Lighthouse Score Checker
Run a real Google Lighthouse audit on any URL - performance, accessibility, SEO, best practices, and Core Web Vitals.
Lighthouse Score Checker is free - sign up to run it.
This tool uses live SEO data, so we ask for an email - that's it. Every account gets 1 free run of every advanced tool, every month. No card, no spam, no upsells.
Core Web Vitals are a confirmed Google ranking factor and the foundation of user experience. This tool runs a real Google Lighthouse audit on any URL and returns scores for performance, accessibility, SEO, and best practices, plus the actual Core Web Vitals (LCP, INP, CLS) measurements. Use it to find slow pages before Google does.
Frequently asked questions
What's a 'good' Lighthouse score?
90+ is great, 50-89 needs work, under 50 is poor. SEO and accessibility should be 95+ on every page. Performance is harder - mobile scores in the 70s are realistic for content sites.
How is this different from running Lighthouse in Chrome?
Same engine, but runs in the cloud so it's reproducible and not affected by your local machine. Useful for comparing pages or tracking over time.
What are Core Web Vitals?
Three metrics Google uses for ranking: LCP (largest contentful paint), INP (interaction to next paint), and CLS (cumulative layout shift). All three affect rankings.

Launch your AI-built app with confidence
Code audits, security reviews, platform migrations, and custom development to get your app production-ready.
Long-form guides on the strategy behind the tool.
What is SEO? A Founder's Definition (2026)
SEO explained for founders: what it is, why it matters, and the easiest path to ranking.
Read guide →SEO for SaaS: A Practical Guide
Practical SEO for SaaS founders - what to do, in what order, with realistic timelines.
Read guide →SaaS SEO Strategy: The Complete Playbook
Build a SaaS SEO strategy from zero: keyword research, content clusters, on-page tactics, and pSEO that compounds.
Read guide →More free SEO tools
Free tools to plan, audit, and ship better SEO pages.
Want this done for you?
Book a 15-minute call or request a quote. We build 50+ pSEO pages for clients, starting at $300.