Vision CAPTCHA
Interactive image-based challenges that are engaging for users but difficult for bots.
Select images based on instructions with shuffled image positions for enhanced security.
Try Vision Demo
Text CAPTCHA
Accessible text-based challenges that work with screen readers.
Distorted characters that are readable by humans but challenging for automated systems.
Try Text Demo
IP Blocking
Smart IP-based rate limiting and blocking for suspicious activities.
Temporary blocks for failed attempts with automatic cooldown periods.
Privacy Free
Zero data collection, no cookies, no tracking scripts.
GDPR compliant by design - we don't store any personal information.
Shuffling Images
Dynamic image positioning and rotation to prevent pattern recognition.
Each challenge is unique with randomized layouts and selections.
Easy Integration
Simple 3-step integration process. Just include our CSS, add the widget,
and include our JavaScript. Works with any website or framework.
View Integration Guide
Frequently Asked Questions
What data does sCaptcha collect?
None! sCaptcha is privacy-first. We don't collect, store, or track any personal data.
No cookies, no fingerprinting, no user profiling. We only process the CAPTCHA response to verify it's legitimate,
and your IP address is used temporarily for rate limiting (not stored).
How does the verification work?
When a user completes the CAPTCHA, we generate a signed token that expires in 1 minute.
Your server verifies this token using your secret key. The token contains no personal information -
just verification status and timestamp.
What's the difference between Vision and Text CAPTCHA?
Vision CAPTCHA: Users select images based on instructions (e.g., "Select all cats").
More engaging but requires good vision.
Text CAPTCHA: Users type distorted characters they see. More accessible and works with screen readers,
but can be harder to read.
Is sCaptcha GDPR compliant?
Yes! Since we don't collect any personal data, cookies, or tracking information,
sCaptcha is fully GDPR compliant. No consent banners needed for the CAPTCHA itself.
Can I customize the appearance?
Yes! sCaptcha supports light/dark themes and automatically adapts to your page.
You can set data-theme="light", data-theme="dark", or data-theme="auto"
to match user's system preference.
What about accessibility?
sCaptcha is designed with accessibility in mind. The Text CAPTCHA mode works with screen readers,
and both modes support keyboard navigation. We follow WCAG guidelines for contrast and usability.
How do I get started?
Register on our dashboard, add your website domain, and you'll receive your sitekey (public) and secret (private).
The sitekey goes in your HTML, the secret stays on your server for verification.
Try our demo to see it in action!
Is there rate limiting?
Yes, we implement smart rate limiting to prevent abuse while allowing legitimate users.
Failed attempts trigger temporary cooldowns, and there are daily limits per domain to prevent API abuse.
