DOMAIN = "rf_bridge"
 
 rf_bridge_ns = cg.esphome_ns.namespace("rf_bridge")
 RFBridgeComponent = rf_bridge_ns.class_(
diff --git a/esphome/components/rgb/__init__.py b/esphome/components/rgb/__init__.py
index e69de29bb2..11e05410be 100644
--- a/esphome/components/rgb/__init__.py
+++ b/esphome/components/rgb/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "rgb"
diff --git a/esphome/components/rgbct/__init__.py b/esphome/components/rgbct/__init__.py
index e69de29bb2..b8a02914c5 100644
--- a/esphome/components/rgbct/__init__.py
+++ b/esphome/components/rgbct/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "rgbct"
diff --git a/esphome/components/rgbw/__init__.py b/esphome/components/rgbw/__init__.py
index e69de29bb2..0635bc36c3 100644
--- a/esphome/components/rgbw/__init__.py
+++ b/esphome/components/rgbw/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "rgbw"
diff --git a/esphome/components/rgbww/__init__.py b/esphome/components/rgbww/__init__.py
index e69de29bb2..ce95d11431 100644
--- a/esphome/components/rgbww/__init__.py
+++ b/esphome/components/rgbww/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "rgbww"
diff --git a/esphome/components/ring_buffer/__init__.py b/esphome/components/ring_buffer/__init__.py
index b53476dcac..d053a7e409 100644
--- a/esphome/components/ring_buffer/__init__.py
+++ b/esphome/components/ring_buffer/__init__.py
@@ -2,6 +2,7 @@ import esphome.codegen as cg
 
 CODEOWNERS = ["@kahrendt"]
 DEPENDENCIES = ["esp32"]
+DOMAIN = "ring_buffer"
 
 ring_buffer_ns = cg.esphome_ns.namespace("ring_buffer")
 RingBuffer = ring_buffer_ns.class_("RingBuffer")
diff --git a/esphome/components/rotary_encoder/__init__.py b/esphome/components/rotary_encoder/__init__.py
index e69de29bb2..5f448e531c 100644
--- a/esphome/components/rotary_encoder/__init__.py
+++ b/esphome/components/rotary_encoder/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "rotary_encoder"
diff --git a/esphome/components/router/__init__.py b/esphome/components/router/__init__.py
index e69de29bb2..49a5eec426 100644
--- a/esphome/components/router/__init__.py
+++ b/esphome/components/router/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "router"
diff --git a/esphome/components/rp2/__init__.py b/esphome/components/rp2/__init__.py
index 23346ca6f4..76dd240f7a 100644
--- a/esphome/components/rp2/__init__.py
+++ b/esphome/components/rp2/__init__.py
@@ -57,6 +57,7 @@ from .gpio import rp2_pin_to_code  # noqa: F401
 _LOGGER = logging.getLogger(__name__)
 CODEOWNERS = ["@jesserockz"]
 AUTO_LOAD = ["preferences"]
+DOMAIN = "rp2"
 IS_TARGET_PLATFORM = True
 
 # Legacy top-level YAML keys that route here. The framework
diff --git a/esphome/components/rp2040_ble/__init__.py b/esphome/components/rp2040_ble/__init__.py
index d2a08e9fc0..bd0157d60e 100644
--- a/esphome/components/rp2040_ble/__init__.py
+++ b/esphome/components/rp2040_ble/__init__.py
@@ -8,6 +8,7 @@ from esphome.types import ConfigType
 
 DEPENDENCIES = ["rp2"]
 CODEOWNERS = ["@bdraco"]
+DOMAIN = "rp2040_ble"
 
 CONF_RP2040_BLE_ID = "rp2040_ble_id"
 
diff --git a/esphome/components/rp2040_pio_led_strip/__init__.py b/esphome/components/rp2040_pio_led_strip/__init__.py
index 4c9aa2d155..10b24efa09 100644
--- a/esphome/components/rp2040_pio_led_strip/__init__.py
+++ b/esphome/components/rp2040_pio_led_strip/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@Papa-DMan"]
+DOMAIN = "rp2040_pio_led_strip"
diff --git a/esphome/components/rp2040_pwm/__init__.py b/esphome/components/rp2040_pwm/__init__.py
index e69de29bb2..3abe0b8c83 100644
--- a/esphome/components/rp2040_pwm/__init__.py
+++ b/esphome/components/rp2040_pwm/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "rp2040_pwm"
diff --git a/esphome/components/rp2_ble_tracker/__init__.py b/esphome/components/rp2_ble_tracker/__init__.py
index 12857a556f..4a3d3f788b 100644
--- a/esphome/components/rp2_ble_tracker/__init__.py
+++ b/esphome/components/rp2_ble_tracker/__init__.py
@@ -33,6 +33,7 @@ from esphome.types import ConfigType
 DEPENDENCIES = ["rp2"]
 AUTO_LOAD = ["ble_device_base", "rp2040_ble"]
 CODEOWNERS = ["@bdraco"]
+DOMAIN = "rp2_ble_tracker"
 
 ble_device_base.register_hub_provider("rp2_ble_tracker")
 
diff --git a/esphome/components/rp2_pio/__init__.py b/esphome/components/rp2_pio/__init__.py
index 915ab73b87..1b2236ae8e 100644
--- a/esphome/components/rp2_pio/__init__.py
+++ b/esphome/components/rp2_pio/__init__.py
@@ -5,6 +5,7 @@ import esphome.config_validation as cv
 from esphome.types import ConfigType
 
 DEPENDENCIES = ["rp2"]
+DOMAIN = "rp2_pio"
 
 
 PIOASM_REPO_VERSION = "1.5.0-b"
diff --git a/esphome/components/rpi_dpi_rgb/__init__.py b/esphome/components/rpi_dpi_rgb/__init__.py
index 8628f0e063..20629fd730 100644
--- a/esphome/components/rpi_dpi_rgb/__init__.py
+++ b/esphome/components/rpi_dpi_rgb/__init__.py
@@ -1,4 +1,5 @@
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "rpi_dpi_rgb"
 
 DEPRECATED_COMPONENT = """
 The 'rpi_dpi_rgb' component is deprecated and no new models will be added to it.
diff --git a/esphome/components/rtl87xx/__init__.py b/esphome/components/rtl87xx/__init__.py
index 88928b2bce..d3d5150819 100644
--- a/esphome/components/rtl87xx/__init__.py
+++ b/esphome/components/rtl87xx/__init__.py
@@ -35,6 +35,7 @@ from .boards import RTL87XX_BOARD_PINS, RTL87XX_BOARDS
 
 CODEOWNERS = ["@kuba2k2"]
 AUTO_LOAD = ["libretiny"]
+DOMAIN = "rtl87xx"
 IS_TARGET_PLATFORM = True
 
 COMPONENT_DATA = LibreTinyComponent(
diff --git a/esphome/components/rtttl/__init__.py b/esphome/components/rtttl/__init__.py
index 4f4d17b441..47b8f26e3f 100644
--- a/esphome/components/rtttl/__init__.py
+++ b/esphome/components/rtttl/__init__.py
@@ -12,6 +12,7 @@ from esphome.types import ConfigType
 _LOGGER = logging.getLogger(__name__)
 
 CODEOWNERS = ["@glmnet", "@ximex"]
+DOMAIN = "rtttl"
 CONF_RTTTL = "rtttl"
 CONF_ON_FINISHED_PLAYBACK = "on_finished_playback"
 
diff --git a/esphome/components/runtime_image/__init__.py b/esphome/components/runtime_image/__init__.py
index e27fcadbee..fcf5cb770c 100644
--- a/esphome/components/runtime_image/__init__.py
+++ b/esphome/components/runtime_image/__init__.py
@@ -17,6 +17,7 @@ from esphome.core import CORE
 
 AUTO_LOAD = ["image"]
 CODEOWNERS = ["@guillempages", "@clydebarrow", "@kahrendt"]
+DOMAIN = "runtime_image"
 
 CONF_PLACEHOLDER = "placeholder"
 CONF_TRANSPARENCY = "transparency"
diff --git a/esphome/components/runtime_stats/__init__.py b/esphome/components/runtime_stats/__init__.py
index 62f5f46cb4..2d1a6ac910 100644
--- a/esphome/components/runtime_stats/__init__.py
+++ b/esphome/components/runtime_stats/__init__.py
@@ -8,6 +8,7 @@ from esphome.const import CONF_ID
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@bdraco"]
+DOMAIN = "runtime_stats"
 
 CONF_LOG_INTERVAL = "log_interval"
 
diff --git a/esphome/components/ruuvi_ble/__init__.py b/esphome/components/ruuvi_ble/__init__.py
index ac4bafbb1a..ccfa8ecf10 100644
--- a/esphome/components/ruuvi_ble/__init__.py
+++ b/esphome/components/ruuvi_ble/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID
 from esphome.types import ConfigType
 
 AUTO_LOAD = ["ble_device_base"]
+DOMAIN = "ruuvi_ble"
 
 ruuvi_ble_ns = cg.esphome_ns.namespace("ruuvi_ble")
 RuuviListener = ruuvi_ble_ns.class_(
diff --git a/esphome/components/ruuvitag/__init__.py b/esphome/components/ruuvitag/__init__.py
index e69de29bb2..2a0e78efc8 100644
--- a/esphome/components/ruuvitag/__init__.py
+++ b/esphome/components/ruuvitag/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ruuvitag"
diff --git a/esphome/components/rx8025t/__init__.py b/esphome/components/rx8025t/__init__.py
index e69de29bb2..e0b7464656 100644
--- a/esphome/components/rx8025t/__init__.py
+++ b/esphome/components/rx8025t/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "rx8025t"
diff --git a/esphome/components/rx8130/__init__.py b/esphome/components/rx8130/__init__.py
index e69de29bb2..3b5225c024 100644
--- a/esphome/components/rx8130/__init__.py
+++ b/esphome/components/rx8130/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "rx8130"
diff --git a/esphome/components/safe_mode/__init__.py b/esphome/components/safe_mode/__init__.py
index 5d03ed70a8..8cb2653547 100644
--- a/esphome/components/safe_mode/__init__.py
+++ b/esphome/components/safe_mode/__init__.py
@@ -15,6 +15,7 @@ from esphome.cpp_generator import RawExpression
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@paulmonigatti", "@jsuanet", "@kbx81"]
+DOMAIN = "safe_mode"
 
 CONF_BOOT_IS_GOOD_AFTER = "boot_is_good_after"
 CONF_BOOT_IS_GOOD_ON_SHUTDOWN = "boot_is_good_on_shutdown"
diff --git a/esphome/components/scd30/__init__.py b/esphome/components/scd30/__init__.py
index e69de29bb2..71e20c7e13 100644
--- a/esphome/components/scd30/__init__.py
+++ b/esphome/components/scd30/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "scd30"
diff --git a/esphome/components/scd4x/__init__.py b/esphome/components/scd4x/__init__.py
index e69de29bb2..338bfdf59b 100644
--- a/esphome/components/scd4x/__init__.py
+++ b/esphome/components/scd4x/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "scd4x"
diff --git a/esphome/components/script/__init__.py b/esphome/components/script/__init__.py
index 2c79e9ed0a..e7ffcb140e 100644
--- a/esphome/components/script/__init__.py
+++ b/esphome/components/script/__init__.py
@@ -6,6 +6,7 @@ from esphome.const import CONF_ID, CONF_MODE, CONF_PARAMETERS, CONF_RESTART
 from esphome.core import CORE, EsphomeError
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "script"
 script_ns = cg.esphome_ns.namespace("script")
 Script = script_ns.class_("Script", automation.Trigger.template())
 ScriptExecuteAction = script_ns.class_("ScriptExecuteAction", automation.Action)
diff --git a/esphome/components/sdl/__init__.py b/esphome/components/sdl/__init__.py
index 872d831850..a8a2391a3c 100644
--- a/esphome/components/sdl/__init__.py
+++ b/esphome/components/sdl/__init__.py
@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "sdl"
 
