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We just launched experimental ad metrics in the Chrome User Experience Report (CrUX): - Ad Count - Ad Density - Ad Weight: Network - Ad Weight: CPU These metrics are a set of ad-related measurements that provide transparency into sites' ad experiences. developer.chrome.com/blog/crux-ad... 1/8 🧵

Ad Count is the average number of ads in the viewport. Ad Density is the average % of the viewport area occupied by ads. Ad Weight: Network is the total network KB fetched by ad scripts and frames. Ad Weight: CPU is milliseconds of CPU time used by ads frames. developer.chrome.com/docs/ads 2/8

We think these are some of the key measures of ad experiences and are excited to share this data. It's difficult to measure these types of metrics given technical constrains on the web platform, so CrUX is in a unique position to publish this data. 3/8

The metrics are available in the CrUX API and the CrUX History API today and you can view these metrics for sites with third-party ads in CrUX Vis: cruxvis.withgoogle.com We're working on adding them to CrUX BigQuery dataset. 4/8

I couldn't immediately see a way to view these on mobile, but switching to desktop mode does give me the side navigation.