What is PLS by browser timezone
PLS by browser timezone shows Perceived Load Speed (PLS) values segmented by your users’ local browser timezones. This lens helps you uncover whether certain regions or local time patterns correlate with slower perceived load performance.
The timezone is determined from the user’s device settings and can give an indirect but useful signal about their geographic region and behavior patterns — for example, users in certain timezones might access your site during traffic spikes or from slower networks.
Healthy PLS by browser timezone sample
Should you worry
A healthy distribution means there’s no specific timezone standing out with significantly slower PLS values. If one or more timezones show consistently poor perceived load performance, it could point to issues like:
Time-based traffic surges overloading your server
Users in certain regions having lower-end devices or weaker connections
Time-sensitive content or campaign launches affecting load complexity in those zones
You should pay special attention if a slow timezone corresponds to a key audience for your business.
Unhealthy PLS by browser timezone sample
An unhealthy pattern might show a cluster of slower PLS values in specific timezones, especially during peak usage hours. For example, if PLS is poor in UTC+5 and UTC+6 during local business hours, it may indicate performance bottlenecks in regional delivery or server response, directly impacting user perception.
Resolving unhealthy PLS by browser timezone
Go-to action plan to resolve an unhealthy PLS by browser timezone:
Ask Uxi to analyze your PLS by browser timezone and suggest improvements.
Use Filters to combine timezone insights with other lenses like device type or connection speed for deeper root-cause analysis.
Simulate LCP of the suspected lens to see if fixing it will resolve the PLS by browser timezone. If yes, this is where the resolution focus should be.
Use an automated optimization tool like Navigation AI to improve your PLS by browser timezone.
Once you’ve improved PLS, set an alert to be the first to know if it starts worsening again.
Try it yourself
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