
CrUX vs Lighthouse: Why Real User Data Should Be Your Real Compass
Chrome User Experience Report, or CrUX as most people shorten it, deals with how real users actually interact with your site. That is a completely different thing from a simulated test that passes you solely because you structured your page right or used the latest image compression trick. CrUX measures what people who actually land on your site feel. If you are a developer, you should already be conversant with FCP, LCP, INP, TBT, and CLS. If you are a








