Registro IPv4
host: i-courses.org
class: IN
ttl: 600
type: A
ip: 185.53.177.51

Servidores DNS Principal (mname) y Secundario (rname)
host: i-courses.org
class: IN
ttl: 790
type: SOA
mname: ns1.parkingcrew.net
rname: hostmaster.i-courses.org
serial: 1732744000
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 86400

Servidor de Correo
host: i-courses.org
class: IN
ttl: 3600
type: MX
pri: 5
target: mail.h-email.net

Servidor de Correo
host: i-courses.org
class: IN
ttl: 3600
type: MX
pri: 1
target: alltheemails.com

Información TXT
host: i-courses.org
class: IN
ttl: 3600
type: TXT
txt: v=spf1 ip6:fd1b:212c:a5f9::/48 -all
entries: Array