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api.md · Mobile Vitals

Phone form factor, Chrome user field data

LCPneeds improvement
3547ms
Largest Contentful Paint
INP
Interaction to Next Paint
CLSpoor
1.01
Cumulative Layout Shift
FCPneeds improvement
1903ms
First Contentful Paint
TTFBneeds improvement
1377ms
Time to First Byte

Mobile Core Web Vitals often differ from desktop. Learn why in mobile vs desktop vitals.