Completely disables all backend comment submissions (wp-comments-post.php, REST API, XML-RPC) to stop ghost comment spam.
Alternatives to Radical
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
Relevant replacements
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
The best anti-spam protection to block spam comments and spam in a contact form. The most trusted antispam solution for WordPress and WooCommerce.
Block spam in Elementor, Contact Form 7, JetFormBuilder, Ninja Forms, WooCommerce and comments with keyword, link and email checks.
En Spamv1.1
Block spam with cookies and JavaScript. All Spambots will remain away from your blog. Without settings or Captcha, install and forget the spam.
Auto-Close keeps your site clean by automatically closing comments, pingbacks, and trackbacks—so you can focus on content, not cleanup.
Stops spam in comments, registration, WooCommerce and contact forms. No CAPTCHA, no external services. Formerly WP Spam Protecter. Free.
A simple and lightweight yet rock-solid plugin that blocks comment spam using multiple automatic detection methods.
Automatically remove spam comments without Akismet. Universal spam detection that blocks junk, hidden links, fake names, gibberish, and automated subm …
Advanced antispam for comments, registrations & contact forms. No CAPTCHA, plus email validation and honeypot. We catch spam others miss!
BlueFairy AntiSpamv1.2.2
We hate spam. No CAPTCHAs. No third-party puzzles. Just invisible traps that catch bots and let real people through.