diff --git a/PyFunceble/checker/availability/extras/rules.py b/PyFunceble/checker/availability/extras/rules.py
index 9e08259f..cc5a5e5c 100644
--- a/PyFunceble/checker/availability/extras/rules.py
+++ b/PyFunceble/checker/availability/extras/rules.py
@@ -95,6 +95,7 @@ def __init__(self, status: Optional[AvailabilityCheckerStatus] = None) -> None:
             r"\.liveadvert\.com$": [(self.switch_to_down_if_status_code, 404)],
             r"\.myhuaweicloudz\.com$": [(self.switch_to_down_if_status_code, 403)],
             r"\.skyrock\.com$": [(self.switch_to_down_if_status_code, 404)],
+            r"\.squarespace.com$": [(self.switch_to_down_if_status_code, 404)],
             r"\.sz.id$": [(self.switch_to_down_if_status_code, 302)],
             r"\.translate\.goog$": [(self.switch_to_down_if_status_code, 403)],
             r"\.tumblr\.com$": [(self.switch_to_down_if_status_code, 404)],