In December 2010 America’s Federal Trade Commission (FTC) proposed adding a “do not track” (DNT) option to Internet browsers, so that users could tell advertisers that they did not want to be followed.

2010年12月，美国美国联邦贸易委员会(FTC)提议在在互联网浏览器中添加“不农踪””(DN刀选项这样用户可以告诉广告商他们不想被跟踪