shell:$ nslookup -timeout=2 -retry=1 'tv.kakao.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
tv.kakao.com	canonical name = videocloud-prod-public-o6p1tuov.kgns1.com.
Name:	videocloud-prod-public-o6p1tuov.kgns1.com
Address: 211.249.247.16