cloudfour
Longshot feature idea: integrate CrUX API?
Chrome provides an API to query their "CrUX" data (Chrome Rel user experience data). This data shows the CWV scores for real logged in Chrome users.
I'm currently using this API to diagnose some slow FID times on a client site. But, I've got to do everything by hand which is tricky when there are lots of URLs. It could be cool if you could optionally query the CrUX API for CWV scores for all of the URLs on your site. This could be another data point to include in spreadsheets and histograms.
One advantage of this data source is that it's real user data: it's not influenced by the machine hitting the API and represents real user experiences. It can also test for metrics like FID which can't be measured without a real user.
I'm not sure it it makes sense to integrate this into Lighthouse Parade. It may be a longshot. But the idea occurred to me so I thought I'd throw it out there and see what folks think.
@Paul-Hebert this sounds very cool. Can we meet so you can show me how CrUX works sometime?
Sure, I'm just scratching the surface now but I'm happy to share what I find. Feel free to ping me on Slack when you've got some time to meet up