The Better hCaptcha Alternative
No more image puzzles that drive users away. SilentShield protects invisibly, faster, and fully GDPR-compliant.

Invisible
No UI element, no puzzle, no interruption
GDPR Compliant
EU hosting, no data sharing, no tracking
No Cookies
No cookie banner needed
Ultra Fast
< 50ms vs 400ms with hCaptcha
Accessible
WCAG 2.1 AAA certified
Proof-of-Work
Cryptographic bot protection
Problems with hCaptcha
- Always visible image puzzles: High abandonment rate among users
- External data processing: Data is processed outside the EU
- Accessibility issues: Image recognition is inaccessible for many users
- Cookies required: Additional cookie banner necessary
- Slow loading: Approximately 400ms additional wait time
- Frustrating user experience: Frequent repetitions required
SilentShield solves this
- 100% invisible: No user is ever interrupted
- EU-only data processing: Full GDPR compliance
- WCAG 2.1 AAA: Fully accessible for all users
- No cookies: No cookie banner required
- < 50ms load time: 8x faster than hCaptcha
- Proof-of-Work instead of image puzzles: Modern and effective

GDPR Compliant
All data stays in the EU. No tracking, no cookies.

Ultra Fast
Under 50ms load time – 8x faster than hCaptcha.
SilentShield vs. hCaptcha Comparison
| Feature | SilentShield | hCaptcha |
|---|---|---|
| User interaction | None – invisible | Always image puzzles |
| GDPR compliant | Partially | |
| Cookies | None | Yes |
| Accessibility | WCAG 2.1 AAA | Limited |
| Load time | < 50ms | ~400ms |
| EU hosting | Yes, guaranteed | Optional |
| Conversion impact | Positive (+35%) | Negative (-15%) |
| Bot detection | Proof-of-Work + ML | Image recognition |
Switch in 60 Seconds
1
Remove hCaptcha
<!-- Remove this: -->
<script src="https://js.hcaptcha.com/
1/api.js"></script>
<div class="h-captcha"
data-sitekey="..."></div>2
Add SilentShield
<!-- Add this: -->
<script src="https://cdn.silentshield.dev/
v1/shield.js"
data-site-key="YOUR_KEY">
</script>3
Verify token
// Verify token server-side:
const result = await fetch(
'https://api.silentshield.dev/verify',
{
method: 'POST',
body: JSON.stringify({ token })
}
);Try the Live Demo
Interact with the form below — watch SilentShield analyze your behavior in real-time.
your-website.com/contact
Behavior Analysis
Waiting
Mouse Movement0%
Keyboard Input0%
Scroll Behavior0%
Interaction Timing0%
Human Score0%
Start interacting with the form to see the analysis.
Switch from hCaptcha now
Invisible protection without image puzzles. Start free – no credit card required.