pontocinza

<p>NoCaptcha Spam Filter for Contact Form 7 provides a deterministic, cache-safe, multi-layered defense against automated form submissions for Contact Form 7 without the need for CAPTCHAs or external libraries.</p>
<p>The plugin uses a combination of:</p>
<ul>
<li>Unique Honeypot: A site-specific hidden field that traps bots.</li>
<li>Cryptographic Signing: Ensures form tokens are genuine and haven’t been tampered with.</li>
<li>Anti-Replay Nonces: Each submission is unique; tokens cannot be reused.</li>
<li>Time-Check Validation: Blocks bots that fill out forms faster than humanly possible.</li>
<li>Cache-Safe Architecture: Automatically detects stale tokens on cached pages and refreshes them via a lightweight REST API fallback.</li>
</ul>
<h3>Scope of Protection</h3>
<p>This plugin is designed to block the vast majority of automated spam submissions (99% of common web crawlers) in Contact Form 7, with zero impact on user experience or performance. However, please note:</p>
<ul>
<li>Not a WAF: It is not a substitute for a Web Application Firewall or server-level security layers for mitigating sophisticated DDoS attacks.</li>
<li>Targeted Attacks: Highly sophisticated bots using headless browsers or manual human bypasses (spam farms) fall outside the scope of lightweight algorithmic protection.</li>
</ul>
<p>For maximum security, we recommend using this plugin as part of a multi-layered defense strategy.</p>
<h3>Configuration (optional, only for advanced users)</h3>
<p>You can override defaults in ‘wp-config.php’:<br />
    <code>php<br />
define('CF7NCSP_DOMAIN_SALT', 'your-random-string');<br />
define('CF7NCSP_TTL', 2400);      // Token lifetime (seconds)<br />
define('CF7NCSP_MIN_TIME', 20);   // Minimum time before submission</code><br />
Recommendations<br />
* Use a long, random string for ‘CF7NCSP_DOMAIN_SALT’<br />
* Keep ‘CF7NCSP_MIN_TIME’ between 10–30 seconds</p>
<h3>Privacy Policy</h3>
<p>This plugin is designed with privacy-first principles:<br />
* No PII Collection: It does not collect, store, or transmit any Personally Identifiable Information (PII).<br />
* No Persistent IP Storage: IP addresses are used transiently for rate limiting and are not stored in plain form or retained beyond a short-lived, temporary cache.<br />
* Local Processing: All validation happens on your server. No data is sent to third-party services.<br />
* Cookieless: The plugin does not set any browser cookies.</p>
<h3>Disclaimer</h3>
<p>This plugin is provided “as is”, without warranty of any kind, express or implied. Use at your own risk. While best efforts have been made to ensure reliability and security, the author is not liable for any damages or losses resulting from its use.</p>
<p>** DEVELOPER’S NOTE: **</p>
<p>This plugin is designed to be a lightweight, “set and forget” solution. It focuses on stability and minimal maintenance, with updates provided as needed for bug fixes and compatibility with WordPress and Contact Form 7. Because it is built to be self-sufficient, please be aware that the developer will not implement non-critical feature requests.</p>


NoCaptcha Spam Filter for Contact Form 7

Honeypot, signed security tokens, and anti-replay protection for Contact Form 7. Built for performance and full-page cache compatibility.

