It can be anything! An apex, subdomain, or even a URL.
Results for*.microsoftonline-p.com.chrisshep.sheptest.bt.myshn.eu
www.*.microsoftonline-p.com.chrisshep.sheptest.bt.myshn.eumicrosoftonline-p.com.chrisshep.sheptest.bt.myshn.eucom.chrisshep.sheptest.bt.myshn.euchrisshep.sheptest.bt.myshn.eusheptest.bt.myshn.eubt.myshn.eumyshn.eueu