Registro IPv4
host: letter4.com
class: IN
ttl: 300
type: A
ip: 104.21.53.28

Registro IPv4
host: letter4.com
class: IN
ttl: 300
type: A
ip: 172.67.208.14

Servidores DNS Principal (mname) y Secundario (rname)
host: letter4.com
class: IN
ttl: 1800
type: SOA
mname: ashley.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2354746351
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: letter4.com
class: IN
ttl: 300
type: MX
pri: 20
target: mx2.emailsrvr.com

Servidor de Correo
host: letter4.com
class: IN
ttl: 300
type: MX
pri: 10
target: mx1.emailsrvr.com

Información TXT
host: letter4.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:emailsrvr.com ~all
entries: Array

Registro IPv6
host: letter4.com
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3032::6815:351c

Registro IPv6
host: letter4.com
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3030::ac43:d00e