It can be anything! An apex, subdomain, or even a URL.
Results forhostmaster.www.hostmaster.hostmaster.mail.link.esio.com
www.hostmaster.www.hostmaster.hostmaster.mail.link.esio.comwww.hostmaster.hostmaster.mail.link.esio.comhostmaster.hostmaster.mail.link.esio.comhostmaster.mail.link.esio.commail.link.esio.comlink.esio.comesio.comcom