This talk reviews the main concepts behind interactivity in the web, including "First Input Delay" that is one of Core Web Vitals metrics, and its related lab-measurable metric: "Total Blocking Time." We also learn how MercadoLibre, the largest ecommerce and payments site in Latin America, optimized interactivity to achieve a 90% reduction in "Max Estimated FID" and a 9% increase in users perceiving "First Input Delay" as fast.
Resources:
First Input Delay → https://goo.gle/3pY5s7P
How Mercado Libre optimized for Web Vitals → https://goo.gle/2V1RYte
Speakers: Demian Renzulli, Cheney Tsai
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event: Chrome Dev Summit 2020; re_ty: Publish; product: Chrome - General; fullname: Demian Renzulli, Cheney Tsai;