diff --git a/homeassistant/components/cert_expiry/__init__.py b/homeassistant/components/cert_expiry/__init__.py
index 5d1e68a951f..391bb3ef8f3 100644
--- a/homeassistant/components/cert_expiry/__init__.py
+++ b/homeassistant/components/cert_expiry/__init__.py
@@ -1,22 +1,13 @@
 """The cert_expiry component."""
 from __future__ import annotations
 
-from datetime import datetime, timedelta
-import logging
-
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_HOST, CONF_PORT, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.start import async_at_started
-from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
 
-from .const import DEFAULT_PORT, DOMAIN
-from .errors import TemporaryFailure, ValidationFailure
-from .helper import get_cert_expiry_timestamp
-
-_LOGGER = logging.getLogger(__name__)
-
-SCAN_INTERVAL = timedelta(hours=12)
+from .const import DOMAIN
+from .coordinator import CertExpiryDataUpdateCoordinator
 
 PLATFORMS = [Platform.SENSOR]
 
@@ -45,37 +36,3 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
 async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Unload a config entry."""
     return await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
-
-
-class CertExpiryDataUpdateCoordinator(DataUpdateCoordinator[datetime | None]):
-    """Class to manage fetching Cert Expiry data from single endpoint."""
-
-    def __init__(self, hass, host, port):
-        """Initialize global Cert Expiry data updater."""
-        self.host = host
-        self.port = port
-        self.cert_error = None
-        self.is_cert_valid = False
-
-        display_port = f":{port}" if port != DEFAULT_PORT else ""
-        name = f"{self.host}{display_port}"
-
-        super().__init__(
-            hass, _LOGGER, name=name, update_interval=SCAN_INTERVAL, always_update=False
-        )
-
-    async def _async_update_data(self) -> datetime | None:
-        """Fetch certificate."""
-        try:
-            timestamp = await get_cert_expiry_timestamp(self.hass, self.host, self.port)
-        except TemporaryFailure as err:
-            raise UpdateFailed(err.args[0]) from err
-        except ValidationFailure as err:
-            self.cert_error = err
-            self.is_cert_valid = False
-            _LOGGER.error("Certificate validation error: %s [%s]", self.host, err)
-            return None
-
-        self.cert_error = None
-        self.is_cert_valid = True
-        return timestamp
diff --git a/homeassistant/components/cert_expiry/coordinator.py b/homeassistant/components/cert_expiry/coordinator.py
new file mode 100644
index 00000000000..6a125758f70
--- /dev/null
+++ b/homeassistant/components/cert_expiry/coordinator.py
@@ -0,0 +1,51 @@
+"""DataUpdateCoordinator for cert_expiry coordinator."""
+from __future__ import annotations
+
+from datetime import datetime, timedelta
+import logging
+
+from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
+
+from .const import DEFAULT_PORT
+from .errors import TemporaryFailure, ValidationFailure
+from .helper import get_cert_expiry_timestamp
+
+_LOGGER = logging.getLogger(__name__)
+
+
+class CertExpiryDataUpdateCoordinator(DataUpdateCoordinator[datetime | None]):
+    """Class to manage fetching Cert Expiry data from single endpoint."""
+
+    def __init__(self, hass, host, port):
+        """Initialize global Cert Expiry data updater."""
+        self.host = host
+        self.port = port
+        self.cert_error = None
+        self.is_cert_valid = False
+
+        display_port = f":{port}" if port != DEFAULT_PORT else ""
+        name = f"{self.host}{display_port}"
+
+        super().__init__(
+            hass,
+            _LOGGER,
+            name=name,
+            update_interval=timedelta(hours=12),
+            always_update=False,
+        )
+
+    async def _async_update_data(self) -> datetime | None:
+        """Fetch certificate."""
+        try:
+            timestamp = await get_cert_expiry_timestamp(self.hass, self.host, self.port)
+        except TemporaryFailure as err:
+            raise UpdateFailed(err.args[0]) from err
+        except ValidationFailure as err:
+            self.cert_error = err
+            self.is_cert_valid = False
+            _LOGGER.error("Certificate validation error: %s [%s]", self.host, err)
+            return None
+
+        self.cert_error = None
+        self.is_cert_valid = True
+        return timestamp
diff --git a/tests/components/cert_expiry/test_config_flow.py b/tests/components/cert_expiry/test_config_flow.py
index 52985da0014..f950fce6a68 100644
--- a/tests/components/cert_expiry/test_config_flow.py
+++ b/tests/components/cert_expiry/test_config_flow.py
@@ -67,7 +67,7 @@ async def test_import_host_only(hass: HomeAssistant) -> None:
     with patch(
         "homeassistant.components.cert_expiry.config_flow.get_cert_expiry_timestamp"
     ), patch(
-        "homeassistant.components.cert_expiry.get_cert_expiry_timestamp",
+        "homeassistant.components.cert_expiry.coordinator.get_cert_expiry_timestamp",
         return_value=future_timestamp(1),
     ):
         result = await hass.config_entries.flow.async_init(
@@ -89,7 +89,7 @@ async def test_import_host_and_port(hass: HomeAssistant) -> None:
     with patch(
         "homeassistant.components.cert_expiry.config_flow.get_cert_expiry_timestamp"
     ), patch(
-        "homeassistant.components.cert_expiry.get_cert_expiry_timestamp",
+        "homeassistant.components.cert_expiry.coordinator.get_cert_expiry_timestamp",
         return_value=future_timestamp(1),
     ):
         result = await hass.config_entries.flow.async_init(
@@ -111,7 +111,7 @@ async def test_import_non_default_port(hass: HomeAssistant) -> None:
     with patch(
         "homeassistant.components.cert_expiry.config_flow.get_cert_expiry_timestamp"
     ), patch(
-        "homeassistant.components.cert_expiry.get_cert_expiry_timestamp",
+        "homeassistant.components.cert_expiry.coordinator.get_cert_expiry_timestamp",
         return_value=future_timestamp(1),
     ):
         result = await hass.config_entries.flow.async_init(
@@ -133,7 +133,7 @@ async def test_import_with_name(hass: HomeAssistant) -> None:
     with patch(
         "homeassistant.components.cert_expiry.config_flow.get_cert_expiry_timestamp"
     ), patch(
-        "homeassistant.components.cert_expiry.get_cert_expiry_timestamp",
+        "homeassistant.components.cert_expiry.coordinator.get_cert_expiry_timestamp",
         return_value=future_timestamp(1),
     ):
         result = await hass.config_entries.flow.async_init(
diff --git a/tests/components/cert_expiry/test_init.py b/tests/components/cert_expiry/test_init.py
index 29fbf372ec4..6c1d593560e 100644
--- a/tests/components/cert_expiry/test_init.py
+++ b/tests/components/cert_expiry/test_init.py
@@ -42,7 +42,7 @@ async def test_setup_with_config(hass: HomeAssistant) -> None:
     with patch(
         "homeassistant.components.cert_expiry.config_flow.get_cert_expiry_timestamp"
     ), patch(
-        "homeassistant.components.cert_expiry.get_cert_expiry_timestamp",
+        "homeassistant.components.cert_expiry.coordinator.get_cert_expiry_timestamp",
         return_value=future_timestamp(1),
     ):
         await hass.async_block_till_done()
@@ -63,7 +63,7 @@ async def test_update_unique_id(hass: HomeAssistant) -> None:
     assert not entry.unique_id
 
