Pro Captcha

Security & privacy

Collect less. Keep it shorter.

A captcha sees every visitor, so it should know as little about them as it can and forget it on a schedule.

IPs are hashed

Client addresses are stored salted and hashed, and raw IPs never reach the logs.

Retention is yours

Set log retention per site or workspace between 7 and 90 days. A worker purges what is past the window.

Single-use tokens

A token verifies once. A replay is reported as a duplicate instead of being scored again.

Domain-bound

Tokens are issued for a site's domains, and a sitekey that does not match is refused.

Short-lived

Tokens expire after 120 seconds, so a stolen one is worth very little.

Self-hostable

The whole stack runs from containers on your own infrastructure, with your own secrets and database.

Questions

Found something?

Report security issues to [email protected]. The full privacy policy and terms are public.

Ready to stop the bots?

Start on the free tier. Create a site, copy the sitekey, ship.