LukaCodes

AntiSpam Shield by LukaCodes is a lightweight, no-bloat plugin that protects your WordPress comment section and contact forms from spam. Six independent tools, one settings page. <a href="https://lukacodes.com/comment-shield-docs/" rel="nofollow ugc">Read the full documentation</a>.
<ul>
<li>Disable Website Field — Removes the URL/website field from the comment form. Works with all themes, including those that hardcode the field (CSS fallback included).</li>
<li>Strip Links from Comments — Automatically removes all <code><a href></code> hyperlinks from comment content — both on display and before saving to the database. Spammers get zero benefit from posting links.</li>
<li>reCAPTCHA v3 — Adds Google’s invisible bot-score protection. No checkbox, no puzzle, no friction for real users. Bots are silently blocked server-side.</li>
<li>Cloudflare Turnstile — A privacy-friendly CAPTCHA alternative. Mutually exclusive with reCAPTCHA v3 — enabling one automatically disables the other.</li>
<li>Login Shield — Adds CAPTCHA to the WordPress login form (<code>wp-login.php</code>). Stops brute-force bots silently.</li>
<li>Registration Shield — Adds CAPTCHA to the WordPress registration form. Blocks bot account creation.</li>
<li>WPForms Integration — Apply the same CAPTCHA protection to WPForms Lite — using the same keys you already configured, no extra setup.</li>
<li>Easy Contact Form by LukaCodes Integration — Apply the same CAPTCHA protection to forms created with the companion Easy Contact Form plugin.</li>
</ul>
All features are independent — enable only what you need.
<h4>Login & Registration Shield</h4>
Version 1.1.2 adds CAPTCHA protection to <code>wp-login.php</code>:
<ul>
<li>Login Shield — Hooks into <code>wp_authenticate_user</code> for server-side verification after credentials are checked. Returns a <code>WP_Error</code> if CAPTCHA fails — WordPress displays it as a normal login error.</li>
<li>Registration Shield — Hooks into <code>registration_errors</code> to add CAPTCHA validation during registration. Works alongside all other WordPress registration validations.</li>
</ul>
Both are independently togglable in the settings panel. Admins already logged in are never affected.
<h4>WPForms Integration</h4>
Version 1.1.0 introduces CAPTCHA protection for WPForms Lite:
<ul>
<li>Hooks into <code>wpforms_display_submit_before</code> to inject the CAPTCHA widget before the submit button.</li>
<li>Hooks into <code>wpforms_process</code> for server-side token verification.</li>
<li>Works with both reCAPTCHA v3 (invisible) and Cloudflare Turnstile (visible widget).</li>
</ul>
Note: WPForms Pro includes its own native CAPTCHA integration — this feature is intended for WPForms Lite users only.
<h4>Easy Contact Form by LukaCodes Integration</h4>
Version 1.1.4 adds CAPTCHA protection for forms created with <a href="https://wordpress.org/plugins/lukacodes-easy-contact-form/" rel="ugc">Easy Contact Form by LukaCodes</a>:
<ul>
<li>Injects the CAPTCHA widget (Turnstile) or invisible token (reCAPTCHA v3) into every Easy Contact Form on the page.</li>
<li>Hooks into Easy Contact Form’s <code>lukacodes_comment_shield_check</code> filter for server-side token verification before the submission is processed or emails are sent.</li>
<li>Uses the same CAPTCHA keys you already configured — no extra setup.</li>
<li>When a token fails, the user sees a CAPTCHA-specific error message inline; the submission is never stored or emailed.</li>
</ul>
<h4>Why AntiSpam Shield?</h4>
Most anti-spam plugins are heavy, require accounts, or add ugly CAPTCHAs. AntiSpam Shield by LukaCodes is different:
<ul>
<li>~30 KB total — no external libraries, no jQuery dependency</li>
<li>Settings page with live key testing — verify your reCAPTCHA or Turnstile keys before enabling</li>
<li>Link stripping preview — paste any comment text and see exactly what gets removed</li>
<li>Graceful fallback: if Google’s or Cloudflare’s API is unreachable, comments are held for moderation (never lost)</li>
<li>Trusted users (administrators) bypass CAPTCHA checks automatically</li>
<li>Mutual exclusion: reCAPTCHA v3 and Cloudflare Turnstile cannot be active at the same time</li>
<li>WP Coding Standards compliant — fully escaped output, nonce-protected AJAX</li>
</ul>
<h4>reCAPTCHA v3 — How it works</h4>
When a visitor submits a form, JavaScript silently requests a score token from Google. The token is sent with the submission and verified server-side against your minimum score threshold (configurable from 0.1 to 1.0). No user interaction required.
<h4>Cloudflare Turnstile — How it works</h4>
A Turnstile widget is rendered inside the form. When the visitor completes the challenge, a token is submitted and verified server-side against the Cloudflare API.
<h3>Third-Party Services</h3>
This plugin optionally uses the following third-party services:
<h4>Google reCAPTCHA v3</h4>
A service provided by Google LLC.
<ul>
<li>What it does: Detects bots and spam on your comment form and contact forms without user interaction.</li>
<li>When data is sent: Only when reCAPTCHA v3 is enabled. A token is sent to <code>https://www.google.com/recaptcha/api/siteverify</code> on each form submission.</li>
<li>What data is sent: The visitor’s IP address and a reCAPTCHA token.</li>
<li>Google Privacy Policy: https://policies.google.com/privacy</li>
<li>Google Terms of Service: https://policies.google.com/terms</li>
</ul>
<h4>Cloudflare Turnstile</h4>
A service provided by Cloudflare, Inc.
<ul>
<li>What it does: Presents a privacy-friendly CAPTCHA widget on comment and contact forms.</li>
<li>When data is sent: Only when Cloudflare Turnstile is enabled. A token is sent to <code>https://challenges.cloudflare.com/turnstile/v0/siteverify</code> on each form submission.</li>
<li>What data is sent: The visitor’s IP address and a Turnstile token.</li>
<li>Cloudflare Privacy Policy: https://www.cloudflare.com/privacypolicy/</li>
<li>Cloudflare Terms of Service: https://www.cloudflare.com/website-terms/</li>
</ul>
Both services are entirely optional. If you do not enter API keys or enable either CAPTCHA, no data is sent to any third party.

