Do Not Track

Definition
Do Not Track (DNT) allows an Internet user to opt out of web tracking technologies through their browser. A DNT-enabled browser adds a header to messages sent to web servers that request that the server not track the user’s behavior. DNT is currently a voluntary system (like robot.txt) and has not been implemented in all browsers or universally adopted. Blocking certain tracking methods will also block some behavioral-based advertisements for users that choose to opt-out.