Registro IPv4
host: national-preservation.com
class: IN
ttl: 3600
type: A
ip: 212.48.70.74

Servidores DNS Principal (mname) y Secundario (rname)
host: national-preservation.com
class: IN
ttl: 3600
type: SOA
mname: ns.mainnameserver.com
rname: hostmaster.mainnameserver.com
serial: 2025033195
refresh: 10800
retry: 600
expire: 2419200
minimum-ttl: 3600

Servidor de Correo
host: national-preservation.com
class: IN
ttl: 3600
type: MX
pri: 10
target: national-preservation.com

Información TXT
host: national-preservation.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 mx a -all
entries: Array