 SDL_KeyCode = cg.global_ns.enum("SDL_KeyCode")
 
diff --git a/esphome/components/sdm_meter/__init__.py b/esphome/components/sdm_meter/__init__.py
index e69de29bb2..b13d6e18b6 100644
--- a/esphome/components/sdm_meter/__init__.py
+++ b/esphome/components/sdm_meter/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sdm_meter"
diff --git a/esphome/components/sdp3x/__init__.py b/esphome/components/sdp3x/__init__.py
index e69de29bb2..50ffb263bf 100644
--- a/esphome/components/sdp3x/__init__.py
+++ b/esphome/components/sdp3x/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sdp3x"
diff --git a/esphome/components/sds011/__init__.py b/esphome/components/sds011/__init__.py
index e69de29bb2..386bc61be5 100644
--- a/esphome/components/sds011/__init__.py
+++ b/esphome/components/sds011/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sds011"
diff --git a/esphome/components/seeed_mr24hpc1/__init__.py b/esphome/components/seeed_mr24hpc1/__init__.py
index 56630f18f4..4ec01e46c6 100644
--- a/esphome/components/seeed_mr24hpc1/__init__.py
+++ b/esphome/components/seeed_mr24hpc1/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 DEPENDENCIES = ["uart"]
 # is the code owner of the relevant code base
 CODEOWNERS = ["@limengdu"]
+DOMAIN = "seeed_mr24hpc1"
 # The current component or platform can be configured or defined multiple times in the same configuration file.
 MULTI_CONF = True
 
diff --git a/esphome/components/seeed_mr60bha2/__init__.py b/esphome/components/seeed_mr60bha2/__init__.py
index 6bf8657af9..7a85567510 100644
--- a/esphome/components/seeed_mr60bha2/__init__.py
+++ b/esphome/components/seeed_mr60bha2/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@limengdu"]
 DEPENDENCIES = ["uart"]
+DOMAIN = "seeed_mr60bha2"
 MULTI_CONF = True
 
 mr60bha2_ns = cg.esphome_ns.namespace("seeed_mr60bha2")
diff --git a/esphome/components/seeed_mr60fda2/__init__.py b/esphome/components/seeed_mr60fda2/__init__.py
index 159a1ece9c..cc22741583 100644
--- a/esphome/components/seeed_mr60fda2/__init__.py
+++ b/esphome/components/seeed_mr60fda2/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@limengdu"]
 DEPENDENCIES = ["uart"]
+DOMAIN = "seeed_mr60fda2"
 MULTI_CONF = True
 
 mr60fda2_ns = cg.esphome_ns.namespace("seeed_mr60fda2")
diff --git a/esphome/components/selec_meter/__init__.py b/esphome/components/selec_meter/__init__.py
index e69de29bb2..469119b8ac 100644
--- a/esphome/components/selec_meter/__init__.py
+++ b/esphome/components/selec_meter/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "selec_meter"
diff --git a/esphome/components/select/__init__.py b/esphome/components/select/__init__.py
index fa266fc81f..07f86c1330 100644
--- a/esphome/components/select/__init__.py
+++ b/esphome/components/select/__init__.py
@@ -30,6 +30,7 @@ from esphome.cpp_types import global_ns
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "select"
 IS_PLATFORM_COMPONENT = True
 
 select_ns = cg.esphome_ns.namespace("select")
diff --git a/esphome/components/sen0321/__init__.py b/esphome/components/sen0321/__init__.py
index 458ffa67f9..905618bfba 100644
--- a/esphome/components/sen0321/__init__.py
+++ b/esphome/components/sen0321/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@notjj"]
+DOMAIN = "sen0321"
diff --git a/esphome/components/sen21231/__init__.py b/esphome/components/sen21231/__init__.py
index e69de29bb2..c2802220f6 100644
--- a/esphome/components/sen21231/__init__.py
+++ b/esphome/components/sen21231/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sen21231"
diff --git a/esphome/components/sen5x/__init__.py b/esphome/components/sen5x/__init__.py
index e69de29bb2..e58c474fae 100644
--- a/esphome/components/sen5x/__init__.py
+++ b/esphome/components/sen5x/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sen5x"
diff --git a/esphome/components/sen6x/__init__.py b/esphome/components/sen6x/__init__.py
index e69de29bb2..abd5e7e50c 100644
--- a/esphome/components/sen6x/__init__.py
+++ b/esphome/components/sen6x/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sen6x"
diff --git a/esphome/components/senseair/__init__.py b/esphome/components/senseair/__init__.py
index e69de29bb2..5973c85b6a 100644
--- a/esphome/components/senseair/__init__.py
+++ b/esphome/components/senseair/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "senseair"
diff --git a/esphome/components/sensirion_common/__init__.py b/esphome/components/sensirion_common/__init__.py
index 5d9424d1e7..e1fc793d6d 100644
--- a/esphome/components/sensirion_common/__init__.py
+++ b/esphome/components/sensirion_common/__init__.py
@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import i2c
 
 CODEOWNERS = ["@martgras"]
+DOMAIN = "sensirion_common"
 
 sensirion_common_ns = cg.esphome_ns.namespace("sensirion_common")
 
diff --git a/esphome/components/sensor/__init__.py b/esphome/components/sensor/__init__.py
index f3293d4ed5..4a00904c4b 100644
--- a/esphome/components/sensor/__init__.py
+++ b/esphome/components/sensor/__init__.py
@@ -127,6 +127,7 @@ from esphome.types import ConfigType
 from esphome.util import Registry
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "sensor"
 
 DEVICE_CLASSES = [
     DEVICE_CLASS_ABSOLUTE_HUMIDITY,
diff --git a/esphome/components/servo/__init__.py b/esphome/components/servo/__init__.py
index 74acaa3496..44ec294765 100644
--- a/esphome/components/servo/__init__.py
+++ b/esphome/components/servo/__init__.py
@@ -19,6 +19,7 @@ servo_ns = cg.esphome_ns.namespace("servo")
 Servo = servo_ns.class_("Servo", cg.Component)
 
 CONF_AUTO_DETACH_TIME = "auto_detach_time"
+DOMAIN = "servo"
 MULTI_CONF = True
 CONFIG_SCHEMA = cv.Schema(
     {
diff --git a/esphome/components/sfa30/__init__.py b/esphome/components/sfa30/__init__.py
index 28b665906f..d608a07f79 100644
--- a/esphome/components/sfa30/__init__.py
+++ b/esphome/components/sfa30/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@ghsensdev"]
+DOMAIN = "sfa30"
diff --git a/esphome/components/sfa40/__init__.py b/esphome/components/sfa40/__init__.py
index 79568d458a..077f0d2e9f 100644
--- a/esphome/components/sfa40/__init__.py
+++ b/esphome/components/sfa40/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@NoQuarrel"]
+DOMAIN = "sfa40"
diff --git a/esphome/components/sgp30/__init__.py b/esphome/components/sgp30/__init__.py
index e69de29bb2..4754f35d59 100644
--- a/esphome/components/sgp30/__init__.py
+++ b/esphome/components/sgp30/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sgp30"
diff --git a/esphome/components/sgp40/__init__.py b/esphome/components/sgp40/__init__.py
index e69de29bb2..f18cc0d930 100644
--- a/esphome/components/sgp40/__init__.py
+++ b/esphome/components/sgp40/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sgp40"
diff --git a/esphome/components/sgp4x/__init__.py b/esphome/components/sgp4x/__init__.py
index e69de29bb2..f8030fdae0 100644
--- a/esphome/components/sgp4x/__init__.py
+++ b/esphome/components/sgp4x/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sgp4x"
diff --git a/esphome/components/sha256/__init__.py b/esphome/components/sha256/__init__.py
index 5db0e77b76..5856d230a2 100644
--- a/esphome/components/sha256/__init__.py
+++ b/esphome/components/sha256/__init__.py
@@ -5,6 +5,7 @@ from esphome.helpers import IS_MACOS
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "sha256"
 
 sha256_ns = cg.esphome_ns.namespace("sha256")
 
diff --git a/esphome/components/shelly_dimmer/__init__.py b/esphome/components/shelly_dimmer/__init__.py
index accefbbc34..72586d1637 100644
--- a/esphome/components/shelly_dimmer/__init__.py
+++ b/esphome/components/shelly_dimmer/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@rnauber", "@edge90"]
+DOMAIN = "shelly_dimmer"
diff --git a/esphome/components/sht3xd/__init__.py b/esphome/components/sht3xd/__init__.py
index e69de29bb2..f58b3fb150 100644
--- a/esphome/components/sht3xd/__init__.py
+++ b/esphome/components/sht3xd/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sht3xd"
diff --git a/esphome/components/sht4x/__init__.py b/esphome/components/sht4x/__init__.py
index e69de29bb2..2e9124bdab 100644
--- a/esphome/components/sht4x/__init__.py
+++ b/esphome/components/sht4x/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sht4x"
diff --git a/esphome/components/shtcx/__init__.py b/esphome/components/shtcx/__init__.py
index e69de29bb2..30c06bdaec 100644
--- a/esphome/components/shtcx/__init__.py
+++ b/esphome/components/shtcx/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "shtcx"
diff --git a/esphome/components/shutdown/__init__.py b/esphome/components/shutdown/__init__.py
index 480a6f3e31..949ea69bb9 100644
--- a/esphome/components/shutdown/__init__.py
+++ b/esphome/components/shutdown/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@esphome/core", "@jsuanet"]
+DOMAIN = "shutdown"
diff --git a/esphome/components/sigma_delta_output/__init__.py b/esphome/components/sigma_delta_output/__init__.py
index 3356e61bb2..2af211995b 100644
--- a/esphome/components/sigma_delta_output/__init__.py
+++ b/esphome/components/sigma_delta_output/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@Cat-Ion"]
+DOMAIN = "sigma_delta_output"
diff --git a/esphome/components/sim800l/__init__.py b/esphome/components/sim800l/__init__.py
index c472e01f83..e20c091b75 100644
--- a/esphome/components/sim800l/__init__.py
+++ b/esphome/components/sim800l/__init__.py
@@ -6,6 +6,7 @@ from esphome.const import CONF_ID, CONF_MESSAGE
 
 DEPENDENCIES = ["uart"]
 CODEOWNERS = ["@glmnet"]
+DOMAIN = "sim800l"
 MULTI_CONF = True
 
 sim800l_ns = cg.esphome_ns.namespace("sim800l")
diff --git a/esphome/components/slow_pwm/__init__.py b/esphome/components/slow_pwm/__init__.py
index e69de29bb2..c46da34e38 100644
--- a/esphome/components/slow_pwm/__init__.py
+++ b/esphome/components/slow_pwm/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "slow_pwm"
diff --git a/esphome/components/sm10bit_base/__init__.py b/esphome/components/sm10bit_base/__init__.py
index 2b555a59df..05ba98562d 100644
--- a/esphome/components/sm10bit_base/__init__.py
+++ b/esphome/components/sm10bit_base/__init__.py
@@ -6,6 +6,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@Cossid"]
+DOMAIN = "sm10bit_base"
 MULTI_CONF = True
 
 CONF_MAX_POWER_COLOR_CHANNELS = "max_power_color_channels"
diff --git a/esphome/components/sm16716/__init__.py b/esphome/components/sm16716/__init__.py
index 3fb9ac3f06..ae3c54ab7c 100644
--- a/esphome/components/sm16716/__init__.py
+++ b/esphome/components/sm16716/__init__.py
@@ -11,6 +11,7 @@ from esphome.const import (
 from esphome.types import ConfigType
 
 AUTO_LOAD = ["output"]
+DOMAIN = "sm16716"
 sm16716_ns = cg.esphome_ns.namespace("sm16716")
 SM16716 = sm16716_ns.class_("SM16716", cg.Component)
 
diff --git a/esphome/components/sm2135/__init__.py b/esphome/components/sm2135/__init__.py
index 537db5bbe4..c42ce4c8b3 100644
--- a/esphome/components/sm2135/__init__.py
+++ b/esphome/components/sm2135/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["output"]
 CODEOWNERS = ["@BoukeHaarsma23", "@matika77", "@dd32"]
+DOMAIN = "sm2135"
 
 sm2135_ns = cg.esphome_ns.namespace("sm2135")
 SM2135 = sm2135_ns.class_("SM2135", cg.Component)
diff --git a/esphome/components/sm2235/__init__.py b/esphome/components/sm2235/__init__.py
index 95037fd275..803cd54be5 100644
--- a/esphome/components/sm2235/__init__.py
+++ b/esphome/components/sm2235/__init__.py
@@ -5,6 +5,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["sm10bit_base", "output"]
 CODEOWNERS = ["@Cossid"]
+DOMAIN = "sm2235"
 MULTI_CONF = True
 
 sm2235_ns = cg.esphome_ns.namespace("sm2235")
diff --git a/esphome/components/sm2335/__init__.py b/esphome/components/sm2335/__init__.py
index 145c5a0117..a9fdfcef39 100644
--- a/esphome/components/sm2335/__init__.py
+++ b/esphome/components/sm2335/__init__.py
@@ -5,6 +5,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["sm10bit_base", "output"]
 CODEOWNERS = ["@Cossid"]
+DOMAIN = "sm2335"
 MULTI_CONF = True
 
 sm2335_ns = cg.esphome_ns.namespace("sm2335")
diff --git a/esphome/components/sm300d2/__init__.py b/esphome/components/sm300d2/__init__.py
index e69de29bb2..da0a0637ed 100644
--- a/esphome/components/sm300d2/__init__.py
+++ b/esphome/components/sm300d2/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sm300d2"
diff --git a/esphome/components/sml/__init__.py b/esphome/components/sml/__init__.py
index 07ca5bf444..35ca231f02 100644
--- a/esphome/components/sml/__init__.py
+++ b/esphome/components/sml/__init__.py
@@ -9,6 +9,7 @@ from esphome.const import CONF_ID, CONF_ON_DATA
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@alengwenus"]
+DOMAIN = "sml"
 
