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

Non-authoritative answer:
Name:	kakaotalk.com
Address: 121.53.221.97
Name:	kakaotalk.com
Address: 211.183.211.19
Name:	kakaotalk.com
Address: 211.183.223.11