It can be anything! An apex, subdomain, or even a URL.
Results forhostmaster.www.hostmaster.hostmaster.www.exchange2016.perrini.com
www.hostmaster.www.hostmaster.hostmaster.www.exchange2016.perrini.comwww.hostmaster.hostmaster.www.exchange2016.perrini.comhostmaster.hostmaster.www.exchange2016.perrini.comhostmaster.www.exchange2016.perrini.comwww.exchange2016.perrini.comexchange2016.perrini.comperrini.comcom