     with patch(
-        "homeassistant.components.cert_expiry.get_cert_expiry_timestamp",
+        "homeassistant.components.cert_expiry.coordinator.get_cert_expiry_timestamp",
         return_value=future_timestamp(1),
     ):
         assert await async_setup_component(hass, DOMAIN, {}) is True
@@ -91,7 +91,7 @@ async def test_unload_config_entry(mock_now, hass: HomeAssistant) -> None:
 
     timestamp = future_timestamp(100)
     with patch(
-        "homeassistant.components.cert_expiry.get_cert_expiry_timestamp",
+        "homeassistant.components.cert_expiry.coordinator.get_cert_expiry_timestamp",
         return_value=timestamp,
     ):
         assert await async_setup_component(hass, DOMAIN, {}) is True
@@ -134,7 +134,7 @@ async def test_delay_load_during_startup(hass: HomeAssistant) -> None:
 
     timestamp = future_timestamp(100)
     with patch(
-        "homeassistant.components.cert_expiry.get_cert_expiry_timestamp",
+        "homeassistant.components.cert_expiry.coordinator.get_cert_expiry_timestamp",
         return_value=timestamp,
     ):
         await hass.async_start()
diff --git a/tests/components/cert_expiry/test_sensors.py b/tests/components/cert_expiry/test_sensors.py
index e6a526c7c9e..48421f5c41f 100644
--- a/tests/components/cert_expiry/test_sensors.py
+++ b/tests/components/cert_expiry/test_sensors.py
@@ -29,7 +29,7 @@ async def test_async_setup_entry(mock_now, hass: HomeAssistant) -> None:
     timestamp = future_timestamp(100)
 
     with patch(
-        "homeassistant.components.cert_expiry.get_cert_expiry_timestamp",
+        "homeassistant.components.cert_expiry.coordinator.get_cert_expiry_timestamp",
         return_value=timestamp,
     ):
         entry.add_to_hass(hass)
@@ -83,7 +83,7 @@ async def test_update_sensor(hass: HomeAssistant) -> None:
     timestamp = future_timestamp(100)
 
     with patch("homeassistant.util.dt.utcnow", return_value=starting_time), patch(
-        "homeassistant.components.cert_expiry.get_cert_expiry_timestamp",
+        "homeassistant.components.cert_expiry.coordinator.get_cert_expiry_timestamp",
         return_value=timestamp,
     ):
         entry.add_to_hass(hass)
@@ -99,7 +99,7 @@ async def test_update_sensor(hass: HomeAssistant) -> None:
 
     next_update = starting_time + timedelta(hours=24)
     with patch("homeassistant.util.dt.utcnow", return_value=next_update), patch(
-        "homeassistant.components.cert_expiry.get_cert_expiry_timestamp",
+        "homeassistant.components.cert_expiry.coordinator.get_cert_expiry_timestamp",
         return_value=timestamp,
     ):
         async_fire_time_changed(hass, utcnow() + timedelta(hours=24))
@@ -127,7 +127,7 @@ async def test_update_sensor_network_errors(hass: HomeAssistant) -> None:
     timestamp = future_timestamp(100)
 
     with patch("homeassistant.util.dt.utcnow", return_value=starting_time), patch(
-        "homeassistant.components.cert_expiry.get_cert_expiry_timestamp",
+        "homeassistant.components.cert_expiry.coordinator.get_cert_expiry_timestamp",
         return_value=timestamp,
     ):
         entry.add_to_hass(hass)
@@ -156,7 +156,7 @@ async def test_update_sensor_network_errors(hass: HomeAssistant) -> None:
     assert state.state == STATE_UNAVAILABLE
 
     with patch("homeassistant.util.dt.utcnow", return_value=next_update), patch(
-        "homeassistant.components.cert_expiry.get_cert_expiry_timestamp",
+        "homeassistant.components.cert_expiry.coordinator.get_cert_expiry_timestamp",
         return_value=timestamp,
     ):
         async_fire_time_changed(hass, utcnow() + timedelta(hours=48))