diff --git a/scripts/lib/white_domain_list.php b/scripts/lib/white_domain_list.php
index 6ba0d984..50c0b2b4 100644
--- a/scripts/lib/white_domain_list.php
+++ b/scripts/lib/white_domain_list.php
@@ -345,6 +345,7 @@ return array(
     'mo.res.wpscdn.cn' => 0, #636
     'qhres2.com' => 0, #638
     'rumble.com' => 0, #639
+    '37signals.com' => 0, #647