It can be anything! An apex, subdomain, or even a URL.
Results for*.s.windows.microsoft.com.office.prod.fcc.myshn.eu
www.*.s.windows.microsoft.com.office.prod.fcc.myshn.eus.windows.microsoft.com.office.prod.fcc.myshn.euwindows.microsoft.com.office.prod.fcc.myshn.eumicrosoft.com.office.prod.fcc.myshn.eucom.office.prod.fcc.myshn.euoffice.prod.fcc.myshn.euprod.fcc.myshn.eufcc.myshn.eumyshn.eueu