It can be anything! An apex, subdomain, or even a URL.
Results forhostmaster.hostmaster.hostmaster.notexistssmtp.ffffffffffff.kennedi.org
www.hostmaster.hostmaster.hostmaster.notexistssmtp.ffffffffffff.kennedi.orghostmaster.hostmaster.notexistssmtp.ffffffffffff.kennedi.orghostmaster.notexistssmtp.ffffffffffff.kennedi.orgnotexistssmtp.ffffffffffff.kennedi.orgffffffffffff.kennedi.orgkennedi.orgorg