Registro IPv4
host: xx-fbcdn-shv-01-lis1.fbcdn.net
class: IN
ttl: 1679
type: A
ip: 157.240.212.14

Información TXT
host: xx-fbcdn-shv-01-lis1.fbcdn.net
class: IN
ttl: 7200
type: TXT
txt: v=spf1 a ~all
entries: Array