wpsqr

<p><strong>Puzzle Gate</strong> is a next-generation WordPress security plugin that replaces annoying traditional CAPTCHAs with an <strong>intelligent, interactive puzzle system</strong>. Unlike conventional image/text CAPTCHAs that rely on external services and frustrate users, Puzzle Gate offers a fast, self-hosted solution that’s both highly secure and surprisingly user-friendly.</p>
<h3><strong>Why Website Owners Choose Puzzle Gate:</strong></h3>
<p><strong>Blocks Automated Login Attacks</strong> – Advanced puzzle logic stops bots before they can even attempt authentication<br />
   <strong>Zero External Dependencies</strong> – No Google services, no tracking, complete privacy compliance<br />
   <strong>Lightning Fast</strong> – Adds just 200ms to your login page load time<br />
   <strong>Mobile-First Design</strong> – Works perfectly on all devices without compromising security<br />
   <strong>GDPR/Privacy Compliant</strong> – No external API calls, no user data sharing<br />
   <strong>Accessibility Focused</strong> – Screen reader compatible with alternative input methods</p>
<h3><strong>How It Works (The Smart Way):</strong></h3>
<ol>
<li><strong>Interactive Puzzle Challenge</strong> – Users arrange randomized symbols into logical order</li>
<li><strong>Server-Side Validation</strong> – Each puzzle is uniquely generated and hashed for maximum security</li>
<li><strong>Automatic Bot Blocking</strong> – Failed attempts trigger puzzle regeneration</li>
<li><strong>Seamless Login Experience</strong> – Humans solve it in seconds, bots can’t crack it</li>
</ol>
<p>Puzzle data is generated server-side, hashed securely, and expires automatically to prevent replay attacks.</p>
<h3><strong>Features</strong></h3>
<h3>Core Security</h3>
<ul>
<li>Drag-and-drop puzzle CAPTCHA system</li>
<li>Server-side validation with WordPress salts</li>
<li>Automatic puzzle expiration (configurable)</li>
<li>Brute-force attack protection</li>
<li>Nonce-based replay attack prevention</li>
</ul>
<h3>Administration & Control</h3>
<ul>
<li>Simple settings panel in WordPress admin</li>
<li>Adjustable puzzle difficulty (4-12 symbols)</li>
<li>IP whitelisting capabilities</li>
<li>Failed attempt threshold configuration</li>
</ul>
<h3>User Experience</h3>
<ul>
<li>Fully responsive design</li>
<li>Mobile-optimized interface</li>
<li>Keyboard navigation support</li>
<li>Screen reader compatibility</li>
<li>Visual feedback for interactions</li>
</ul>
<h3>Technical Excellence</h3>
<ul>
<li>100% self-hosted solution</li>
<li>No external API dependencies</li>
<li>Lightweight codebase</li>
<li>Regular security updates</li>
<li>Compatible with most security plugins</li>
</ul>
<h3>Admin Configuration</h3>
<p>Puzzle Gate includes a settings page where administrators can:</p>
<ul>
<li>Enable or disable the puzzle CAPTCHA</li>
<li>Set puzzle difficulty (number of symbols)</li>
<li>Enable the puzzle only after X failed login attempts</li>
<li>Whitelist trusted IP addresses</li>
</ul>
<h3>Documentation</h3>
<p>Full documentation is available on our website:<br />
<a href="https://www.sigmasqr.com/" rel="nofollow ugc">Puzzle Gate Documentation</a></p>
<h3>Troubleshooting</h3>
<ol>
<li>Ensure the Puzzle Gate plugin is activated and your WordPress version is at least 5.2.</li>
<li>Deactivate other plugins to check for conflicts.</li>
</ol>


Puzzle Gate – Login Security with Smart Puzzle CAPTCHA

Stop bots in their tracks with a human-friendly puzzle CAPTCHA for WordPress logins.

edwardw

<p>This plugin is just a very effective yet simple plugin which adds a question to the comment form that blocks most automated spam-bots by making them answer a common sense question. For optimal effectiveness, you should add multiple questions so that the spambots can’t “memorize” the question and answer. The plugin will display questions at random to prevent the aformentioned memorization. Multiple answers can be added per question to account for variances in answers. (e.g. “five”, “Five”, “5”)</p>
<p>Plugin homepage: http://www.compdigitec.com/apps/wpnobot</p>
<p>Please drop a <a href="http://www.compdigitec.com/labs/2011/10/09/wp-no-bot-question-plugin-for-wordpress/" title="WP No-bot Question plugin for WordPress" rel="nofollow ugc">comment</a> if it works for you, if you found any bugs or if you have suggestions/ideas for this plugin – complaints welcome!</p>


WP No-Bot Question

Simple question that blocks most spambots (and paid robots) by making them answer a common sense question

Puzzle Gate – Login Security with Smart Puzzle CAPTCHA vs WP No-Bot Question