shell:$ nslookup -timeout=2 -retry=1 'koufu.zopim.io'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	koufu.zopim.io
Address: 162.159.1.18
Name:	koufu.zopim.io
Address: 2400:cb00:2049:1::a29f:112