The latest articles on DEV Community by Mohsen Avid (@avidseo). https://dev.to/avidseo https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3825239%2F03355fef-45d9-4682-b9e9-e24002b86d78.jpg https://dev.to/avidseo en Mohsen Avid Sun, 15 Mar 2026 11:40:58 +0000 https://dev.to/avidseo/how-we-built-a-lightweight-e-e-a-t-seo-radar-extension-g3c https://dev.to/avidseo/how-we-built-a-lightweight-e-e-a-t-seo-radar-extension-g3c <p>As technical SEOs, we rely heavily on browser extensions to quickly audit web pages. But there was a problem: most SEO tools out there are bloated, require account sign-ups, or send DOM data to third-party servers to be processed. </p> <p>At <a href="https://kholase.com" rel="noopener noreferrer">Kholaseh Agency</a>, we believe in privacy, speed, and efficiency. That’s why our development team decided to build the <strong>Kholaseh E-E-A-T Radar</strong>—a 100% client-side, ultra-lightweight browser extension designed to analyze on-page trust signals instantly.</p> <h2> 🚀 What Does It Do? </h2> <p>Instead of relying on external APIs, this extension uses pure Vanilla JavaScript to parse the active tab's DOM and extract crucial SEO entities:</p> <ul> <li> <strong>Content Depth:</strong> Accurately counts words and characters.</li> <li> <strong>Structure Analysis:</strong> Maps out H1, H2, and H3 tags to ensure logical hierarchy.</li> <li> <strong>Link &amp; Asset Auditing:</strong> Scans for internal/external links and images missing <code>alt</code> attributes.</li> <li> <strong>E-E-A-T Signals:</strong> Evaluates schema markups and author trust signals directly from the page source.</li> </ul> <h2> 🔒 Privacy-First Approach </h2> <p>The core philosophy behind this tool is security. The extension requests minimal permissions (<code>activeTab</code> and <code>scripting</code>) and performs all calculations directly within the user's browser. <strong>No data is collected, stored, or transmitted.</strong></p> <h2> 💻 Open Source &amp; Available Now </h2> <p>We decided to open-source the core logic of the Kholaseh SEO Radar so other developers and digital marketers can learn, contribute, or adapt it for their own needs. </p> <p>You can check out the source code, fork the repository, or download the latest release on our GitHub:<br> 👉 <strong><a href="https://github.com/mohsenavid/kholaseh-seo-radar" rel="noopener noreferrer">Kholaseh SEO Radar on GitHub</a></strong></p> <p>If you are interested in advanced technical SEO strategies, content optimization, or need a custom web solution, feel free to visit us at <strong><a href="https://kholase.com" rel="noopener noreferrer">Kholaseh Digital Marketing Agency</a></strong>.</p> <p>Let me know in the comments what features you think are essential for a perfect SEO extension! 👇</p> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code> </code></pre> </div> javascript webdev