Rank Lens

Instant SEO audit. Check meta tags, headings, links, images, schema & indexability in one click.

Complete On-Page SEO Audit & Technical SEO Checker RankLens is a powerful SEO audit Chrome extension that performs instant on-page SEO analysis directly in your browser. Analyze meta tags, headings, links, images, structured data, and indexability signals without opening DevTools or external tools. Perfect for SEO professionals, developers, marketers, and website owners. 🚀 Key Features – SEO Analysis Made Simple 🏷 Meta Tag Checker Title tag length optimization (50–60 characters) Meta description checker (150–160 characters) Canonical URL validation Robots meta (noindex / nofollow detection) Open Graph tags (og:title, og:description, og:image, og:url) Twitter Card tags validation Charset & viewport verification 🧱 Heading Analyzer (H1–H6) Missing H1 detection Multiple H1 warning Heading hierarchy validation Empty heading detection Complete heading structure overview Improve your on-page SEO structure and semantic HTML instantly. 🔗 Link Analyzer Internal vs external link classification Nofollow link detection target="_blank" security check (noopener/noreferrer) Empty anchor text detection JavaScript pseudo-links detection Link count statistics Optimize internal linking and prevent SEO link issues. 🖼 Image SEO Checker Missing ALT attributes Empty ALT detection Lazy-loading detection Image count overview Improve accessibility and image SEO performance. 🧩 Structured Data & Schema Checker JSON-LD extraction and validation Microdata detection Schema.org type identification Invalid JSON structured data detection Ensure your website is ready for rich results. 📈 Indexability & Robots.txt Checker Meta robots noindex detection Canonical conflicts robots.txt fetch and analysis Basic crawl rule evaluation Understand how search engines see your page. ⚡ Built for Modern Websites Works with React, Next.js, Vue, and SPAs Handles dynamic DOM rendering Lightweight and fast No heavy external dependencies 🎯 Who Should Use This SEO Extension? SEO professionals Web developers Technical SEO specialists Digital marketers Content teams SaaS founders Agencies performing website audits Why Choose RankLens? Instead of using multiple SEO tools, get a comprehensive on-page SEO audit in one clean, structured interface. Identify errors, warnings, and optimization opportunities instantly. Save time. Improve rankings. Fix technical SEO issues faster.