diff --git a/datadog_checks_base/datadog_checks/base/checks/openmetrics/v2/base.py b/datadog_checks_base/datadog_checks/base/checks/openmetrics/v2/base.py
index 1a476138157de..6552a1723c4d1 100644
--- a/datadog_checks_base/datadog_checks/base/checks/openmetrics/v2/base.py
+++ b/datadog_checks_base/datadog_checks/base/checks/openmetrics/v2/base.py
@@ -8,6 +8,7 @@
 
 from datadog_checks.base.checks import AgentCheck
 from datadog_checks.base.errors import ConfigurationError
+from datadog_checks.base.utils.http_exceptions import HTTPRequestError, HTTPStatusError
 from datadog_checks.base.utils.tracing import traced_class
 
 from .scraper import OpenMetricsScraper
@@ -71,7 +72,8 @@ def check(self, _):
             with self.adopt_namespace(scraper.namespace):
                 try:
                     scraper.scrape()
-                except (ConnectionError, RequestException) as e:
+                # Pairs requests-native + library-agnostic exceptions; simplify to HTTPError after migration.
+                except (ConnectionError, RequestException, HTTPRequestError, HTTPStatusError) as e:
                     self.log.error("There was an error scraping endpoint %s: %s", endpoint, str(e))
                     raise type(e)("There was an error scraping endpoint {}: {}".format(endpoint, e)) from None
 
diff --git a/datadog_checks_base/datadog_checks/base/utils/http_protocol.py b/datadog_checks_base/datadog_checks/base/utils/http_protocol.py
index f6fb97ca5c849..4d103de5930c3 100644
--- a/datadog_checks_base/datadog_checks/base/utils/http_protocol.py
+++ b/datadog_checks_base/datadog_checks/base/utils/http_protocol.py
@@ -13,6 +13,11 @@ class HTTPResponseProtocol(Protocol):
     text: str
     headers: Mapping[str, str]
 
+    @property
+    def ok(self) -> bool: ...
+    @property
+    def reason(self) -> str: ...
+
     def json(self, **kwargs: Any) -> Any: ...
     def raise_for_status(self) -> None: ...
     def close(self) -> None: ...
diff --git a/datadog_checks_base/datadog_checks/base/utils/http_testing.py b/datadog_checks_base/datadog_checks/base/utils/http_testing.py
index 3a509f2673f3f..83b6a85c263d2 100644
--- a/datadog_checks_base/datadog_checks/base/utils/http_testing.py
+++ b/datadog_checks_base/datadog_checks/base/utils/http_testing.py
@@ -3,7 +3,9 @@
 # Licensed under a 3-clause BSD style license (see LICENSE)
 import json
 from datetime import timedelta
+from http.client import responses as http_responses
 from io import BytesIO
+from textwrap import dedent
 from typing import Any, Iterator
 from unittest.mock import MagicMock
 
@@ -41,7 +43,7 @@ def __init__(
             (isinstance(content, str) and content.startswith('\n'))
             or (isinstance(content, bytes) and content.startswith(b'\n'))
         ):
-            content = content[1:]
+            content = dedent(content[1:]) if isinstance(content, str) else content[1:]
 
         self._content = content.encode('utf-8') if isinstance(content, str) else content
         self.status_code = status_code
@@ -62,6 +64,16 @@ def content(self) -> bytes:
     def text(self) -> str:
         return self._content.decode('utf-8')
 
+    @property
+    def ok(self) -> bool:
+        # Transitional: mirrors requests.Response.ok for current production code.
+        # httpx uses is_success/is_client_error/is_server_error instead.
+        return self.status_code < 400
+
+    @property
+    def reason(self) -> str:
+        return http_responses.get(self.status_code, '')
+
     def json(self, **kwargs: Any) -> Any:
         return json.loads(self.text, **kwargs)
 
diff --git a/datadog_checks_base/tests/base/utils/http/test_http_testing.py b/datadog_checks_base/tests/base/utils/http/test_http_testing.py
index 81d49bc17b653..32a9036db7080 100644
--- a/datadog_checks_base/tests/base/utils/http/test_http_testing.py
+++ b/datadog_checks_base/tests/base/utils/http/test_http_testing.py
@@ -70,3 +70,25 @@ def test_mock_response_normalize_leading_newline():
     response = MockHTTPResponse(content=content)
 
