Page Speed Analyzer
Test any URL with Google PageSpeed Insights and get scored, prioritized fixes.
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About this tool
Powered by the official Google PageSpeed Insights API, this analyzer runs a Lighthouse test on your URL for mobile or desktop and reports the performance score, lab metrics (FCP, LCP, TBT, CLS, Speed Index) and the top improvement opportunities with estimated savings.
How to use the Page Speed Analyzer
- Enter a URL and choose mobile or desktop.
- Wait ~20 seconds for the Lighthouse run.
- Work through the opportunities list, largest savings first.
Frequently asked questions
Why do scores vary between runs?
Lab conditions fluctuate; treat the score as a range and focus on the metric values and opportunities.
Mobile or desktop score — which matters?
Mobile: Google predominantly uses mobile-first indexing and mobile CWV.