WebPage Performance Analyzer

Developer productivity tool for analyzing page performance, bundle size, images, JavaScript, CSS, and DOM efficiency.

WebPage Performance Analyzer is a developer-first Chrome extension that analyzes live webpages and detects performance optimization opportunities in real time. Built for frontend developers, performance engineers, and technical teams who care about fast, lightweight, and scalable web experiences. 🔍 What it Analyzes 🖼 Image Optimization • Large image files • Missing lazy loading • Missing width/height attributes • Non-modern formats (WebP/AVIF suggestions) • Total image weight ⚙ JavaScript Performance • Total JS files & size • Blocking scripts in head • Inline script detection • Async/defer suggestions • Basic unused JS detection 🎨 CSS Optimization • Total CSS files • Large stylesheets • Inline styles • Minification suggestions • Unused CSS indicators 🧱 DOM & Layout Health • Total DOM nodes • Deep nesting detection • Layout shift indicators • Reflow risk warnings 📊 Performance Metrics • Page Load Time • DOMContentLoaded • First Contentful Paint • Total Page Weight • Request Count 🎯 Why this? Modern web performance is complex. It gives you instant, developer-focused feedback without needing external tools. No external API calls. No tracking. No marketing fluff. Just actionable performance insights. 🟢 Who Is It For? • Frontend developers • React / Vue / Next.js developers • Shopify developers • WordPress developers • Web agencies • Performance engineers 🔐 Privacy First It runs locally in your browser. It does not collect, store, or transmit any user data. ⚡ Build Faster. Ship Lighter. Speed Is a Feature.