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glossary/core web vitals

What Are Core Web Vitals? SEO Definition | SEO AEO Specialist SEO & AEO Specialist

In short

Core Web Vitals are Google's metrics for loading (LCP), interactivity (INP) and visual stability (CLS), used as page-experience ranking signals. Largest Contentful Paint measures how fast main content appears, Interaction to Next Paint measures responsiveness to user input, and Cumulative Layout Shift measures how much the layout unexpectedly moves.

These metrics matter because they quantify real-world user experience, and Google uses them as part of how it ranks pages. Slow loading, laggy interactions, or content that jumps around frustrates visitors and can hold back your visibility, especially in competitive results where experience is a tiebreaker.

Improving Core Web Vitals usually means optimizing images, reducing heavy scripts, reserving space for elements, and streamlining how pages render. They form a key part of technical health alongside crawlability and semantic structure, all of which a thorough audit reviews. SEO AEO Specialist helps you diagnose and fix these issues, not just measure them. Learn more in the SEO audit. Back to the SEO & AEO glossary.

01

FAQ

What are good Core Web Vitals scores?

Google considers a page good when Largest Contentful Paint is within about 2.5 seconds, Interaction to Next Paint stays low for responsiveness, and Cumulative Layout Shift is minimal. Meeting these thresholds signals a smooth experience, though the exact targets are best confirmed in Google's current documentation.

Do Core Web Vitals affect rankings?

Yes, Core Web Vitals are part of Google's page-experience signals and can influence rankings, particularly as a differentiator between pages of similar relevance. They are not the single most important factor, but poor scores can undermine otherwise strong content and hurt user engagement.

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