shell:$ nslookup -timeout=2 -retry=1 'server-6493.prod.hosts.ooklaserver.net'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
server-6493.prod.hosts.ooklaserver.net	canonical name = bjm1-speedtest.smartfren.com.
Name:	bjm1-speedtest.smartfren.com
Address: 115.178.190.61
Name:	bjm1-speedtest.smartfren.com
Address: 2402:5680:98a::41