What is CLS by Europe
CLS by Europe lists Cumulative Layout Shift (CLS) broken down by European country. Each row displays the country name, a color-coded status, and the CLS value at the chosen percentile. This reveals where users are seeing stable pages vs. frustrating layout jumps.
Cumulative Layout Shift (CLS) measures unexpected layout movement while the page is visible.
CLS by Europe sample
A healthy view shows green countries with stable layouts across Europe.
Unhealthy CLS by Europe
Yellow/red countries indicate that ads, late-loading fonts, or localized scripts are shifting content unexpectedly in those regions.
Resolving unhealthy CLS by Europe
Go-to action plan to resolve an unhealthy CLS by Europe:
Ask Uxi to analyze your CLS by Europe values and suggest improvements
Use Filters to check if mobile users in specific countries are more affected.
Simulate CLS of the suspected breakdown to see if fixing it will resolve the CLS by Europe. If yes, this is where the resolution focus should be.
Use an automated CLS optimization tool like Navigation AI to improve your CLS by Europe values
Once you’ve improved CLS, set an alert to be the first to know if it starts worsening again.
Try it yourself
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