Links from an external page that i am getting but cant see my site url on these sites seems to me a search engine, please any one can explain. http://info-phentermine.olo.cc 2018 2018 http://soma.olo.cc 728 728 http://casino-online.i-blog.net 724 724 http://buy-viagra.2xt.de 715 715 http://cialis.at.tut.by 676 676 http://vicodin-online.at.tut.by 637 637 http://levitra.at.tut.by 635 635 http://vicodin.load2.de 595 595 Regards.
i can say that they are spam site, and not real refferals, they use a technique called "Refferer Spam" and they can be blocked via .htaccess if you search it a bit.
heres some info on referer spam http://www.spywareinfo.com/articles/referer_spam/ and heres some on .htaccess http://www.javascriptkit.com/howto/htaccess.shtml
I've had the same issue with referrer log spamming - most annoying are the sex and gambling sites ...
So the only goal of those sites is to show in other websites logs, hoping that those are accessible to search engines, and all of this in order to get pseudo backlinks?