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ALTCHA - Cybersecurity Tool

Cybersecurity

ALTCHA

ALTCHA

ALTCHA is a next-gen Captcha and bot protection solution for websites and apps, designed for privacy, accessibility, and compliance.

Cost

Free Tier

Rating

People love it

Time to value

Quick Setup (< 1 hour)

You can use ALTCHA to protect your website forms and user registration from bots and spam attacks without tracking users or sharing their data with third parties. It provides proof-of-work verification that works invisibly for real users while blocking automated traffic. The system adapts security levels based on risk and includes audio challenges for accessibility. You can self-host it completely, ensuring GDPR compliance and full control over your security data.

What ALTCHA does

Install captcha widget on website formsConfigure proof-of-work difficulty levelsSet up rate limiting for form submissionsDeploy self-hosted protection on your serversIntegrate with existing WordPress formsMonitor bot detection analytics and logsCustomize captcha appearance and behaviorConfigure geographic IP blocking rulesSelf-hosted with no external data sharingInvisible proof-of-work verification for real usersAudio challenges for screen reader accessibilitySupports 50+ languages with RTL text30KB bundle size loads instantlyMachine learning threat intelligenceGDPR and WCAG 2.2 compliantWordPress plugin with firewall protection

Pricing breakdown

PlanPrice10 seats / yr
Open Source$0
Enterprise Sentinel$9.00 / mo$1,080

Annual estimates assume continuous billing at the listed list price. Volume discounts typical above 50 seats.

Frequently asked

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