DNT
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 non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
Note: The DNT (Do Not Track) specification has been discontinued. See Navigator.doNotTrack
for more information.
The 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 header name | 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
BCD tables only load in the browser