Light and invisible protection against basic automated comment spam. Pings and trackbacks check for real backlinks.
Alternatives to BotBlocker
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
Stop comment spam, fake registrations and form bots with invisible behavioral verification — no puzzles, no checkboxes, zero PII.
A simple math captcha plugin for comments, login, registration, WooCommerce reviews, and Contact Form 7.
Protects your site with a lightweight math CAPTCHA, requiring visitors to solve a simple question before accessing your content.
Replace CAPTCHAs with bank-verified human identity. One-click verification. Users verify once, trusted everywhere.
Replace boring CAPTCHAs with fun 10-second mini-games. Bot protection that doesn't frustrate real users.
Invisible behavioral spam filter for comments and forms. No CAPTCHA, no cookies, no external service. Pairs well with your anti-spam plugin.
Math CAPTCHA for CF7, WPForms, and any HTML form. Zero config — install, add shortcode or use auto inject from settings.
Privacy-friendly spam protection for comments, login, registration, WooCommerce, and Gravity Forms, powered by your own Cap server.
Privacy-first, Proof of Work captcha for WordPress. No image puzzles, no tracking. 22+ integrations included.