SilentShield

Invisible • Secure • GDPR-Compliant

Protect forms from bots
without image puzzles.

Bot protection without image puzzles, without cookies, without cross-site tracking.

No credit card required
0
Cookies for the check
≈ 50 KB
Widget, compressed
25
Languages
your-website.com/contact
Protected by SilentShield
Behavior AnalysisWaiting
Mouse Movement0%
Keyboard Input0%
Scroll Behavior0%
Interaction Timing0%
Human Score0%
Ready for GDPR-compliant use
No Cookies
Widget tested against WCAG 2.1 AA
10,000+ WordPress installations

What is SilentShield?

SilentShield is an invisible, GDPR-compliant CAPTCHA alternative. Instead of image puzzles it verifies visitors invisibly in the background — no cookies and no tracking, on our servers in Germany. Around 50 KB compressed, for forms, logins and checkouts.

Live from production

86,304
bots blocked
11,634
this week
530
today

The difference

Visible CAPTCHA vs. invisible protection

Drag the slider: the usual CAPTCHA puzzle on the left, SilentShield on the right — same form, zero friction.

  • No puzzle for visitors

    People fill in the form and send it. The check runs in the background, with no traffic lights or tick boxes.

  • Behavior instead of picture puzzles

    SilentShield evaluates how a form is filled in and rates every visit as human, suspicious or bot.

  • No cookies, no tracking

    The check sets no cookies and does not follow visitors across websites.

With SilentShield
With CAPTCHA

See it in action

Invisible protection — zero friction

Watch how SilentShield protects your forms without your users ever noticing.

Try it yourself
01

User visits your page

SilentShield loads silently in the background

SilentShield vs. the Competition

Fair and transparent: How we differ from Turnstile & hCaptcha

Feature
SilentShield
hCaptchaPricing ↗
EU Data Hosting & Cookieless
100% EU Servers
US Provider
US Provider
Invisible & accessible (WCAG 2.1)
Completely invisible
Mostly invisible
Often visible challenges
Integration & API-First
60 sec. integration
Fast integration
Standard integration
Ready for GDPR-compliant use
No profiles
Data transfer to USA
Data transfer to USA
Transparent pricing
Free for all
Free available
Free available

Our Approach: We rely on EU hosting, cookieless technology, and full accessibility. No hidden data collection.

Test now – ready for GDPR-compliant use

Why SilentShield?

The privacy-friendly alternative to traditional CAPTCHAs – invisible, accessible, European.

Invisible

protects automatically, without disturbing users.

GDPR-compliant

built without cookies and without cross-site tracking.

Accessible

accessible for everyone, no barriers.

AI under control

decide per category what AI crawlers may do on your site.

Visible on request

invisible, a checkbox or a compact badge — the protection is identical.

0 %
Humanity score
Example score · 0 – 100

AI traffic

Decide what AI does with your site

Every AI crawler that reaches your site shows up by name. You decide per category what it may do — not per bot, and not once and for all.

Allow

Your visibility in AI answers stays. Block AI search and you disappear from them.

Watch

Monitor mode is the default. Nothing is blocked until you switch enforcement on yourself.

Block

Training crawlers are turned away at your server, before they read a line.

How the rules work
Agent report with 647 blocked AI bots, blocks over time, and the most-blocked list: meta-externalagent, amazon-amazonbot, openai-gptbot
Blocked AI bots in 24 hours — by name, type and count

Built for trust and compliance

  • Hosting in Germany
  • GDPR Compliant
  • WCAG 2.1
  • TLS Encrypted
0 ms
Friction for real users
< 10 KB
Widget bundle
25
Languages
100%
EU-hosted
2.1
WCAG-compliant

Integration

One script tag. One check on your server.

No backend rebuild. Add the snippet, drop in your API key, done.

WordPress plugin for forms, WooCommerce and login without code.

Server-side verification via REST — one request confirms the token.

index.html
<!-- One tag in the <head> — that's it -->
<script src="https://api.silentshield.io/client.js?k=YOUR_API_KEY"
        crossorigin="anonymous" defer></script>

// Verify server-side (Node)
const { human, verdict } = await verify(req.body.behavior_nonce)
// → { human: true, verdict: "human", confidence: 0.98 }

Fits into your stack

Choose Your Plan

Transparent, fair, and flexible – for every business size

Basic
€9/month

For businesses with one website

Most popular
Pro
€29/month

For agencies and multiple websites

Business
€99/month

For agencies and shops with many websites

Free — For non-profit organizations
Start for free

No credit card · no setup fee · cancel anytime

Still have questions?

Didn't find an answer here? Our team is happy to help – quickly and with no obligation.

Get in touch

Frequently asked questions

What is SilentShield?

SilentShield is an invisible, GDPR-compliant CAPTCHA alternative that blocks bots on forms and logins without cookies, puzzles or data transfer to Google.

Is SilentShield really invisible?

In the default mode, yes. Real users are verified in the background; only when the result is unclear is there a short arithmetic task instead of an image puzzle.

Is SilentShield GDPR-compliant?

Yes. It sets no tracking cookies, stores the IP address only as a hash, keeps data on our servers in Germany and sends nothing to Google.

How do I add SilentShield to my site?

Two parts: the script on your pages and a check on your server before the form is processed. On WordPress the plugin handles both.

How much does SilentShield cost?

There is a free plan for up to 500 requests per month; paid plans start at €9/month and scale with your volume, with no setup fees.

Ready to use immediately

Get started for free.

Test for free, no credit card, no risk.