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

Non-authoritative answer:
Name:	www.opengl.org
Address: 172.67.175.126
Name:	www.opengl.org
Address: 104.21.17.110
Name:	www.opengl.org
Address: 2606:4700:3031::ac43:af7e
Name:	www.opengl.org
Address: 2606:4700:3037::6815:116e