Google AI ModeSep 17, 2026
ALTCHA provides an open-source, ALTCHA privacy-friendly challenge-based spam filter.
Data as of Oct 5, 2026Based on 45,223 AI responses
Reviewed by Dimitry Apollonsky ·
AI summary
ALTCHA is a privacy-first CAPTCHA alternative that blocks bots and form spam without cookies or tracking.
<1%No change
of AI answers about ALTCHA and its rivals. Since Jul 5
Question: We are receiving spam submissions in our lead forms. Who offers "honeypot" fields or captcha alternatives?
Google AI ModeSep 17, 2026
ALTCHA provides an open-source, ALTCHA privacy-friendly challenge-based spam filter.
Since Jul 5
Common descriptions
open-source · privacy-first · privacy-focused · gdpr-compliant · lightweight · privacy-friendly
altcha.org 53%Other sites 47%
Question: We are receiving spam submissions in our lead forms. Who offers "honeypot" fields or captcha alternatives?
Google AI ModeSep 13, 2026
ALTCHA: An open-source, privacy-focused, and GDPR-compliant alternative that also uses local proof-of-work mechanics to verify form submissions without routing data to big tech servers.
Excerpts where ALTCHA appeared in the AI's answer
ALTCHA provides an open-source, ALTCHA privacy-friendly challenge-based spam filter.
ALTCHA: An open-source, privacy-focused, and GDPR-compliant alternative that also uses local proof-of-work mechanics to verify form submissions without routing data to big tech servers.
