HTMLAnchorElement: attributionSourceId property

Limited availability

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

See full compatibility

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

The attributionSourceId property of the HTMLAnchorElement interface gets and sets the attributionsourceid HTML attribute on an <a> element.

The attributionSourceId is used as part of the Private Click Measurement specification to identify the content that was clicked when following a link to another site.

Value

A number. Valid values for private click measurement are between 0 and 255. The default value is 0. Values outside this range will not cause an error when setting the property, but will be ignored by the browser for attribution purposes.

Examples

Setting an attribution source ID on a link

html

<a
  id="ad-link"
  href="https://example.com"
  attributiondestination="https://example.com">
  Click to visit our shop
</a>

const adLink = document.getElementById("ad-link");
adLink.attributionSourceId = 17;

console.log(adLink.attributionSourceId); // 17

Specifications

Specification
Private Click Measurement # dom-htmlanchorelement-attributionsourceid

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`attributionSourceId` Experimental	Chrome – No support Chrome footnote No support	Edge – No support Edge footnote No support	Firefox – No support Firefox footnote No support	Opera – No support Opera footnote No support	Safari – No support Safari 14.1 – 15.3 (Release date: 2021-04-26) altname altname Alternate name: attributionsourceid Safari – Full support Safari 15.4 (Release date: 2022-03-14) footnote Full support	Chrome Android – No support Chrome Android footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – No support Opera Android footnote No support	Safari on iOS – No support Safari on iOS 14.5 – 15.3 (Release date: 2021-04-26) altname altname Alternate name: attributionsourceid Safari on iOS – Full support Safari on iOS 15.4 (Release date: 2022-03-14) footnote Full support	Samsung Internet – No support Samsung Internet footnote No support	WebView Android – No support WebView Android footnote No support	WebView on iOS – No support WebView on iOS 14.5 – 15.3 (Release date: 2021-04-26) altname altname Alternate name: attributionsourceid WebView on iOS – Full support WebView on iOS 15.4 (Release date: 2022-03-14) footnote Full support

Tip: you can click/tap on a cell for more information.

Full support: Full support
No support: No support
: Experimental. Expect behavior to change in the future.
: Uses a non-standard name
: Has more compatibility info.