A tracking domain is the "long domain" owned and controlled by you, for which we will report all click traffic from all Bitly users. All click traffic on your tracking domain, including clicks on links that were created by other Bitly users, will appear in your dashboard.
For example, the tracking domain for The New York Times is "nytimes.com", and the tracking domain for Tech Crunch is "techcrunch.com".
Keep in mind that a tracking domain cannot be the same as your custom short domain.
You must have FTP access (File Transfer Protocol) to your tracking domain. Some sites, for example, wordpress.com, allow you to purchase a domain but they do not give FTP access to users.
In order to set up your tracking domains, please send a list of domains to support@bit.ly including your account name and Bitly username or contact your Account Manager.