Joan León on Mythryl: “In my audits, the question I hear most after a deploy is "why hasn't…”

In my audits, the question I hear most after a deploy is "why hasn't CrUX moved yet?" The window is always 28 days; daily, weekly and monthly are just cadences over the same data. And p75 resists change by design I explain it with two interactive demos joanleon.dev/en/crux-28-d... #WebPerf #CrUX

joanleon.devThe CrUX 28-day rolling window | Joan LeónHow the CrUX 28-day rolling window actually works, what each source publishes, and why p75 takes so long to move even though the data is only two days old.

11/8/26, 9:49 pm4 reposts10 likes

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