One URL, Five Checks: Building a Free Website Audit Tool

Most website audit tools check one thing at a time. You test SEO on one site, run a link checker on another, and check performance somewhere else. What if one tool ran all five checks in parallel? I built exactly that: a free website audit tool that runs SEO analysis, broken link detection, performance metrics, tech stack detection, and a screenshot capture — all from a single URL input. What It Checks Enter any URL and get a comprehensive report card: 1. SEO Audit (Score 0-100) Checks title tags, meta descriptions, heading hierarchy, image alt text, mobile viewport, Open Graph tags, canonical URLs, structured data, and more. Returns a letter grade (A-F) with specific issues and recommendations. 2. Broken Link Detection Crawls the page and checks every link — internal and external. Reports broken links with HTTP status codes and source URLs. A single broken link can hurt user experience and SEO. 3. Performance Metrics Measures response time, page size, HTTP status, server info, redirec