Plugin: captcha-for-contact-form-7 (Used by 2,351 domains)

SilentShield is a unified captcha and anti-spam plugin for WordPress.
It works with the most popular form builders and protects login, registration, and comment forms – without slowing your site.

Why choose SilentShield?
– Invisible defense – Captcha, honeypot, and blacklists working silently.
– Instant results – Install, activate, and stop spam.
– Universal support – Works with Contact Form 7, WPForms, Elementor, WooCommerce, and more.
– Privacy-first – No cookies, no tracking, fully GDPR / DSGVO compliant.

SilentShield doesn’t just protect forms.
It protects your time, your customers, your business.

Core Features

• Invisible Captcha (Arithmetic, Honeypot, Image)
• Smart IP Blocking & Blacklists
• Spam filters for links, code & keywords
• Whitelisting for admins & customers
• GDPR-ready, no cookies, no tracking

Supported Form Plugins & Integrations

SilentShield protects forms from all major WordPress form builders and core features:

Form Builders:
– Contact Form 7 (CF7)
– WPForms / WPForms Lite
– Elementor Pro Forms
– Gravity Forms
– Fluent Forms
– JetFormBuilder
– Avada (Fusion Builder) Forms

WooCommerce:
– Checkout (classic & PayPal Payments)
– Login
– Registration

WordPress Core:
– Login form (wp-login.php)
– Registration form
– Comment forms

Other:
– Ultimate Member (Login & Registration)
– WP Job Manager (Job Applications)

Each integration can be enabled or disabled individually under Settings > Extended.

Protection Layers

SilentShield uses 10+ protection mechanisms working together:

1. Captcha – Arithmetic math, honeypot, or image-based captcha
2. JavaScript Protection – Detects submissions from bots without JS support
3. Browser Detection – Validates User-Agent strings
4. Timer Protection – Blocks submissions faster than a human can type
5. Multiple Submission Protection – Prevents rapid duplicate submissions
6. IP Rate Limiting – Limits requests per IP and time window
7. IP Blacklist – Block known bad IPs
8. Content Rules – Limit URLs, block BBCode, keyword blacklist
9. Whitelist – Skip validation for admins, logged-in users, or specific emails/IPs
10. SilentShield API (Beta) – Cloud-based spam detection

The Promise

SilentShield is not “just another plugin.”
It’s an invisible wall against the background noise of the internet.

Activate once – and your forms are human again.

Privacy & Telemetry

• No cookies, no user tracking.
• Encrypted IP storage (max. 2 months, only for spam defense).
• Telemetry is optional and anonymized.
• You can disable telemetry anytime in plugin settings.

Collected fields:
– plugin_slug, plugin_version
– snapshot_date
– settings_json (anonymized config – only boolean/integer flags, no free-text)
– features_json (enabled features)
– created_at, first_seen, last_seen
– counters_json (spam events)
– wp_version, php_version, locale

GDPR / DSGVO Compliance
– Basis: Art. 6 Abs. 1 lit. f DSGVO (legitimate interest – plugin optimization).
– No personal data, no cookies, no user tracking.