Check mobile performance, Core Web Vitals field data when available, lab metrics, and the highest-impact fixes.
Field data and one lab run remain clearly separated.
Field metrics, lab data, and priority fixes will be shown separately.
This test requests mobile PageSpeed data and separates Chrome UX Report field observations from Lighthouse lab measurements. It shows the Core Web Vitals assessment when enough real-user data exists, labels unavailable field data honestly, and ranks concrete performance opportunities without blending unlike sources into one misleading score.
Start with the items that change whether page performance can work at all. Confirm the evidence on the live page or source file, make the smallest safe correction, and run the same check again after publishing.
A warning is not automatically a defect. Compare it with the page purpose, the intended audience, the available first-party evidence, and the rest of the site before changing a template that may affect many URLs.
Treat the output as a decision aid, not a ranking promise. Keep a record of the change, allow the relevant crawler or reporting period to update, and compare the business or search outcome with the baseline.
