livedoor.biz.		3600 IN	SOA ns1.naver.jp. domain.linecorp.com. (
				2021062900 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				3600       ; minimum (1 hour)
				)

Name servers:
livedoor.biz.		3600 IN	NS ns1.naver.jp.
livedoor.biz.		3600 IN	NS ns2.naver.jp.