Glossaries
Core Web Vitals

Core Web Vitals

Core Web Vitals are Google’s metrics for site speed, responsiveness, and visual stability.

Table of contents

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Definition

Core Web Vitals measure Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and Interaction to Next Paint (INP).

Why it matters

They impact user experience and search rankings.

Use Cases

Example: A site with LCP over 4s fails CWV and risks lower rankings.

Use Cases

Performance Tracking

Monitor speed and UX.

SEO Ranking Factor

Meet Google’s UX standards.

Technical Optimization

Fix slow-loading elements.

Use GSC & Lighthouse reports.

Monitoring

Frequently Asked Questions

What are Core Web Vitals?

Google’s UX performance metrics.

Which metrics count?

LCP, CLS, INP.

Do they affect rankings?

Yes, they are part of page experience.

How to measure them?

LCP < 2.5s, CLS < 0.1, INP < 200ms.

What is a good score?

LCP < 2.5s, CLS < 0.1, INP < 200ms.

Related Terms

Canonical Tag

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Semantic SEO

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Indexing API

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Content Pruning

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