Website Speed Test
Run Google Lighthouse on phone or desktop, with Core Web Vitals and what to fix first.
Performance score
Enter a URL to start
Real users
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Device
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LCP
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TBT
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CLS
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Not started
- RequestWaiting for inputSent to Google
- Load—On Google’s servers
- Lab test—Lighthouse
- Real users—Chrome UX Report
Speed report
Enter a page URL above. Google Lighthouse tests it on an emulated phone or desktop, and the full report appears here: score, Core Web Vitals, filmstrip, page weight and what to fix first.
Fair-use limit for each visitor IP address: 12 tests per hour and 40 per day. Results are cached for 30 minutes per page and device.