SilentShield

SilentShield is an invisible, GDPR-compliant CAPTCHA alternative used across e-commerce, SaaS, agencies, forums, non-profits, and enterprise. It blocks bots through behavioral analysis and a proof-of-work nonce — with no cookies, tracking, or personal data. Every plan hosts data in the EU by default, meets WCAG 2.1 AA, and installs with a single API key.

Use Cases

SilentShield for every industry

See how businesses across different industries use invisible bot protection to secure their websites and improve user experience.

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InvisibleEU hostingGDPR-compliant
Protected surfacesActive
  • Registration & Login
  • Checkout & Payment
  • Contact & Forms
  • Comments & UGC
  • Public APIs

Cross-platform

One shield for every stack.

E-Commerce & Online Shops

Protect checkout forms, product reviews, and account registrations from bots. Reduce fake orders and spam reviews without adding friction for real customers.

  • Protect checkout and payment forms
  • Prevent fake product reviews and ratings
  • Stop automated account creation
  • Increase conversion by removing CAPTCHA barriers

SaaS & Web Applications

Secure login pages, sign-up flows, and API endpoints. SilentShield integrates in 60 seconds and scales with your application.

  • Protect sign-up and login forms
  • Secure API endpoints with rate limiting
  • Team management for dev teams
  • Behavior analytics for suspicious activity

Agencies & Web Studios

Manage bot protection for multiple client websites from one dashboard. White-label widget branding and team collaboration built in.

  • Manage multiple domains per account
  • Custom widget branding per client
  • Team access with role-based permissions
  • Centralized analytics across all projects

Forums & Communities

Keep spam bots out of discussion forums, comment sections, and community platforms. Protect user-generated content without annoying real users.

  • Block spam registrations automatically
  • Protect comment and post forms
  • No visual challenges that disrupt discussions
  • AI-powered spam detection

Non-Profits & Education

Free plan available for non-profit organizations and educational institutions. Full GDPR compliance ensures data privacy for sensitive use cases.

  • Free plan for qualifying organizations
  • 100% GDPR-compliant — no student data collected
  • Accessible for all users (WCAG 2.1)
  • Easy integration without technical expertise

Enterprise & Government

Enterprise-grade security with EU-only data hosting, SSO integration, and dedicated support. Custom data retention policies and audit logging.

  • EU-only data hosting (servers in Germany)
  • SSO and audit logging
  • Custom data retention policies
  • Dedicated support and onboarding

Ready to protect your website?

Start for free — no credit card required. Works with any website or framework.

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Frequently asked questions

What can I use SilentShield for?

SilentShield protects any web form or endpoint from bots — contact forms, sign-ups, logins, comment sections, checkout, newsletter opt-ins and API endpoints. It verifies real visitors invisibly through behavioral signals and a proof-of-work nonce, so legitimate users pass without solving image puzzles while automated abuse is blocked.

Can SilentShield stop spam on contact forms?

Yes. SilentShield blocks automated form spam on contact and comment forms without showing a visible challenge. It scores behavioral signals in the browser and verifies a proof-of-work nonce on your backend, so real users submit normally while spam bots are rejected — no image puzzles or checkboxes.

Does SilentShield protect login and registration pages?

Yes. SilentShield defends logins and sign-up forms against credential stuffing and fake-account bots. The client script gathers behavioral signals invisibly and issues a nonce your backend verifies at the /v1/verify endpoint, blocking automated attempts while genuine users sign in without friction or puzzles.

Can SilentShield handle legitimate AI agents?

Yes. The Agent Gateway identifies legitimate AI agents visiting your site and lets you decide what they may do, separate from blocking abusive bots. This means you can allow well-behaved automation while still stopping spam and scraping on the same forms and endpoints.

Is SilentShield suitable for e-commerce checkout?

Yes. SilentShield protects checkout, coupon and account flows on stores from carding and abuse bots. It runs invisibly through a client script and backend nonce verification, adds no cookies or tracking, and never shows shoppers a puzzle — keeping conversion friction at zero.

Which platforms does SilentShield support?

SilentShield works on any stack. There is a WordPress plugin (Contact Form 7, WPForms, Elementor, WooCommerce, Avada, Fluent, Gravity, Ninja), a theme script embed for Shopify and WooCommerce, and SDKs for Node, PHP, Go and React Native — all driven by a single API key.