Semalt.com Referrer spam

I’m not sure about this plugin, but I was having issues with traffic from semault.com a few months ago. I added this code to my .htaccess file (after backing it up first), and that was that:

# PREVENT REFERRALS FROM SEMAULT CRAWLER
RewriteEngine on
RewriteCond %{HTTP_REFERER} ^http(s)?://(www\.)?semalt.com.*$ [NC]
RewriteRule .* google.com [L]

Since this sites never reach your site .htaccess won’t work the best way to block them is using filters in GA, here a made an article on how to block them and a list of the most common Referrer Spam Sites that I am updating frequently.

[Link redacted]