Registro IPv4
host: signcore.co.kr
class: IN
ttl: 21600
type: A
ip: 59.25.184.75

Servidores DNS Principal (mname) y Secundario (rname)
host: signcore.co.kr
class: IN
ttl: 43200
type: SOA
mname: ns1.nanuminet.com
rname: root.signcore.co.kr
serial: 2018082103
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 86400

Información TXT
host: signcore.co.kr
class: IN
ttl: 21600
type: TXT
txt: v=spf1 ip4:59.25.184.75 ~all
entries: Array