Registro IPv4
host: tongdao.io
class: IN
ttl: 300
type: A
ip: 104.21.94.86

Registro IPv4
host: tongdao.io
class: IN
ttl: 300
type: A
ip: 172.67.221.146

Servidores DNS Principal (mname) y Secundario (rname)
host: tongdao.io
class: IN
ttl: 1800
type: SOA
mname: cesar.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2377875992
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Registro IPv6
host: tongdao.io
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3031::ac43:dd92

Registro IPv6
host: tongdao.io
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3034::6815:5e56