Servidores DNS Principal (mname) y Secundario (rname)
host: realxcart.com
class: IN
ttl: 3601
type: SOA
mname: dns1.registrar-servers.com
rname: hostmaster.registrar-servers.com
serial: 1764083247
refresh: 43200
retry: 3600
expire: 604800
minimum-ttl: 3601

Información TXT
host: realxcart.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 ip4:216.75.63.28 -all
entries: Array