Free tool
Run a PageSpeed Insights audit for any public URL. You get Lighthouse scores, lab timings (including FCP, LCP, CLS, TBT, Speed Index, TTI), real-user CrUX field data when available, and top improvement hints.
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Workflow
Three quick steps from input to a result you can use in your stack.
Step 1
Paste the full public URL you want audited.
Step 2
Choose mobile or desktop test profile.
Step 3
Read scores, Core Web Vitals-style lab metrics, field data where present, then open the PSI report if you need audits in depth.
Why teams use it
Overview
Website speed test is a practical online utility for day-to-day business and content workflows. It is designed to reduce friction in common tasks so you can move from input to result quickly. Instead of installing heavy desktop tools, you can run the process in-browser and export output immediately.
Teams often need fast one-off tools without onboarding overhead. Website speed test helps with exactly that: quick execution, straightforward controls, and downloadable output. It works well for freelancers, small teams, and operators who need reliable utility actions inside modern workflow stacks.
For the best results, use clear input data, verify final output before publishing, and keep copies of generated assets in your project folders. If you use the output in client-facing documents, review labels and formatting for consistency with your brand and compliance requirements.
Answers
From Google PageSpeed Insights, running the Lighthouse engine on your URL. Performance, Accessibility, Best practices, and SEO scores are Lighthouse outputs—not guessed values.
Mobile mimics a mid-tier phone on a slower connection—closest to everyday visitors. Desktop uses a faster profile. SEO often hinges more on mobile numbers.
FCP: first pixels appear. LCP: main content paints. CLS: unwanted layout jumps. TBT: main-thread blocking after FCP. Acronyms stay standard globally; your scores use the audited page’s data.
Yes, when Google publishes enough Chrome User Experience Report data for your URL or origin. The strip shows observed LCP, INP, CLS, and FCP from real browsers.
Results are cached for about six hours per URL and strategy to respect PSI quotas—the next refresh happens automatically afterward.
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