Registro DMARC
v=DMARC1; p=reject; sp=reject; fo=1;

Registro IPv4
host: britannica.com
class: IN
ttl: 90
type: A
ip: 3.89.188.123

Registro IPv4
host: britannica.com
class: IN
ttl: 90
type: A
ip: 52.21.111.42

Servidores DNS Principal (mname) y Secundario (rname)
host: britannica.com
class: IN
ttl: 900
type: SOA
mname: ns-243.awsdns-30.com
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Información TXT
host: britannica.com
class: IN
ttl: 1800
type: TXT
txt: v=spf1 a include:sparkpostmail.com ~all
entries: Array

Información TXT
host: britannica.com
class: IN
ttl: 1800
type: TXT
txt: google-site-verification=3qlcdPLjaLxZmTfGmv2-7hXoRu7HWw7Sx--a2KgIoN0
entries: Array

Información TXT
host: britannica.com
class: IN
ttl: 1800
type: TXT
txt: ca3-34d513380a624c15b1894f20512d2ca8
entries: Array

Información TXT
host: britannica.com
class: IN
ttl: 1800
type: TXT
txt: facebook-domain-verification=yx5oj1072bsq69m7blcnrkktdu6h4h
entries: Array

Información TXT
host: britannica.com
class: IN
ttl: 1800
type: TXT
txt: google-site-verification=k10aAIZQu5EjFbrh-ABW-9q9phYyigXf-211snaxdg4
entries: Array

Información TXT
host: britannica.com
class: IN
ttl: 1800
type: TXT
txt: ca3-5187b5f7e89c48ce9ac11ac4ad4ba681
entries: Array

Información TXT
host: britannica.com
class: IN
ttl: 1800
type: TXT
txt: google-site-verification=iCsMOBxTnqow6GNvW0LQ292qIMjLqMXwpQ6tOfIZgY4
entries: Array