I have several websites that get daily around 5% of visits from spam referrers. There is one strange things I noticed about this referrers: they show in Google Analytics, bu
We have found that using htaccess is a good way to stop these spams. I have implemented below solution on my clients site which is working really well so far. Best way is to stop them by contains clause, e.g. spam priceg.com check for priceg in referrer url.
Because many of these sites are creating sub domains and re hitting and when they tweak the url, hard coded conditions fail
RewriteCond %{HTTP_REFERER} (priceg) [NC,OR]
RewriteCond %{HTTP_REFERER} (darodar) [NC,OR]
It is explained in detail here