SEO Checker

Instantly checks any page for 50 SEO issues: meta, headings, links, images, schema, performance, and more.

SEO Checker – Fast On-Page SEO Audit Analyze any webpage instantly with automated SEO checks directly inside your browser. Review technical SEO, content structure, metadata, links, images, and structured data in one simple popup. No setup required. Open any page and start auditing. --- WHAT SEO CHECKER CHECKS Meta & Indexing • Title tags and length • Meta descriptions • Canonical tags • Noindex and robots directives • Duplicate or conflicting tags Content & Headings • H1 presence and heading structure • Duplicate headings • Word count • Keyword usage • Thin content signals • Hidden text detection Technical SEO • HTTPS usage • Viewport and charset • HTML lang attribute • Favicon presence • URL structure issues • Mixed content warnings • DOM size Performance Hints • Render-blocking resources • Heavy scripts and assets • Font loading issues (Note: This is not a Core Web Vitals measurement tool) Images • Missing alt text • Oversized images • Responsive image usage • Lazy loading checks Links • Internal and external links • Duplicate links • Empty anchor text • Nofollow usage Structured Data • Schema markup detection • JSON-LD presence • Missing recommended fields Social Tags • Open Graph tags • Twitter Cards • Social preview readiness --- HOW IT WORKS 1. Open any webpage 2. Click SEO Checker 3. Audit runs instantly 4. Review issues by category --- PRIVACY Runs locally in your browser. • No tracking • No data collection • No data selling --- OPTIONAL: SEARCH CONSOLE Connect Google Search Console to view: • Clicks • Impressions • CTR • Average position • Query data --- PERMISSIONS • Storage – saves settings • Active Tab – analyzes current page • Identity – optional Google login