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

Non-authoritative answer:
app.speedtest.net	canonical name = app.speedtest.net.cdn.cloudflare.net.
Name:	app.speedtest.net.cdn.cloudflare.net
Address: 104.18.6.178
Name:	app.speedtest.net.cdn.cloudflare.net
Address: 104.18.7.178