Do Not Track (DNT) is a setting in web browsers that allows users to opt out of being tracked by websites, advertisers, and third-party companies.
When DNT is enabled, a special header is sent with each web request indicating that the user does not want to be tracked.
Websites and advertisers are supposed to respect this setting and not collect any data about the user’s browsing activities.
However, DNT is not a standard and it’s not enforceable, so many companies do not honor DNT requests. Also, DNT is not always enabled by default and the user must enable it manually.