 DEPENDENCIES = ["uart"]
 
diff --git a/esphome/components/smt100/__init__.py b/esphome/components/smt100/__init__.py
index 44ed591400..572df68d99 100644
--- a/esphome/components/smt100/__init__.py
+++ b/esphome/components/smt100/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@piechade"]
+DOMAIN = "smt100"
diff --git a/esphome/components/sn74hc165/__init__.py b/esphome/components/sn74hc165/__init__.py
index 4f21312fec..af566cebda 100644
--- a/esphome/components/sn74hc165/__init__.py
+++ b/esphome/components/sn74hc165/__init__.py
@@ -15,6 +15,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@jesserockz"]
 DEPENDENCIES = []
+DOMAIN = "sn74hc165"
 MULTI_CONF = True
 
 sn74hc165_ns = cg.esphome_ns.namespace("sn74hc165")
diff --git a/esphome/components/sn74hc595/__init__.py b/esphome/components/sn74hc595/__init__.py
index 367b65176b..78ed703ed9 100644
--- a/esphome/components/sn74hc595/__init__.py
+++ b/esphome/components/sn74hc595/__init__.py
@@ -15,6 +15,7 @@ from esphome.const import (
 from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
+DOMAIN = "sn74hc595"
 MULTI_CONF = True
 
 sn74hc595_ns = cg.esphome_ns.namespace("sn74hc595")
diff --git a/esphome/components/sntp/__init__.py b/esphome/components/sntp/__init__.py
index e69de29bb2..481183e020 100644
--- a/esphome/components/sntp/__init__.py
+++ b/esphome/components/sntp/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sntp"
diff --git a/esphome/components/socket/__init__.py b/esphome/components/socket/__init__.py
index 3d2cd8ef50..cc5f672ad5 100644
--- a/esphome/components/socket/__init__.py
+++ b/esphome/components/socket/__init__.py
@@ -14,6 +14,7 @@ from esphome.types import ConfigType
 _LOGGER = logging.getLogger(__name__)
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "socket"
 
 socket_ns = cg.esphome_ns.namespace("socket")
 Ipv4AllowEntry = socket_ns.struct("Ipv4AllowEntry")
diff --git a/esphome/components/sonoff_d1/__init__.py b/esphome/components/sonoff_d1/__init__.py
index 18b4d30d18..40a6c103db 100644
--- a/esphome/components/sonoff_d1/__init__.py
+++ b/esphome/components/sonoff_d1/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@anatoly-savchenkov"]
+DOMAIN = "sonoff_d1"
diff --git a/esphome/components/sound_level/__init__.py b/esphome/components/sound_level/__init__.py
index e69de29bb2..93f0f4b2e3 100644
--- a/esphome/components/sound_level/__init__.py
+++ b/esphome/components/sound_level/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sound_level"
diff --git a/esphome/components/spa06_base/__init__.py b/esphome/components/spa06_base/__init__.py
index e084020a14..c08d92f9d8 100644
--- a/esphome/components/spa06_base/__init__.py
+++ b/esphome/components/spa06_base/__init__.py
@@ -19,6 +19,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@danielkent-net"]
+DOMAIN = "spa06_base"
 
 spa06_ns = cg.esphome_ns.namespace("spa06_base")
 
diff --git a/esphome/components/spa06_i2c/__init__.py b/esphome/components/spa06_i2c/__init__.py
index e69de29bb2..928c6c157b 100644
--- a/esphome/components/spa06_i2c/__init__.py
+++ b/esphome/components/spa06_i2c/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "spa06_i2c"
diff --git a/esphome/components/spa06_spi/__init__.py b/esphome/components/spa06_spi/__init__.py
index e69de29bb2..b473921999 100644
--- a/esphome/components/spa06_spi/__init__.py
+++ b/esphome/components/spa06_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "spa06_spi"
diff --git a/esphome/components/speaker/__init__.py b/esphome/components/speaker/__init__.py
index d0a743543e..d34cfc32c0 100644
--- a/esphome/components/speaker/__init__.py
+++ b/esphome/components/speaker/__init__.py
@@ -8,6 +8,7 @@ from esphome.coroutine import CoroPriority, coroutine_with_priority
 
 AUTO_LOAD = ["audio"]
 CODEOWNERS = ["@jesserockz", "@kahrendt"]
+DOMAIN = "speaker"
 
 IS_PLATFORM_COMPONENT = True
 
diff --git a/esphome/components/speaker_source/__init__.py b/esphome/components/speaker_source/__init__.py
index e69de29bb2..ebe19a4ead 100644
--- a/esphome/components/speaker_source/__init__.py
+++ b/esphome/components/speaker_source/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "speaker_source"
diff --git a/esphome/components/speed/__init__.py b/esphome/components/speed/__init__.py
index b75374863b..9f048ef37d 100644
--- a/esphome/components/speed/__init__.py
+++ b/esphome/components/speed/__init__.py
@@ -1,3 +1,5 @@
 import esphome.codegen as cg
 
+DOMAIN = "speed"
+
 speed_ns = cg.esphome_ns.namespace("speed")
diff --git a/esphome/components/spi/__init__.py b/esphome/components/spi/__init__.py
index dd2dce01c5..75408d2fd8 100644
--- a/esphome/components/spi/__init__.py
+++ b/esphome/components/spi/__init__.py
@@ -44,6 +44,7 @@ import esphome.final_validate as fv
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core", "@clydebarrow"]
+DOMAIN = "spi"
 spi_ns = cg.esphome_ns.namespace("spi")
 SPIComponent = spi_ns.class_("SPIComponent", cg.Component)
 QuadSPIComponent = spi_ns.class_("QuadSPIComponent", cg.Component)
diff --git a/esphome/components/spi_device/__init__.py b/esphome/components/spi_device/__init__.py
index bd2bfe6452..3f64dfc3d1 100644
--- a/esphome/components/spi_device/__init__.py
+++ b/esphome/components/spi_device/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 DEPENDENCIES = ["spi"]
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "spi_device"
 
 MULTI_CONF = True
 spi_device_ns = cg.esphome_ns.namespace("spi_device")
diff --git a/esphome/components/spi_led_strip/__init__.py b/esphome/components/spi_led_strip/__init__.py
index 850a1f6e02..2d856e1b10 100644
--- a/esphome/components/spi_led_strip/__init__.py
+++ b/esphome/components/spi_led_strip/__init__.py
@@ -1,2 +1,3 @@
 CODEOWNERS = ["@clydebarrow"]
 DEPENDENCIES = ["spi"]
+DOMAIN = "spi_led_strip"
diff --git a/esphome/components/split_buffer/__init__.py b/esphome/components/split_buffer/__init__.py
index be7472936f..e66c0c6efa 100644
--- a/esphome/components/split_buffer/__init__.py
+++ b/esphome/components/split_buffer/__init__.py
@@ -1,4 +1,5 @@
 CODEOWNERS = ["@jesserockz"]
+DOMAIN = "split_buffer"
 
 # Allows split_buffer to be configured in yaml, to allow use of the C++ api.
 
diff --git a/esphome/components/sprinkler/__init__.py b/esphome/components/sprinkler/__init__.py
index 00144adacd..fe096514d0 100644
--- a/esphome/components/sprinkler/__init__.py
+++ b/esphome/components/sprinkler/__init__.py
@@ -23,6 +23,7 @@ from esphome.helpers import docs_url
 
 AUTO_LOAD = ["number", "switch"]
 CODEOWNERS = ["@kbx81"]
+DOMAIN = "sprinkler"
 
 CONF_AUTO_ADVANCE_SWITCH = "auto_advance_switch"
 CONF_DIVIDER = "divider"
diff --git a/esphome/components/sps30/__init__.py b/esphome/components/sps30/__init__.py
index e69de29bb2..4b06a323ab 100644
--- a/esphome/components/sps30/__init__.py
+++ b/esphome/components/sps30/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sps30"
diff --git a/esphome/components/ssd1306_base/__init__.py b/esphome/components/ssd1306_base/__init__.py
index 26eda3b4ea..9577f9d4f7 100644
--- a/esphome/components/ssd1306_base/__init__.py
+++ b/esphome/components/ssd1306_base/__init__.py
@@ -18,6 +18,8 @@ from esphome.const import (
 from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
+DOMAIN = "ssd1306_base"
+
 ssd1306_base_ns = cg.esphome_ns.namespace("ssd1306_base")
 SSD1306 = ssd1306_base_ns.class_("SSD1306", cg.PollingComponent, display.DisplayBuffer)
 SSD1306Model = ssd1306_base_ns.enum("SSD1306Model")
diff --git a/esphome/components/ssd1306_i2c/__init__.py b/esphome/components/ssd1306_i2c/__init__.py
index e69de29bb2..9389c74a44 100644
--- a/esphome/components/ssd1306_i2c/__init__.py
+++ b/esphome/components/ssd1306_i2c/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ssd1306_i2c"
diff --git a/esphome/components/ssd1306_spi/__init__.py b/esphome/components/ssd1306_spi/__init__.py
index e69de29bb2..fc62e74a43 100644
--- a/esphome/components/ssd1306_spi/__init__.py
+++ b/esphome/components/ssd1306_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ssd1306_spi"
diff --git a/esphome/components/ssd1322_base/__init__.py b/esphome/components/ssd1322_base/__init__.py
index daa0345857..d66ae8d5c9 100644
--- a/esphome/components/ssd1322_base/__init__.py
+++ b/esphome/components/ssd1322_base/__init__.py
@@ -13,6 +13,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@kbx81"]
+DOMAIN = "ssd1322_base"
 
 ssd1322_base_ns = cg.esphome_ns.namespace("ssd1322_base")
 SSD1322 = ssd1322_base_ns.class_("SSD1322", cg.PollingComponent, display.DisplayBuffer)
diff --git a/esphome/components/ssd1322_spi/__init__.py b/esphome/components/ssd1322_spi/__init__.py
index e69de29bb2..52b9de59b2 100644
--- a/esphome/components/ssd1322_spi/__init__.py
+++ b/esphome/components/ssd1322_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ssd1322_spi"
diff --git a/esphome/components/ssd1325_base/__init__.py b/esphome/components/ssd1325_base/__init__.py
index e48a821825..fbbf329d53 100644
--- a/esphome/components/ssd1325_base/__init__.py
+++ b/esphome/components/ssd1325_base/__init__.py
@@ -13,6 +13,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@kbx81"]
+DOMAIN = "ssd1325_base"
 
 ssd1325_base_ns = cg.esphome_ns.namespace("ssd1325_base")
 SSD1325 = ssd1325_base_ns.class_("SSD1325", cg.PollingComponent, display.DisplayBuffer)
diff --git a/esphome/components/ssd1325_spi/__init__.py b/esphome/components/ssd1325_spi/__init__.py
index e69de29bb2..218baca080 100644
--- a/esphome/components/ssd1325_spi/__init__.py
+++ b/esphome/components/ssd1325_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ssd1325_spi"
diff --git a/esphome/components/ssd1327_base/__init__.py b/esphome/components/ssd1327_base/__init__.py
index 462f197696..2c9c0faf3b 100644
--- a/esphome/components/ssd1327_base/__init__.py
+++ b/esphome/components/ssd1327_base/__init__.py
@@ -7,6 +7,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@kbx81"]
+DOMAIN = "ssd1327_base"
 
 ssd1327_base_ns = cg.esphome_ns.namespace("ssd1327_base")
 SSD1327 = ssd1327_base_ns.class_("SSD1327", cg.PollingComponent, display.DisplayBuffer)
diff --git a/esphome/components/ssd1327_i2c/__init__.py b/esphome/components/ssd1327_i2c/__init__.py
index e69de29bb2..b093087fa1 100644
--- a/esphome/components/ssd1327_i2c/__init__.py
+++ b/esphome/components/ssd1327_i2c/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ssd1327_i2c"
diff --git a/esphome/components/ssd1327_spi/__init__.py b/esphome/components/ssd1327_spi/__init__.py
index e69de29bb2..f95fe10579 100644
--- a/esphome/components/ssd1327_spi/__init__.py
+++ b/esphome/components/ssd1327_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ssd1327_spi"
diff --git a/esphome/components/ssd1331_base/__init__.py b/esphome/components/ssd1331_base/__init__.py
index d1c0b585f8..2345acdf65 100644
--- a/esphome/components/ssd1331_base/__init__.py
+++ b/esphome/components/ssd1331_base/__init__.py
@@ -7,6 +7,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@kbx81"]
+DOMAIN = "ssd1331_base"
 
 ssd1331_base_ns = cg.esphome_ns.namespace("ssd1331_base")
 SSD1331 = ssd1331_base_ns.class_("SSD1331", cg.PollingComponent, display.DisplayBuffer)
diff --git a/esphome/components/ssd1331_spi/__init__.py b/esphome/components/ssd1331_spi/__init__.py
index e69de29bb2..4e37ffcaba 100644
--- a/esphome/components/ssd1331_spi/__init__.py
+++ b/esphome/components/ssd1331_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ssd1331_spi"
diff --git a/esphome/components/ssd1351_base/__init__.py b/esphome/components/ssd1351_base/__init__.py
index a516b4d951..f693004d63 100644
--- a/esphome/components/ssd1351_base/__init__.py
+++ b/esphome/components/ssd1351_base/__init__.py
@@ -7,6 +7,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@kbx81"]
+DOMAIN = "ssd1351_base"
 
 ssd1351_base_ns = cg.esphome_ns.namespace("ssd1351_base")
 SSD1351 = ssd1351_base_ns.class_("SSD1351", cg.PollingComponent, display.DisplayBuffer)
diff --git a/esphome/components/ssd1351_spi/__init__.py b/esphome/components/ssd1351_spi/__init__.py
index e69de29bb2..0cb07c8b5e 100644
--- a/esphome/components/ssd1351_spi/__init__.py
+++ b/esphome/components/ssd1351_spi/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "ssd1351_spi"
diff --git a/esphome/components/st7123/__init__.py b/esphome/components/st7123/__init__.py
index 335bc238be..6e3a763eb4 100644
--- a/esphome/components/st7123/__init__.py
+++ b/esphome/components/st7123/__init__.py
@@ -2,5 +2,6 @@ import esphome.codegen as cg
 
