Free SEO Audit Tool
Lighthouse SEO score + on-page checks. Live.
Drop in a URL and get an instant SEO audit on the technical foundation Google evaluates: title, meta description, headings, canonical, mobile-friendliness, structured data, link quality, image alt text. Powered by Lighthouse via the Google PageSpeed Insights API — the same engine that runs in Chrome DevTools.
No sign-up. No email. No upsell. Results in 20-30 seconds.
Running Lighthouse SEO audit…
SEO audit for
Overall SEO score
On-page SEO checks
Technical & mobile checks
Accessibility (affects SEO & user experience)
→ Want this done end-to-end? See our SEO automation service.
What this tool covers vs a manual audit
This tool checks the technical foundation Google evaluates first. A full SEO audit additionally covers:
- Content quality and search-intent matching
- Keyword targeting and topical authority
- Backlink profile and authority signals
- Competitor positioning
- Internal linking architecture
- Site-wide patterns (programmatic pages, schema strategy)
Technical SEO is necessary but not sufficient. This tool tells you if you're losing rankings to fixable technical issues — which most sites are.
Frequently asked questions
What does the tool actually check?
It runs the SEO and accessibility categories of the Lighthouse audit, plus a parallel pass extracting on-page signals: title length, meta description, viewport, canonical, robots meta, hreflang, image alt text, structured data presence, link text quality. Same engine Google uses.
Does this replace a manual SEO audit?
No. It checks the technical foundation only. Manual audit adds: content quality, keyword targeting, backlink profile, competitor comparison, search intent matching. The technical foundation has to be solid first, though; that's what this tool verifies.
What if my score is high but I still don't rank?
Technical SEO is necessary but not sufficient. Content quality, search intent matching, internal linking, backlink authority, and user behaviour signals all matter. A 95+ score means you're not losing rankings to technical issues — the next thing to look at is content and links.
Why is mobile so much harder to score well on?
Lighthouse simulates a mid-range Android device on a 3G connection. Heavy CSS, images, and scripts cripple mobile but fly on desktop. Google uses mobile-first indexing, so mobile is what counts for ranking.
Can you do a complete SEO audit for me?
Yes — full audit with action plan, competitor analysis, content gap analysis, and link strategy from £650-£1,250. See /seo-automation-cambridgeshire or get in touch.
Other free tools
Want the issues fixed, not just measured?
The tool tells you what's wrong. We fix it — fixed-price, no agency markup. Start with a 30-minute call.