Searching for tiennguyen.tk. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 6 ms
Searching for tiennguyen.tk. A record at c.ns.tk. [194.0.40.1] ...took 14 ms
Searching for tiennguyen.tk. A record at c.ns.tk. [194.0.40.1] ...took 14 ms
Nameserver c.ns.tk. reports: No such host tiennguyen.tk
hint: Try www.tiennguyen.tk instead.
Total elapsed query time: 20 ms