Bot Protection
Invisible bot detection that runs in the browser, verifies in under 2ms, and never asks your users to prove they're human.
Invisible to users
Detection runs silently in the browser. Your users never see a challenge or a puzzle.
~2ms latency
Server-side verification adds negligible overhead to your existing request flow.
No CAPTCHA required
Replace CAPTCHA entirely. Bot detection that doesn't punish your real users.
EU hosted
Infrastructure in Switzerland. No data leaves Europe. GDPR-native by architecture.
No personal data
Signals are ephemeral and anonymous. We don't know who your users are.
One snippet
Drop in a JavaScript tag. Works on any stack. No SDK to maintain.
Detection without inspection
yaan analyzes a wide range of browser signals during a user's session — everything from timing patterns to environment consistency — and produces a signed token. Your server verifies that token against our API. One call. One answer.
We deliberately keep the internals vague. Bots that can't reverse-engineer the detection surface can't spoof it.
Built for regulated environments
No personal data. No cookies. No third-party transfers. Compliant by default.
Stop bots without stopping users.
Free during public preview. No credit card. Set up in minutes.