What is PLS by screen resolution
PLS by screen resolution breaks down your Perceived Load Speed (PLS) across different screen sizes and resolutions. This view helps you understand how the perceived speed of your pages changes depending on the user’s device viewport.
PLS is a real-user metric developed by Uxify that measures when a page feels fully loaded — not just technically, but visually and experientially. Since different screen resolutions may render more (or less) content above the fold, they can directly impact how fast users perceive the load.
Healthy PLS by screen resolution sample
Should you worry
A healthy PLS by screen resolution breakdown shows consistent performance across a variety of resolutions. Naturally, higher resolutions (like those on large desktop monitors or tablets) might take slightly longer, but major spikes in PLS should be a red flag. A common culprit? Layouts that load unnecessary content or render blocking assets for screen sizes where it’s not even visible.
Unhealthy PLS by screen resolution sample
Unhealthy distributions here often surface when one or more resolutions — usually the common ones like 1920×1080 or 1366×768 — experience longer perceived load times. That could mean above-the-fold content is heavier, slow to render, or blocked by unnecessary third-party scripts. If these resolutions represent a large portion of your user base, slow PLS can silently hurt engagement.
Resolving unhealthy PLS by screen resolution
Go-to action plan to resolve an unhealthy PLS by screen resolution:
Ask Uxi to analyze your PLS by screen resolution and suggest improvements.
Use Filters to identify which pages cause the most slowdown and compare them to other PLS breakdowns.
Simulate LCP of the suspected breakdown to see if fixing it will resolve the PLS by screen resolution. If yes, this is where the resolution focus should be.
Use an automated optimization tool like Navigation AI to improve your PLS by screen resolution.
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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