It can be anything! An apex, subdomain, or even a URL.
Results for*.ads2.msads.net.office.test.proxyqa.myshn.eu
www.*.ads2.msads.net.office.test.proxyqa.myshn.euads2.msads.net.office.test.proxyqa.myshn.eumsads.net.office.test.proxyqa.myshn.eunet.office.test.proxyqa.myshn.euoffice.test.proxyqa.myshn.eutest.proxyqa.myshn.euproxyqa.myshn.eumyshn.eueu