Website PerformanceFree resourcesby Google (Chrome for Developers)

Web.dev Measure: Current Status and Official Alternatives

Web.dev's Measure tool (web.dev/measure) — a hosted Lighthouse-based tester — has had changing availability, and its functionality largely overlaps PageSpeed Insights today. Rather than link to a possibly-stale tool URL, this page points you to the stable official resources: PageSpeed Insights for hosted testing, the web.dev performance guides for learning, and Lighthouse documentation for local auditing. Verified October 2026; check the linked official pages for the latest status.

Provider:: Google (Chrome for Developers)
Access:: Free resources
Account:: Not required
Best for:: Learning performance skills on official Google material

Visit Web.dev Measure & Performance Resources All free SEO tools

What is Web.dev Measure & Performance Resources?

Web.dev is Google's documentation hub for web fundamentals, hosting the canonical guides on Core Web Vitals, loading performance, and rendering — the “why” behind every PSI recommendation. Its hosted Measure tester was convenient, but availability shifted over time while PageSpeed Insights remained the stable hosted path running the same Lighthouse engine.

Our recommendation: learn on web.dev, test on PageSpeed Insights, audit locally with Lighthouse. That trio is maintained, documented, and free — with no dependence on any single experimental hosted page.

Main features

Web.dev learn paths
Structured courses on performance, Core Web Vitals, and responsive design from the Chrome team.
PageSpeed Insights (stable tester)
The maintained hosted tester running Lighthouse with field data — use this instead of Measure.
Lighthouse docs
Official documentation for running the same audits locally and in CI.
Case-study library
Published performance wins with methodology — useful for justifying optimization work.

Is Web.dev Measure & Performance Resources free?

All recommended resources are free with no account: web.dev guides, PageSpeed Insights testing, and Lighthouse. There is no paid tier for any of them.

No account needed for PageSpeed Insights, Lighthouse, or web.dev guides.

How to use Web.dev Measure & Performance Resources

Start at web.dev and work through the Learn Performance path relevant to your failing metric (LCP, INP, or CLS).
Test the affected pages in PageSpeed Insights to get concrete failing audits.
Match each failing audit to its web.dev guide section and implement the recommended fix.
Re-run Lighthouse locally during development and PSI after deploy to confirm improvement.
Bookmark the guides, not experimental tool URLs — documentation URLs are the stable references.

Advantages and limitations

Where it shines

Authoritative explanations straight from the Chrome team.
Stable recommendation set — no dependence on shifting tool URLs.
Free learning paths suitable for developers and technical SEOs.
Directly maps to PSI/Lighthouse audit output.

Where it falls short

Guides assume developer comfort; beginners may need help implementing.
No hosted bulk testing — same single-URL scope as PSI.
The Measure tool itself should not be bookmarked as a dependency given its changing availability.

Best use cases

Developers
Work through the INP guide to fix interaction delays PSI flags on app-like pages.
Bloggers
Read the image-optimization guides once, then apply the checklist to every post.
Students
Use the structured learn paths as a free performance curriculum.

Alternatives to Web.dev Measure & Performance Resources

PageSpeed Insights
The stable hosted tester running the same Lighthouse engine. Official site
Lighthouse
Local audits with the same checks, plus CI support. Official site
Google Search Console
Site-wide Core Web Vitals tracking to prioritize learning. Official site

Web.dev Measure & Performance Resources FAQ

Is web.dev/measure still available?

Its availability has changed over time. Because PageSpeed Insights runs the same Lighthouse engine with the addition of field data, we recommend PSI as the stable hosted tester and web.dev for learning.

Where should I learn Core Web Vitals?

On web.dev's performance documentation and Chrome for Developers guides — they define the metrics PSI and Search Console report on.

Do I need an account for any of this?

No. Web.dev guides, PageSpeed Insights, and Lighthouse are all free without accounts.

Sources and official documentation

Official sources are listed separately from RankMeDaily's commentary above. Product details verified 2026-10-13; confirm current pricing and limits on the provider's site.