Registro IPv4
host: crawler-53.nicecrawler.com
class: IN
ttl: 300
type: A
ip: 172.67.148.14

Registro IPv4
host: crawler-53.nicecrawler.com
class: IN
ttl: 300
type: A
ip: 104.21.63.168

Registro IPv6
host: crawler-53.nicecrawler.com
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3033::6815:3fa8

Registro IPv6
host: crawler-53.nicecrawler.com
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3031::ac43:940e