Registro IPv4
host: cdn-content.ampproject.org
class: IN
ttl: 252
type: A
ip: 216.58.209.65

host: buybooks-co-kr.cdn.ampproject.org
class: IN
ttl: 300
type: CNAME
target: cdn-content.ampproject.org

Registro IPv6
host: cdn-content.ampproject.org
class: IN
ttl: 300
type: AAAA
ipv6: 2a00:1450:4003:808::2001