shell:$ nslookup -timeout=2 -retry=1 'speedtest.biznetnetworks.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
Name:	speedtest.biznetnetworks.com
Address: 117.102.109.186
Name:	speedtest.biznetnetworks.com
Address: 2404:8000:a0:402::2