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

Non-authoritative answer:
Name:	zendesk.co
Address: 172.233.219.49
Name:	zendesk.co
Address: 172.233.219.123
Name:	zendesk.co
Address: 172.237.146.8
Name:	zendesk.co
Address: 172.237.146.25
Name:	zendesk.co
Address: 172.237.146.38
Name:	zendesk.co
Address: 172.233.219.78