There is a thread out there which answers this question. A couple times within the past couple years, we have been able to go into the DL site, put a code that someone posted and see exactly what the CSRs see. There was a string of twenty or thirty data fields with codes, and a Wiki translating the codes. DL say the thread and plugged our ability to see the data, but a few months later, it was open again. DL then closed the information off a second time. One of the things was an Experian customer profile score that might have been called "Mosaic" or something. If you search for Experian or Mosaic you could probably find that thread.
Edit:
Here is the thread, although it sounds like the CSRs may now see some additional information.