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

Non-authoritative answer:
Name:	ddnavi.com
Address: 13.226.251.86
Name:	ddnavi.com
Address: 13.226.251.63
Name:	ddnavi.com
Address: 13.226.251.5
Name:	ddnavi.com
Address: 13.226.251.11