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

Non-authoritative answer:
Name:	khanacademy.com
Address: 3.171.22.48
Name:	khanacademy.com
Address: 3.171.22.43
Name:	khanacademy.com
Address: 3.171.22.88
Name:	khanacademy.com
Address: 3.171.22.86