Searching for tiennguyen.tk. A record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 19 ms
Searching for tiennguyen.tk. A record at b.ns.tk. [194.0.39.1] ...took 13 ms
Searching for tiennguyen.tk. A record at b.ns.tk. [194.0.39.1] ...took 13 ms
Nameserver b.ns.tk. reports: No such host tiennguyen.tk
hint: Try www.tiennguyen.tk instead.
Total elapsed query time: 32 ms