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.
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: 0 DNT: 1 DNT: null
navigator.doNotTrack; // "0", "1" or null
No specification found
No specification data found for
Check for problems with this page or contribute a missing
spec_url to mdn/browser-compat-data. Also make sure the specification is included in w3c/browser-specs.
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