 CODEOWNERS = ["@miniskipper"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "st7123"
 
 st7123_ns = cg.esphome_ns.namespace("st7123")
diff --git a/esphome/components/st7567_base/__init__.py b/esphome/components/st7567_base/__init__.py
index 51225c5023..8fdc0a7f7a 100644
--- a/esphome/components/st7567_base/__init__.py
+++ b/esphome/components/st7567_base/__init__.py
@@ -14,6 +14,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@latonita"]
+DOMAIN = "st7567_base"
 
 st7567_base_ns = cg.esphome_ns.namespace("st7567_base")
 ST7567 = st7567_base_ns.class_("ST7567", cg.PollingComponent, display.DisplayBuffer)
diff --git a/esphome/components/st7567_i2c/__init__.py b/esphome/components/st7567_i2c/__init__.py
index dd06cfffea..3c54c70741 100644
--- a/esphome/components/st7567_i2c/__init__.py
+++ b/esphome/components/st7567_i2c/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@latonita"]
+DOMAIN = "st7567_i2c"
diff --git a/esphome/components/st7567_spi/__init__.py b/esphome/components/st7567_spi/__init__.py
index dd06cfffea..ed60104857 100644
--- a/esphome/components/st7567_spi/__init__.py
+++ b/esphome/components/st7567_spi/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@latonita"]
+DOMAIN = "st7567_spi"
diff --git a/esphome/components/st7701s/__init__.py b/esphome/components/st7701s/__init__.py
index c58ce8a01e..812c6caa8f 100644
--- a/esphome/components/st7701s/__init__.py
+++ b/esphome/components/st7701s/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "st7701s"
diff --git a/esphome/components/st7735/__init__.py b/esphome/components/st7735/__init__.py
index 62dfa6f413..176eb233e1 100644
--- a/esphome/components/st7735/__init__.py
+++ b/esphome/components/st7735/__init__.py
@@ -1,5 +1,7 @@
 import esphome.codegen as cg
 
+DOMAIN = "st7735"
+
 st7735_ns = cg.esphome_ns.namespace("st7735")
 
 DEPRECATED_COMPONENT = """
diff --git a/esphome/components/st7789v/__init__.py b/esphome/components/st7789v/__init__.py
index 7915cf119c..e67f480912 100644
--- a/esphome/components/st7789v/__init__.py
+++ b/esphome/components/st7789v/__init__.py
@@ -1,5 +1,7 @@
 import esphome.codegen as cg
 
+DOMAIN = "st7789v"
+
 st7789v_ns = cg.esphome_ns.namespace("st7789v")
 
 DEPRECATED_COMPONENT = """
diff --git a/esphome/components/st7920/__init__.py b/esphome/components/st7920/__init__.py
index e69de29bb2..a1512e4e57 100644
--- a/esphome/components/st7920/__init__.py
+++ b/esphome/components/st7920/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "st7920"
diff --git a/esphome/components/statsd/__init__.py b/esphome/components/statsd/__init__.py
index 58d4be97fa..16df864082 100644
--- a/esphome/components/statsd/__init__.py
+++ b/esphome/components/statsd/__init__.py
@@ -14,6 +14,7 @@ from esphome.types import ConfigType
 AUTO_LOAD = ["socket"]
 CODEOWNERS = ["@Links2004"]
 DEPENDENCIES = ["network"]
+DOMAIN = "statsd"
 
 CONF_PREFIX = "prefix"
 
diff --git a/esphome/components/status/__init__.py b/esphome/components/status/__init__.py
index e69de29bb2..dee924f6cf 100644
--- a/esphome/components/status/__init__.py
+++ b/esphome/components/status/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "status"
diff --git a/esphome/components/status_led/__init__.py b/esphome/components/status_led/__init__.py
index 700296c0df..8bd98c0ef8 100644
--- a/esphome/components/status_led/__init__.py
+++ b/esphome/components/status_led/__init__.py
@@ -5,6 +5,8 @@ from esphome.const import CONF_ID, CONF_PIN
 from esphome.core import CoroPriority, coroutine_with_priority
 from esphome.types import ConfigType
 
+DOMAIN = "status_led"
+
 status_led_ns = cg.esphome_ns.namespace("status_led")
 StatusLED = status_led_ns.class_("StatusLED", cg.Component)
 
diff --git a/esphome/components/stcc4/__init__.py b/esphome/components/stcc4/__init__.py
index e69de29bb2..d0f16805b8 100644
--- a/esphome/components/stcc4/__init__.py
+++ b/esphome/components/stcc4/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "stcc4"
diff --git a/esphome/components/stepper/__init__.py b/esphome/components/stepper/__init__.py
index 017fd95cd8..f5c1a30433 100644
--- a/esphome/components/stepper/__init__.py
+++ b/esphome/components/stepper/__init__.py
@@ -16,6 +16,7 @@ from esphome.const import (
 from esphome.core import CORE, CoroPriority, coroutine_with_priority
 from esphome.types import SafeExpType
 
+DOMAIN = "stepper"
 IS_PLATFORM_COMPONENT = True
 
 stepper_ns = cg.esphome_ns.namespace("stepper")
diff --git a/esphome/components/sts3x/__init__.py b/esphome/components/sts3x/__init__.py
index e69de29bb2..d7d6491925 100644
--- a/esphome/components/sts3x/__init__.py
+++ b/esphome/components/sts3x/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "sts3x"
diff --git a/esphome/components/stts22h/__init__.py b/esphome/components/stts22h/__init__.py
index a33c0b554b..15a864ef0c 100644
--- a/esphome/components/stts22h/__init__.py
+++ b/esphome/components/stts22h/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@B48D81EFCC"]
+DOMAIN = "stts22h"
diff --git a/esphome/components/substitutions/__init__.py b/esphome/components/substitutions/__init__.py
index d59f39b9c2..845240dcff 100644
--- a/esphome/components/substitutions/__init__.py
+++ b/esphome/components/substitutions/__init__.py
@@ -25,6 +25,7 @@ from esphome.yaml_util import (
 from .jinja import Jinja, JinjaError, Missing, Resolver, UndefinedError, has_jinja
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "substitutions"
 _LOGGER = logging.getLogger(__name__)
 
 ContextVars = ChainMap[str, Any]
diff --git a/esphome/components/sun/__init__.py b/esphome/components/sun/__init__.py
index 73ddefe972..71441e9782 100644
--- a/esphome/components/sun/__init__.py
+++ b/esphome/components/sun/__init__.py
@@ -16,6 +16,7 @@ from esphome.const import (
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@OttoWinter"]
+DOMAIN = "sun"
 sun_ns = cg.esphome_ns.namespace("sun")
 
 Sun = sun_ns.class_("Sun")
diff --git a/esphome/components/sun_gtil2/__init__.py b/esphome/components/sun_gtil2/__init__.py
index 0f5ae27753..61643cf488 100644
--- a/esphome/components/sun_gtil2/__init__.py
+++ b/esphome/components/sun_gtil2/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@Mat931"]
+DOMAIN = "sun_gtil2"
 MULTI_CONF = True
 DEPENDENCIES = ["uart"]
 
diff --git a/esphome/components/switch/__init__.py b/esphome/components/switch/__init__.py
index c34a73a36d..e965b552f4 100644
--- a/esphome/components/switch/__init__.py
+++ b/esphome/components/switch/__init__.py
@@ -32,6 +32,7 @@ from esphome.cpp_generator import MockObj, MockObjClass
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "switch"
 IS_PLATFORM_COMPONENT = True
 DEVICE_CLASSES = [
     DEVICE_CLASS_EMPTY,
diff --git a/esphome/components/sx126x/__init__.py b/esphome/components/sx126x/__init__.py
index 63c3711b10..c8b920d6cb 100644
--- a/esphome/components/sx126x/__init__.py
+++ b/esphome/components/sx126x/__init__.py
@@ -10,6 +10,7 @@ from esphome.core import ID, TimePeriod
 from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType, TemplateArgsType
 
+DOMAIN = "sx126x"
 MULTI_CONF = True
 CODEOWNERS = ["@swoboda1337"]
 DEPENDENCIES = ["spi"]
diff --git a/esphome/components/sx127x/__init__.py b/esphome/components/sx127x/__init__.py
index 68c56cdff4..ea7fe38ba3 100644
--- a/esphome/components/sx127x/__init__.py
+++ b/esphome/components/sx127x/__init__.py
@@ -10,6 +10,7 @@ from esphome.core import ID
 from esphome.cpp_generator import MockObj, TemplateArgsType
 from esphome.types import ConfigType
 
+DOMAIN = "sx127x"
 MULTI_CONF = True
 CODEOWNERS = ["@swoboda1337"]
 DEPENDENCIES = ["spi"]
diff --git a/esphome/components/sx1509/__init__.py b/esphome/components/sx1509/__init__.py
index 942911c7fe..f96479498d 100644
--- a/esphome/components/sx1509/__init__.py
+++ b/esphome/components/sx1509/__init__.py
@@ -29,6 +29,7 @@ CONF_SX1509_ID = "sx1509_id"
 
 AUTO_LOAD = ["key_provider", "gpio_expander"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "sx1509"
 MULTI_CONF = True
 
 sx1509_ns = cg.esphome_ns.namespace("sx1509")
diff --git a/esphome/components/sy6970/__init__.py b/esphome/components/sy6970/__init__.py
index cb9d64aee7..90bd9f4691 100644
--- a/esphome/components/sy6970/__init__.py
+++ b/esphome/components/sy6970/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@linkedupbits"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "sy6970"
 MULTI_CONF = True
 
 CONF_SY6970_ID = "sy6970_id"
diff --git a/esphome/components/syslog/__init__.py b/esphome/components/syslog/__init__.py
index e25567c783..b48192ddd2 100644
--- a/esphome/components/syslog/__init__.py
+++ b/esphome/components/syslog/__init__.py
@@ -9,6 +9,7 @@ from esphome.cpp_types import Component, Parented
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "syslog"
 
 DEPENDENCIES = ["udp", "logger", "time"]
 
diff --git a/esphome/components/systa_bus/__init__.py b/esphome/components/systa_bus/__init__.py
index 0695b43d41..49ac214d40 100644
--- a/esphome/components/systa_bus/__init__.py
+++ b/esphome/components/systa_bus/__init__.py
@@ -6,6 +6,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@Mat931"]
+DOMAIN = "systa_bus"
 
 DEPENDENCIES = ["uart"]
 
diff --git a/esphome/components/t6615/__init__.py b/esphome/components/t6615/__init__.py
index e69de29bb2..bbbca72b13 100644
--- a/esphome/components/t6615/__init__.py
+++ b/esphome/components/t6615/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "t6615"
diff --git a/esphome/components/tas2780/__init__.py b/esphome/components/tas2780/__init__.py
index 81e00ca74b..f1fed4b698 100644
--- a/esphome/components/tas2780/__init__.py
+++ b/esphome/components/tas2780/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@remcom"]
+DOMAIN = "tas2780"
diff --git a/esphome/components/tas58xx/__init__.py b/esphome/components/tas58xx/__init__.py
index 0931d7ba1f..56700aeafd 100644
--- a/esphome/components/tas58xx/__init__.py
+++ b/esphome/components/tas58xx/__init__.py
@@ -1,6 +1,7 @@
 from esphome.config_helpers import filter_source_files_from_defines
 
 CODEOWNERS = ["@mrtoy-me", "@remcom"]
+DOMAIN = "tas58xx"
 
 FILTER_SOURCE_FILES = filter_source_files_from_defines(
     {
diff --git a/esphome/components/tc74/__init__.py b/esphome/components/tc74/__init__.py
index c1407c7cad..1021a425b8 100644
--- a/esphome/components/tc74/__init__.py
+++ b/esphome/components/tc74/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@sethgirvan"]
+DOMAIN = "tc74"
diff --git a/esphome/components/tca9548a/__init__.py b/esphome/components/tca9548a/__init__.py
index 381b84cad6..a1945e97c5 100644
--- a/esphome/components/tca9548a/__init__.py
+++ b/esphome/components/tca9548a/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_CHANNEL, CONF_CHANNELS, CONF_ID
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@andreashergert1984"]
+DOMAIN = "tca9548a"
 
 DEPENDENCIES = ["i2c"]
 
diff --git a/esphome/components/tca9555/__init__.py b/esphome/components/tca9555/__init__.py
index 6ae1afc883..a039872e16 100644
--- a/esphome/components/tca9555/__init__.py
+++ b/esphome/components/tca9555/__init__.py
@@ -15,6 +15,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@mobrembski"]
+DOMAIN = "tca9555"
 
 AUTO_LOAD = ["gpio_expander"]
 DEPENDENCIES = ["i2c"]
diff --git a/esphome/components/tcl112/__init__.py b/esphome/components/tcl112/__init__.py
index e69de29bb2..03f3908817 100644
--- a/esphome/components/tcl112/__init__.py
+++ b/esphome/components/tcl112/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "tcl112"
diff --git a/esphome/components/tcp_uart/__init__.py b/esphome/components/tcp_uart/__init__.py
index 796a9fc48d..35326d77d5 100644
--- a/esphome/components/tcp_uart/__init__.py
+++ b/esphome/components/tcp_uart/__init__.py
@@ -24,6 +24,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@Bascht74"]
 DEPENDENCIES = ["network"]
 AUTO_LOAD = ["uart", "binary_sensor", "sensor", "socket"]
+DOMAIN = "tcp_uart"
 MULTI_CONF = True
 
 CONF_DISCONNECTS = "disconnects"
diff --git a/esphome/components/tcs34725/__init__.py b/esphome/components/tcs34725/__init__.py
index e69de29bb2..cf99348a86 100644
--- a/esphome/components/tcs34725/__init__.py
+++ b/esphome/components/tcs34725/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "tcs34725"
diff --git a/esphome/components/tee501/__init__.py b/esphome/components/tee501/__init__.py
index e69de29bb2..d3790674e2 100644
--- a/esphome/components/tee501/__init__.py
+++ b/esphome/components/tee501/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "tee501"
diff --git a/esphome/components/teleinfo/__init__.py b/esphome/components/teleinfo/__init__.py
index 67aad11d0f..8caf020212 100644
--- a/esphome/components/teleinfo/__init__.py
+++ b/esphome/components/teleinfo/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@0hax"]
+DOMAIN = "teleinfo"
 MULTI_CONF = True
 
 teleinfo_ns = cg.esphome_ns.namespace("teleinfo")
diff --git a/esphome/components/tem3200/__init__.py b/esphome/components/tem3200/__init__.py
index e69de29bb2..728db67d54 100644
--- a/esphome/components/tem3200/__init__.py
+++ b/esphome/components/tem3200/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "tem3200"
diff --git a/esphome/components/template/__init__.py b/esphome/components/template/__init__.py
index 6253af9090..542e78809c 100644
--- a/esphome/components/template/__init__.py
+++ b/esphome/components/template/__init__.py
@@ -1,3 +1,5 @@
 import esphome.codegen as cg
 