     assert response.text == 'Actual content'
+
+
+def test_mock_response_normalize_leading_newline_with_indent():
+    content = """
+        line one
+        line two
+    """
+    response = MockHTTPResponse(content=content)
+    assert response.text == "line one\nline two\n"
+
+
+def test_mock_response_ok_property():
+    assert MockHTTPResponse(status_code=200).ok is True
+    assert MockHTTPResponse(status_code=399).ok is True
+    assert MockHTTPResponse(status_code=400).ok is False
+    assert MockHTTPResponse(status_code=500).ok is False
+
+
+def test_mock_response_reason_property():
+    assert MockHTTPResponse(status_code=200).reason == 'OK'
+    assert MockHTTPResponse(status_code=404).reason == 'Not Found'
+    assert MockHTTPResponse(status_code=999).reason == ''
diff --git a/traefik_mesh/changelog.d/22676.changed b/traefik_mesh/changelog.d/22676.changed
new file mode 100644
index 0000000000000..f39347eb80c40
--- /dev/null
+++ b/traefik_mesh/changelog.d/22676.changed
@@ -0,0 +1 @@
+Remove unused ``url`` parameter from ``get_version``.
\ No newline at end of file
diff --git a/traefik_mesh/datadog_checks/traefik_mesh/check.py b/traefik_mesh/datadog_checks/traefik_mesh/check.py
index a1e1549f9c566..ad1394c8a9aca 100644
--- a/traefik_mesh/datadog_checks/traefik_mesh/check.py
+++ b/traefik_mesh/datadog_checks/traefik_mesh/check.py
@@ -8,6 +8,9 @@
 import requests
 
 from datadog_checks.base import AgentCheck, OpenMetricsBaseCheckV2
+from datadog_checks.base.utils.http_exceptions import HTTPConnectionError as _HTTPConnectionError
+from datadog_checks.base.utils.http_exceptions import HTTPStatusError
+from datadog_checks.base.utils.http_exceptions import HTTPTimeoutError as _HTTPTimeoutError
 from datadog_checks.traefik_mesh.config_models import ConfigMixin
 from datadog_checks.traefik_mesh.metrics import METRIC_MAP, RENAME_LABELS
 
@@ -84,7 +87,7 @@ def get_mesh_ready_status(self):
 
         return node_status
 
-    def get_version(self, url):
+    def get_version(self):
         """Fetches Traefik Proxy version from the Proxy API"""
 
         version_url = urljoin(self.traefik_proxy_api_endpoint, PROXY_VERSION)
@@ -112,10 +115,15 @@ def _get_json(self, url):
             resp = self.http.get(url)
             resp.raise_for_status()
             return resp.json()
-        except (requests.exceptions.HTTPError, requests.exceptions.ConnectionError) as e:
+        except (
+            requests.exceptions.HTTPError,
+            requests.exceptions.ConnectionError,
+            HTTPStatusError,
+            _HTTPConnectionError,
+        ) as e:
             self.warning(
                 "Couldn't connect to URL: %s with exception: %s. Please verify the address is reachable", url, e
             )
-        except requests.exceptions.Timeout as e:
+        except (requests.exceptions.Timeout, _HTTPTimeoutError) as e:
             self.warning("Connection timeout when connecting to %s: %s", url, e)
         return None
diff --git a/traefik_mesh/tests/test_unit.py b/traefik_mesh/tests/test_unit.py
index 6a7cb29d2507f..c6c3acbc697df 100644
--- a/traefik_mesh/tests/test_unit.py
+++ b/traefik_mesh/tests/test_unit.py
@@ -5,6 +5,9 @@
 import pytest
 
 from datadog_checks.base.constants import ServiceCheck
+from datadog_checks.base.utils.http_exceptions import HTTPConnectionError as _HTTPConnectionError
+from datadog_checks.base.utils.http_exceptions import HTTPStatusError
+from datadog_checks.base.utils.http_exceptions import HTTPTimeoutError as _HTTPTimeoutError
 from datadog_checks.dev.utils import assert_service_checks, get_metadata_metrics
 from datadog_checks.traefik_mesh import TraefikMeshCheck
 
@@ -125,3 +128,21 @@ def test_submit_version(datadog_agent, dd_run_check, mock_http_response):
     }
 
     datadog_agent.assert_metadata('test:123', version_metadata)
+
+
+def test_get_json_handles_http_status_error():
+    check = TraefikMeshCheck('traefik_mesh', {}, [OM_MOCKED_INSTANCE])
+    with mock.patch('requests.Session.get', side_effect=HTTPStatusError('404 Client Error')):
+        assert check._get_json('http://example.com/api') is None
+
+
+def test_get_json_handles_http_connection_error():
+    check = TraefikMeshCheck('traefik_mesh', {}, [OM_MOCKED_INSTANCE])
+    with mock.patch('requests.Session.get', side_effect=_HTTPConnectionError('Connection refused')):
+        assert check._get_json('http://example.com/api') is None
+
+
+def test_get_json_handles_http_timeout_error():
+    check = TraefikMeshCheck('traefik_mesh', {}, [OM_MOCKED_INSTANCE])
+    with mock.patch('requests.Session.get', side_effect=_HTTPTimeoutError('Read timed out')):
+        assert check._get_json('http://example.com/api') is None