It can be anything! An apex, subdomain, or even a URL.
Results for*.windows.net.office.rp-o365.agircarrco.myshn.eu
www.*.windows.net.office.rp-o365.agircarrco.myshn.euwindows.net.office.rp-o365.agircarrco.myshn.eunet.office.rp-o365.agircarrco.myshn.euoffice.rp-o365.agircarrco.myshn.eurp-o365.agircarrco.myshn.euagircarrco.myshn.eumyshn.eueu