+DOMAIN = "template"
+
 template_ns = cg.esphome_ns.namespace("template_")
diff --git a/esphome/components/text/__init__.py b/esphome/components/text/__init__.py
index 2f82f19ff5..fbbc09bd2d 100644
--- a/esphome/components/text/__init__.py
+++ b/esphome/components/text/__init__.py
@@ -23,6 +23,7 @@ from esphome.cpp_generator import MockObj, MockObjClass
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@mauritskorse"]
+DOMAIN = "text"
 IS_PLATFORM_COMPONENT = True
 
 text_ns = cg.esphome_ns.namespace("text")
diff --git a/esphome/components/text_sensor/__init__.py b/esphome/components/text_sensor/__init__.py
index 08870db64a..e9c70f7a2e 100644
--- a/esphome/components/text_sensor/__init__.py
+++ b/esphome/components/text_sensor/__init__.py
@@ -39,6 +39,7 @@ DEVICE_CLASSES = [
 ]
 
 
+DOMAIN = "text_sensor"
 IS_PLATFORM_COMPONENT = True
 
 text_sensor_ns = cg.esphome_ns.namespace("text_sensor")
diff --git a/esphome/components/tfluna/__init__.py b/esphome/components/tfluna/__init__.py
index 6ba821b1ab..6914894ba7 100644
--- a/esphome/components/tfluna/__init__.py
+++ b/esphome/components/tfluna/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@candrews"]
 DEPENDENCIES = ["i2c"]
+DOMAIN = "tfluna"
 MULTI_CONF = True
 
 tfluna_ns = cg.esphome_ns.namespace("tfluna")
diff --git a/esphome/components/thermopro_ble/__init__.py b/esphome/components/thermopro_ble/__init__.py
index e69de29bb2..f2f59ccbc2 100644
--- a/esphome/components/thermopro_ble/__init__.py
+++ b/esphome/components/thermopro_ble/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "thermopro_ble"
diff --git a/esphome/components/thermostat/__init__.py b/esphome/components/thermostat/__init__.py
index e69de29bb2..7bed41dc56 100644
--- a/esphome/components/thermostat/__init__.py
+++ b/esphome/components/thermostat/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "thermostat"
diff --git a/esphome/components/time_based/__init__.py b/esphome/components/time_based/__init__.py
index ce2f453bda..39ec2d9a8d 100644
--- a/esphome/components/time_based/__init__.py
+++ b/esphome/components/time_based/__init__.py
@@ -1,3 +1,5 @@
 import esphome.codegen as cg
 
+DOMAIN = "time_based"
+
 time_based_ns = cg.esphome_ns.namespace("time_based")
diff --git a/esphome/components/tinyusb/__init__.py b/esphome/components/tinyusb/__init__.py
index 1b819088ca..66c43aef26 100644
--- a/esphome/components/tinyusb/__init__.py
+++ b/esphome/components/tinyusb/__init__.py
@@ -16,6 +16,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@kbx81"]
 CONFLICTS_WITH = ["usb_host"]
+DOMAIN = "tinyusb"
 
 CONF_ON_MOUNT = "on_mount"
 CONF_ON_UNMOUNT = "on_unmount"
diff --git a/esphome/components/tlc59208f/__init__.py b/esphome/components/tlc59208f/__init__.py
index 1af9f66b95..5d719e40ba 100644
--- a/esphome/components/tlc59208f/__init__.py
+++ b/esphome/components/tlc59208f/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID
 from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
+DOMAIN = "tlc59208f"
 MULTI_CONF = True
 
 tlc59208f_ns = cg.esphome_ns.namespace("tlc59208f")
diff --git a/esphome/components/tlc5947/__init__.py b/esphome/components/tlc5947/__init__.py
index 05e2ef037d..71247dd13e 100644
--- a/esphome/components/tlc5947/__init__.py
+++ b/esphome/components/tlc5947/__init__.py
@@ -16,6 +16,7 @@ from esphome.types import ConfigType
 CONF_LAT_PIN = "lat_pin"
 
 CODEOWNERS = ["@rnauber"]
+DOMAIN = "tlc5947"
 
 tlc5947_ns = cg.esphome_ns.namespace("tlc5947")
 TLC5947 = tlc5947_ns.class_("TLC5947", cg.Component)
diff --git a/esphome/components/tlc5971/__init__.py b/esphome/components/tlc5971/__init__.py
index 5b9027e61a..26beec280e 100644
--- a/esphome/components/tlc5971/__init__.py
+++ b/esphome/components/tlc5971/__init__.py
@@ -8,6 +8,7 @@ from esphome.const import CONF_CLOCK_PIN, CONF_DATA_PIN, CONF_ID, CONF_NUM_CHIPS
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@IJIJI"]
+DOMAIN = "tlc5971"
 
 tlc5971_ns = cg.esphome_ns.namespace("tlc5971")
 TLC5971 = tlc5971_ns.class_("TLC5971", cg.Component)
diff --git a/esphome/components/tm1621/__init__.py b/esphome/components/tm1621/__init__.py
index 2e88d4f366..1b78f353ca 100644
--- a/esphome/components/tm1621/__init__.py
+++ b/esphome/components/tm1621/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@Philippe12"]
+DOMAIN = "tm1621"
diff --git a/esphome/components/tm1637/__init__.py b/esphome/components/tm1637/__init__.py
index e69de29bb2..c8b08abf03 100644
--- a/esphome/components/tm1637/__init__.py
+++ b/esphome/components/tm1637/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "tm1637"
diff --git a/esphome/components/tm1638/__init__.py b/esphome/components/tm1638/__init__.py
index e69de29bb2..4500a10ff4 100644
--- a/esphome/components/tm1638/__init__.py
+++ b/esphome/components/tm1638/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "tm1638"
diff --git a/esphome/components/tm1651/__init__.py b/esphome/components/tm1651/__init__.py
index dfe475f7f2..14aa1c8842 100644
--- a/esphome/components/tm1651/__init__.py
+++ b/esphome/components/tm1651/__init__.py
@@ -12,6 +12,7 @@ from esphome.const import (
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@mrtoy-me"]
+DOMAIN = "tm1651"
 
 CONF_LEVEL_PERCENT = "level_percent"
 
diff --git a/esphome/components/tmp102/__init__.py b/esphome/components/tmp102/__init__.py
index 3e32a230f2..8510f18769 100644
--- a/esphome/components/tmp102/__init__.py
+++ b/esphome/components/tmp102/__init__.py
@@ -7,3 +7,5 @@ reading temperatures to a resolution of 0.0625°C.
 https://www.sparkfun.com/datasheets/Sensors/Temperature/tmp102.pdf
 
 """
+
+DOMAIN = "tmp102"
diff --git a/esphome/components/tmp1075/__init__.py b/esphome/components/tmp1075/__init__.py
index ddd04ad11a..81c0e50033 100644
--- a/esphome/components/tmp1075/__init__.py
+++ b/esphome/components/tmp1075/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@sybrenstuvel"]
+DOMAIN = "tmp1075"
diff --git a/esphome/components/tmp117/__init__.py b/esphome/components/tmp117/__init__.py
index e69de29bb2..e7429bd52e 100644
--- a/esphome/components/tmp117/__init__.py
+++ b/esphome/components/tmp117/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "tmp117"
diff --git a/esphome/components/tof10120/__init__.py b/esphome/components/tof10120/__init__.py
index e69de29bb2..89b7cffed4 100644
--- a/esphome/components/tof10120/__init__.py
+++ b/esphome/components/tof10120/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "tof10120"
diff --git a/esphome/components/tormatic/__init__.py b/esphome/components/tormatic/__init__.py
index 7f3f05a3cd..e26792c1d3 100644
--- a/esphome/components/tormatic/__init__.py
+++ b/esphome/components/tormatic/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@ti-mo"]
+DOMAIN = "tormatic"
diff --git a/esphome/components/toshiba/__init__.py b/esphome/components/toshiba/__init__.py
index e69de29bb2..1e5ec1fc27 100644
--- a/esphome/components/toshiba/__init__.py
+++ b/esphome/components/toshiba/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "toshiba"
diff --git a/esphome/components/total_daily_energy/__init__.py b/esphome/components/total_daily_energy/__init__.py
index e69de29bb2..d3880a5084 100644
--- a/esphome/components/total_daily_energy/__init__.py
+++ b/esphome/components/total_daily_energy/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "total_daily_energy"
diff --git a/esphome/components/touchscreen/__init__.py b/esphome/components/touchscreen/__init__.py
index c8b918007b..7a23d14069 100644
--- a/esphome/components/touchscreen/__init__.py
+++ b/esphome/components/touchscreen/__init__.py
@@ -23,6 +23,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@jesserockz", "@nielsnl68"]
 DEPENDENCIES = ["display"]
+DOMAIN = "touchscreen"
 
 IS_PLATFORM_COMPONENT = True
 
diff --git a/esphome/components/tsl2561/__init__.py b/esphome/components/tsl2561/__init__.py
index e69de29bb2..9986b7fd3e 100644
--- a/esphome/components/tsl2561/__init__.py
+++ b/esphome/components/tsl2561/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "tsl2561"
diff --git a/esphome/components/tsl2591/__init__.py b/esphome/components/tsl2591/__init__.py
index 63331641c5..c611ad0ebd 100644
--- a/esphome/components/tsl2591/__init__.py
+++ b/esphome/components/tsl2591/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@wjcarpenter"]
+DOMAIN = "tsl2591"
diff --git a/esphome/components/tt21100/__init__.py b/esphome/components/tt21100/__init__.py
index a309d34beb..a8f0ec0dd3 100644
--- a/esphome/components/tt21100/__init__.py
+++ b/esphome/components/tt21100/__init__.py
@@ -1,5 +1,6 @@
 import esphome.codegen as cg
 
 CODEOWNERS = ["@kroimon"]
+DOMAIN = "tt21100"
 
 tt21100_ns = cg.esphome_ns.namespace("tt21100")
diff --git a/esphome/components/ttp229_bsf/__init__.py b/esphome/components/ttp229_bsf/__init__.py
index 9e2a4ad114..1b10940570 100644
--- a/esphome/components/ttp229_bsf/__init__.py
+++ b/esphome/components/ttp229_bsf/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID, CONF_SCL_PIN, CONF_SDO_PIN
 from esphome.types import ConfigType
 
 AUTO_LOAD = ["binary_sensor"]
+DOMAIN = "ttp229_bsf"
 
 CONF_TTP229_ID = "ttp229_id"
 ttp229_bsf_ns = cg.esphome_ns.namespace("ttp229_bsf")
diff --git a/esphome/components/ttp229_lsf/__init__.py b/esphome/components/ttp229_lsf/__init__.py
index d32f72fcce..e89b177a3e 100644
--- a/esphome/components/ttp229_lsf/__init__.py
+++ b/esphome/components/ttp229_lsf/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 AUTO_LOAD = ["binary_sensor"]
+DOMAIN = "ttp229_lsf"
 
 CONF_TTP229_ID = "ttp229_id"
 ttp229_lsf_ns = cg.esphome_ns.namespace("ttp229_lsf")
diff --git a/esphome/components/tuya/__init__.py b/esphome/components/tuya/__init__.py
index 2cc60e225c..6957b57e0e 100644
--- a/esphome/components/tuya/__init__.py
+++ b/esphome/components/tuya/__init__.py
@@ -5,6 +5,7 @@ import esphome.config_validation as cv
 from esphome.const import CONF_ID, CONF_SENSOR_DATAPOINT, CONF_TIME_ID, CONF_TRIGGER_ID
 
 DEPENDENCIES = ["uart"]
+DOMAIN = "tuya"
 
 CONF_IGNORE_MCU_UPDATE_ON_DATAPOINTS = "ignore_mcu_update_on_datapoints"
 
diff --git a/esphome/components/tx20/__init__.py b/esphome/components/tx20/__init__.py
index e69de29bb2..83dbfc84f6 100644
--- a/esphome/components/tx20/__init__.py
+++ b/esphome/components/tx20/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "tx20"
diff --git a/esphome/components/udp/__init__.py b/esphome/components/udp/__init__.py
index cd3cb44ae1..81149f056b 100644
--- a/esphome/components/udp/__init__.py
+++ b/esphome/components/udp/__init__.py
@@ -21,6 +21,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@clydebarrow"]
 DEPENDENCIES = ["network"]
 AUTO_LOAD = ["socket"]
+DOMAIN = "udp"
 
