Free SEO Audit Tool — Check Any Webpage in Seconds

I built a free SEO audit tool that checks any webpage and gives you an instant score.

https://devtools-site-delta.vercel.app/seo-audit

What It Checks (12 Points)

1. Title Tag — Length, presence (30-65 chars optimal)
2. Meta Description — Length, presence (120-160 chars optimal)
3. H1 Tag — Exactly 1 per page
4. H2 Tags — At least 1 for content structure
5. Open Graph Title — For social sharing
6. OG Description — For social previews
7. OG Image — Social media image (1200x630)
8. Twitter Card — Twitter/X sharing format
9. Viewport Meta — Mobile-friendliness
10. Canonical URL — Duplicate content prevention
11. HTTPS — Security
12. Image Alt Tags — Accessibility + SEO

How to Use

1. Paste any URL
2. Click "Audit"
3. Get a score 0-100 with detailed breakdown
4. Fix the red items first

All processing happens in your browser. The page content is fetched via a CORS proxy.

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All free at DevTools.run — 250+ tools.