SEO glossary
Core Web Vitals
Core Web Vitals are three Google metrics — LCP, INP, and CLS — that measure a page's loading, interactivity, and visual stability.
In plain English
LCP times the largest content paint, INP measures responsiveness to input, and CLS quantifies unexpected layout shift. They're part of Google's page-experience signals and are measured on real Chrome users (field data).
Why it matters for SEO
Poor vitals hurt rankings on the margin and, more importantly, drive real users away before the page is usable.
Check this on your own site with the free Core Web Vitals Checker.
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Frequently asked questions
- What is Core Web Vitals?
- Core Web Vitals are three Google metrics — LCP, INP, and CLS — that measure a page's loading, interactivity, and visual stability.
- Why does Core Web Vitals matter for SEO?
- Poor vitals hurt rankings on the margin and, more importantly, drive real users away before the page is usable.
- How does Core Web Vitals work?
- LCP times the largest content paint, INP measures responsiveness to input, and CLS quantifies unexpected layout shift. They're part of Google's page-experience signals and are measured on real Chrome users (field data).
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