Registro DMARC
v=DMARC1;p=reject;sp=reject;adkim=s;aspf=s

Registro IPv4
host: nexttrack.co
class: IN
ttl: 300
type: A
ip: 23.148.224.238

Servidores DNS Principal (mname) y Secundario (rname)
host: nexttrack.co
class: IN
ttl: 900
type: SOA
mname: ns-538.awsdns-03.net
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400