Registro IPv4
host: first-i.co.jp
class: IN
ttl: 3600
type: A
ip: 219.109.140.21

Servidores DNS Principal (mname) y Secundario (rname)
host: first-i.co.jp
class: IN
ttl: 3600
type: SOA
mname: master.dns.ne.jp
rname: tech.sakura.ad.jp
serial: 2022090602
refresh: 3600
retry: 900
expire: 3600000
minimum-ttl: 3600

Servidor de Correo
host: first-i.co.jp
class: IN
ttl: 3600
type: MX
pri: 10
target: mail1.first-i.co.jp

Información TXT
host: first-i.co.jp
class: IN
ttl: 3600
type: TXT
txt: v=spf1 +a +mx +ip4:219.109.140.21 ~all
entries: Array