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

Non-authoritative answer:
Name:	khanacademy.org
Address: 108.139.47.109
Name:	khanacademy.org
Address: 108.139.47.26
Name:	khanacademy.org
Address: 108.139.47.35
Name:	khanacademy.org
Address: 108.139.47.84