The ElementTiming API will allow developers to know when certain important text elements are first displayed on the screen. It will also enable analytics providers to measure the display time of text that takes up a large fraction of the viewport when they first show up.
Motivation
Developers should be informed of the time at which key elements of their website are first rendered. Usually this means images and/or text. Text is important for news websites, articles of online encyclopedias, email providers, etc. First contentful paint is insufficient because it is triggered with almost any element.
Documentation
Specification
Status in Chromium
Enabled by default (tracking bug) in:
- Chrome for desktop release 77
- Chrome for Android release 77
Consensus & Standardization
After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.
- No signal
- No signal
- No signal
- No signals
Owners
Last updated on 2021-03-12