Navigator.doNotTrack
Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
The Navigator.doNotTrack property returns the user's Do Not Track setting, which indicates whether the user is requesting web sites and advertisers to not track them.
The value of the property reflects that of the DNT HTTP header, i.e. values of "1", "0", or "unspecified".
Example
console.log(navigator.doNotTrack); // prints "1" if DNT is enabled; "0" if the user opted-in for tracking; otherwise this is "unspecified"
Specifications
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
doNotTrack |
23 |
17
Before version 17, Edge implemented
window.doNotTrack. |
9
Before Firefox 32,
navigator.doNotTrack would report values of yes and no rather than 1 and 0. |
9-11
For IE11 and subsequent versions, use
window.doNotTrack
|
12 |
5.1-7 |
≤37 |
Yes |
9
Before Firefox 32,
navigator.doNotTrack would report values of yes and no rather than 1 and 0. |
? |
5-7 |
Yes |
See also
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https://developer.mozilla.org/en-US/docs/Web/API/Navigator/doNotTrack