Registro IPv4
host: git.io
class: IN
ttl: 90
type: A
ip: 140.82.114.22

Servidores DNS Principal (mname) y Secundario (rname)
host: git.io
class: IN
ttl: 3600
type: SOA
mname: dns1.p09.nsone.net
rname: hostmaster.nsone.net
serial: 1652123882
refresh: 43200
retry: 7200
expire: 1209600
minimum-ttl: 3600