Registro DMARC
v=spf1 a ~all

Registro IPv4
host: scontent.fmxl1-1.fna.fbcdn.net
class: IN
ttl: 3600
type: A
ip: 189.233.193.20

Información TXT
host: scontent.fmxl1-1.fna.fbcdn.net
class: IN
ttl: 7200
type: TXT
txt: v=spf1 a ~all
entries: Array

Registro IPv6
host: scontent.fmxl1-1.fna.fbcdn.net
class: IN
ttl: 2693
type: AAAA
ipv6: 2806:1008:cbff:fc:face:b00c::a7