Technical Solutions
As with e-mail spam, web site operators who receive unwanted referer spam may respond using filtering and blocking. A simple attempt at rendering this form of spam ineffective is to prevent the search engine spiders from crawling the site logs by moving them to a non-public area such as a password-protected area, by using a robot exclusion file, or by appending the nofollow value to the links.
Read more about this topic: Referer Spam
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