Searching for vietnamtourcenter.com. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for vietnamtourcenter.com. A record at i.gtld-servers.net. [192.43.172.30] ...took 6 ms
Searching for vietnamtourcenter.com. A record at ns1.digitalocean.com. [172.64.52.210] ...took 26 ms
REFUSED
Searching for vietnamtourcenter.com. A record at ns3.digitalocean.com. [172.64.49.209] ...took 21 ms
REFUSED
Searching for vietnamtourcenter.com. A record at ns2.digitalocean.com. [172.64.53.21] ...took 15 ms
REFUSED
Searching for vietnamtourcenter.com. A record at ns1.digitalocean.com. [172.64.52.210] ...took 21 ms
REFUSED
Searching for vietnamtourcenter.com. A record at ns3.digitalocean.com. [172.64.49.209] ...took 17 ms
REFUSED
Searching for vietnamtourcenter.com. A record at ns2.digitalocean.com. [172.64.53.21] ...took 21 ms
REFUSED
Searching for vietnamtourcenter.com. A record at i.gtld-servers.net. [192.43.172.30] ...took 6 ms
Searching for vietnamtourcenter.com. A record at ns1.digitalocean.com. [172.64.52.210] ...took 26 ms
REFUSED
Searching for vietnamtourcenter.com. A record at ns3.digitalocean.com. [172.64.49.209] ...took 21 ms
REFUSED
Searching for vietnamtourcenter.com. A record at ns2.digitalocean.com. [172.64.53.21] ...took 15 ms
REFUSED
Searching for vietnamtourcenter.com. A record at ns1.digitalocean.com. [172.64.52.210] ...took 21 ms
REFUSED
Searching for vietnamtourcenter.com. A record at ns3.digitalocean.com. [172.64.49.209] ...took 17 ms
REFUSED
Searching for vietnamtourcenter.com. A record at ns2.digitalocean.com. [172.64.53.21] ...took 21 ms
REFUSED
None of the nameservers responded correctly.
Total elapsed query time: 142 ms