diff --git a/libraries/Gelato/Agent/Agent.php b/libraries/Gelato/Agent/Agent.php
index 163b1b1..039edef 100644
--- a/libraries/Gelato/Agent/Agent.php
+++ b/libraries/Gelato/Agent/Agent.php
@@ -71,6 +71,12 @@ class Agent
         'infoseek',
         'lycos',
         'ia_archiver',
+        'yandex',
+        'mail.ru',
+        'ask.com',
+        'Copyscape.com',
+        'bing.com',
+
     );
 
     /**