What are Core Web Vitals? Understanding Google’s Key Metrics for Site Experience

What are Core Web Vitals?

Core Web Vitals are a set of metrics developed by Google to measure user experience quality, focusing on loading speed, interactivity, and visual stability.

Key Core Web Vital Metrics

• LCP (Largest Contentful Paint): Measures loading speed (should be under 2.5 seconds).
• FID (First Input Delay): Measures interactivity responsiveness (should be under 100 ms).
• CLS (Cumulative Layout Shift): Measures visual stability (should be below 0.1).

Why Core Web Vitals Matter

• They directly impact rankings through the Page Experience update.
• They affect user retention and satisfaction.
• They identify technical issues reducing performance.

How to Measure Core Web Vitals

• Google PageSpeed Insights
• Chrome User Experience Report
• Google Search Console

Core Web Vitals FAQ

How often should you test Core Web Vitals?

Test monthly or after major site updates to maintain good scores.

Do Core Web Vitals affect mobile and desktop equally?

Yes, but Google evaluates them separately for each device type.