Core Web Vitals

Summary

Google's specific set of user-experience metrics — LCP (loading), INP (interactivity), CLS (visual stability) — used as real ranking signals for search.

How to Learn This

1Check your site's Core Web Vitals in Google Search Console or PageSpeed Insights.
2Learn what causes a poor score in each of the three metrics.
3Fix one concrete issue, e.g. an unsized image causing layout shift (CLS).

Lighthouse

Web Vitals

More topics in Performance

Lazy Loading Image Optimization Memoization Bundle Splitting Virtualization Tree Shaking Code Splitting Caching Lighthouse Web Vitals Prefetching Preloading

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