What is PLS by Chrome version
PLS by Chrome version breaks down your Perceived Load Speed (PLS) based on the version of Chrome used by your real users. This helps you detect whether newer (or older) browser versions are influencing how fast users feel your site is loading.
PLS is a user-centric performance metric developed by Uxify that measures when a page feels visually complete. Unlike technical metrics, PLS reflects the true user perception of load — and that perception can be affected by how well the browser handles layout, rendering, or third-party scripts.
Healthy PLS by Chrome version sample
Should you worry
In a healthy setup, PLS values remain consistent across all major Chrome versions your users are on. Minor differences are expected due to rendering engine changes, but big performance drops in newer versions may hint at emerging compatibility issues or changes in how content is prioritized for rendering.
Watch out for consistently slower PLS on the latest Chrome versions — it may suggest your site hasn't adapted to browser updates, which can subtly shift performance behavior.
Unhealthy PLS by Chrome version sample
When PLS is significantly worse on specific Chrome versions — especially those most used by your visitors — it indicates a clear optimization gap. It may be caused by newer browser policies (like lazy loading, preloading behavior, or scheduling changes) or regressions introduced by recent site changes that only manifest in certain versions.
Resolving unhealthy PLS by Chrome version
Go-to action plan to resolve an unhealthy PLS by Chrome version:
Ask Uxi to analyze your PLS by Chrome version 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 Chrome version. If yes, this is where the resolution focus should be.
Use an automated optimization tool like Navigation AI to improve your PLS by Chrome version.
Once you’ve improved PLS, 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.