Hi CrUX users,
This is your monthly announcement that the latest dataset has been published to BigQuery.
The 202512 (December 2025) dataset is now available and it covers 17,288,655 origins, a decrease of 6.5% over last month.
Here's a look at origins' Core Web Vitals performance this month:
67.6% of origins (↓ 0.5%) had good LCP
80.3% of origins (↑ 0.1%) had good CLS
85.6% of origins (↓ 0.6%) had good INP
54.4% of origins (↓ 0.4%) had good LCP, CLS and INP
We usually see a high variability with the December data—we have seen the same every year since CrUX launched. Given the high variability it's difficult to attribute any of these moves to any particular causes and we expect most numbers to revert back next month (again as they mostly have in previous years). Therefore, we won't try to explain these movements this month.
Cheers,
Barry