Registro IPv4
host: sfclass.tw
class: IN
ttl: 90
type: A
ip: 18.172.213.3

Registro IPv4
host: sfclass.tw
class: IN
ttl: 90
type: A
ip: 18.172.213.56

Registro IPv4
host: sfclass.tw
class: IN
ttl: 90
type: A
ip: 18.172.213.22

Registro IPv4
host: sfclass.tw
class: IN
ttl: 90
type: A
ip: 18.172.213.106

Servidores DNS Principal (mname) y Secundario (rname)
host: sfclass.tw
class: IN
ttl: 900
type: SOA
mname: ns-1673.awsdns-17.co.uk
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: sfclass.tw
class: IN
ttl: 3600
type: MX
pri: 20
target: one-relay.mxroute.com

Servidor de Correo
host: sfclass.tw
class: IN
ttl: 3600
type: MX
pri: 10
target: one.mxroute.com

Información TXT
host: sfclass.tw
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:mxroute.com -all
entries: Array