DNT header
Deprecated
Avoid using this feature in new projects. This feature may be a candidate for removal from web standards or browsers.
Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.
Note:
The DNT (Do Not Track) specification has been discontinued. See Navigator.doNotTrack for more information.
The HTTP DNT (Do Not Track) request header indicates the user's tracking preference.
It lets users indicate whether they would prefer privacy rather than personalized content.
DNT is deprecated in favor of Global Privacy Control, which is communicated to servers using the Sec-GPC header, and accessible to clients from navigator.globalPrivacyControl.
| Header type | Request header |
|---|---|
| Forbidden request header | Yes |
Syntax
DNT: 0
DNT: 1
DNT: null
Directives
Examples
Reading Do Not Track status from JavaScript
The user's DNT preference can also be read from JavaScript using the
Navigator.doNotTrack property:
navigator.doNotTrack; // "0", "1" or null
Specifications
Part of the discontinued Tracking Preference Expression (DNT) specification.