DNT

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.

Header type Request header
Forbidden header name yes

Syntax

DNT: 0
DNT: 1

Directives

0
The user prefers to allow tracking on the target site.
1
The user prefers not to be tracked on the target site.

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" or "1"

Specifications

Specification Status Comment
Tracking Preference Expression (DNT)
The definition of 'DNT Header Field for HTTP Requests' in that specification.
Working Draft Initial definition.

Browser compatibility

Feature Chrome Edge Firefox Internet Explorer Opera Safari Servo
DNT23(Yes)49(Yes)6(Yes)
Feature Android Chrome for Android Edge Mobile Firefox for Android IE Mobile Opera Mobile Safari Mobile
DNT(Yes)(Yes)(Yes)(Yes)(Yes)(Yes)(Yes)

See also

Document Tags and Contributors

 Contributors to this page: gavdaddy27, fscholz
 Last updated by: gavdaddy27,