An In-Depth Guide To Measuring Core Web Vitals
Smashing Magazine
APRIL 19, 2021
Total Blocking Time (TBT) is a good proxy for FID when using a testing tool without any direct user interaction, but also keep an eye on Time to Interactive (TTI) when looking at FID. ga('send', 'event', { eventCategory: 'Web Vitals', eventAction: name, // The `id` value will be unique to the current page load.
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