Registro IPv4
host: captcha.org
class: IN
ttl: 300
type: A
ip: 188.40.246.97

Servidores DNS Principal (mname) y Secundario (rname)
host: captcha.org
class: IN
ttl: 300
type: SOA
mname: hydrogen.ns.hetzner.com
rname: dns.hetzner.com
serial: 2022121101
refresh: 86400
retry: 10800
expire: 3600000
minimum-ttl: 3600

Servidor de Correo
host: captcha.org
class: IN
ttl: 300
type: MX
pri: 10
target: mail.captcha.org