Registro IPv4
host: whatsapp-cdn-shv-01-mad1.fbcdn.net
class: IN
ttl: 3600
type: A
ip: 31.13.83.51

Información TXT
host: whatsapp-cdn-shv-01-mad1.fbcdn.net
class: IN
ttl: 7200
type: TXT
txt: v=spf1 a ~all
entries: Array