Registro IPv4
host: first-study.com
class: IN
ttl: 900
type: A
ip: 178.128.30.175

Servidores DNS Principal (mname) y Secundario (rname)
host: first-study.com
class: IN
ttl: 7200
type: SOA
mname: DNS101.WEB.com
rname: root.register.com
serial: 124041807
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: first-study.com
class: IN
ttl: 3600
type: MX
pri: 0
target: firststudy-com01c.mail.protection.outlook.com

Información TXT
host: first-study.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:spf.protection.outlook.com -all
entries: Array