diff --git a/homeassistant/components/gdacs/diagnostics.py b/homeassistant/components/gdacs/diagnostics.py
new file mode 100644
index 00000000000..435e28ca1ae
--- /dev/null
+++ b/homeassistant/components/gdacs/diagnostics.py
@@ -0,0 +1,39 @@
+"""Diagnostics support for GDACS integration."""
+
+from __future__ import annotations
+
+from typing import Any
+
+from aio_georss_client.status_update import StatusUpdate
+
+from homeassistant.components.diagnostics import async_redact_data
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import CONF_LATITUDE, CONF_LONGITUDE
+from homeassistant.core import HomeAssistant
+
+from . import GdacsFeedEntityManager
+from .const import DOMAIN, FEED
+
+TO_REDACT = {CONF_LATITUDE, CONF_LONGITUDE}
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, config_entry: ConfigEntry
+) -> dict[str, Any]:
+    """Return diagnostics for a config entry."""
+    data: dict[str, Any] = {
+        "info": async_redact_data(config_entry.data, TO_REDACT),
+    }
+
+    manager: GdacsFeedEntityManager = hass.data[DOMAIN][FEED][config_entry.entry_id]
+    status_info: StatusUpdate = manager.status_info()
+    if status_info:
+        data["service"] = {
+            "status": status_info.status,
+            "total": status_info.total,
+            "last_update": status_info.last_update,
+            "last_update_successful": status_info.last_update_successful,
+            "last_timestamp": status_info.last_timestamp,
+        }
+
+    return data
diff --git a/script/hassfest/manifest.py b/script/hassfest/manifest.py
index 1c01ee7cf58..185b2b178e4 100644
--- a/script/hassfest/manifest.py
+++ b/script/hassfest/manifest.py
@@ -117,7 +117,6 @@ NO_IOT_CLASS = [
 # https://github.com/home-assistant/developers.home-assistant/pull/1512
 NO_DIAGNOSTICS = [
     "dlna_dms",
-    "gdacs",
     "geonetnz_quakes",
     "hyperion",
     "nightscout",
diff --git a/tests/components/gdacs/snapshots/test_diagnostics.ambr b/tests/components/gdacs/snapshots/test_diagnostics.ambr
new file mode 100644
index 00000000000..5b6154307f7
--- /dev/null
+++ b/tests/components/gdacs/snapshots/test_diagnostics.ambr
@@ -0,0 +1,21 @@
+# serializer version: 1
+# name: test_entry_diagnostics
+  dict({
+    'info': dict({
+      'categories': list([
+      ]),
+      'latitude': '**REDACTED**',
+      'longitude': '**REDACTED**',
+      'radius': 25,
+      'scan_interval': 300.0,
+      'unit_system': 'metric',
+    }),
+    'service': dict({
+      'last_timestamp': None,
+      'last_update': '2024-09-05T15:00:00',
+      'last_update_successful': '2024-09-05T15:00:00',
+      'status': 'OK',
+      'total': 0,
+    }),
+  })
+# ---
diff --git a/tests/components/gdacs/test_diagnostics.py b/tests/components/gdacs/test_diagnostics.py
new file mode 100644
index 00000000000..3c6cf4080a6
--- /dev/null
+++ b/tests/components/gdacs/test_diagnostics.py
@@ -0,0 +1,33 @@
+"""Test GDACS diagnostics."""
+
+from __future__ import annotations
+
+from unittest.mock import patch
+
+import pytest
+from syrupy import SnapshotAssertion
+
+from homeassistant.core import HomeAssistant
+
+from tests.common import MockConfigEntry
+from tests.components.diagnostics import get_diagnostics_for_config_entry
+from tests.typing import ClientSessionGenerator
+
+
+@pytest.mark.freeze_time("2024-09-05 15:00:00")
+async def test_entry_diagnostics(
+    hass: HomeAssistant,
+    hass_client: ClientSessionGenerator,
+    snapshot: SnapshotAssertion,
+    config_entry: MockConfigEntry,
+) -> None:
+    """Test config entry diagnostics."""
+    with patch("aio_georss_client.feed.GeoRssFeed.update") as mock_feed_update:
+        mock_feed_update.return_value = "OK", []
+
+        config_entry.add_to_hass(hass)
+        await hass.config_entries.async_setup(config_entry.entry_id)
+        await hass.async_block_till_done()
+
+        result = await get_diagnostics_for_config_entry(hass, hass_client, config_entry)
+        assert result == snapshot