Core Web Vitals

By · July 18, 2026

Core Web Vitals explained, a BeeRanked diagram
Contents
  1. The three metrics
  2. Why it matters
  3. Sources
  4. Related terms

Core Web Vitals are three metrics Google uses to measure the real-world experience of a web page: how fast it loads, how quickly it responds to input, and how stable its layout is. They are part of Google's page-experience signals (web.dev).

The three metrics

  • Largest Contentful Paint (LCP), loading. Time until the biggest element in view has rendered. Aim for under 2.5 seconds.

  • Interaction to Next Paint (INP), responsiveness. How quickly the page reacts to taps and clicks. Aim for under 200 milliseconds. INP replaced First Input Delay as a Core Web Vital in March 2024 (web.dev: INP).

  • Cumulative Layout Shift (CLS), visual stability. How much the page jumps around while loading. Aim for under 0.1.

Why it matters

Core Web Vitals are a lightweight ranking signal, but their bigger value is plain: a fast, stable page keeps readers, and crawlers, from giving up. They are measured on real Chrome users, so a lab score is a guide, not the verdict.

Sources

Crawl budget · Answer Engine Optimization

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