It can be anything! An apex, subdomain, or even a URL.
Results for*.azureedge.net.portal.o365proxy.mvcpoc.myshn.eu
www.*.azureedge.net.portal.o365proxy.mvcpoc.myshn.euazureedge.net.portal.o365proxy.mvcpoc.myshn.eunet.portal.o365proxy.mvcpoc.myshn.euportal.o365proxy.mvcpoc.myshn.euo365proxy.mvcpoc.myshn.eumvcpoc.myshn.eumyshn.eueu