 MULTI_CONF = True
 udp_ns = cg.esphome_ns.namespace("udp")
diff --git a/esphome/components/ufire_ec/__init__.py b/esphome/components/ufire_ec/__init__.py
index 08f36c7934..e5461b4ff7 100644
--- a/esphome/components/ufire_ec/__init__.py
+++ b/esphome/components/ufire_ec/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@pvizeli"]
+DOMAIN = "ufire_ec"
diff --git a/esphome/components/ufire_ise/__init__.py b/esphome/components/ufire_ise/__init__.py
index 08f36c7934..9fb4cb9c65 100644
--- a/esphome/components/ufire_ise/__init__.py
+++ b/esphome/components/ufire_ise/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@pvizeli"]
+DOMAIN = "ufire_ise"
diff --git a/esphome/components/ufm01/__init__.py b/esphome/components/ufm01/__init__.py
index 85ca0eecae..e1fcef107d 100644
--- a/esphome/components/ufm01/__init__.py
+++ b/esphome/components/ufm01/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@ljungqvist"]
+DOMAIN = "ufm01"
 
 MULTI_CONF = True
 
diff --git a/esphome/components/uln2003/__init__.py b/esphome/components/uln2003/__init__.py
index e69de29bb2..6f2260af57 100644
--- a/esphome/components/uln2003/__init__.py
+++ b/esphome/components/uln2003/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "uln2003"
diff --git a/esphome/components/ultrasonic/__init__.py b/esphome/components/ultrasonic/__init__.py
index 3bca12bffc..cdc67e7813 100644
--- a/esphome/components/ultrasonic/__init__.py
+++ b/esphome/components/ultrasonic/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@swoboda1337", "@ssieb"]
+DOMAIN = "ultrasonic"
diff --git a/esphome/components/unicode/__init__.py b/esphome/components/unicode/__init__.py
index f70ffa9520..c5464cbe6c 100644
--- a/esphome/components/unicode/__init__.py
+++ b/esphome/components/unicode/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "unicode"
diff --git a/esphome/components/update/__init__.py b/esphome/components/update/__init__.py
index 1533a893ba..e455a4f768 100644
--- a/esphome/components/update/__init__.py
+++ b/esphome/components/update/__init__.py
@@ -25,6 +25,7 @@ from esphome.cpp_generator import MockObj, MockObjClass
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@jesserockz"]
+DOMAIN = "update"
 IS_PLATFORM_COMPONENT = True
 
 update_ns = cg.esphome_ns.namespace("update")
diff --git a/esphome/components/uponor_smatrix/__init__.py b/esphome/components/uponor_smatrix/__init__.py
index ba686dc22a..5dc32259ea 100644
--- a/esphome/components/uponor_smatrix/__init__.py
+++ b/esphome/components/uponor_smatrix/__init__.py
@@ -6,6 +6,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@kroimon"]
+DOMAIN = "uponor_smatrix"
 
 DEPENDENCIES = ["uart"]
 
diff --git a/esphome/components/uptime/__init__.py b/esphome/components/uptime/__init__.py
index e69de29bb2..74eb20c656 100644
--- a/esphome/components/uptime/__init__.py
+++ b/esphome/components/uptime/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "uptime"
diff --git a/esphome/components/usb_cdc_acm/__init__.py b/esphome/components/usb_cdc_acm/__init__.py
index 8cd078ab49..e49531c80b 100644
--- a/esphome/components/usb_cdc_acm/__init__.py
+++ b/esphome/components/usb_cdc_acm/__init__.py
@@ -15,6 +15,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@kbx81"]
 AUTO_LOAD = ["uart"]
 DEPENDENCIES = ["tinyusb"]
+DOMAIN = "usb_cdc_acm"
 
 CONF_INTERFACES = "interfaces"
 
diff --git a/esphome/components/usb_uart/__init__.py b/esphome/components/usb_uart/__init__.py
index a632b4e38d..f0cb11244f 100644
--- a/esphome/components/usb_uart/__init__.py
+++ b/esphome/components/usb_uart/__init__.py
@@ -24,6 +24,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["uart", "usb_host", "bytebuffer"]
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "usb_uart"
 
 usb_uart_ns = cg.esphome_ns.namespace("usb_uart")
 USBUartComponent = usb_uart_ns.class_("USBUartComponent", Component)
diff --git a/esphome/components/valve/__init__.py b/esphome/components/valve/__init__.py
index 7df58c7a2a..b000f6dd3f 100644
--- a/esphome/components/valve/__init__.py
+++ b/esphome/components/valve/__init__.py
@@ -33,6 +33,7 @@ from esphome.cpp_generator import MockObjClass
 IS_PLATFORM_COMPONENT = True
 
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "valve"
 
 DEVICE_CLASSES = [
     DEVICE_CLASS_EMPTY,
diff --git a/esphome/components/vbus/__init__.py b/esphome/components/vbus/__init__.py
index fd54658912..533acfbbb9 100644
--- a/esphome/components/vbus/__init__.py
+++ b/esphome/components/vbus/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@ssieb"]
+DOMAIN = "vbus"
 
 DEPENDENCIES = ["uart"]
 
diff --git a/esphome/components/veml3235/__init__.py b/esphome/components/veml3235/__init__.py
index e69de29bb2..57c95f46ef 100644
--- a/esphome/components/veml3235/__init__.py
+++ b/esphome/components/veml3235/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "veml3235"
diff --git a/esphome/components/veml7700/__init__.py b/esphome/components/veml7700/__init__.py
index dd06cfffea..9c8f1442d7 100644
--- a/esphome/components/veml7700/__init__.py
+++ b/esphome/components/veml7700/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@latonita"]
+DOMAIN = "veml7700"
diff --git a/esphome/components/version/__init__.py b/esphome/components/version/__init__.py
index f70ffa9520..f9c04b2596 100644
--- a/esphome/components/version/__init__.py
+++ b/esphome/components/version/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@esphome/core"]
+DOMAIN = "version"
diff --git a/esphome/components/vl53l0x/__init__.py b/esphome/components/vl53l0x/__init__.py
index e69de29bb2..3363ba9961 100644
--- a/esphome/components/vl53l0x/__init__.py
+++ b/esphome/components/vl53l0x/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "vl53l0x"
diff --git a/esphome/components/voice_assistant/__init__.py b/esphome/components/voice_assistant/__init__.py
index 14c036de8e..d306947ec1 100644
--- a/esphome/components/voice_assistant/__init__.py
+++ b/esphome/components/voice_assistant/__init__.py
@@ -19,6 +19,7 @@ AUTO_LOAD = ["audio", "ring_buffer", "socket"]
 DEPENDENCIES = ["api", "microphone"]
 
 CODEOWNERS = ["@jesserockz", "@kahrendt"]
+DOMAIN = "voice_assistant"
 
 CONF_ON_END = "on_end"
 CONF_ON_INTENT_END = "on_intent_end"
diff --git a/esphome/components/voltage_sampler/__init__.py b/esphome/components/voltage_sampler/__init__.py
index e60918096e..1dad646322 100644
--- a/esphome/components/voltage_sampler/__init__.py
+++ b/esphome/components/voltage_sampler/__init__.py
@@ -1,4 +1,6 @@
 import esphome.codegen as cg
 
+DOMAIN = "voltage_sampler"
+
 voltage_sampler_ns = cg.esphome_ns.namespace("voltage_sampler")
 VoltageSampler = voltage_sampler_ns.class_("VoltageSampler")
diff --git a/esphome/components/wake_on_lan/__init__.py b/esphome/components/wake_on_lan/__init__.py
index 90539e5d3c..ad052dd85e 100644
--- a/esphome/components/wake_on_lan/__init__.py
+++ b/esphome/components/wake_on_lan/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@willwill2will54", "@clydebarrow"]
+DOMAIN = "wake_on_lan"
diff --git a/esphome/components/watchdog/__init__.py b/esphome/components/watchdog/__init__.py
index 6fb87e45a4..2608ff7c57 100644
--- a/esphome/components/watchdog/__init__.py
+++ b/esphome/components/watchdog/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@oarcher"]
+DOMAIN = "watchdog"
diff --git a/esphome/components/water_heater/__init__.py b/esphome/components/water_heater/__init__.py
index 6bb2b2f8fe..b5821e55af 100644
--- a/esphome/components/water_heater/__init__.py
+++ b/esphome/components/water_heater/__init__.py
@@ -18,6 +18,7 @@ from esphome.cpp_generator import MockObjClass
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@dhoeben"]
+DOMAIN = "water_heater"
 
 IS_PLATFORM_COMPONENT = True
 
diff --git a/esphome/components/waveshare_epaper/__init__.py b/esphome/components/waveshare_epaper/__init__.py
index b410406a58..4bcfcdfda5 100644
--- a/esphome/components/waveshare_epaper/__init__.py
+++ b/esphome/components/waveshare_epaper/__init__.py
@@ -1,4 +1,5 @@
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "waveshare_epaper"
 
 DEPRECATED_COMPONENT = """
 The 'waveshare_epaper' component is deprecated and no new models will be added to it.
diff --git a/esphome/components/waveshare_io_ch32v003/__init__.py b/esphome/components/waveshare_io_ch32v003/__init__.py
index 29a939c523..5e53d30149 100644
--- a/esphome/components/waveshare_io_ch32v003/__init__.py
+++ b/esphome/components/waveshare_io_ch32v003/__init__.py
@@ -14,6 +14,7 @@ from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@latonita"]
+DOMAIN = "waveshare_io_ch32v003"
 
 AUTO_LOAD = ["gpio_expander"]
 DEPENDENCIES = ["i2c"]
diff --git a/esphome/components/web_server/__init__.py b/esphome/components/web_server/__init__.py
index 5e77c7496a..808ff6ed17 100644
--- a/esphome/components/web_server/__init__.py
+++ b/esphome/components/web_server/__init__.py
@@ -48,6 +48,7 @@ from esphome.types import ConfigType
 _LOGGER = logging.getLogger(__name__)
 
 AUTO_LOAD = ["json", "web_server_base"]
+DOMAIN = "web_server"
 
 AUTH_TYPE_BASIC = "basic"
 AUTH_TYPE_DIGEST = "digest"
diff --git a/esphome/components/web_server_base/__init__.py b/esphome/components/web_server_base/__init__.py
index 546e10ff5e..c94eea1190 100644
--- a/esphome/components/web_server_base/__init__.py
+++ b/esphome/components/web_server_base/__init__.py
@@ -10,6 +10,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
 DEPENDENCIES = ["network"]
+DOMAIN = "web_server_base"
 
 
 def AUTO_LOAD() -> list[str]:
diff --git a/esphome/components/web_server_idf/__init__.py b/esphome/components/web_server_idf/__init__.py
index b9d079b53f..98e067665a 100644
--- a/esphome/components/web_server_idf/__init__.py
+++ b/esphome/components/web_server_idf/__init__.py
@@ -7,6 +7,7 @@ import esphome.config_validation as cv
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@dentra"]
+DOMAIN = "web_server_idf"
 
 CONFIG_SCHEMA = cv.All(
     cv.Schema({}),
diff --git a/esphome/components/weikai/__init__.py b/esphome/components/weikai/__init__.py
index 8f0cf4ba33..58bfc6f815 100644
--- a/esphome/components/weikai/__init__.py
+++ b/esphome/components/weikai/__init__.py
@@ -17,6 +17,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@DrCoolZic"]
 AUTO_LOAD = ["uart"]
+DOMAIN = "weikai"
 
 MULTI_CONF = True
 CONF_CRYSTAL = "crystal"
diff --git a/esphome/components/weikai_i2c/__init__.py b/esphome/components/weikai_i2c/__init__.py
index 2c6a421a0a..9bbe558dcf 100644
--- a/esphome/components/weikai_i2c/__init__.py
+++ b/esphome/components/weikai_i2c/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@DrCoolZic"]
+DOMAIN = "weikai_i2c"
diff --git a/esphome/components/weikai_spi/__init__.py b/esphome/components/weikai_spi/__init__.py
index 2c6a421a0a..2a13bda034 100644
--- a/esphome/components/weikai_spi/__init__.py
+++ b/esphome/components/weikai_spi/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@DrCoolZic"]
+DOMAIN = "weikai_spi"
diff --git a/esphome/components/whirlpool/__init__.py b/esphome/components/whirlpool/__init__.py
index e69de29bb2..4bc63aeba8 100644
--- a/esphome/components/whirlpool/__init__.py
+++ b/esphome/components/whirlpool/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "whirlpool"
diff --git a/esphome/components/whynter/__init__.py b/esphome/components/whynter/__init__.py
index 7316776d78..f69112ca3d 100644
--- a/esphome/components/whynter/__init__.py
+++ b/esphome/components/whynter/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@aeonsablaze"]
+DOMAIN = "whynter"
diff --git a/esphome/components/wiegand/__init__.py b/esphome/components/wiegand/__init__.py
index dd6e84ac25..93d5e4f0f0 100644
--- a/esphome/components/wiegand/__init__.py
+++ b/esphome/components/wiegand/__init__.py
@@ -6,6 +6,7 @@ from esphome.const import CONF_ID, CONF_ON_KEY, CONF_ON_TAG, CONF_TRIGGER_ID
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@ssieb"]
+DOMAIN = "wiegand"
 
 AUTO_LOAD = ["key_provider"]
 
diff --git a/esphome/components/wifi/__init__.py b/esphome/components/wifi/__init__.py
index f357bf75b3..22ce14d27e 100644
--- a/esphome/components/wifi/__init__.py
+++ b/esphome/components/wifi/__init__.py
@@ -81,6 +81,7 @@ from . import wpa2_eap
 _LOGGER = logging.getLogger(__name__)
 
 AUTO_LOAD = ["network"]
+DOMAIN = "wifi"
 
