DNT header
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.
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.
Browser compatibility
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DNT
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Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- Non-standard. Check cross-browser support before using.
- Deprecated. Not for use in new websites.