It can be anything! An apex, subdomain, or even a URL.
Results forwww.edge.skype.com.office.eucouncilo365proxy.eucouncileupoc.myshn.eu
edge.skype.com.office.eucouncilo365proxy.eucouncileupoc.myshn.euskype.com.office.eucouncilo365proxy.eucouncileupoc.myshn.eucom.office.eucouncilo365proxy.eucouncileupoc.myshn.euoffice.eucouncilo365proxy.eucouncileupoc.myshn.eueucouncilo365proxy.eucouncileupoc.myshn.eueucouncileupoc.myshn.eumyshn.eueu