Registro DMARC
v=spf1 a ~all

Registro IPv4
host: scontent.ftuc4-1.fna.fbcdn.net
class: IN
ttl: 1460
type: A
ip: 181.239.68.17

Información TXT
host: scontent.ftuc4-1.fna.fbcdn.net
class: IN
ttl: 5085
type: TXT
txt: v=spf1 a ~all
entries: Array

Registro IPv6
host: scontent.ftuc4-1.fna.fbcdn.net
class: IN
ttl: 1485
type: AAAA
ipv6: 2800:190:f9::face:b00c:0:a7