dcsimg

VDM Visitor Numbers

Products

Webtrends Visitor Data Mart

Cause

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

Resolution

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.