Registro IPv4
host: freelibros.org
class: IN
ttl: 300
type: A
ip: 104.21.3.92

Registro IPv4
host: freelibros.org
class: IN
ttl: 300
type: A
ip: 172.67.130.136

Servidores DNS Principal (mname) y Secundario (rname)
host: freelibros.org
class: IN
ttl: 1800
type: SOA
mname: jobs.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2374547133
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Registro IPv6
host: freelibros.org
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3030::ac43:8288

Registro IPv6
host: freelibros.org
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3032::6815:35c