The Verification Layer for the AI Age
The CAPTCHA replacement built for the deepfake era. Physical presence. Zero data stored.
CAPTCHAs are broken. AI solves them in milliseconds. Dexasign verifies something no bot can fake — that a real, living person is physically present.
Bots have caught up. AI now solves reCAPTCHA and hCaptcha with over 90% accuracy. Deepfakes can impersonate faces on demand. The old model of behavioral tracking and image puzzles was never designed to answer the question that actually matters in 2026:
Is a real, living human being physically present right now?
Dexasign answers that question — without storing a single byte of your users' data.
Dexasign does not analyze your browsing history, set cookies, or build a behavioral profile. It verifies the one thing no bot can replicate — that you are physically present, right now, in seconds.
No puzzles. No tracking. Just you.
mode = VerifyTouch
Bubbles appear on screen at randomized positions. You pop them in sequence with your hand. The challenge is different every time — and completing it requires a real hand, moving in real space, in real time.
mode = VerifyGesture
A sequence of hand signs appears. Left hand peace sign. Right hand thumbs up. Hang loose. You follow along in real time. The sequence is randomized every session — and performing it requires a real person, physically present, responding as it unfolds.
liveness_detection = trueface_signal_analysis = true
Liveness detection confirms a live person is in front of the camera. Face signal analysis confirms that person is not a deepfake or synthetic image. Both run silently while you complete the challenge. You never see them. You never need to.
Verification should not be about search history, mouse movement, or behavior profiles. It is about you — a real person, physically present, taking a real action. When it passes, the session closes. Everything is discarded. You move on.
Dexasign runs sophisticated analysis against your users’ faces and hands. We understand that requires trust. Here is exactly what happens to that data.
Your users’ faces are used to verify presence, not to build a database. That is a promise, not a setting.
| Dexasign | reCAPTCHA v3 |
hCaptcha | Cloudflare Turnstile |
|
|---|---|---|---|---|
| Tracks browsing behavior | ||||
| Stores biometric data | ||||
| AI-solvable today | ||||
| Requires cookies | ||||
| Liveness detection | ||||
| Deepfake resistant | ||||
| Verifies physical presence | ||||
| Works without behavioral history |
One script tag. One callback. Works with any stack.
<!-- Add the widget container -->
<div id="dexasign-verify"></div>
<!-- Load the SDK -->
<script src="https://dexasign.com/static/sdk/dexasign-verify.min.js"></script>
<!-- Initialize -->
<script>
DexasignVerify.render('#dexasign-verify', {
applicationId: 'YOUR_APP_ID',
onComplete: (result) => {
// Send result.token to your backend
verifyToken(result.token);
}
});
</script>Unlike reCAPTCHA, we don't track your browsing history or build profiles. We verify that a real person is present — nothing is stored, no data leaves the session.
Current AI can't perform random physical gestures on demand. Our approach stays ahead of deepfakes and automation.
Works on any device with a camera. No app downloads. No special hardware. Just a browser.
Most verifications complete in seconds. Faster than typing or clicking a CAPTCHA, more reliable than solving puzzles.
Dexasign is in pre-alpha. We are taking the time to build this the right way — because getting human verification right matters. Every site that deploys Dexasign is making a statement: that their users deserve privacy, not surveillance. If that mission resonates with you, we want to hear from you.
Have questions? Contact us — or read the Developer Docs.