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Lighthouse

Open sourceUpdated recentlyPricing may have changed — not yet verified

Google's lab auditor for performance, accessibility, SEO and best practices.

by Google Chrome Team · Primary workflow: Lab-based quality audits with Core Web Vitals signal

not
scored

No verified editorial score yet. Scores appear only after documented evaluation.

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What it is

Lighthouse generates audited scores for web pages across performance metrics (including Core Web Vitals proxies), accessibility basics, SEO and PWA checks. It powers PageSpeed Insights and runs headless in CI via CLI.

Editorial basis: vendor documentation and public information reviewed by our editors; written originally for this catalog. Hands-on testing has not yet been performed. Last editorial update 2026-08-26.

Editorial assessment

Best for
  • Performance budgets enforced in CI
  • Quick holistic page health snapshots
Not ideal for
  • Real-user monitoring (RUM)
  • Deep load testing
Strengths
  • Zero-cost standard metric vocabulary
  • Programmable via CLI/Node API
Limitations
  • Lab conditions differ from field data
  • Scores vary run-to-run without controlled environments

Hands-on evidence

Vendor information reviewed; hands-on testing not yet completed.

Vendor information reviewed; hands-on testing not yet completed.

When we test this tool ourselves, this section will document the test date, exact scenario, setup experience, example output, integration result and discovered limitations — with reproducibility notes so you can replicate it.

Read our evidence policy →

Pricing

  • Open source

    FreeUnverified

Pricing reflects publicly listed information at research time and is marked unverified until an editor re-checks the vendor’s pricing page. Always confirm on the official site.

Integrations & compatibility

TypeScriptJavaScriptGitHub ActionsPlaywright
Deployment
CLI, Chrome DevTools, Self-hosted CI
Platforms
Windows, macOS, Linux
Languages / SDKs
JavaScript, TypeScript
API available
Yes
Learning curve
Low
Documentation quality
GOOD
Team fit
Solo, Small team, Mid-size, Enterprise
Support
See vendor

Vendor response

Vendors can respond to listings and reviews through the vendor portal. Responses are moderated and labeled. No response has been received for this listing yet.