Core Web Vitals Checker

Analyse LCP, INP, and CLS for any URL using Google PageSpeed Insights.

Target Benchmarks

LCP

Good under 2.5s

INP

Good under 200ms

CLS

Good under 0.10

Performance Scale

SlowFast

Run a check to see performance metrics and optimization priorities.

Frequently asked questions

Which Core Web Vitals does this checker review?

It reviews LCP, INP, CLS, and supporting performance signals so teams can spot ranking and user-experience bottlenecks.

Can I test mobile and desktop performance?

Yes. The tool supports mobile and desktop checks so you can compare how the same URL performs across device contexts.