This is the expected behavior. ID service (the calls to dpm.demdex.net)
will only fire on the first page of the first visit in order to get an
ID. Once that ID is stored in the AMCV cookie, there's no need to keep
using up network calls in order to get Experience Cloud IDs. The same is
true for the ID syncs with our common data partners (Liveramp, Google,
The Trade Desk, and so forth). All of those ID syncs only fire on the
first page of the first visit and then they'll do a refresh about once
e...