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

Non-authoritative answer:
www.kakaotalk.com	canonical name = prod-kakaocorp-uh5mugyn.kgns3.com.
Name:	prod-kakaocorp-uh5mugyn.kgns3.com
Address: 121.53.221.97
Name:	prod-kakaocorp-uh5mugyn.kgns3.com
Address: 211.183.223.11
Name:	prod-kakaocorp-uh5mugyn.kgns3.com
Address: 211.183.211.19