Značka tykača: altcha
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OpenPorte Spam Protection
Stop spam without CAPTCHAs. Proof-of-Work protection for your site. Open-source, self-hosted, privacy-first.
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GateCHA CAPTCHA
Self-hosted ALTCHA proof-of-work CAPTCHA via GateCHA. Protects WordPress forms without cookies, fingerprinting, or third-party services.