Because Notetracks collects browsing and persistent identifier data (only for analytic and internal purposes), selecting any "Do Not Track" option provided by a mobile browser will not have any effect on the collection of analytics information or the collection of a persistent identifier.<br> <br>Notes on Opting-Out of Behavioral Advertising<br> <br>Some opt-out features are cookie-based, resulting in an "opt-out" cookie being placed on a computer or other device indicating that Behavioral Advertising from certain companies is not of interest.