SilentShield

SilentShield is an invisible, GDPR-compliant CAPTCHA alternative for WordPress. Its plugin protects Contact Form 7, WPForms, Elementor, WooCommerce, Avada, Fluent Forms, Gravity Forms and Ninja Forms without cookies, tracking or personal data. Hosting is EU-only by default, and forms stay accessible under WCAG 2.1 AA — no puzzles for your visitors.

Invisible CAPTCHA for WordPress

Protect your WordPress forms from spam – invisible, GDPR-compliant, and compatible with all popular form plugins.

WordPress CAPTCHA Integration

Supported Plugins

Contact Form 7
Full integration with CF7 tags
WPForms
Native integration via addon
Elementor Forms
Widget for Elementor Pro
WooCommerce
Checkout, login, registration
Avada Forms
Direct integration
Fluent Forms
Plugin-based integration
Gravity Forms
Add-on available
Ninja Forms
Extension available
Easy installation in 3 steps

Installation in 3 Steps

1

Install plugin

In WordPress admin under Plugins → Add New, search for "SilentShield" and activate.

2

Enter API key

Under Settings → SilentShield, enter your API key.

3

Protect forms

Choose which forms to protect – done!

Why Not reCAPTCHA for WordPress?

Feature
SilentShield
reCAPTCHA (WordPress)
Invisible
GDPR compliant
No cookies
CF7 support
WooCommerce support
Elementor supportLimited
Performance impactMinimalHigh (~300ms)
AccessibilityWCAG 2.1 AALimited

How SilentShield works on WordPress

SilentShield replaces reCAPTCHA with an invisible check that runs in the background while a visitor fills out a form. The WordPress plugin adds the client script to your pages and verifies each submission through a single API key. There are no image puzzles, no cookies and no tracking scripts, so your pages stay fast and privacy-friendly.

Works with your existing form plugins

After activating the plugin you choose which forms to protect. SilentShield integrates with Contact Form 7, WPForms, Elementor Forms, WooCommerce checkout and login, Avada Forms, Fluent Forms, Gravity Forms and Ninja Forms. You keep your current forms and design — SilentShield only adds the invisible verification step, so visitors never see a challenge.

Setup in a few minutes

Install the SilentShield plugin from the WordPress plugin directory and activate it. Open Settings → SilentShield and paste your API key. Select the forms you want to protect and save. From that moment every protected form is checked automatically, and legitimate visitors submit without any extra clicks.

Privacy and accessibility by default

SilentShield stores no cookies, sets no tracking and collects no personal data, which keeps your forms aligned with the GDPR. Data is processed on EU-only infrastructure by default. Because there are no visual or audio puzzles, the protection meets WCAG 2.1 AA and remains usable for keyboard and screen-reader users.

Protect WordPress Now

Install the plugin, enter your key, done. Start for free.

Try for freeView pricing

Frequently asked questions

How do I add a CAPTCHA to WordPress?

Install the SilentShield WordPress plugin, then paste your single API key. It integrates automatically with Contact Form 7, WPForms, Elementor, WooCommerce, Avada, Fluent, Gravity and Ninja Forms, protecting them invisibly. There are no image puzzles or checkboxes — real visitors are verified in the background through behavioral signals.

Which WordPress form plugins does SilentShield support?

The SilentShield WordPress plugin works with Contact Form 7, WPForms, Elementor, WooCommerce, Avada, Fluent Forms, Gravity Forms and Ninja Forms. You install the plugin once, add your API key, and these forms are protected invisibly — no separate configuration per form and no visible CAPTCHA widget.

Is the SilentShield WordPress plugin GDPR-compliant?

Yes. Like every SilentShield plan, the WordPress plugin hosts data in the EU by default, sets no cookies, does no tracking, and stores only pseudonymised data. Because it sets no tracking cookies, it typically needs no consent banner, unlike reCAPTCHA which sends data to Google.

Does the WordPress CAPTCHA slow down my site?

No. The SilentShield plugin loads a single lightweight client script and has no image assets to download. Verification happens through behavioral signals and a proof-of-work nonce, with no third-party tracking calls, so it adds minimal overhead to page load and form submission.

Do WordPress users have to solve a puzzle?

No. SilentShield is invisible, so WordPress visitors never see an image puzzle or checkbox. The plugin verifies real users in the background using behavioral signals and a proof-of-work nonce, meeting WCAG 2.1 AA, while blocking spam bots on your forms automatically.

How much does the WordPress CAPTCHA cost?

SilentShield has a free tier and paid tiers, and the WordPress plugin works on every plan with a single API key. The free tier includes invisible protection, EU hosting, no cookies and pseudonymised data only; paid tiers are for higher request volumes.