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

Non-authoritative answer:
accounts.kakao.com	canonical name = account-weblogin-yw1wjfa0.kgns3.com.
Name:	account-weblogin-yw1wjfa0.kgns3.com
Address: 121.53.91.15
Name:	account-weblogin-yw1wjfa0.kgns3.com
Address: 211.183.210.47