Altcha

Security Visit altcha.org

Altcha is a spam and abuse protection solution for websites and apps, offering a privacy-friendly Captcha and other tools designed with GDPR compliance to provide strong security while safeguarding user privacy.

2 detections

2 websites tracked

Updated 13 May 2026

Websites Using Altcha

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salesviewer.com

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Alternatives to Altcha

reCAPTCHA20838 sites AWS WAF1985 sites Imperva1737 sites Imperva Incapsula1588 sites Barracuda Networks1233 sites Sucuri843 sites Cleantalk Spam Protect553 sites Stop User Enumeration435 sites DDoS-Guard212 sites hCaptcha172 sites

Compare Altcha

Altcha vs reCAPTCHA→Altcha vs AWS WAF→Altcha vs Imperva→Altcha vs Imperva Incapsula→Altcha vs Barracuda Networks→

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