Block Referer Spam

Block Referer Spam is a plugin that blocks websites that use Referer Spam to promote their content. The plugin uses bots that simulate human behavior and can even show up in Google Analytics. It does not require any special configuration after installation and offers automatic or manual updates of the referer spam list, the option of adding custom referer spam hosts, and two methods of blocking. Pro features include automatic syncing of custom block lists across all sites and additional curated block lists. Examples of blocked spam include semalt, buttons-for-website, and ilovevitaly.