Registro DMARC
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

Registro IPv4
host: courtesycentral.com
class: IN
ttl: 300
type: A
ip: 172.67.133.114

Registro IPv4
host: courtesycentral.com
class: IN
ttl: 300
type: A
ip: 104.21.5.124

Servidores DNS Principal (mname) y Secundario (rname)
host: courtesycentral.com
class: IN
ttl: 235
type: SOA
mname: ezra.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2415292264
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

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

Registro IPv6
host: courtesycentral.com
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3030::ac43:8572

Registro IPv6
host: courtesycentral.com
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3033::6815:57c