Performance Tool

Website performance audit

Measure how quickly a page loads (desktop by default), then get clear next steps to improve it. Guests get a limited check; Starter and Pro unlock richer metrics and saved reports.

Audit a page

Enter a public URL to measure load performance.

Guest (local check) — local speed check only (no Google APIs). Upgrade to Starter or Pro for PageSpeed lab scores and Chrome UX (CrUX) real-user data.
Local response-time check · Starter / Pro for Google PageSpeed + CrUX
Enter the correct answer.
Today’s tool allowance
  • Domains: 3 left of 3
  • Unique URLs: 10 left of 10
  • Runs: 10 left of 10

Create a free account or see plans for higher limits.

Public URLs only. Results may be cached for a short time to keep the tool fast.

Website performance audit

Measure how quickly a public page responds and renders. Guests get a practical local speed check; Starter and Pro unlock richer PageSpeed Insights-style metrics and Chrome UX Report (CrUX) field data where available—so you can compare lab results with real-user experience.

What a performance audit helps you find

Slow server responses, heavy images, render-blocking resources, and weak caching often dominate the score. The report prioritizes fixes that improve perceived speed: compress images, defer non-critical scripts, shrink CSS/JS, and use a CDN when traffic is global.

Best practices after you run the tool

  • Optimize hero images and lazy-load below-the-fold media
  • Remove unused third-party tags (see our third-party scripts tool)
  • Enable compression and long-cache headers for static assets
  • Retest mobile and desktop after each meaningful change

Frequently asked questions

Lab vs field data—what’s the difference?

Lab is a controlled run; field (CrUX) reflects real Chrome users when Google has enough data for your origin.

Will this replace Lighthouse?

It is a convenient audit for public URLs. Use browser Lighthouse for deep local debugging too.