SEO DevFix

Analyze SEO issues in real-time and get ready-to-paste code fixes.

SEO DevFix analyzes any web page and gives you ready-to-paste code fixes for every SEO issue detected. No guessing — just copy the fix and paste it in your editor. 200+ SEO checks including: TECHNICAL SEO ✓ HTTPS, canonical URL, viewport, lang attribute ✓ noindex / nofollow detection ✓ Meta refresh redirects ✓ Multiple canonical / title tags ✓ hreflang, AMP link, PWA manifest META TAGS ✓ Title: missing, too short, too long ✓ Meta description issues ✓ Open Graph (og:title, og:image, og:url) ✓ Twitter Cards CORE WEB VITALS (measured live) ✓ LCP — Largest Contentful Paint ✓ CLS — Cumulative Layout Shift ✓ FCP — First Contentful Paint ✓ TTFB — Time to First Byte CONTENT QUALITY ✓ Thin content, keyword stuffing ✓ Lorem ipsum / placeholder text ✓ Missing author, date, reading time ✓ Ad density detection IMAGES ✓ Missing alt text, broken images ✓ Old formats (JPEG/PNG vs WebP) ✓ Missing srcset, dimensions, lazy loading LINKS ✓ Generic anchor text ✓ Missing noopener, nofollow issues ✓ Affiliate links without rel=sponsored ✓ Broken anchor links STRUCTURED DATA ✓ Article, FAQ, BreadcrumbList schemas ✓ Organization, Product, VideoObject ✓ Invalid JSON-LD detection MOBILE SEO ✓ Viewport overflow ✓ Tap targets too small ✓ Intrusive popups detection ✓ Font size issues E-E-A-T SIGNALS ✓ Missing About / Contact / Privacy pages ✓ No author bio, no social links ✓ Cookie consent (GDPR) PERFORMANCE ✓ Render-blocking scripts ✓ DOM size, too many external scripts ✓ Google Fonts optimization ✓ Missing preconnect / dns-prefetch 100% private. All analysis runs locally in your browser. No data sent anywhere. No account required.