SilentShield – Captcha & Anti-Spam for WordPress (CF7, WPForms, Elementor, WooCommerce)

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.