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Technical SEOUpdated Nov 6, 2026

What is Core Web Vitals?

Definition

Core Web Vitals are Google metrics for real-user loading, responsiveness and visual stability: LCP, INP and CLS.

Also known as:page experience metrics

Use field data

Search Console reports what real visitors experience, which can differ from a single lab test on a fast laptop. Prioritize templates that serve many pages, since one fix can improve them all.

Related service: technical SEO services.

Related glossary terms

Largest Contentful Paint (LCP)Largest Contentful Paint measures how long the main content takes to appear. Google considers 2.5 seconds or less good.Interaction to Next Paint (INP)INP is Google's Core Web Vitals metric evaluating overall page responsiveness. It measures the latency of user interactions (clicks, taps, keypresses) until visual update.Cumulative Layout Shift (CLS)CLS measures the visual stability of a web page by tracking unexpected layout shifts during the entire page lifecycle. A score under 0.1 is considered good.
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