GateCHA CAPTCHA v1.5.0
Self-hosted ALTCHA proof-of-work CAPTCHA via GateCHA. Protects WordPress forms without cookies, fingerprinting, or third-party services.
Tags / proof-of-work
Proof of Work
6 WordPress plugins tagged “Proof of Work”. Every result links to a crawlable PlugIndex profile.
Privacy CAPTCHA for Cap v1.6.2
Privacy-friendly spam protection for comments, login, registration, WooCommerce, and Gravity Forms, powered by your own Cap server.
Anonympins Bot Mitigation with Proof-of-Work v0.8.5
High-performance client-side anti-bot protection and Proof-of-Work challenge verification for WordPress without third-party CAPTCHA.
Cardea – Proof-of-Work Comment Spam Protection v1.0.2
Lightweight, zero-dependency Proof-of-Work anti-spam protection for WordPress comments.
Crovly – Proof of Work Captcha & Spam Protection v1.0.6
Privacy-first, Proof of Work captcha for WordPress. No image puzzles, no tracking. 22+ integrations included.
HashCash – Proof of Work CAPTCHA v1.0.10
Invisible Proof-of-Work CAPTCHA. No checkboxes, no image grids, no Google, no tracking. Just spam protection that gets out of the way.