shell:$ nslookup -timeout=2 -retry=1 'm.stock.naver.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
m.stock.naver.com	canonical name = m.stock.naver.com.nheos.com.
Name:	m.stock.naver.com.nheos.com
Address: 210.89.168.36
Name:	m.stock.naver.com.nheos.com
Address: 210.89.168.68