Block 250+ spam sites, such as semalt.com and 4webmasters.org! Keep your website safe and your Google Analytics statistics clean and accurate.

Roger Rodrigo

Keep your WordPress site safe and away from referrer spam attacks!
Not compatible with multisite yet
This plugin blocks spam sites and referrer spammers from reaching your website, keeping your Google Analytics statistics clean and accurate. It also improves the overall performance of your site by keeping away these unwanted referrers from your website, which means that your web server won’t need to consume resources when a referrer spammer visits your site!
<h4>Why you should use this plugin?</h4>
It is very common to be attacked by referrer spammers. Referrer spam consists in making repeated web site requests using a fake referer URL to the site the spammer wishes to advertise. 
Sites that publish their access logs, including referrer statistics, will then inadvertently link back to the spammer’s site. These links will be indexed by search engines as they crawl the access logs. 
This benefits the spammer because the free link improves the spammer site’s search engine ranking owing to link-counting algorithms that search engines use.
This is not really harmful for your site or your site’s search engine ranking. But it is very annoying when you try to analize your Google Analytics statistics due to big amounts of visits coming from referrer spammers.
<h4>How can I check if my site is being attacked by referrer spammers?</h4>
It is very easy to check if your site is being attacked by referrer spamers. And I bet you that more than likely your site has some suscpicious visits that could be banned using this plugin.
<ol>
<li>Open your Google Analytics account</li>
<li>Select the statistics of the site that you want to check</li>
<li>Expand <code>Acquisition</code> menu</li>
<li>Expand <code>All Traffic</code> menu</li>
<li>Go to <code>Referrals</code> menu</li>
<li>Underneath the graphic you will see the list of referred traffic</li>
<li>If you see weird domains like trafficmonetize.org, webmonetizer.net or buttons-for-website.com it means that your site is suffering referrer spam attacks</li>
</ol>
<h4>Compatibility:</h4>
This plugin is fully compatible with any webserver by default. 
Its adaptability ensures that will work with any version of either apache, nginx, iis or lighttpd webserver.
<ul>
<li>When apache is used, the plugin adds specific rules into .htaccess file.</li>
<li>When apache is not used, the plugin automatically recognizes it and uses internal code rules to keep away spammers.</li>
</ul>
Not compatible with multisite yet
Requires at least WordPress 3.2 and PHP 5.3
<h4>The most updated Referrer Spam List:</h4>
Every week, this plugin updates the list of referrer spammers from <a href="https://github.com/piwik/referrer-spam-blacklist" rel="nofollow ugc">this community-contributed list</a> of <a href="http://en.wikipedia.org/wiki/Referer_spam" rel="nofollow ugc">referrer spammers</a>.
Please show your support for this plugin by giving it a <a href="https://wordpress.org/support/view/plugin-reviews/wp-block-referrer-spam?rate=5?rate=5#postform" rel="ugc">rating</a>
Development is on GitHub: https://github.com/rrodrigonuez/WP-Block-Referrer-Spam
Pull requests are more than welcome!

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