Registro IPv4
host: symbologysystems.com
class: IN
ttl: 300
type: A
ip: 104.21.68.85

Registro IPv4
host: symbologysystems.com
class: IN
ttl: 300
type: A
ip: 172.67.192.123

Servidores DNS Principal (mname) y Secundario (rname)
host: symbologysystems.com
class: IN
ttl: 1800
type: SOA
mname: nora.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2386764113
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Registro IPv6
host: symbologysystems.com
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3037::6815:4455

Registro IPv6
host: symbologysystems.com
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3030::ac43:c07b