Yes NY Jester, that snippet would work for banning 1 domain.
Code:
RewriteCond %(HTTP_REFERER) ^http(s)?://(www\.)?http://www.asktiava.com/search/.$[NC,OR]
this will actually look for
http://http://www.asktiava as the referrer which is probably not what you are seeing
as NY Jester says:
Code:
RewriteCond %(HTTP_REFERER) ^http(s)?://(www\.)?asktiava.com/search/[NC,OR]
I would get rid of the .$ at the end as it would force a match of 1 character -- regexp is left matched and would basically say that this needs to be anchored to the left. Same thing about the http(s)? that means that the url could be http:// or https:// the (www\.)? means that the www. is optional.