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Free Plugin by Forge12 Interactive GmbH v2.15.4

SilentShield

SilentShield – the invisible shield against spam. Spam is the weed of the internet. It clogs your forms, steals your time, and corrupts your data.

SilentShield

The facts

Rating
4.7★ from 21
Active installs
10k+
Price
Free
Last updated
27 Aug 2026
Added
Oct 2021
Requires WP
5.2
Tested up to
WP 7.0.4
Requires PHP
7.4
Downloads
271,557

Our analysis

AI-assisted

SilentShield is a captcha and anti-spam plugin designed for WordPress. It offers protection for various forms including login, registration, and comments, and is compatible with multiple form builders such as Contact Form 7, WPForms, and Elementor. The plugin aims to enhance site security without affecting performance, using invisible methods like honeypots and blacklists.

This plugin is suitable for anyone looking to reduce spam on their WordPress site, particularly those who use popular form plugins or run WooCommerce stores. Its privacy-focused approach ensures compliance with GDPR, as it does not use cookies or tracking.

Best for: This plugin suits WordPress users who need effective spam protection for forms and community interactions.

What it does well

  • Works with multiple popular form builders
  • No cookies or tracking, GDPR compliant
  • Offers invisible captcha and spam protection
  • Smart IP blocking and blacklists
  • Easy installation and activation

Where it falls short

  • Limited information on specific features or user experiences

Verdict

SilentShield provides a comprehensive solution for spam protection in WordPress, particularly for users of various form builders. Its privacy-first approach may appeal to those concerned about data compliance.

From the developer

Forge12 Interactive GmbH's own description of SilentShield, lightly tidied.

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, Formidable, Ninja Forms, Forminator, Kadence, 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 (classic widget and v4 “atomic” forms)
– Gravity Forms
– Fluent Forms
– Formidable Forms
– Ninja Forms
– Forminator
– JetFormBuilder
– Kadence Blocks (Advanced Form)
– Jetpack Forms (contact form block and shortcode)
– Avada (Fusion Builder) Forms

Newsletter:
– MC4WP – Mailchimp for WordPress (signup forms)

WooCommerce:
– Checkout – block (the default for new shops since WooCommerce 8.3)
– Checkout – classic (incl. PayPal Payments)
– Login
– Registration
– Lost password
– Account details

WordPress Core:
– Login form (wp-login.php)
– Registration form
– Lost password form
– Comment forms (including WooCommerce product reviews)

Communities & Forums:
– bbPress (new topics and replies)
– BuddyPress (member registration)

Donations:
– GiveWP (classic donation form; the visual-builder form is not yet covered)

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

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

Protection Layers

Read the full description on the official page →

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