Registro IPv4
host: cro.pl
class: IN
ttl: 3600
type: A
ip: 188.165.203.207

Servidores DNS Principal (mname) y Secundario (rname)
host: cro.pl
class: IN
ttl: 3600
type: SOA
mname: ns1.cro.pl
rname: hostmaster.cro.pl
serial: 2017082801
refresh: 7200
retry: 540
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: cro.pl
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.cro.pl

Información TXT
host: cro.pl
class: IN
ttl: 3600
type: TXT
txt: v=spf1 mx a ~all
entries: Array