diff --git a/PyFunceble/checker/availability/extra_rules.py b/PyFunceble/checker/availability/extra_rules.py
index 5d86057e..b0cb69f1 100644
--- a/PyFunceble/checker/availability/extra_rules.py
+++ b/PyFunceble/checker/availability/extra_rules.py
@@ -85,6 +85,7 @@ def __init__(self, status: Optional[AvailabilityCheckerStatus] = None) -> None:
                 (self.__switch_to_down_if, 410),
             ],
             r"\.24\.eu$": [(self.__switch_to_down_if, 503)],
+            r"\.altervista\.org$": [(self.__switch_to_down_if, 403)],
             r"\.angelfire\.com$": [(self.__switch_to_down_if, 404)],
             r"\.blogspot\.": [self.__handle_blogspot],
             r"\.canalblog\.com$": [(self.__switch_to_down_if, 404)],
diff --git a/docs/components/special-rules.rst b/docs/components/special-rules.rst
index 139d5f0b..ac4ab060 100644
--- a/docs/components/special-rules.rst
+++ b/docs/components/special-rules.rst
@@ -36,6 +36,16 @@ supplied as :code:`INACTIVE`.
 
 ------
 
+:code:`*.altervista.org`
+""""""""""""""""""""""""
+
+.. versionadded:: 4.1.0b13
+
+Any subjects matching the given pattern and the :code:`403` status code are
+supplied as :code:`INACTIVE`.
+
+------
+
 :code:`*.angelfire.com`
 """""""""""""""""""""""