Free · Browser-only · No signup

Website SEO Score Checker

Two-pass audit on any URL: (1) 22 on-page SEO checks via HTML scrape — title, meta, headings, alt tags, internal links, Open Graph, structured data, robots.txt, sitemap.xml — completes in 1-3s. (2) Google Lighthouse / PageSpeed Insights — real Core Web Vitals (LCP, CLS, INP), Performance score, Accessibility, Best Practices for both mobile + desktop — 15-30s. Failing issues come with concrete fix recommendations.

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Two passes: on-page check (22 weighted SEO checks via HTML scrape — 1-3s) + Google Lighthouse / Core Web Vitals (real-browser performance instrumentation — 15-30s for mobile + desktop). Lighthouse data is fetched from Google PageSpeed Insights API (free, official).

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Inside the tool

What powers the Website SEO Score Checker

22 weighted on-page SEO checks (1-3s)

Google Lighthouse / PageSpeed Insights integration (15-30s)

Real Core Web Vitals (LCP, CLS, INP, FCP, TBT, Speed Index)

Performance + SEO + Accessibility + Best Practices scores

Mobile + desktop in parallel

Failing issues sorted by severity (Critical / Major / Standard / Minor)

Per-check fix recommendation

Title + meta length-target progress bars

Google SERP preview

Page snapshot (canonical, OG image, robots directive, word count, link counts)

Built differently

Why the Website SEO Score Checker is different

Browser-native

The Website SEO Score Checker runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.

No artificial limits

No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.

Production-grade quality

Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.

Use Contexts

Common use contexts

Pre-launch SEO QA on a new page
Competitor SEO benchmarking
Quick health-check on existing pages
Client deliverable audit
Tracking SEO improvements over time

Privacy by design

Private and secure

Zero upload

All processing happens in your browser. Input is never transmitted, logged or cached.

Works offline

Once the page loads, the tool runs without an internet connection. No network calls happen during use.

No tracking

No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.

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FAQ