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⚡ Core Web Vitals Checker

Core Web Vitals Checker

Measure LCP, INP and CLS using Google’s own PageSpeed Insights data — real Chrome users where available, plus a lab test.

Free planNo card neededResults in minutes

What the Core Web Vitals Checker checks

  • Largest Contentful Paint (loading)
  • Interaction to Next Paint (responsiveness)
  • Cumulative Layout Shift (visual stability)
  • Time to First Byte and First Contentful Paint
  • Mobile and desktop results side by side
  • Performance history over time

Why it matters

We use Google’s data rather than inventing our own speed score, so what you see matches what Google measures for page experience.

How to use it

  1. Create a free account and add your website.
  2. Run an audit — or open this tool from the dashboard sidebar.
  3. Fix the items in order of impact, assign them as tasks, and re-run to confirm.

Try it on your website

Free plan: 1 website · 100 pages · 4 audits a month.

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Part of Anjok SEO: audits, AI-search readiness, Search Console insights, monitoring and reports in one place.
FAQ

Core Web Vitals Checker — questions

Why does field data sometimes say “no data”?

Google only reports real-user data for pages with enough Chrome traffic. Lab data is always available.

What are good Core Web Vitals?

LCP under 2.5 s, INP under 200 ms and CLS under 0.1 at the 75th percentile.

Is this a ranking factor?

Page experience is one of many signals. Great content still matters most, but slow pages lose visitors.

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