What the metrics mean, which problems matter, and how to fix the experience behind the score.
Focus on loading the main content quickly, responding to input without delay, and preventing unexpected layout movement. Use field data when available because real devices and networks matter more than a perfect lab run.
Measure the page people use
A homepage score cannot represent a slow product page or an overloaded article template. Sample the routes that carry real traffic and revenue.
Fix causes, not badges
Large media, late fonts, third-party scripts, and heavy client code are common causes. The right fix changes how the page is built, not just how a test is configured.
Set a performance budget
Budgets turn performance into a design constraint. Agree on image weight, script cost, and interaction targets before the page becomes difficult to unwind.
Questions that follow.
They are part of page experience signals, but relevance and useful content remain essential. Treat performance as user experience, not a ranking trick.
Lab tests use controlled conditions. Field data reflects the range of real devices, networks, locations, and user behavior.
Aim for the good threshold at the 75th percentile of real visits, then keep monitoring as content and scripts change.
