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

Non-authoritative answer:
www.khanacademy.org	canonical name = prod.khan.map.fastly.net.
Name:	prod.khan.map.fastly.net
Address: 151.101.1.42
Name:	prod.khan.map.fastly.net
Address: 151.101.129.42
Name:	prod.khan.map.fastly.net
Address: 151.101.65.42
Name:	prod.khan.map.fastly.net
Address: 151.101.193.42