 NO_WIFI_VARIANTS = [
     const.VARIANT_ESP32H2,
diff --git a/esphome/components/wifi_info/__init__.py b/esphome/components/wifi_info/__init__.py
index e69de29bb2..77d5dd714a 100644
--- a/esphome/components/wifi_info/__init__.py
+++ b/esphome/components/wifi_info/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "wifi_info"
diff --git a/esphome/components/wifi_signal/__init__.py b/esphome/components/wifi_signal/__init__.py
index e69de29bb2..febfbf7387 100644
--- a/esphome/components/wifi_signal/__init__.py
+++ b/esphome/components/wifi_signal/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "wifi_signal"
diff --git a/esphome/components/wireguard/__init__.py b/esphome/components/wireguard/__init__.py
index 3b67aa46d0..069b291574 100644
--- a/esphome/components/wireguard/__init__.py
+++ b/esphome/components/wireguard/__init__.py
@@ -33,6 +33,7 @@ CONF_WIREGUARD_ID = "wireguard_id"
 
 DEPENDENCIES = ["time"]
 CODEOWNERS = ["@lhoracek", "@droscy", "@thomas0bernard"]
+DOMAIN = "wireguard"
 
 # The key validation regex has been described by Jason Donenfeld himself
 # url: https://lists.zx2c4.com/pipermail/wireguard/2020-December/006222.html
diff --git a/esphome/components/wk2132_i2c/__init__.py b/esphome/components/wk2132_i2c/__init__.py
index ecb7a5da09..7e0999b08f 100644
--- a/esphome/components/wk2132_i2c/__init__.py
+++ b/esphome/components/wk2132_i2c/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@DrCoolZic"]
 DEPENDENCIES = ["i2c"]
 AUTO_LOAD = ["weikai", "weikai_i2c"]
+DOMAIN = "wk2132_i2c"
 MULTI_CONF = True
 
 weikai_i2c_ns = cg.esphome_ns.namespace("weikai_i2c")
diff --git a/esphome/components/wk2132_spi/__init__.py b/esphome/components/wk2132_spi/__init__.py
index 94b692f170..de482839e1 100644
--- a/esphome/components/wk2132_spi/__init__.py
+++ b/esphome/components/wk2132_spi/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@DrCoolZic"]
 DEPENDENCIES = ["spi"]
 AUTO_LOAD = ["weikai", "weikai_spi"]
+DOMAIN = "wk2132_spi"
 MULTI_CONF = True
 
 weikai_spi_ns = cg.esphome_ns.namespace("weikai_spi")
diff --git a/esphome/components/wk2168_i2c/__init__.py b/esphome/components/wk2168_i2c/__init__.py
index d4aacaf97d..c450717ea2 100644
--- a/esphome/components/wk2168_i2c/__init__.py
+++ b/esphome/components/wk2168_i2c/__init__.py
@@ -9,6 +9,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@DrCoolZic"]
 DEPENDENCIES = ["i2c"]
 AUTO_LOAD = ["weikai", "weikai_i2c"]
+DOMAIN = "wk2168_i2c"
 MULTI_CONF = True
 CONF_WK2168_I2C = "wk2168_i2c"
 
diff --git a/esphome/components/wk2168_spi/__init__.py b/esphome/components/wk2168_spi/__init__.py
index b4efaf65ac..ef12117a2c 100644
--- a/esphome/components/wk2168_spi/__init__.py
+++ b/esphome/components/wk2168_spi/__init__.py
@@ -9,6 +9,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@DrCoolZic"]
 DEPENDENCIES = ["spi"]
 AUTO_LOAD = ["weikai", "weikai_spi"]
+DOMAIN = "wk2168_spi"
 MULTI_CONF = True
 CONF_WK2168_SPI = "wk2168_spi"
 
diff --git a/esphome/components/wk2204_i2c/__init__.py b/esphome/components/wk2204_i2c/__init__.py
index 1502cc6cdb..b8882d41c1 100644
--- a/esphome/components/wk2204_i2c/__init__.py
+++ b/esphome/components/wk2204_i2c/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@DrCoolZic"]
 DEPENDENCIES = ["i2c"]
 AUTO_LOAD = ["weikai", "weikai_i2c"]
+DOMAIN = "wk2204_i2c"
 MULTI_CONF = True
 
 weikai_i2c_ns = cg.esphome_ns.namespace("weikai_i2c")
diff --git a/esphome/components/wk2204_spi/__init__.py b/esphome/components/wk2204_spi/__init__.py
index 930f534bb0..2de911aebd 100644
--- a/esphome/components/wk2204_spi/__init__.py
+++ b/esphome/components/wk2204_spi/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@DrCoolZic"]
 DEPENDENCIES = ["spi"]
 AUTO_LOAD = ["weikai", "weikai_spi"]
+DOMAIN = "wk2204_spi"
 MULTI_CONF = True
 
 weikai_spi_ns = cg.esphome_ns.namespace("weikai_spi")
diff --git a/esphome/components/wk2212_i2c/__init__.py b/esphome/components/wk2212_i2c/__init__.py
index 00018dd735..1f51fea314 100644
--- a/esphome/components/wk2212_i2c/__init__.py
+++ b/esphome/components/wk2212_i2c/__init__.py
@@ -9,6 +9,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@DrCoolZic"]
 DEPENDENCIES = ["i2c"]
 AUTO_LOAD = ["weikai", "weikai_i2c"]
+DOMAIN = "wk2212_i2c"
 MULTI_CONF = True
 CONF_WK2212_I2C = "wk2212_i2c"
 
diff --git a/esphome/components/wk2212_spi/__init__.py b/esphome/components/wk2212_spi/__init__.py
index c1a050e8ca..a0cce3331a 100644
--- a/esphome/components/wk2212_spi/__init__.py
+++ b/esphome/components/wk2212_spi/__init__.py
@@ -9,6 +9,7 @@ from esphome.types import ConfigType
 CODEOWNERS = ["@DrCoolZic"]
 DEPENDENCIES = ["spi"]
 AUTO_LOAD = ["weikai", "weikai_spi"]
+DOMAIN = "wk2212_spi"
 MULTI_CONF = True
 CONF_WK2212_SPI = "wk2212_spi"
 
diff --git a/esphome/components/wl_134/__init__.py b/esphome/components/wl_134/__init__.py
index e69de29bb2..03fae78280 100644
--- a/esphome/components/wl_134/__init__.py
+++ b/esphome/components/wl_134/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "wl_134"
diff --git a/esphome/components/wled/__init__.py b/esphome/components/wled/__init__.py
index a7135975f0..6b3263e6a3 100644
--- a/esphome/components/wled/__init__.py
+++ b/esphome/components/wled/__init__.py
@@ -6,6 +6,8 @@ from esphome.const import CONF_NAME, CONF_PORT
 from esphome.core import CORE, ID
 from esphome.types import ConfigType
 
+DOMAIN = "wled"
+
 wled_ns = cg.esphome_ns.namespace("wled")
 WLEDLightEffect = wled_ns.class_("WLEDLightEffect", AddressableLightEffect)
 
diff --git a/esphome/components/wts01/__init__.py b/esphome/components/wts01/__init__.py
index e69de29bb2..5d5a06ea05 100644
--- a/esphome/components/wts01/__init__.py
+++ b/esphome/components/wts01/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "wts01"
diff --git a/esphome/components/x9c/__init__.py b/esphome/components/x9c/__init__.py
index e69de29bb2..46a7316bd1 100644
--- a/esphome/components/x9c/__init__.py
+++ b/esphome/components/x9c/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "x9c"
diff --git a/esphome/components/xdb401/__init__.py b/esphome/components/xdb401/__init__.py
index 943139e19a..181b38caca 100644
--- a/esphome/components/xdb401/__init__.py
+++ b/esphome/components/xdb401/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@RT530"]
+DOMAIN = "xdb401"
diff --git a/esphome/components/xgzp68xx/__init__.py b/esphome/components/xgzp68xx/__init__.py
index 122ffaf6ed..6cebeffba1 100644
--- a/esphome/components/xgzp68xx/__init__.py
+++ b/esphome/components/xgzp68xx/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@gcormier"]
+DOMAIN = "xgzp68xx"
diff --git a/esphome/components/xiaomi_ble/__init__.py b/esphome/components/xiaomi_ble/__init__.py
index 16da83934e..de7998b290 100644
--- a/esphome/components/xiaomi_ble/__init__.py
+++ b/esphome/components/xiaomi_ble/__init__.py
@@ -5,6 +5,7 @@ from esphome.const import CONF_ID
 from esphome.types import ConfigType
 
 AUTO_LOAD = ["ble_device_base"]
+DOMAIN = "xiaomi_ble"
 
 xiaomi_ble_ns = cg.esphome_ns.namespace("xiaomi_ble")
 XiaomiListener = xiaomi_ble_ns.class_(
diff --git a/esphome/components/xiaomi_body_scale/__init__.py b/esphome/components/xiaomi_body_scale/__init__.py
index 3d75ef24ec..aeb29d234f 100644
--- a/esphome/components/xiaomi_body_scale/__init__.py
+++ b/esphome/components/xiaomi_body_scale/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@dckiller51"]
+DOMAIN = "xiaomi_body_scale"
diff --git a/esphome/components/xiaomi_cgd1/__init__.py b/esphome/components/xiaomi_cgd1/__init__.py
index e69de29bb2..f76e529bb2 100644
--- a/esphome/components/xiaomi_cgd1/__init__.py
+++ b/esphome/components/xiaomi_cgd1/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_cgd1"
diff --git a/esphome/components/xiaomi_cgdk2/__init__.py b/esphome/components/xiaomi_cgdk2/__init__.py
index e69de29bb2..5a9b433236 100644
--- a/esphome/components/xiaomi_cgdk2/__init__.py
+++ b/esphome/components/xiaomi_cgdk2/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_cgdk2"
diff --git a/esphome/components/xiaomi_cgg1/__init__.py b/esphome/components/xiaomi_cgg1/__init__.py
index e69de29bb2..ea01df8c57 100644
--- a/esphome/components/xiaomi_cgg1/__init__.py
+++ b/esphome/components/xiaomi_cgg1/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_cgg1"
diff --git a/esphome/components/xiaomi_cgpr1/__init__.py b/esphome/components/xiaomi_cgpr1/__init__.py
index e69de29bb2..b17553724d 100644
--- a/esphome/components/xiaomi_cgpr1/__init__.py
+++ b/esphome/components/xiaomi_cgpr1/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_cgpr1"
diff --git a/esphome/components/xiaomi_gcls002/__init__.py b/esphome/components/xiaomi_gcls002/__init__.py
index e69de29bb2..643a26ffe2 100644
--- a/esphome/components/xiaomi_gcls002/__init__.py
+++ b/esphome/components/xiaomi_gcls002/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_gcls002"
diff --git a/esphome/components/xiaomi_hhccjcy01/__init__.py b/esphome/components/xiaomi_hhccjcy01/__init__.py
index e69de29bb2..e8e38dc51f 100644
--- a/esphome/components/xiaomi_hhccjcy01/__init__.py
+++ b/esphome/components/xiaomi_hhccjcy01/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_hhccjcy01"
diff --git a/esphome/components/xiaomi_hhccjcy10/__init__.py b/esphome/components/xiaomi_hhccjcy10/__init__.py
index d47cef13c6..eeb0e7d7ef 100644
--- a/esphome/components/xiaomi_hhccjcy10/__init__.py
+++ b/esphome/components/xiaomi_hhccjcy10/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@fariouche"]
+DOMAIN = "xiaomi_hhccjcy10"
diff --git a/esphome/components/xiaomi_hhccpot002/__init__.py b/esphome/components/xiaomi_hhccpot002/__init__.py
index e69de29bb2..4d74c2f432 100644
--- a/esphome/components/xiaomi_hhccpot002/__init__.py
+++ b/esphome/components/xiaomi_hhccpot002/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_hhccpot002"
diff --git a/esphome/components/xiaomi_jqjcy01ym/__init__.py b/esphome/components/xiaomi_jqjcy01ym/__init__.py
index e69de29bb2..e381fe6172 100644
--- a/esphome/components/xiaomi_jqjcy01ym/__init__.py
+++ b/esphome/components/xiaomi_jqjcy01ym/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_jqjcy01ym"
diff --git a/esphome/components/xiaomi_lywsd02/__init__.py b/esphome/components/xiaomi_lywsd02/__init__.py
index e69de29bb2..e8eb493338 100644
--- a/esphome/components/xiaomi_lywsd02/__init__.py
+++ b/esphome/components/xiaomi_lywsd02/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_lywsd02"
diff --git a/esphome/components/xiaomi_lywsd02mmc/__init__.py b/esphome/components/xiaomi_lywsd02mmc/__init__.py
index e69de29bb2..2398660e95 100644
--- a/esphome/components/xiaomi_lywsd02mmc/__init__.py
+++ b/esphome/components/xiaomi_lywsd02mmc/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_lywsd02mmc"
diff --git a/esphome/components/xiaomi_lywsd03mmc/__init__.py b/esphome/components/xiaomi_lywsd03mmc/__init__.py
index e69de29bb2..3d1638fc11 100644
--- a/esphome/components/xiaomi_lywsd03mmc/__init__.py
+++ b/esphome/components/xiaomi_lywsd03mmc/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_lywsd03mmc"
diff --git a/esphome/components/xiaomi_lywsdcgq/__init__.py b/esphome/components/xiaomi_lywsdcgq/__init__.py
index e69de29bb2..bbf235aa96 100644
--- a/esphome/components/xiaomi_lywsdcgq/__init__.py
+++ b/esphome/components/xiaomi_lywsdcgq/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_lywsdcgq"
diff --git a/esphome/components/xiaomi_mccgq02hl/__init__.py b/esphome/components/xiaomi_mccgq02hl/__init__.py
index 3aecbd8207..a65bad1cb1 100644
--- a/esphome/components/xiaomi_mccgq02hl/__init__.py
+++ b/esphome/components/xiaomi_mccgq02hl/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@ahpohl", "@morph027"]
+DOMAIN = "xiaomi_mccgq02hl"
diff --git a/esphome/components/xiaomi_mhoc303/__init__.py b/esphome/components/xiaomi_mhoc303/__init__.py
index e7005b3957..5ffa02332f 100644
--- a/esphome/components/xiaomi_mhoc303/__init__.py
+++ b/esphome/components/xiaomi_mhoc303/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@drug123"]
+DOMAIN = "xiaomi_mhoc303"
diff --git a/esphome/components/xiaomi_mhoc401/__init__.py b/esphome/components/xiaomi_mhoc401/__init__.py
index e69de29bb2..14fe18af57 100644
--- a/esphome/components/xiaomi_mhoc401/__init__.py
+++ b/esphome/components/xiaomi_mhoc401/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_mhoc401"
diff --git a/esphome/components/xiaomi_miscale/__init__.py b/esphome/components/xiaomi_miscale/__init__.py
index e69de29bb2..ddda4a0a5b 100644
--- a/esphome/components/xiaomi_miscale/__init__.py
+++ b/esphome/components/xiaomi_miscale/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_miscale"
diff --git a/esphome/components/xiaomi_miscale2/__init__.py b/esphome/components/xiaomi_miscale2/__init__.py
index e69de29bb2..346db02445 100644
--- a/esphome/components/xiaomi_miscale2/__init__.py
+++ b/esphome/components/xiaomi_miscale2/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_miscale2"
diff --git a/esphome/components/xiaomi_mjyd02yla/__init__.py b/esphome/components/xiaomi_mjyd02yla/__init__.py
index e69de29bb2..eb881ca39a 100644
--- a/esphome/components/xiaomi_mjyd02yla/__init__.py
+++ b/esphome/components/xiaomi_mjyd02yla/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_mjyd02yla"
diff --git a/esphome/components/xiaomi_mue4094rt/__init__.py b/esphome/components/xiaomi_mue4094rt/__init__.py
index e69de29bb2..3d539b267d 100644
--- a/esphome/components/xiaomi_mue4094rt/__init__.py
+++ b/esphome/components/xiaomi_mue4094rt/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_mue4094rt"
diff --git a/esphome/components/xiaomi_rtcgq02lm/__init__.py b/esphome/components/xiaomi_rtcgq02lm/__init__.py
index 7b289a8ee3..71d7e0a265 100644
--- a/esphome/components/xiaomi_rtcgq02lm/__init__.py
+++ b/esphome/components/xiaomi_rtcgq02lm/__init__.py
@@ -6,6 +6,7 @@ from esphome.types import ConfigType
 