AntiSpam Shield by LukaCodes

Block comment spam, brute-force logins and bot registrations with reCAPTCHA v3 or Cloudflare Turnstile. Lightweight, no bloat.

Cascadia Web Services

Tired of annoying CAPTCHAs that frustrate your visitors? Say goodbye to distorted text puzzles and hello to Cloudflare Turnstile – the next-generation CAPTCHA solution that protects your WordPress site without compromising user experience.
By MountDev: Cloudflare Turnstile brings enterprise-grade bot protection to your WordPress site with zero hassle. Powered by Cloudflare’s cutting-edge Turnstile technology, this plugin seamlessly integrates with your existing forms to stop spam, prevent automated attacks, and protect your site – all while keeping your legitimate users happy.
<h4>Why Choose Cloudflare Turnstile?</h4>
Better User Experience 
Unlike traditional CAPTCHAs that force users to decipher distorted text or identify traffic lights, Cloudflare Turnstile works invisibly in the background. Most legitimate users won’t even notice it’s there – they’ll just submit their forms and move on. No more frustrated visitors abandoning your registration or checkout process.
Privacy-First Approach 
Cloudflare Turnstile is built with privacy in mind. It doesn’t track users across sites or collect unnecessary personal data. Your visitors’ privacy is respected, and you stay compliant with modern privacy regulations.
Lightweight & Fast 
This plugin is optimized for performance. It won’t slow down your site or add bloat to your WordPress installation. The Turnstile widget loads efficiently, and you have full control over script loading behavior to optimize for your specific needs.
Enterprise Security, Free to Use 
Leverage the same powerful bot detection technology that protects millions of websites worldwide. Cloudflare’s advanced algorithms analyze visitor behavior to distinguish between humans and bots – and it’s completely free for most use cases.
<h4>Perfect for Every WordPress Site</h4>
Whether you’re running a simple blog, a membership site, an online store, or a complex multi-site network, this plugin has you covered. It integrates seamlessly with WordPress core forms and extends support to popular plugins like WooCommerce, Contact Form 7, Elementor Pro, and Fluent Forms.
E-commerce Protection 
Protect your WooCommerce store from fake registrations, fraudulent checkouts, and spam orders. Enable Turnstile on login, registration, password reset, checkout, and pay-for-order forms. You can even configure it to only appear for guest checkouts, keeping the experience smooth for your registered customers.
Form Builder Integration 
Using Contact Form 7, Elementor Pro Forms, or Fluent Forms? No problem. Enable Turnstile across all your forms with a single click, or selectively protect specific forms. You have complete control over where and how protection is applied.
Multisite Ready 
Managing a WordPress Multisite network? This plugin is fully compatible and can be configured independently for each site in your network.
<h4>Supported Forms</h4>
WordPress Core
<ul>
<li>Login Form</li>
<li>Registration Form</li>
<li>Password Reset Form</li>
<li>Comment Form</li>
</ul>
WooCommerce
<ul>
<li>Login Form</li>
<li>Registration Form</li>
<li>Password Reset Form</li>
<li>Checkout Form</li>
<li>Pay for Order Form</li>
</ul>
Third-Party Form Plugins
<ul>
<li>Contact Form 7 (all forms or specific forms via shortcode)</li>
<li>Elementor Pro Forms (all forms)</li>
<li>Fluent Forms (all forms with option to exclude specific form IDs)</li>
</ul>
Additional Features
<ul>
<li>Fully compatible with WordPress Multisite environments</li>
<li>Customizable widget positioning for different form types</li>
<li>Guest checkout only option for WooCommerce</li>
</ul>
<h4>Powerful Features, Simple Configuration</h4>
<ul>
<li>
Visual Customization – Choose between light, dark, and auto themes to perfectly match your site’s design aesthetic. The widget blends seamlessly into your forms.
</li>
<li>
Global Language Support – Set the preferred display language for the Turnstile widget to match your audience. Provide a localized experience for your international visitors.
</li>
<li>
Flexible Appearance Modes – Configure the widget to always be visible, or use managed/non-interactive modes where it only appears when suspicious activity is detected. Balance security with user experience.
</li>
<li>
Form Submission Control – Enable submit button locking to prevent users from submitting forms until Turnstile validation is complete. Ensure every submission is verified.
</li>
<li>
Branded Error Messages – Customize the error message displayed when validation fails. Maintain your brand voice even in error states and provide helpful guidance to users.
</li>
<li>
