Searching for 142.88.140.121.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for 142.88.140.121.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] Timed out while trying to resolve 142.88.140.121.in-addr.arpa./PTR, id=10222
Searching for 142.88.140.121.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 94 ms
Searching for 142.88.140.121.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] Timed out while trying to resolve 142.88.140.121.in-addr.arpa./PTR, id=10222
Searching for 142.88.140.121.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 94 ms
Searching for ns1.apnic.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for ns1.apnic.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 24 ms
Searching for ns1.apnic.net. A record at ns1.apnic.net. [203.119.42.53] ...took 247 ms
Searching for 142.88.140.121.in-addr.arpa. PTR record at ns1.apnic.net. [203.119.42.53]
...took 238 msSearching for ns1.apnic.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 24 ms
Searching for ns1.apnic.net. A record at ns1.apnic.net. [203.119.42.53] ...took 247 ms
Searching for g.dns.kr. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for g.dns.kr. A record at f.dns.kr. [210.101.62.1] ...took 226 ms
Searching for 142.88.140.121.in-addr.arpa. PTR record at g.dns.kr. [202.31.190.1]
...took 6 msSearching for g.dns.kr. A record at f.dns.kr. [210.101.62.1] ...took 226 ms
Searching for rev2.kornet.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for rev2.kornet.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 23 ms
Searching for rev2.kornet.net. A record at ns2.kornet.net. [211.216.50.160] ...took 282 ms
Searching for 142.88.140.121.in-addr.arpa. PTR record at rev2.kornet.net. [211.216.50.180]
...took 282 msSearching for rev2.kornet.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 23 ms
Searching for rev2.kornet.net. A record at ns2.kornet.net. [211.216.50.160] ...took 282 ms
Nameserver rev2.kornet.net. reports: No such host 142.88.140.121.in-addr.arpa.
Total elapsed query time: 3,478 ms