Show HN: Replacing CAPTCHAs with adaptive proof-of-work in WordPress

Category: security

Tags: proof-of-work, captcha-alternative, wordpress-plugin, spam-prevention

Score: 5.8/10 (Innovation: 6, Technical: 6, Documentation: 5, Utility: 6)

This WordPress plugin replaces traditional CAPTCHAs with an invisible adaptive proof-of-work challenge, where visitors' browsers perform a small computation to prove they are human. It automatically protects all forms on a WordPress site, including logins, registrations, comments, and popular form plugins, without requiring per-form integrations. The approach reduces user friction while imposing computational costs on spam bots, and it can be extended to custom forms via a simple learning mode.

Target audience: WordPress site administrators, web developers, agencies

Repository: https://wordpress.org/plugins/gdpr-compliant-recaptcha-for-all-forms/ · TypeScript · NOASSERTION · 11776 stars

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