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

Non-authoritative answer:
www.fool.com	canonical name = www.fool.com.cdn.cloudflare.net.
Name:	www.fool.com.cdn.cloudflare.net
Address: 104.18.40.166
Name:	www.fool.com.cdn.cloudflare.net
Address: 172.64.147.90
Name:	www.fool.com.cdn.cloudflare.net
Address: 2606:4700:4402::6812:28a6
Name:	www.fool.com.cdn.cloudflare.net
Address: 2606:4700:4407::ac40:935a