ALTCHA and AI agents.
ALTCHA is a bot check a site puts in front of its pages or forms. Each site decides where it shows.
Most stops reflect each site's own settings, not the vendor's defaults.
Our signed agent met it at 3 products. It stopped our agent at 1 and let it through at 2. Drives from 12 to 24 Oct 2026.
The numbers
Of the 151 products we drove.
Every product where our agent met it.
By product name. Open one to see the check as our agent met it.
What an owner can change.
Skip the CAPTCHA for signed agents (valid Web Bot Auth signature), or offer a documented sign-up API.
More on bot checks.
Check if this stops agents in your product.
Free: what an agent finds on your site and any wall in its way.