The CAPTCHA that
Privacy-first bot defense. No tracking, no cookies, no fingerprinting — your visitors' IPs are stripped at our edge and never even reach our servers.
01
Privacy-first
Your visitor's IP is stripped at our edge and never reaches an upstream. No cookies, no fingerprint, no cross-site tracking — nothing to log, nothing to leak.
02
Drop-in embed
One <script> tag and a <div>. The widget injects a
hidden nc-response field, so a plain form submit carries the token. No custom JS.
03
Real challenges
Invisible proof-of-work by default, escalating to lightweight interactive challenges only when a request actually looks automated. Humans breeze through.