What is CLS by weekday
CLS by weekday measures visual stability for each day of the week, showing the Cumulative Layout Shift (CLS) during user sessions. This helps you spot if layout instability increases on certain days — often due to dynamic content changes, ad schedule shifts, or late asset loads.
CLS by weekday sample
In a healthy view, CLS stays low across all days, meaning that campaigns, new banners, or content swaps aren’t introducing instability mid-week or on weekends.
Unhealthy CLS by weekday
If certain weekdays see higher CLS, it can be tied to ad rotations (often launched Mondays), seasonal banner swaps, or new product content added without reserved layout space.
Resolving unhealthy CLS by weekday
Go-to action plan to resolve an unhealthy CLS by weekday:
Ask Uxi to analyze your CLS by weekday values and suggest improvements
Use Filters to drill into specific templates or device types for problem days.
Simulate CLS of the suspected breakdown to see if fixing it will resolve the CLS by weekday. If yes, this is where the resolution focus should be.
Use an automated CLS optimization tool like Navigation AI to improve your CLS by weekday values
Once you’ve improved CLS, set an alert to be the first to know if it starts worsening again.
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