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Performance

Tools for analyzing page speed and Core Web Vitals.

Tools

1 tool

Core Web Vitals

Free

Analyze page performance with Google's Core Web Vitals. LCP, INP, CLS metrics with optimization recommendations.

5 checks

Frequently asked questions

Yes. Since 2021, Core Web Vitals (LCP, INP, CLS) are confirmed Google ranking factors as part of the Page Experience signals. Pages with poor scores may rank lower than competitors with better performance, especially on mobile.

Largest Contentful Paint (LCP) measures loading performance. A good LCP score is under 2.5 seconds. Between 2.5 and 4 seconds needs improvement. Above 4 seconds is poor. Common fixes include optimizing images, reducing server response time, and minimizing render-blocking resources.

Interaction to Next Paint (INP) replaced First Input Delay (FID) as a Core Web Vital in March 2024. INP measures overall page responsiveness by considering all user interactions, not just the first one. A good INP score is under 200 milliseconds.

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