It can be anything! An apex, subdomain, or even a URL.
Results forwww.hostmaster.hostmaster.www.hostmaster.www.hostmaster.www.dev.envy.biz
hostmaster.hostmaster.www.hostmaster.www.hostmaster.www.dev.envy.bizhostmaster.www.hostmaster.www.hostmaster.www.dev.envy.bizwww.hostmaster.www.hostmaster.www.dev.envy.bizhostmaster.www.hostmaster.www.dev.envy.bizwww.hostmaster.www.dev.envy.bizhostmaster.www.dev.envy.bizwww.dev.envy.bizdev.envy.bizenvy.bizbiz