The 202609 dataset is live

[Barry Pollard]

Hi CrUX users,

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

The 202609 (September 2026) dataset is now available and it covers 18,376,044 origins, an increase of 0.4% over last month.

Here's a look at origins' Core Web Vitals performance this month:

• 68.3% of origins (↑ 0.2%) had good LCP

• 81.7% of origins (↑ 0.2%) had good CLS

• 85.4% of origins (↑ 0.1%) had good INP

• 55.9% of origins (↑ 0.5%) had good LCP, CLS and INP

This month, we are adding new experimental variants of the Core Web Vitals (LCP, INP, and CLS) including soft navigation metrics as used by SPA sites. These metrics are available in both the BigQuery data set and CrUX APIs.

We have also published a blog post with details about how these data change the Core Web Vitals metrics for sites that experience a lot of soft navigations, and when we expect to migrate them out of the experimental stage. See Introducing experimental Core Web Vitals metrics to the Chrome UX Report.

With soft navigations included we'd see:

• 72.1% of origins have good LCP (an ↑ 5.6% from when soft navs are not included)

• 85.1% of origins had good CLS (an ↑ 4.2% from when soft navs are not included)

• 87.4% of origins had good INP (an ↑ 2.3% from when soft navs are not included)

• 59.5 % of origins  had good LCP, CLS and INP (an ↑ 6.4% from when soft navs are not included)

The CrUX Vis tool has also been updated allowing you to visualize the impact of the changes on a site by site basis. Use it to check out how your site's Core Web Vitals will change.

Cheers,

Barry