Vladimir Kolesnikov

<p>Adds the referrering link from which a commenting user came from to comment notifications and Comments screen in the Admin panel of your site.</p>
<p>This is an extended version of Donncha’s <a href="https://wordpress.org/extend/plugins/comment-referrers/" rel="ugc">Comment Referrers</a> plugin</p>
<p>ICS Comment Referrer:</p>
<ul>
<li>uses both server (HTTP Referer header) and client (works if JavaScript enabled) referrer identification;</li>
<li>cryptographically protects the server-generated referrer field;</li>
<li>adds referring links to comment notifications;</li>
<li>shows referring links in Admin Panel » Comments.</li>
</ul>
<h3>Contributors</h3>
<ul>
<li><a href="http://blog.sjinks.pro/" rel="nofollow ugc">Vladimir Kolesnikov</a></li>
<li><a href="https://launchpad.net/~rahermosillac" rel="nofollow ugc">Ricardo A. Hermosilla Carrillo</a></li>
<li><a href="https://launchpad.net/~pierre-slamich" rel="nofollow ugc">Pierre Slamich</a></li>
<li><a href="https://launchpad.net/~sunder67" rel="nofollow ugc">zeugma</a></li>
<li><a href="https://launchpad.net/~elkan76" rel="nofollow ugc">Mauricio Peñaloza S.</a></li>
</ul>
<h3>Bug Reports</h3>
<p>Please use <a href="https://bugs.launchpad.net/wp-plugin-comment-referrer/+filebug" rel="nofollow ugc">Launchpad</a> to report any bugs.</p>


ICS Comment Referrer

Adds the referrering link from which a commenting user came from to comment notifications and Comments screen in the Admin panel of your site.

Andy Stratton

bmoredrew

WP Maintainer

Sizeable Labs

<p>Referer spam has been growing and clogging up website analytics data (such as Google Analytics) with fraudulent traffic statistics. Millions of users are reporting issues and it has become a major nuisance.</p>
<p>Block these malicious sites easily. All major referer spam domains blocked out of the box and you can customize the domain keyword lists to block any domains you wish. Brought to you by the team of WordPress experts at WP Maintainer.</p>


Referer Spam Blocker

Block/blacklist known (and custom) spam referring domains at the WordPress level with an HTTP 403 Forbidden page.

ICS Comment Referrer vs Referer Spam Blocker