Look beyond a single score
Measure Largest Contentful Paint, Cumulative Layout Shift, Total Blocking Time, First Contentful Paint and Speed Index alongside Lighthouse category scores.
Experience / Page speed
Make every first impression faster.
Explore the metrics behind a smoother page experience, with readable reports and practical next steps.
Lighthouse lab testingMobile and desktop context
Device settings help explain the conditions of a test. Compare runs under consistent conditions instead of treating one score as a universal result.
Lab data, clearly labeled
A Lighthouse lab run is a controlled observation. It is not a field Core Web Vitals assessment of your actual visitors.
Current availability
Real mobile and desktop speed tests run in an isolated Chromium/Lighthouse worker. Full reports include audit evidence, resource waterfalls, transfer breakdowns and captured visual progress. No domain verification is needed. Free reports contain a summary.
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