Registro IPv4
host: classroom.google.com
class: IN
ttl: 126
type: A
ip: 172.217.168.174

Servidor de Correo
host: classroom.google.com
class: IN
ttl: 426
type: MX
pri: 30
target: alt3.gmr-smtp-in.l.google.com

Servidor de Correo
host: classroom.google.com
class: IN
ttl: 426
type: MX
pri: 20
target: alt2.gmr-smtp-in.l.google.com

Servidor de Correo
host: classroom.google.com
class: IN
ttl: 426
type: MX
pri: 5
target: gmr-smtp-in.l.google.com

Servidor de Correo
host: classroom.google.com
class: IN
ttl: 426
type: MX
pri: 40
target: alt4.gmr-smtp-in.l.google.com

Servidor de Correo
host: classroom.google.com
class: IN
ttl: 426
type: MX
pri: 10
target: alt1.gmr-smtp-in.l.google.com

Información TXT
host: classroom.google.com
class: IN
ttl: 426
type: TXT
txt: v=spf1 redirect=_spf.google.com
entries: Array

Registro IPv6
host: classroom.google.com
class: IN
ttl: 126
type: AAAA
ipv6: 2a00:1450:4003:80a::200e