Transforms are functions that take as arguments a reference to the DCS object and the tracking object. They are used to modify the data collected or to change the behavior of the tracking code. In either case, they are called just before the beacon request is generated.
Selectors are a way to unobtrusively attach multiTrack calls to DOM elements. This uses the browser's CSS Selectors engine to find the elements.
Dual Tagging (Website only)
You may find it useful to send data to two DCSIDs, or to two domains (with the same DCSID or different DCSIDs). In the example, the two domains are a local SmartSource Data Collector sdc.my-domain.com, and the Webtrends server statse.webtrendslive.com.
By default, Webtrends tracks visitors across the primary domain and all sub-domains. This is done by setting a first party cookie on your primary domain with the leading dot, which allows sub-domains to also read this cookie.