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Free SEO Audit Tool: Score Any Site in 20 Checks

A free SEO audit tool scores any site across the signals Google and AI assistants use to rank and cite pages in 2026. Enter your URL. In about fifteen seconds you get a composite MM SEO Score from live Google PageSpeed Insights data plus twenty on-page, technical, schema, robots and mobile checks. Full report on screen. No signup.

FAQ

Frequently Asked Questions

What does a free SEO audit tool actually check?

This free SEO audit tool runs 20 checks across six categories: Performance (Core Web Vitals, LCP, INP, CLS), On-Page (title, meta description, H1, headings), Technical (status codes, canonical, HTTPS), Schema (JSON-LD presence and type), Robots (robots.txt and sitemap.xml) and Mobile (viewport, tap targets). Each returns pass, warn or fail with the exact fix.

How accurate is the SEO audit score?

The SEO audit tool uses live Google PageSpeed Insights data (real Chrome UX field data where available), parses your actual HTML for meta tags, headings and JSON-LD schema, and fetches your robots.txt and sitemap.xml directly. There are no synthetic estimates. Every check passes, warns or fails based on observed state.

What is the composite MM SEO Score?

A weighted average across all 20 checks across 6 categories. Performance and On-Page carry the heaviest weight because they drive both Google ranking and AI assistant citation. Verdict thresholds: 90 or above excellent, 80 to 89 strong, 65 to 79 moderate, 45 to 64 weak, below 45 poor.

What is a good SEO audit score for 2026?

85 or higher is strong across the board. 90 or higher is top-decile. Below 65 means serious structural problems. The score alone matters less than the per-category breakdown: a site at 72 overall but 90 on Performance has very different priorities than a site at 72 overall but 90 on Schema.

Why only 20 checks and not 200?

These are the 20 that actually move the needle in 2026. Hundreds of other micro-checks exist (anchor text ratios, keyword density, old meta keywords tag). Most are legacy SEO that stopped mattering a decade ago. The tool ships what makes a real difference and leaves the fake-depth to the paid tools that charge per check.

Is this SEO audit tool really free with no signup?

Yes. Every audit shows the full report on screen with every check and the exact fix per failure. No signup, no email gate, no credit card. Rate-limited to 5 audits per IP per day because Google PageSpeed API calls cost money. No retargeting pixel, no third-party trackers.

Will Middle Mann fix the issues the SEO audit finds?

Yes. The AI SEO and GEO service covers audit, schema overhaul, answer-ready content refactor, entity work and daily rank tracking across ChatGPT, Gemini, Claude, DeepSeek, Grok, Perplexity, Copilot and Google. Pricing starts at a one-time Assessment and scales to monthly retainer.

Glossary

SEO audit terms used by the tool.

Core Web Vitals
A Google ranking signal set that measures real user experience. The three vitals are Largest Contentful Paint (loading), Interaction to Next Paint (responsiveness) and Cumulative Layout Shift (visual stability). Pages that pass all three on 75 percent of visits rank better in Google.
PageSpeed Insights
Google's free tool that measures page performance, Core Web Vitals and 50+ Lighthouse audits for any URL. The SEO audit tool calls the PageSpeed Insights API directly so your score matches what Google actually sees, not a synthetic estimate.
Chrome UX Report (CrUX)
Real user performance data Google collects from Chrome users who opt in. CrUX is the ground truth for Core Web Vitals ranking. When available, this audit shows CrUX field data; when a URL has not been visited enough to generate CrUX data, we fall back to lab data from PageSpeed Insights.
MM SEO Score
A weighted average across all 20 checks across 6 categories (Performance, On-Page, Technical, Schema, Robots, Mobile). Performance and On-Page carry the heaviest weight because they drive both Google ranking and AI assistant citation.
About the Tool

What this tool does.

A free SEO audit scores your page against 20 real signals that Google and AI assistants use to decide whether to rank you or cite you.

Most free SEO audits run static checks against a scraped version of your site, estimate the result, and gate the real number behind an email. We run live calls against Google PageSpeed, fetch your actual HTML, parse your meta tags, headings, schema and robots directives, and hand you the composite MM SEO Score with every category broken out. Every audit shows the full report on screen with every check and the exact fix per failure. No signup, no email gate.

The audit covers six categories: Performance (PageSpeed, Core Web Vitals, Chrome UX data), On-Page (titles, descriptions, H1 structure, heading hierarchy), Structured Data (JSON-LD count, Open Graph, Twitter Card, favicon), Technical (robots.txt, sitemap.xml, HTTPS, robots meta), Mobile (viewport, tap targets, font sizing), and Content (word count, image alt text, link counts). Fix the fails, re-run the audit, watch the score climb. For whole-site overhauls, that is what the AI SEO service is for.

20 checks across 6 categories.

Real PageSpeed + live HTML parse. No signup.

  • Speed + Core Web VitalsPSI
  • LCP, CLS, TBTChrome UX
  • Titles, Descriptions, H1On-Page
  • Heading HierarchyOn-Page
  • Schema (JSON-LD count)Structured
  • Open Graph + Twitter CardStructured
  • robots.txt + sitemap.xmlTechnical
  • HTTPS + Robots MetaTechnical
  • Mobile Viewport + Tap TargetsMobile
  • Word Count + Alt Text + LinksContent
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