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

Non-authoritative answer:
speedtest.adslthailand.com	canonical name = adslthailand.com.
Name:	adslthailand.com
Address: 61.91.1.228