Registro DMARC
v=spf1 a ~all

Registro IPv4
host: scontent.xx.fbcdn.net
class: IN
ttl: 90
type: A
ip: 31.13.83.4

Registro CNAME (Alias)
host: cdn.fbsbx.com
class: IN
ttl: 7200
type: CNAME
target: scontent.xx.fbcdn.net

Información TXT
host: scontent.xx.fbcdn.net
class: IN
ttl: 7200
type: TXT
txt: v=spf1 a ~all
entries: Array

Registro IPv6
host: scontent.xx.fbcdn.net
class: IN
ttl: 90
type: AAAA
ipv6: 2a03:2880:f085:a:face:b00c::3

Registro CNAME (Alias)
host: cdn.fbsbx.com
class: IN
ttl: 7199
type: CNAME
target: scontent.xx.fbcdn.net