Zhylon Captcha protects your forms and APIs using Proof of Work — no cookies, no fingerprinting, no privacy compromise. Just invisible, effortless bot protection.
Instead of surveilling users, we give the browser a small computational puzzle to solve. Bots fail. Humans don't notice.
{{ s.d }}
The user's browser requests a challenge from Zhylon Captcha servers. It solves the hash puzzle client-side. The resulting token is submitted with your form — your backend verifies it with a single API call. No personal data is ever collected.
Popular captcha solutions come with hidden costs — your users' privacy and GDPR compliance risk.
| reCAPTCHA | hCaptcha | Zhylon Captcha | |
|---|---|---|---|
| {{ row.label }} | {{ row.recaptcha.note }} | {{ row.hcaptcha.note }} | {{ row.us.note }} |
{{ f.d }}
Drop in the script tag, add the widget, verify server-side. Works with any stack.
<!-- Load the Zhylon Captcha script --> <script src="https://captcha.zhylon.net/captcha/widget.js" async></script> <!-- Place inside your form --> <div class="zhylon-captcha" data-sitekey="585454950B2936DD"></div>
use Zhylon\Captcha\Captcha; public function submit(Request $request) { $result = Captcha::verify( $request->input('zhylon-captcha-response') ); if (! $result->success) { return back()->withErrors([ 'captcha' => 'Verification failed.' ]); } // handle your form ... }
Download the widget and serve it from your own domain. The verification calls still go to our API (that's how the proof-of-work gets checked), but your page no longer loads a script from a third-party domain — useful if your CSP or privacy policy doesn't allow that.
<!-- Self-hosted, e.g. under /js/pow-captcha.min.js --> <script src="/js/pow-captcha.min.js" defer></script> <div class="pow-captcha" data-sitekey="585454950B2936DD"></div>
X-PowCaptcha-Version and X-PowCaptcha-SHA256
headers (curl -I https://captcha.zhylon.net/captcha/download) so you can verify the file
and detect updates.
Beta pricing is temporary. All beta supporters will receive exclusive rates when stable pricing is announced.
Join the beta today. Free to start, €5 to support.