The 202104 dataset is live

[Rick Viscomi]

Hi CrUX users,

This is your monthly announcement that the latest dataset has been published to BigQuery.

The 202104 (April 2021) dataset is now available and it covers 8,423,302 origins. Here's a look at origins' Core Web Vitals performance this month:

• 49.4% of origins had good LCP
• 89.8% of origins had good FID
• 53.8% of origins had good CLS
• 25.8% of origins had good LCP, FID, and CLS

We have two community resources to highlight:

• An in-depth guide to measuring Core Web Vitals by Barry Pollard, everything you need to know about measuring Core Web Vitals with CrUX
• Performance chapter of the 2020 Web Almanac by Karolina Szczur, with lots of analysis into CrUX data

Also take a look at Evolving the CLS metric by Googlers Annie Sullivan and Hongo Song. This post explains the upcoming implementation changes to the CLS metric. We'll notify you on these channels when the CLS changes take effect.

If you have any questions about CrUX, feel free to reach out to us on any of these channels:

• chrome-ux-report on Google Groups
• @ChromeUXReport on Twitter
• questions tagged with chrome-ux-report on StackOverflow
• GoogleChrome/ChromeUXReport on GitHub
  

Cheers,

Rick