korchix

Comments Firewall is a powerful anti-spam plugin that provides enterprise-grade firewall protection for your WordPress comments. It blocks spam before it reaches your database, eliminating the need for manual moderation while maintaining full compatibility with your theme and existing comment system.
Key Features:
<ul>
<li>Remove Website Field: Completely eliminates the website field from comment forms to prevent URL submissions</li>
<li>Smart Link Blocking: Two-mode protection system (Balanced/Strict) blocks HTTP/HTTPS links with advanced pattern detection</li>
<li>Author Name Protection: Blocks links in commenter names to prevent sophisticated spam attempts</li>
<li>Submission Control: Granular control over comment submission methods (Form, REST API, XML-RPC)</li>
<li>Force URL Clearing: Ensures all author URLs are cleared on submission, regardless of input method</li>
<li>Statistics Dashboard: Real-time tracking of blocked spam comments with visual dashboard widget</li>
<li>Multilingual Ready: Full translations in 5 languages (English, Spanish, French, German, Arabic with RTL support)</li>
<li>Optional Branding Badge: Customizable “Protected by Comments Firewall” badge for your site</li>
<li>Theme Compatible: Works with any theme using standard WordPress comment hooks</li>
<li>Lightweight & Secure: Zero performance impact with admin-only security controls</li>
</ul>
How It Works:
The plugin operates on multiple levels to ensure comprehensive spam protection:
<ol>
<li>Form Level: Removes website fields from comment forms via WordPress hooks</li>
<li>Validation Level: Blocks submissions containing HTTP/HTTPS patterns before they’re saved</li>
<li>Method Level: Controls which submission methods (form, API, XML-RPC) are allowed</li>
</ol>
Perfect For:
<ul>
<li>Site owners experiencing backlink spam in comments</li>
<li>Site owners wanting to avoid the hassle of manually managing spam comments</li>
<li>Sites that want to maintain existing comments while preventing new spam</li>
<li>Anyone looking for a plugin that blocks all comments containing a link</li>
</ul>
The plugin maintains full backward compatibility and won’t disrupt your existing comment workflow or database structure.

Comments Firewall

Firewall protection for comments. Blocks spam before it reaches your database with automatic link filtering and zero manual moderation.

pmcdotcom

vickybiswas

Extends wordpress disable comments functionality for individual post types. Selectively disable/enable comments on individual posts while having the power to choose a default settings for each post type.
The project is hosted on github 
https://github.com/vickybiswas/pmc-disable-comments 
feel free to fork and send pull requests.
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PMC Disable Comments

Default wordpress functionality for disable comments extended for post type based control.

Comments Firewall vs PMC Disable Comments