Online advertisers rely on tracking data to target their advertising and marketing campaigns. This tracking data usually consists of cookies, browsing history, location information, and other information that is often shared with users.
Just as there is a Do Not Call registry for telemarketers, users can ask Web sites to hide their data from marketers, advertisers, and other intermediaries.
Do Not Track is a privacy setting available in most Web browsers, such as Microsoft Edge. This setting is an HTTP header field that is sent to websites by the web browser. The DNT header tells servers that the user reflects one of three value commands: