i had them going crazy on two different sites - added this to my robots: (Replace xxx with name of the bot which we dare not speak it's name)
Code:
#xxxspider
User-agent: xxxspider
Disallow: /
#xxx
User-agent: xxx
Disallow: /
#xxxAgain
User-agent: xxxspider/2.0
Disallow: /
#majestic started showing up 10min after i blocked xxx
User-agent: MJ12bot
Disallow: /
(last one added because as soon as the xxx stopped showing up, another very similar bot took it's place)
also added this to .htaccess:
Code:
RewriteCond %{HTTP_USER_AGENT} xxxspider
RewriteRule ^.*$ http://127.0.0.1 [R,L]
RewriteCond %{HTTP_USER_AGENT} xxx
RewriteRule ^.*$ http://127.0.0.1 [R,L]
RewriteCond %{HTTP_USER_AGENT} xxx/2.0
RewriteRule ^.*$ http://127.0.0.1 [R,L]
can't remember for sure which one did the trick, but haven't seen "you know who" around for quite awhile..