Registro IPv4
host: edge-dgw-shv-01-mad2.facebook.com
class: IN
ttl: 181
type: A
ip: 157.240.5.11

Información TXT
host: edge-dgw-shv-01-mad2.facebook.com
class: IN
ttl: 7200
type: TXT
txt: v=spf1 a ~all
entries: Array