shell:$ nslookup -timeout=2 -retry=1 'openspeedtest.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	openspeedtest.com
Address: 23.239.29.5
Name:	openspeedtest.com
Address: 2600:3c00::f03c:92ff:fe4d:85ad