W3C

First Public Working Drafts: Event Timing API, Largest Contentful Paint

The Web Performance Working Group has published the following two First Public Working Drafts:

  • Event Timing API: This document defines an API that provides web page authors with insights into the latency of certain events triggered by user interactions.
  • Largest Contentful Paint: This document defines an API that enables monitoring the largest paint an element triggered on screen.