loading
loading
Google’s user-experience metrics for loading speed, responsiveness, and visual stability.
Core Web Vitals help measure whether a page feels fast and stable. They are not the whole quality story, but they matter for SEO and user conversion.
Plainly
Think of Core Web Vitals as the checklist that keeps the app open for real people. Google’s user-experience metrics for loading speed, responsiveness, and visual stability.
In practice
Use it when a change has to survive deploys, users, incidents, analytics, or billing reality. In practice, define the owner, input, output, and failure mode before you rely on it.