Core Web Vitals
Core Web Vitals are Google's metrics for loading speed, interactivity, and visual stability, measured on real user visits.
Core Web Vitals are Google's user-experience metrics measuring how fast a page loads its main content (Largest Contentful Paint), how quickly it responds to interaction (Interaction to Next Paint), and how visually stable it is while loading (Cumulative Layout Shift), based on real user visits.
How it works
Google collects field data from Chrome users and grades each metric as good, needs improvement, or poor. Common fixes include compressing and properly sizing images, reducing JavaScript execution, setting explicit dimensions on media to prevent layout shift, and serving content from a CDN. Lab tools estimate performance, but field data is what counts.
Why it matters
Vitals are a modest ranking signal but a major conversion factor: slow, unstable pages lose users before the page finishes loading. Speed work pays for itself in conversion rate even before any search benefit. Learn more about our conversion rate optimization services.
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