Registro IPv4
host: passport.org
class: IN
ttl: 137
type: A
ip: 75.2.70.75

Registro IPv4
host: passport.org
class: IN
ttl: 137
type: A
ip: 99.83.190.102

Servidores DNS Principal (mname) y Secundario (rname)
host: passport.org
class: IN
ttl: 737
type: SOA
mname: ns-287.awsdns-35.com
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400