Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc@purelymail.com; ruf=mailto:dmarc@purelymail.com

Registro IPv4
host: ns6.dnsdiy.com
class: IN
ttl: 300
type: A
ip: 150.109.10.234

host: wwwcdn.com
class: IN
ttl: 600
type: CNAME
target: ns6.dnsdiy.com