It can be anything! An apex, subdomain, or even a URL.
Results forwindows.microsoft.com.office.laboratories-normon.norman.myshn.eu
www.windows.microsoft.com.office.laboratories-normon.norman.myshn.eumicrosoft.com.office.laboratories-normon.norman.myshn.eucom.office.laboratories-normon.norman.myshn.euoffice.laboratories-normon.norman.myshn.eulaboratories-normon.norman.myshn.eunorman.myshn.eumyshn.eueu