Performance: Core Web Vitals and pages

Core Web Vitals

Performance → Web Vitals (/web-experience/performance/vitals) shows LCP, INP and CLS, each rated Good / Needs Improvement / Poor, sliced by page, device and country. This is your Google-aligned field-data view.

Page performance

Performance → Pages (/web-experience/performance/pages) ranks pages by load time and surfaces slow resources and route timings — so you know which page and what on it to fix.

Cookbook: fix a poor LCP

Open Web Vitals; filter to Mobile and sort by worst LCP.
Identify the offending page; open it in Pages to see the slow resource (often a hero image or a blocking script).
Fix it (preload/compress/defer), deploy, and watch the rating move from Needs Improvement to Good over the next window.

Pair this with a synthetic web test to catch a regression before release; RUM confirms the real-world impact after.