shell:$ nslookup -timeout=2 -retry=1 'speedtest.vn'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	speedtest.vn
Address: 203.119.73.32
Name:	speedtest.vn
Address: 2001:dc8:1:2::32