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

Non-authoritative answer:
zdstatic.speedtest.net	canonical name = dual.ziffdavis.com.edgekey.net.
dual.ziffdavis.com.edgekey.net	canonical name = e96286.dsci.akamaiedge.net.
Name:	e96286.dsci.akamaiedge.net
Address: 23.222.17.8
Name:	e96286.dsci.akamaiedge.net
Address: 23.222.17.4
Name:	e96286.dsci.akamaiedge.net
Address: 2600:140a:5000:12::17de:11eb
Name:	e96286.dsci.akamaiedge.net
Address: 2600:140a:5000:12::17de:11e4