 AUTO_LOAD = ["ble_device_base", "xiaomi_ble"]
 CODEOWNERS = ["@jesserockz"]
+DOMAIN = "xiaomi_rtcgq02lm"
 MULTI_CONF = True
 
 xiaomi_rtcgq02lm_ns = cg.esphome_ns.namespace("xiaomi_rtcgq02lm")
diff --git a/esphome/components/xiaomi_wx08zm/__init__.py b/esphome/components/xiaomi_wx08zm/__init__.py
index e69de29bb2..d795931df9 100644
--- a/esphome/components/xiaomi_wx08zm/__init__.py
+++ b/esphome/components/xiaomi_wx08zm/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_wx08zm"
diff --git a/esphome/components/xiaomi_xmwsdj04mmc/__init__.py b/esphome/components/xiaomi_xmwsdj04mmc/__init__.py
index e69de29bb2..98af32069c 100644
--- a/esphome/components/xiaomi_xmwsdj04mmc/__init__.py
+++ b/esphome/components/xiaomi_xmwsdj04mmc/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "xiaomi_xmwsdj04mmc"
diff --git a/esphome/components/xl9535/__init__.py b/esphome/components/xl9535/__init__.py
index 2656b60c10..1c6548bb5f 100644
--- a/esphome/components/xl9535/__init__.py
+++ b/esphome/components/xl9535/__init__.py
@@ -17,6 +17,7 @@ CONF_XL9535 = "xl9535"
 
 DEPENDENCIES = ["i2c"]
 CODEOWNERS = ["@mreditor97"]
+DOMAIN = "xl9535"
 
 xl9535_ns = cg.esphome_ns.namespace(CONF_XL9535)
 
diff --git a/esphome/components/xpt2046/__init__.py b/esphome/components/xpt2046/__init__.py
index 3b8a925bb2..a2b1372b62 100644
--- a/esphome/components/xpt2046/__init__.py
+++ b/esphome/components/xpt2046/__init__.py
@@ -1,5 +1,7 @@
 import esphome.config_validation as cv
 
+DOMAIN = "xpt2046"
+
 CONFIG_SCHEMA = cv.invalid(
     "This component sould now be used as platform of the Touchscreen component."
 )
diff --git a/esphome/components/xxtea/__init__.py b/esphome/components/xxtea/__init__.py
index 7a7bce1781..79d31dc44a 100644
--- a/esphome/components/xxtea/__init__.py
+++ b/esphome/components/xxtea/__init__.py
@@ -1,3 +1,4 @@
 """ESPHome XXTEA encryption component."""
 
 CODEOWNERS = ["@clydebarrow"]
+DOMAIN = "xxtea"
diff --git a/esphome/components/yashima/__init__.py b/esphome/components/yashima/__init__.py
index e69de29bb2..587acabe78 100644
--- a/esphome/components/yashima/__init__.py
+++ b/esphome/components/yashima/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "yashima"
diff --git a/esphome/components/zephyr/__init__.py b/esphome/components/zephyr/__init__.py
index 49654736cc..4f69f00339 100644
--- a/esphome/components/zephyr/__init__.py
+++ b/esphome/components/zephyr/__init__.py
@@ -26,6 +26,7 @@ from .const import (
 )
 
 CODEOWNERS = ["@tomaszduda23"]
+DOMAIN = "zephyr"
 
 
 class HexValue:
diff --git a/esphome/components/zephyr_mcumgr/__init__.py b/esphome/components/zephyr_mcumgr/__init__.py
index e69de29bb2..945cc5807d 100644
--- a/esphome/components/zephyr_mcumgr/__init__.py
+++ b/esphome/components/zephyr_mcumgr/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "zephyr_mcumgr"
diff --git a/esphome/components/zephyr_pwm/__init__.py b/esphome/components/zephyr_pwm/__init__.py
index 4bcce84845..4d3382d617 100644
--- a/esphome/components/zephyr_pwm/__init__.py
+++ b/esphome/components/zephyr_pwm/__init__.py
@@ -1 +1,2 @@
 CODEOWNERS = ["@wiomoc"]
+DOMAIN = "zephyr_pwm"
diff --git a/esphome/components/zhlt01/__init__.py b/esphome/components/zhlt01/__init__.py
index e69de29bb2..c17009d722 100644
--- a/esphome/components/zhlt01/__init__.py
+++ b/esphome/components/zhlt01/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "zhlt01"
diff --git a/esphome/components/zigbee/__init__.py b/esphome/components/zigbee/__init__.py
index 0a99db8958..c5dc50ee5f 100644
--- a/esphome/components/zigbee/__init__.py
+++ b/esphome/components/zigbee/__init__.py
@@ -57,6 +57,7 @@ from .zigbee_zephyr import (
 _LOGGER = logging.getLogger(__name__)
 
 CODEOWNERS = ["@luar123", "@tomaszduda23"]
+DOMAIN = "zigbee"
 
 CONFLICTS_WITH = ["openthread"]
 
diff --git a/esphome/components/zio_ultrasonic/__init__.py b/esphome/components/zio_ultrasonic/__init__.py
index e69de29bb2..7b2178dc7c 100644
--- a/esphome/components/zio_ultrasonic/__init__.py
+++ b/esphome/components/zio_ultrasonic/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "zio_ultrasonic"
diff --git a/esphome/components/zwave_proxy/__init__.py b/esphome/components/zwave_proxy/__init__.py
index 660e3f49a0..4817a854a8 100644
--- a/esphome/components/zwave_proxy/__init__.py
+++ b/esphome/components/zwave_proxy/__init__.py
@@ -7,6 +7,7 @@ from esphome.types import ConfigType
 
 CODEOWNERS = ["@kbx81"]
 DEPENDENCIES = ["api", "uart"]
+DOMAIN = "zwave_proxy"
 
 zwave_proxy_ns = cg.esphome_ns.namespace("zwave_proxy")
 ZWaveProxy = zwave_proxy_ns.class_("ZWaveProxy", cg.Component, uart.UARTDevice)
diff --git a/esphome/components/zyaura/__init__.py b/esphome/components/zyaura/__init__.py
index e69de29bb2..dcabd7a6bd 100644
--- a/esphome/components/zyaura/__init__.py
+++ b/esphome/components/zyaura/__init__.py
@@ -0,0 +1 @@
+DOMAIN = "zyaura"
diff --git a/script/ci-custom.py b/script/ci-custom.py
index d41d5b4302..bd9b459753 100755
--- a/script/ci-custom.py
+++ b/script/ci-custom.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 
 import argparse
+import ast
 import codecs
 import collections
 from collections.abc import Iterator
@@ -811,6 +812,40 @@ def lint_const_py_frozen(fname, content):
     return None
 
 
+@lint_content_check(include=["esphome/components/*/__init__.py"])
+def lint_component_domain(fname: Path, content: str) -> str | None:
+    """Require every component's __init__.py to define DOMAIN as its own name."""
+    if len(fname.parts) != 4:
+        # Platform packages such as esphome/components/<name>/sensor/__init__.py
+        return None
+    domain = fname.parts[2]
+    expected = f'DOMAIN = "{domain}"'
+    try:
+        tree = ast.parse(content, filename=str(fname))
+    except SyntaxError:
+        # Reported by the Python linters; nothing useful to add here.
+        return None
+    for node in tree.body:
+        if isinstance(node, ast.Assign):
+            targets = node.targets
+        elif isinstance(node, ast.AnnAssign):
+            targets = [node.target]
+        else:
+            continue
+        if (
+            any(isinstance(t, ast.Name) and t.id == "DOMAIN" for t in targets)
+            and isinstance(node.value, ast.Constant)
+            and node.value.value == domain
+        ):
+            return None
+    return (
+        f"Component is missing the {highlight(expected)} constant. "
+        "Add it in alphabetical order with the other component metadata such as "
+        "CODEOWNERS and DEPENDENCIES, so other code can refer to the component by "
+        "name, e.g. CORE.data[DOMAIN]."
+    )
+
+
 def relative_cpp_search_text(fname: Path, content) -> str:
     parts = fname.parts
     integration = parts[2]
diff --git a/tests/script/test_ci_custom.py b/tests/script/test_ci_custom.py
index 4459631293..998650079e 100644
--- a/tests/script/test_ci_custom.py
+++ b/tests/script/test_ci_custom.py
@@ -442,3 +442,75 @@ def test_log_tag_as_string_flags_string_uses(line: str) -> None:
 )
 def test_log_tag_as_string_ignores_logging(line: str) -> None:
     assert not ci_custom.lint_log_tag_as_string("test.cpp", line + "\n")
+
+
+# --- rule: every component __init__.py defines DOMAIN as its own name ---
+
+
+def _domain_check() -> dict:
+    return next(
+        c
+        for c in ci_custom.LINT_CONTENT_CHECKS
+        if c["func"] is ci_custom.lint_component_domain
+    )
+
+
+def _lint_domain(fname: str, content: str) -> str | None:
+    return ci_custom.run_check(_domain_check(), fname, Path(fname), content)
+
+
+@pytest.mark.parametrize(
+    "content",
+    [
+        'CODEOWNERS = ["@x"]\nDOMAIN = "uart"\n',
+        'DOMAIN: str = "uart"\n',
+    ],
+)
+def test_domain_matching_component_name_passes(content: str) -> None:
+    assert _lint_domain("esphome/components/uart/__init__.py", content) is None
+
+
+def test_domain_leaves_syntax_errors_to_the_python_linters() -> None:
+    assert _lint_domain("esphome/components/uart/__init__.py", "def (\n") is None
+
+
+@pytest.mark.parametrize(
+    "content",
+    [
+        'CODEOWNERS = ["@x"]\n',
+        'DOMAIN = "spi"\n',
+        "DOMAIN = CONF_UART\n",
+        '"""Docstring.\n\nDOMAIN = "uart"\n"""\n',
+        'def f() -> None:\n    DOMAIN = "uart"\n',
+        'OTHER = "uart"\n',
+        "DOMAIN: str\n",
+    ],
+)
+def test_domain_missing_or_wrong_is_flagged(content: str) -> None:
+    err = _lint_domain("esphome/components/uart/__init__.py", content)
+    assert err is not None
+    assert 'DOMAIN = "uart"' in err
+
+
+@pytest.mark.parametrize(
+    "fname",
+    [
+        "esphome/components/uart/sensor/__init__.py",
+        "esphome/components/uart/sensor.py",
+        "esphome/core/__init__.py",
+    ],
+)
+def test_domain_ignores_files_other_than_component_init(fname: str) -> None:
+    assert _lint_domain(fname, "") is None
+
+
+def test_every_component_defines_its_domain() -> None:
+    components = SCRIPT_DIR.parent / "esphome" / "components"
+    missing = [
+        init.parent.name
+        for init in sorted(components.glob("*/__init__.py"))
+        if ci_custom.lint_component_domain(
+            init.relative_to(SCRIPT_DIR.parent), init.read_text(encoding="utf-8")
+        )
+    ]
+    assert missing == []