Searching for 51.165.121.210.in-addr.arpa. PTR record at J.ROOT-SERVERS.NET. [192.58.128.30]
...took 34 ms
Searching for 51.165.121.210.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 192 ms
Searching for 51.165.121.210.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 192 ms
Searching for ns1.apnic.net. A record at J.ROOT-SERVERS.NET. [192.58.128.30]
...took 34 ms
Searching for ns1.apnic.net. A record at l.gtld-servers.net. [192.41.162.30] ...took 12 ms
Searching for ns1.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 117 ms
Searching for 51.165.121.210.in-addr.arpa. PTR record at ns1.apnic.net. [203.119.42.53]
...took 166 msSearching for ns1.apnic.net. A record at l.gtld-servers.net. [192.41.162.30] ...took 12 ms
Searching for ns1.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 117 ms
Searching for f.dns.kr. A record at C.ROOT-SERVERS.NET. [192.33.4.12]
...took 11 ms
Searching for f.dns.kr. A record at d.dns.kr. [203.83.159.1] ...took 221 ms
Searching for 51.165.121.210.in-addr.arpa. PTR record at f.dns.kr. [210.101.62.1]
...took 223 msSearching for f.dns.kr. A record at d.dns.kr. [203.83.159.1] ...took 221 ms
Searching for rev2.kornet.net. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 34 ms
Searching for rev2.kornet.net. A record at m.gtld-servers.net. [192.55.83.30] ...took 12 ms
Searching for rev2.kornet.net. A record at ns2.kornet.net. [211.216.50.160] ...took 300 ms
Searching for 51.165.121.210.in-addr.arpa. PTR record at rev2.kornet.net. [211.216.50.180]
...took 284 msSearching for rev2.kornet.net. A record at m.gtld-servers.net. [192.55.83.30] ...took 12 ms
Searching for rev2.kornet.net. A record at ns2.kornet.net. [211.216.50.160] ...took 300 ms
Nameserver rev2.kornet.net. reports: No such host 51.165.121.210.in-addr.arpa.
Total elapsed query time: 1,640 ms