What is LCP by browser timezone
LCP by browser timezone shows the Largest Contentful Paint (LCP) across users grouped by the timezone set in their browser - which typically reflects their geographic location.
This lens helps you uncover regional performance differences even if you don’t have detailed geo segmentation. It's particularly useful for identifying server latency, CDN misalignment, or content delivery issues tied to certain parts of the world.
Only timezones with actual traffic during the selected period will appear in the list.
🕒 This data reflects the user’s local system time zone, not IP-based geolocation — making it a useful, privacy-safe proxy for location-based performance insights.
LCP is the most popular vital from the Core Web Vitals and represents the loading time of the largest element on the page.
Healthy LCP by browser timezone sample
Should you worry
A healthy chart will show consistent green bars across most or all browser timezones. That means your site is delivering a fast experience globally, with no major LCP outliers.
Some slight variation is normal - especially if your audience spans very different regions - but as long as there’s no significant yellow or red, your infrastructure is holding up well under geographic spread.
A healthy profile often indicates:
CDN and edge locations are properly configured.
Static assets and LCP elements are cached effectively.
No region-specific content is delaying render.
Unhealthy LCP by browser timezone sample
When one or more timezones consistently show slower LCP, it can be a red flag for geographic delivery issues. Some common causes include:
Missing or underperforming CDN edge coverage in a region.
Server location too distant from specific user clusters.
Localized third-party content (e.g. ads or translations) being slow to load.
Resolving unhealthy LCP by browser timezone
Go-to action plan to resolve an unhealthy LCP by browser timezone:
Ask Uxi to analyze your LCP by browser timezone values and suggest improvements.
Use Filters to narrow in on those regions and cross-reference with other lenses (like server distance or third-party impact).
Simulate LCP of the suspected lens to see if fixing it will resolve the slow LCP by browser timezone. If yes, this is where the resolution focus should be.
Use an automated LCP optimization tool like Navigation AI to improve your LCP by browser timezone values.
Once you’ve improved LCP, set an alert to be the first to know if it starts worsening again.
Try it yourself
Discover how your website performs with real user data.