Webtrends Analytics 9 Adminstration Guide, November 2012
In addition to placing the tag directly in your web pages, there are other methods for tagging your pages which can make it easier to tag many pages quickly. Alternatively, you can place the tag in a client-side include file or place the tag in a footer template. For more information on these options and tagging best practices, see the Analytics 9 On Demand Implementation Guide on the Webtrends Documentation page.Specifying the First-Party Cookie Data Source
In this step, you edit a profile and specify the first-party cookie data source for that profile.
Session Tracking definitions determine how Webtrends identifies visits and counts unique visitors.