Overview
Lighthouse runs inside Chrome DevTools or from the command line and scores a page on performance, accessibility, best practices and basic SEO. Developers can run it in CI to catch regressions.
Who it's for
Developers who want audits in their own workflow.
Key features
- Performance audit
- Accessibility audit
- SEO checks
- CLI & CI usage
Pros
- Free and open source
- Runs locally or in CI
- Covers accessibility too
Cons
- Lab data only
- SEO checks are basic
Lighthouse alternatives
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Google's own data on how your site performs in search.
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Google's free test for Core Web Vitals and page speed.
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