Registro IPv4
host: googlehosted.l.googleusercontent.com
class: IN
ttl: 200
type: A
ip: 172.217.168.161

Registro CNAME (Alias)
host: mail-attachment.googleusercontent.com
class: IN
ttl: 300
type: CNAME
target: googlehosted.l.googleusercontent.com

Registro IPv6
host: googlehosted.l.googleusercontent.com
class: IN
ttl: 201
type: AAAA
ipv6: 2a00:1450:4003:80a::2001

Registro CNAME (Alias)
host: mail-attachment.googleusercontent.com
class: IN
ttl: 300
type: CNAME
target: googlehosted.l.googleusercontent.com