shell:$ nslookup -timeout=2 -retry=1 'zdstatic.speedtest.net'
Server:		75.98.161.224
Address:	75.98.161.224#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: 23.62.106.143
Name:	e96286.dsci.akamaiedge.net
Address: 23.62.106.136
Name:	e96286.dsci.akamaiedge.net
Address: 2600:1405:d400:8::173e:6a88
Name:	e96286.dsci.akamaiedge.net
Address: 2600:1405:d400:8::173e:6a8f