Registro IPv4
host: first1.us
class: IN
ttl: 300
type: A
ip: 172.67.191.46

Registro IPv4
host: first1.us
class: IN
ttl: 300
type: A
ip: 104.21.49.155

Servidores DNS Principal (mname) y Secundario (rname)
host: first1.us
class: IN
ttl: 1800
type: SOA
mname: drake.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2412386687
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Registro IPv6
host: first1.us
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3037::ac43:bf2e

Registro IPv6
host: first1.us
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3032::6815:319b