Preventing Site Hijacking

[riospace]

I did a search on Alexa and noticed that to top result for my domain name came up from another site. When I clicked on the link in Alexa it went directly to my site.

Example of Alexa Listing:

MySite.Com
Traffic Rank: 3,283
hijacker.com/top.php?tc&http://www.MySite.com/directory... - Site info

I have been dealing with hijacking a lot lately and usually I can stop a site by denying the ip address. But, it does not work for this site because of how it redirects to my site. Blocking the ip address of this hijacking site has no effect.

My question is how can I stop this site from hijacking my site and stealing search engine results etc. from me?

This hijacking thing has gotten out of control and this is the only thing that I can pinpoint as to the cause of my huge drop in search engine results (duplicate content). These hijacking sites are showing up higher than my actual site in Alexa and Google. This is crazy.

[riospace]

Is this question in the wrong forum or is it just a stupid one?

I really want some guidence with this issue. I have read all of the posts that I could find on hijacking and have not seen a solution to this kind of hijacking. If anyone knows of a way to stop this type of hijacking, please let me know.

[stapel]

Have you tried blocking by URL? Something like:

RewriteCond %{HTTP_REFERER}!^http://www.badsite.com/.*$ [NC,OR] 
RewriteCond %{HTTP_REFERER}!^http://badsite.com/.*$ [NC] 
RewriteRule ^.* - [F]

I could be wrong, of course....

Eliz.

Note: There should be an emtpy space between the end of the "{HTTP_REFERER}" and the explanation point. For some reason, this forum's script is stripping out that space.