Speed & Core Web Vitals
The metrics Google measures on real visitors, what slows a page down and how to make it fast.
Fix pages
Core Web Vitals and lab metrics
4 of 8- How to fix Largest Contentful Paint (LCP)High impact.Fixes
lcp+11 min - How to fix Interaction to Next Paint (INP)High impact.Fixes
inp+11 min - How to fix Cumulative Layout Shift (CLS)High impact.Fixes
cls+21 min - How to improve First Contentful Paint (FCP)High impact.Fixes
fcp+11 min
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- How to reduce Time to First Byte (TTFB)High impact.Fixes
ttfb+11 min - How to reduce Total Blocking Time (TBT)High impact.Fixes
tbt1 min - What Speed Index means and how to improve itHigh impact.Fixes
speed-index1 min - How the Lighthouse performance score worksFor information.Fixes
lighthouse-performance-score1 min
Images
3 of 3JavaScript and the main thread
4 of 5- How to reduce unused JavaScriptMedium impact.Fixes
unused-js1 min - How to control third-party script weightMedium impact.Fixes
third-party-weight1 min - How to reduce an excessive DOM sizeMedium impact.Fixes
dom-size1 min - How to avoid long main-thread tasksMedium impact.Fixes
long-tasks1 min
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CSS and fonts
3 of 3Server, compression and caching
3 of 3Check all 30 at once
The Speed test runs every check on this page against your site.