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

Non-authoritative answer:
Name:	www.classcentral.com
Address: 172.66.155.95
Name:	www.classcentral.com
Address: 104.20.31.233
Name:	www.classcentral.com
Address: 2606:4700:10::6814:1fe9
Name:	www.classcentral.com
Address: 2606:4700:10::ac42:9b5f