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Check Core Web Vitals for your whole site
LCP, INP and CLS for every page, from real visitors.
Testing one URL at a time hides the pattern. Metrik checks every page in your sitemap, groups them by template and shows which pass Core Web Vitals, which fail and the element responsible.
- Accepted formats
- URL
- XML sitemap
- Export formats
- CSV
50 free credits a month · no card needed
How it works
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Add your sitemap
Enter your domain or sitemap URL. Metrik finds your pages and groups them by template: product, article, category and so on.
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Get both kinds of data
Field data from real visitors at the 75th percentile, when there is enough traffic, plus a lab test on mobile and desktop for every page.
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Fix what matters
Each failing page shows the element behind the problem, such as a late hero image, a shifting banner or a slow script, and is checked again every day.
Key facts
- Metrics
- LCP, INP and CLS, plus TTFB and FCP
- Good thresholds
- LCP ≤ 2.5 s, INP ≤ 200 ms, CLS ≤ 0.1
- Data
- Real-user field data (75th percentile) and lab tests
- Devices
- Mobile and desktop
- Updates
- Daily, with alerts when a page starts failing
- Input
- Domain or XML sitemap
Why use it
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The whole site, not one URL
Problems usually come from a template. Grouping pages shows you the single fix that improves hundreds of URLs.
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The culprit, named
For each failure you see the exact element: the hero image that loads late, the ad slot that shifts, the script that blocks input.
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Regressions caught early
Daily checks compare each page with its history, so a heavy new script is flagged the day after it ships, not a month later.
Questions and answers
What are Core Web Vitals?
Three measures of real-world page experience: Largest Contentful Paint for loading, Interaction to Next Paint for responsiveness and Cumulative Layout Shift for visual stability. They are also among the page experience signals used in search ranking.
What scores count as good?
An LCP of 2.5 seconds or less, an INP of 200 milliseconds or less and a CLS of 0.1 or less, measured at the 75th percentile of page visits.
What is the difference between field data and lab data?
Field data comes from real visitors on their own devices and networks; lab data is a controlled test on a simulated device. Field data decides whether you pass, lab data helps you find out why.
What happened to First Input Delay?
Interaction to Next Paint replaced First Input Delay as a Core Web Vital in March 2024. INP looks at every interaction on the page, not just the first one.
Why does my page have no field data?
Field data needs enough real visits over the last 28 days. New or low-traffic pages get lab results only until they reach that volume.
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Rank tracker
Daily positions in the US, UK, Germany and France.
Accepted formats: URL · CSV Export formats: CSV · PDF
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AI visibility
See when AI answer engines mention you, cite you or pick a competitor.
Accepted formats: URL · CSV Export formats: CSV · PDF
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Compress image
Lighter files that look exactly the same.
Accepted formats: JPG · PNG · WebP · HEIC Export formats: JPG · PNG · WebP
Try it now
LCP, INP and CLS for every page, from real visitors.
50 free credits a month · no card needed