shell:$ nslookup -timeout=2 -retry=1 'ajax.cloudflare.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	ajax.cloudflare.com
Address: 104.17.72.14
Name:	ajax.cloudflare.com
Address: 104.17.73.14
Name:	ajax.cloudflare.com
Address: 2606:4700::6811:480e
Name:	ajax.cloudflare.com
Address: 2606:4700::6811:490e