Registro DMARC
v=DMARC1; p=reject; pct=100; rua=mailto:dmarc-aggregates@stackoverflow.com; ruf=mailto:dmarc-forensics@stackoverflow.com; fo=1

Registro IPv4
host: askubuntu.com
class: IN
ttl: 300
type: A
ip: 104.18.37.100

Registro IPv4
host: askubuntu.com
class: IN
ttl: 300
type: A
ip: 172.64.150.156

Servidores DNS Principal (mname) y Secundario (rname)
host: askubuntu.com
class: IN
ttl: 1800
type: SOA
mname: damian.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2372427709
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Información TXT
host: askubuntu.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 -all
entries: Array

Información TXT
host: askubuntu.com
class: IN
ttl: 300
type: TXT
txt: google-site-verification=PgJFv7ljJQmUa7wupnJgoim3Lx22fbQzyhES7-Q9cv8
entries: Array