shell:$ nslookup -timeout=2 -retry=1 'dl-obs.official.line.naver.jp'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
dl-obs.official.line.naver.jp	canonical name = cac-dl-obs.official.line.naver.jp.line-zero.akadns.net.
cac-dl-obs.official.line.naver.jp.line-zero.akadns.net	canonical name = d1agdg9cccjmma.cloudfront.net.
Name:	d1agdg9cccjmma.cloudfront.net
Address: 3.170.139.117
Name:	d1agdg9cccjmma.cloudfront.net
Address: 3.170.139.214
Name:	d1agdg9cccjmma.cloudfront.net
Address: 3.170.139.198
Name:	d1agdg9cccjmma.cloudfront.net
Address: 3.170.139.61