Registro DMARC
v=DMARC1; p=reject; adkim=s; aspf=s; rua=mailto:d@rua.agari.com; ruf=mailto:d@ruf.agari.com; fo=1

Registro IPv4
host: t.co
class: IN
ttl: 290
type: A
ip: 162.159.140.229

Servidores DNS Principal (mname) y Secundario (rname)
host: t.co
class: IN
ttl: 880
type: SOA
mname: a.u06.twtrdns.net
rname: noc.twitter.com
serial: 2023277796
refresh: 3600
retry: 600
expire: 604800
minimum-ttl: 3600

Información TXT
host: t.co
class: IN
ttl: 293
type: TXT
txt: v=spf1 -all
entries: Array

Información TXT
host: t.co
class: IN
ttl: 293
type: TXT
txt: 1nfb08f5jkpy0flhn6lwml2vk7x34hrd
entries: Array

Información TXT
host: t.co
class: IN
ttl: 293
type: TXT
txt: 1z8q6j6wymwb6bh0t3q28tp7vsbgnh6d
entries: Array

Información TXT
host: t.co
class: IN
ttl: 293
type: TXT
txt: 48qgbs8f2v055y997kpf4cx2302fzfs2
entries: Array