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

Non-authoritative answer:
www.speedtest.co	canonical name = www.speedtest.co.global.prod.fastly.net.
Name:	www.speedtest.co.global.prod.fastly.net
Address: 151.101.0.249
Name:	www.speedtest.co.global.prod.fastly.net
Address: 151.101.64.249
Name:	www.speedtest.co.global.prod.fastly.net
Address: 151.101.128.249
Name:	www.speedtest.co.global.prod.fastly.net
Address: 151.101.192.249