Registro IPv4
host: 21uscity.com
class: IN
ttl: 300
type: A
ip: 104.21.94.197

Registro IPv4
host: 21uscity.com
class: IN
ttl: 300
type: A
ip: 172.67.168.164

Servidores DNS Principal (mname) y Secundario (rname)
host: 21uscity.com
class: IN
ttl: 1800
type: SOA
mname: newt.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2338821158
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: 21uscity.com
class: IN
ttl: 300
type: MX
pri: 10
target: mail.21uscity.com

Registro IPv6
host: 21uscity.com
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3030::ac43:a8a4

Registro IPv6
host: 21uscity.com
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3037::6815:5ec5