RewriteEngine On RewriteCond %{HTTP_USER_AGENT} ^libwww-perl [OR] RewriteCond %{HTTP_USER_AGENT} ^Bot\ mailto:craftbot@yahoo.com [OR] RewriteCond %{HTTP_USER_AGENT} ^ChinaClaw [OR] RewriteCond %{HTTP_USER_AGENT} ^Custo [OR] RewriteCond %{HTTP_USER_AGENT} ^Mozilla/4\.0\ \(compatible\) [OR] RewriteRule ^.* - [F,L]