It can be anything! An apex, subdomain, or even a URL.
Results forwww.hostmaster.www.hostmaster.hostmaster.api.milsnuncios.com
hostmaster.www.hostmaster.hostmaster.api.milsnuncios.comwww.hostmaster.hostmaster.api.milsnuncios.comhostmaster.hostmaster.api.milsnuncios.comhostmaster.api.milsnuncios.comapi.milsnuncios.commilsnuncios.comcom