Core Web Vitals
Noun · Development
Definitions
Google's three key metrics for web page user experience: LCP (Largest Contentful Paint — loading speed), INP (Interaction to Next Paint — responsiveness), and CLS (Cumulative Layout Shift — visual stability). These metrics influence search rankings and are measured from real user data (CrUX).
In plain English: Google's three measurements of how fast, responsive, and visually stable your website feels to real users.
Example: "Our LCP is 4.2 seconds — we need to get it under 2.5s to pass Core Web Vitals and stop losing SEO ranking."