diff --git a/src/extensions/broken_link_fix.py b/src/extensions/broken_link_fix.py
index 46ed7fad2..02fcb6755 100644
--- a/src/extensions/broken_link_fix.py
+++ b/src/extensions/broken_link_fix.py
@@ -33,6 +33,9 @@ class _Status(StrEnum):
     BROKEN = "broken"
 
 
+IGNORED_HTTP_CODES: frozenset[int] = frozenset({401, 402, 403, 407, 418, 429, 451, 511})
+
+
 def process_result(self: CheckExternalLinksBuilder, result: CheckResult) -> None:
     """hook a custom process_result function.
 
@@ -45,10 +48,8 @@ def process_result(self: CheckExternalLinksBuilder, result: CheckResult) -> None
     """
     match result.status:
         case _Status.BROKEN:
-            """ Ignore client errors from sourceforge.io """
-            if re.match(
-                r"^https://[^/]+\.sourceforge\.io(/|$)", result.uri
-            ) and "403 Client Error" in str(result.message):
+            # Ignore selected HTTP errors that can be caused by access restrictions or rate limits.
+            if result.code in IGNORED_HTTP_CODES:
                 logger.info(darkgray("-ignored- ") + result.uri)
                 self.write_entry(
                     "ignored",