VDM Visitor Numbers


Webtrends Visitor Data Mart


If the dcs.gif request does not include a value for WT.co_f or WT.vt_id, how does VDM determine visitor numbers.


In the event that there is no co_f or vt_id value. There is no ?backup? visitor generated, but we also don?t throw the data out.

There is an unknown visitor and unknown visit (ID 1000000008000000001) that will be associated with any effects that do not have their own visitor identification.

It’s not possible to separate out the trafficof this visitor to individuals.