shell:$ nslookup -timeout=2 -retry=1 't1.kakaocdn.net'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
t1.kakaocdn.net	canonical name = t1-kakao-6sckabcs.kgslb.com.
t1-kakao-6sckabcs.kgslb.com	canonical name = t1.kakaocdn.net.edgesuite.net.
t1.kakaocdn.net.edgesuite.net	canonical name = a1928.dscw39.akamai.net.
Name:	a1928.dscw39.akamai.net
Address: 23.199.54.119
Name:	a1928.dscw39.akamai.net
Address: 23.199.54.108
Name:	a1928.dscw39.akamai.net
Address: 2600:1407:e800:23::b819:7bca
Name:	a1928.dscw39.akamai.net
Address: 2600:1407:e800:23::b819:7bb9