diff --git a/tools/easylist-extend.php b/tools/easylist-extend.php
index 88ce798c..7d0c2f75 100644
--- a/tools/easylist-extend.php
+++ b/tools/easylist-extend.php
@@ -84,6 +84,7 @@ $ARR_REGEX_LIST = array(
     '/^(\S+\.)?sax[0-9ns]?\.sina\.com\.cn/' => null,
     '/delivery([0-9]{2}|dom|modo).com$/' => null,
     '/^(\S+\.)?[c-s]ads(abs|abz|ans|anz|ats|atz|del|ecs|ecz|ims|imz|ips|ipz|kis|kiz|oks|okz|one|pms|pmz)\.com/' => null,
+//    '/^(\S+\.)?[^\.]{48,}\.[a-z]+(\.cn)?$/' => null,
 );
 
 //对通配符匹配或正则匹配增加的额外赦免规则