Registro IPv4
host: courseindex.com
class: IN
ttl: 90
type: A
ip: 15.157.121.206

Registro IPv4
host: courseindex.com
class: IN
ttl: 90
type: A
ip: 16.52.251.43

Servidores DNS Principal (mname) y Secundario (rname)
host: courseindex.com
class: IN
ttl: 192
type: SOA
mname: ns-546.awsdns-04.net
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Información TXT
host: courseindex.com
class: IN
ttl: 400
type: TXT
txt: v=spf1 ip4:209.133.195.190 ip4:23.111.180.178 include:relay.mailchannels.net +a +mx +ip4:162.252.80.184 ~all
entries: Array