Registro DMARC
v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

Registro IPv4
host: heartlandchildrenshospital.us
class: IN
ttl: 300
type: A
ip: 104.21.47.7

Registro IPv4
host: heartlandchildrenshospital.us
class: IN
ttl: 300
type: A
ip: 172.67.169.171

Servidores DNS Principal (mname) y Secundario (rname)
host: heartlandchildrenshospital.us
class: IN
ttl: 1800
type: SOA
mname: dilbert.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2377681814
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Registro IPv6
host: heartlandchildrenshospital.us
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3034::ac43:a9ab

Registro IPv6
host: heartlandchildrenshospital.us
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3036::6815:2f07