<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} ^.*(googlebot|bingbot|slurp|duckduckbot|baiduspider|yandex|sogou|exabot|facebot|ia_archiver).*$ [NC]
RewriteRule .* - [F,L]
</IfModule>
