georf

<p>This plugin uses JavaScript to verify that commentators are persons rather than bots.</p>
<p>If a user’s browser doesn’t support or allow JavaScript, so-called CAPTCHAs are used. The commentator has to enter a fruit name given as image before sending his or her comment.</p>


Obstcha

Decent comment verification to avoid spam without user interaction.

pluginkollektiv

<p>Few users are familiar with the comment block list built into WordPress. Located in the WordPress admin area under “Settings”—“Discussion”, that block list for incoming comments accepts values (words) to identify spam by.</p>
<p>Additionally to plugins like <a href="https://wordpress.org/plugins/antispam-bee/" rel="ugc">Antispam Bee</a> in order to fight spam successfully a curated comment block list is recommendable. You can either update the list manually, or utilize a very detailed global <a href="https://github.com/splorp/wordpress-comment-blacklist" rel="nofollow ugc">comment block list</a> that gets updated on a regular basis.</p>
<p>Block List Updater has been developed to keep your comment block list in your WordPress installation up to speed with the curated global list on GitHub.</p>
<p>The plugin will check the global comment block list on GitHub multiple times a day. Whenever new anti-spam values have been added to the global list, Block List Updater will read the global list and update your WordPress database accordingly. While the check-up process will run several times a day, the plugin will only update the database when it detects an actual change of the global comment block list on GitHub.</p>
<h3>Support</h3>
<ul>
<li>Community support via the <a href="https://wordpress.org/support/plugin/blacklist-updater" rel="ugc">support forums on wordpress.org</a></li>
<li>We don’t handle support via e-mail, Twitter, GitHub issues etc.</li>
</ul>
<h3>Contribute</h3>
<ul>
<li>Active development of this plugin is handled <a href="https://github.com/pluginkollektiv/blacklist-updater" rel="nofollow ugc">on GitHub</a>.</li>
<li>Pull requests for documented bugs are highly appreciated.</li>
<li>If you think you’ve found a bug (e.g. you’re experiencing unexpected behavior), please post at the <a href="https://wordpress.org/support/plugin/blacklist-updater" rel="ugc">support forums</a> first.</li>
<li>If you want to help us translate this plugin you can do so <a href="https://translate.wordpress.org/projects/wp-plugins/blacklist-updater" rel="nofollow ugc">on WordPress Translate</a>.</li>
</ul>
<h3>Credits</h3>
<ul>
<li>Author: <a href="https://sergejmueller.github.io/" rel="nofollow ugc">Sergej Müller</a></li>
<li>Maintainers: <a href="https://pluginkollektiv.org/" rel="nofollow ugc">pluginkollektiv</a></li>
</ul>


Block List Updater

Automatic updating of the comment block list in WordPress with antispam keys from GitHub.

Obstcha vs Block List Updater