itthinx

<p>Activate and the Captcha will appear on the affiliate registration form when the <a href="https://wordpress.org/plugins/captcha/" rel="ugc">Captcha</a> plugin is activated.</p>
<p>Requirements:</p>
<ul>
<li><a href="https://wordpress.org/plugins/affiliates/" rel="ugc">Affiliates</a> or <a href="http://www.itthinx.com/shop/affiliates-pro/" rel="nofollow ugc">Affiliates Pro</a> or <a href="http://www.itthinx.com/shop/affiliates-enterprise/" rel="nofollow ugc">Affiliates Enterprise</a></li>
<li><a href="https://wordpress.org/plugins/captcha/" rel="ugc">Captcha</a></li>
</ul>


Affiliates Captcha

Affiliates, Affiliates Pro and Affiliates Enterprise integration with the Captcha plugin.

kwielo

<p>This plugin blocks referrer spam that you see in your page statistics. This problem is also widely known as “spam referrer attacks”.</p>
<h4>The biggest list of spammers</h4>
<p>Plugin uses the biggest public list of URLs that are considered as a spamming services; <strong>over 2200 URLs</strong> right now! List is provided by Matomo, the biggest open source analytics system. You can find it <a href="https://github.com/matomo-org/referrer-spam-list" rel="nofollow ugc">here</a>; you can also contribute to that list by adding your own urls.</p>
<h4>Custom URLs</h4>
<p>Yep, you can add your own URLs to blacklist! In a flash! So easy…</p>
<h4>No annoying updates!</h4>
<p>This plugin uses service located on our servers to update the list of spammers, hence <strong>you do not have to update the plugin</strong> itself whenever list is updated.</p>
<h4>No need of an account!</h4>
<p>As it is said before, this plugin uses endpoint to get the actual list. That endpoint points to author’s server (https://srs.wielo.co), but there is <strong>no need of an account</strong> to use it. And no worries, this plugin <strong>do not</strong> collect any data about the users 🙂</p>
<h4>Hassle-free!</h4>
<p>You can see the current list of blocked websites in the admin panel, under “Settings/Referral Spam”. There is also time of the next update. That is it! No configuration needed! 🙂</p>
<h4>Free of any charges!</h4>
<p>It is completely free! Enjoy! 🙂</p>


Stop Referrer Spam

I's cluttered with Spam Referrer, and then tried this plugin with some doubt in mind though. :)

But found it's working like a charm.

Thank you for the effort. <3 Keep updating and fixing things. Good luck.

Worked like a charm

If you see referral spam in your analytics and would like to block it, this plugin is for you.

Affiliates Captcha vs Stop Referrer Spam