Registro IPv4
host: isustainability.com
class: IN
ttl: 7249
type: A
ip: 141.8.225.76

Servidores DNS Principal (mname) y Secundario (rname)
host: isustainability.com
class: IN
ttl: 49
type: SOA
mname: DNS101.REGISTER.com
rname: root.REGISTER.com
serial: 120042815
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600