R.Sabbir

<p>Stop contact form spam instantly with <strong>BotShield CAPTCHA for Contact Form 7</strong>. This all-in-one spam protection plugin integrates <strong>Google reCAPTCHA (v2 Checkbox & v3 Invisible)</strong>, <strong>Cloudflare Turnstile</strong> (Privacy-Focused), and lightweight <strong>Built-in Arithmetic/Image Challenges</strong> to block bots while letting real users pass.</p>
<p>Whether you need strict security or a friction-free user experience, BotShield gives you complete control over your specific form protection needs. No more spam submissions, fake leads, or automated bot attacks.</p>
<p><strong>Protect Your WooCommerce Store with Enterprise-Grade Security.</strong> Upgrade to <strong><a href="https://woocommerce.com/products/securegate-captcha/" rel="nofollow ugc">SecureGate CAPTCHA</a></strong> for ultimate full-site protection. Instantly block spam, fake registrations, and checkout fraud using intelligent Cloudflare Turnstile, Google reCAPTCHA, hCaptcha, and powerful Geo-Blocking rules—keeping your store fast, secure, and entirely bot-free.</p>
<h4>Key Features & Benefits</h4>
<ul>
<li><strong>Multi-Provider Support</strong>: Choose between Google reCAPTCHA, Cloudflare Turnstile, or Self-hosted challenges.</li>
<li><strong>Google reCAPTCHA Integration</strong>: Supports both <strong>v2 (“I’m not a robot”)</strong> and <strong>v3 (Invisible)</strong> keys.</li>
<li><strong>Cloudflare Turnstile</strong>: The modern, privacy-friendly alternative that stops bots without annoying puzzles.</li>
<li><strong>Lightweight Built-in Protection</strong>: Use simple Math or Image CAPTCHAs without needing any external API keys.</li>
<li><strong>Seamless Contact Form 7 Integration</strong>: Adds a dedicated “BotShield” tag generator button directly to the CF7 editor.</li>
<li><strong>Mobile Optimized</strong>: Fully responsive challenges that work perfectly on smartphones and tablets.</li>
<li><strong>GDPR Compliant Options</strong>: Turnstile and Built-in modes offer excellent privacy compliance.</li>
<li><strong>Accessibility Ready</strong>: WCAG 2.1 compliant designs for screen reader support.</li>
</ul>
<h4>Flexible Protection Options</h4>
<p><strong>1. Google reCAPTCHA (The Industry Standard)</strong><br />
*   <strong>v2 Checkbox</strong>: The classic “I’m not a robot” checkbox users trust.<br />
*   <strong>v3 Invisible</strong>: valid users are verified in the background with zero interaction.</p>
<p><strong>2. Cloudflare Turnstile (Privacy-First)</strong><br />
*   Verify visitors without solving complex puzzles. Smart, fast, and respectful of user privacy.</p>
<p><strong>3. Built-in Challenges (No Keys Required)</strong><br />
*   <strong>Arithmetic</strong>: Simple math questions (e.g., 7 + 2 = ?) effective against basic bots.<br />
*   <strong>Alphanumeric</strong>: Distorted text images for traditional verification.<br />
*   <em>Zero external dependency, 100% self-hosted.</em></p>
<h4>Perfect For</h4>
<ul>
<li>Contact forms</li>
<li>Registration forms</li>
<li>Quote request forms</li>
<li>Newsletter signups</li>
<li>Any Contact Form 7 form needing spam protection</li>
</ul>
<h4>Requirements</h4>
<ul>
<li>WordPress 5.0 or higher</li>
<li>Contact Form 7 plugin (must be active)</li>
<li>PHP 7.4 or higher</li>
<li>GD PHP extension for image CAPTCHAs</li>
</ul>
<h3>Privacy Policy</h3>
<p>BotShield CAPTCHA does not:<br />
* Collect any personal data<br />
* Store user information<br />
* Transmit data to external servers<br />
* Use cookies or tracking<br />
* Share information with third parties</p>
<p>All CAPTCHA processing happens locally on your WordPress server. The plugin is fully GDPR compliant.</p>
<h3>Support & Documentation</h3>
<ul>
<li>Support Forum: https://wordpress.org/support/plugin/botshield-captcha/</li>
<li>Developer Website: https://www.rsabbir.com/</li>
</ul>
<h3>Contributing</h3>
<p>Contributions are welcome! Contact the developer or visit the GitHub repository to contribute to this plugin’s development.</p>
<h3>Credits</h3>
<ul>
<li>Developed by R. Sabbir (https://www.rsabbir.com/)</li>
<li>Tested with Contact Form 7 6.1.4 and later</li>
</ul>
<h3>Technical Specifications</h3>
<h4>Server Requirements</h4>
<ul>
<li>WordPress 5.0 or higher</li>
<li>PHP 7.4 or higher</li>
<li>Contact Form 7 plugin (active)</li>
<li>GD PHP extension (for image CAPTCHAs)</li>
</ul>
<h4>Browser Support</h4>
<ul>
<li>Chrome (latest versions)</li>
<li>Firefox (latest versions)</li>
<li>Safari (latest versions)</li>
<li>Microsoft Edge (latest versions)</li>
<li>Mobile browsers (iOS Safari, Chrome Mobile)</li>
</ul>
<h4>Security Features</h4>
<ul>
<li>Token-based validation system</li>
<li>HMAC-SHA256 signature verification</li>
<li>Automatic token expiration (5 minutes)</li>
<li>XSS protection</li>
<li>CSRF token protection</li>
<li>No session storage required</li>
</ul>
<h4>Performance</h4>
<ul>
<li>Code: ~50KB total size</li>
<li>Assets: Minified and optimized</li>
<li>Loading: Conditional asset loading on relevant pages</li>
<li>HTTP Requests: Zero external requests</li>
<li>Caching: Compatible with all major WordPress cache plugins</li>
</ul>


BotShield CAPTCHA for Contact Form 7


shows warning here after installation. 



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quality code not added

BotShield CAPTCHA for Contact Form 7 – Advanced Spam Protection with Turnstile, reCAPTCHA, Arithmetic, and Alphanumeric.

NoCaptcha Spam Filter for Contact Form 7 vs BotShield CAPTCHA for Contact Form 7