Registro IPv4
host: blogspot.l.googleusercontent.com
class: IN
ttl: 300
type: A
ip: 172.217.21.1

host: how-to-startup.blogspot.com
class: IN
ttl: 300
type: CNAME
target: blogspot.l.googleusercontent.com

Registro IPv6
host: blogspot.l.googleusercontent.com
class: IN
ttl: 184
type: AAAA
ipv6: 2a00:1450:4003:80d::2001