Precise Widget Positioning – Control exactly where the Turnstile widget appears on different form types. Place it before or after buttons, within specific form sections, or wherever makes the most sense for your layout.
</li>
<li>
Built-in Credential Testing – Verify your Cloudflare API keys are working correctly with one click. No more guessing if your configuration is correct – get instant confirmation.
</li>
<li>
Performance Optimization – Enable script deferral to optimize page load times. The plugin is designed to be lightweight and won’t bog down your site.
</li>
<li>
Granular Form Control – Enable protection globally across all forms of a certain type, or selectively protect individual forms. You decide the level of security for each form.
</li>
<li>
Guest Checkout Options – For WooCommerce stores, optionally show Turnstile only for guest checkouts while keeping the experience frictionless for logged-in customers.
</li>
<li>
Developer Friendly – Clean, well-documented code that follows WordPress coding standards. Hooks and filters available for advanced customization.
</li>
</ul>
<h3>Getting Started</h3>
You can have Cloudflare Turnstile protecting your WordPress forms in less than 5 minutes. Here’s how:
Step 1: Get Your Cloudflare Turnstile Keys 
Head over to your <a href="https://dash.cloudflare.com/" rel="nofollow ugc">Cloudflare dashboard</a> and create a free Turnstile site. You’ll receive a Site Key and Secret Key – these are like your plugin’s credentials to communicate with Cloudflare’s verification service. Don’t worry, it’s completely free for most websites.
Step 2: Install and Activate 
Install this plugin just like any other WordPress plugin. You can upload it manually or install it directly from the WordPress plugin directory. Activate it, and you’ll be automatically redirected to the settings page.
Step 3: Enter Your Keys 
Paste your Site Key and Secret Key into the API Configuration tab. This connects your WordPress site to Cloudflare’s Turnstile service.
Step 4: Choose Your Forms 
Navigate to the Integrations tab and select which forms you want to protect. You can enable Turnstile on WordPress login forms, WooCommerce checkout, Contact Form 7 submissions, and more. Enable as many or as few as you need.
Step 5: Customize (Optional) 
Visit the General Settings tab to customize the widget’s appearance, language, and behavior. Want a dark theme? Done. Need it in Spanish? No problem. Prefer the widget to only appear when necessary? You got it.
Step 6: Test It 
Click the TEST CREDENTIALS button to verify everything is configured correctly. You’ll get instant feedback confirming your setup is working.
Step 7: You’re Protected! 
That’s it! Your forms are now protected by enterprise-grade bot detection. Sit back and watch as spam submissions drop to zero while your legitimate users breeze through without frustration.
<h3>External Services</h3>
This plugin connects to Cloudflare Turnstile, a third-party captcha service, to provide spam protection and bot detection for your WordPress forms.
<h4>What the service is and what it is used for</h4>
Cloudflare Turnstile is a privacy-friendly captcha alternative that helps protect your website forms from spam submissions and automated bot attacks. It replaces traditional CAPTCHAs with a more user-friendly verification system.
<h4>What data is sent and when</h4>
<ul>
<li>When a user interacts with a protected form, the plugin sends the Turnstile response token to Cloudflare’s verification endpoint (https://challenges.cloudflare.com/turnstile/v0/siteverify) for validation</li>
<li>The plugin loads Cloudflare’s Turnstile JavaScript API (https://challenges.cloudflare.com/turnstile/v0/api.js) to render the captcha widget</li>
<li>Data sent includes: the response token, your site’s secret key, and the user’s IP address (as part of the verification process)</li>
<li>This occurs every time a user submits a form that has Turnstile protection enabled</li>
</ul>
<h4>Service provider information</h4>
<ul>
<li>Service: Cloudflare Turnstile</li>
<li>Provider: Cloudflare, Inc.</li>
<li>Terms of Service: https://www.cloudflare.com/terms/</li>
<li>Privacy Policy: https://www.cloudflare.com/privacypolicy/</li>
<li>Turnstile Documentation: https://developers.cloudflare.com/turnstile/</li>
</ul>
<h4>User consent and configuration</h4>
By enabling this plugin and configuring Turnstile on your forms, you acknowledge that user interactions with protected forms will be processed by Cloudflare’s service. Users are not required to create accounts or provide personal information beyond what’s necessary for form submission verification.

By MountDev: Cloudflare Turnstile

Protect your WordPress site from spam and bots with Cloudflare Turnstile - a modern, privacy-friendly CAPTCHA alternative that respects your users.

AntiSpam Shield by LukaCodes vs By MountDev: Cloudflare Turnstile