Registro IPv4
host: crawler.com
class: IN
ttl: 21600
type: A
ip: 64.135.77.50

Servidores DNS Principal (mname) y Secundario (rname)
host: crawler.com
class: IN
ttl: 21600
type: SOA
mname: ns0.dnsmadeeasy.com
rname: dns.dnsmadeeasy.com
serial: 2002100855
refresh: 43200
retry: 3600
expire: 1209600
minimum-ttl: 180

Servidor de Correo
host: crawler.com
class: IN
ttl: 21600
type: MX
pri: 10
target: bkp.inbox.com

Servidor de Correo
host: crawler.com
class: IN
ttl: 21600
type: MX
pri: 10
target: ins.inbox.com

Información TXT
host: crawler.com
class: IN
ttl: 21600
type: TXT
txt: v=spf1 ip4:64.135.83.0/24 ip4:64.135.77.0/24 ip4:212.4.136.0/26 ~all
entries: Array