diff --git a/not_cloudflare/list_error403.txt b/not_cloudflare/list_error403.txt
index 264f2642d..303fe319f 100644
--- a/not_cloudflare/list_error403.txt
+++ b/not_cloudflare/list_error403.txt
@@ -26,6 +26,7 @@ freegeoip.net
 freelancer.is
 freshworks.com
 geocaching.com
+ghostbrowser.com
 groupon.com
 gutenberg.org
 hoovers.com