Searching for 139.18.166.121.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for 139.18.166.121.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 6 ms
Searching for 139.18.166.121.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 6 ms
Searching for ns2.apnic.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for ns2.apnic.net. A record at k.gtld-servers.net. [192.52.178.30] ...took 12 ms
Searching for ns2.apnic.net. A record at apnic.authdns.ripe.net. [193.0.9.9] ...took 12 ms
Searching for 139.18.166.121.in-addr.arpa. PTR record at ns2.apnic.net. [203.119.95.53]
...took 6 msSearching for ns2.apnic.net. A record at k.gtld-servers.net. [192.52.178.30] ...took 12 ms
Searching for ns2.apnic.net. A record at apnic.authdns.ripe.net. [193.0.9.9] ...took 12 ms
Searching for b.dns.kr. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for b.dns.kr. A record at c.dns.kr. [210.101.61.1] ...took 275 ms
Searching for 139.18.166.121.in-addr.arpa. PTR record at b.dns.kr. [210.101.60.1]
...took 292 msSearching for b.dns.kr. A record at c.dns.kr. [210.101.61.1] ...took 275 ms
Searching for rev1.kornet.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for rev1.kornet.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 7 ms
Searching for rev1.kornet.net. A record at ns.kornet.net. [211.216.50.150] ...took 289 ms
Searching for 139.18.166.121.in-addr.arpa. PTR record at rev1.kornet.net. [211.216.50.170]
...took 290 msSearching for rev1.kornet.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 7 ms
Searching for rev1.kornet.net. A record at ns.kornet.net. [211.216.50.150] ...took 289 ms
Nameserver rev1.kornet.net. reports: No such host 139.18.166.121.in-addr.arpa.
Total elapsed query time: 1,247 ms