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|
DNT: 0 DNT: 1 DNT: null
- The user prefers to allow tracking on the target site.
- The user prefers not to be tracked on the target site.
- The user has not specified a preference about tracking.
navigator.doNotTrack; // "0" or "1"
|Tracking Preference Expression (DNT)
The definition of 'DNT Header Field for HTTP Requests' in that specification.
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