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Glossary: Web Performance

Core Web Vitals

Also written: CWV

Google's three user-centered metrics, LCP, INP and CLS, covering loading, responsiveness and visual stability. A page passes when each is good at the 75th percentile.

Where the book teaches it

Related terms

LCP (Largest Contentful Paint)INP (Interaction to Next Paint)CLS (Cumulative Layout Shift)75th percentile