Element: elementTiming property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The elementTiming property of the Element interface identifies elements for observation in the PerformanceElementTiming API. The elementTiming property reflects the value of the elementtiming attribute.

Value

A string.

Examples

Logging the value of `elementTiming`

In this example, adding the elementtiming attribute to the <img> element sets the image to be observed.

html

<img
  src="image.jpg"
  alt="a nice image"
  elementtiming="big-image"
  id="myImage" />

You can get the string value of the elementtiming HTML attribute by calling el.elementTiming.

const el = document.getElementById("myImage");
console.log(el.elementTiming); // "big-image"

For a more complete example on how to use the Element Timing API, see PerformanceElementTiming.

Specifications

Specification
Element Timing API # dom-element-elementtiming

Browser compatibility

Help improve MDN

Learn how to contribute

This page was last modified on ⁨Apr 10, 2025⁩ by MDN contributors.

View this page on GitHub • Report a problem with this content