The Chrome User Experience report (CrUX) provides data at two levels of specificity: individual pages, and for the whole origin (including the subdomain, e.g. www.speedsense.com). 

Google, when considering the Core Web Vitals metrics, uses the values at the 75th percentile as the value for the origin. Sensai uses this data as one input to our system.

Sometimes, there are apparent inconsistencies in your data: your site might have a poor score on one metric at the website level, even though most of your page types score better.  In those circumstances, there are a few possible reasons for the discrepancy:

  • Your site might have a page or page type that dominates your page views.  If your home page gets 90% of your page views for the entire site, your other pages have very little influence over your site-level scores.
  • Your site might have a long tail of pages.  Especially if your urls are specific to particular users, there can be pages which have little to no traffic individually, but which add up to a significant portion of your total page views.  For privacy reasons, CrUX does not provide url-level data for pages with very few views - but those page views may still be represented in the aggregate for the whole site.
  • You might have especially well- or poorly-performing pages which are not indexed.  The CrUX dataset does not provide data for URLs which have noindex set.  This usually includes checkout, account, or other private pages, which may receive a significant amount of traffic.