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

Non-authoritative answer:
Name:	www.speedtest.org
Address: 172.67.130.66
Name:	www.speedtest.org
Address: 104.21.3.52
Name:	www.speedtest.org
Address: 2606:4700:3030::6815:334
Name:	www.speedtest.org
Address: 2606:4700:3033::ac43:8242