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Core Web Vitals

A set of specific factors that Google considers important in a webpage's overall user experience.

Categoryweb

Overview

Core Web Vitals are a subset of Web Vitals that apply to all web pages. They measure key aspects of the user experience: loading, interactivity, and visual stability. Google uses these as ranking signals for search results.

The Three Pillars

  1. Largest Contentful Paint (LCP): Measures loading performance.
  2. First Input Delay (FID): Measures interactivity (being replaced by INP).
  3. Cumulative Layout Shift (CLS): Measures visual stability.

Importance

Optimizing for Core Web Vitals improves user satisfaction, reduces bounce rates, and can lead to better search engine rankings.

Related Terms

Largest Contentful PaintFirst Input DelayCumulative Layout ShiftSEOLighthouse