Registro IPv4
host: checkipdomain.com
class: IN
ttl: 600
type: A
ip: 37.48.65.153

Servidores DNS Principal (mname) y Secundario (rname)
host: checkipdomain.com
class: IN
ttl: 600
type: SOA
mname: ns1.brainydns.com
rname: admin.checkipdomain.com
serial: 2024092703
refresh: 86400
retry: 10800
expire: 604800
minimum-ttl: 300