Searching for 142.88.140.121.in-addr.arpa. PTR record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 25 ms
Searching for 142.88.140.121.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 169 ms
Searching for 142.88.140.121.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 169 ms
Searching for rirns.arin.net. A record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 11 ms
Searching for rirns.arin.net. A record at j.gtld-servers.net. [192.48.79.30] ...took 11 ms
Searching for rirns.arin.net. A record at ns3.arin.net. [199.5.26.108] ...took 155 ms
Searching for 142.88.140.121.in-addr.arpa. PTR record at rirns.arin.net. [199.253.249.53]
...took 155 msSearching for rirns.arin.net. A record at j.gtld-servers.net. [192.48.79.30] ...took 11 ms
Searching for rirns.arin.net. A record at ns3.arin.net. [199.5.26.108] ...took 155 ms
Searching for e.dns.kr. A record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 12 ms
Searching for e.dns.kr. A record at c.dns.kr. [210.101.61.1] ...took 345 ms
Searching for 142.88.140.121.in-addr.arpa. PTR record at e.dns.kr. [202.30.124.100]
...took 277 msSearching for e.dns.kr. A record at c.dns.kr. [210.101.61.1] ...took 345 ms
Searching for rev1.kornet.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for rev1.kornet.net. A record at g.gtld-servers.net. [192.42.93.30] ...took 5 ms
Searching for rev1.kornet.net. A record at ns2.kornet.net. [211.216.50.160] ...took 279 ms
Searching for 142.88.140.121.in-addr.arpa. PTR record at rev1.kornet.net. [211.216.50.170]
...took 276 msSearching for rev1.kornet.net. A record at g.gtld-servers.net. [192.42.93.30] ...took 5 ms
Searching for rev1.kornet.net. A record at ns2.kornet.net. [211.216.50.160] ...took 279 ms
Nameserver rev1.kornet.net. reports: No such host 142.88.140.121.in-addr.arpa.
Total elapsed query time: 1,731 ms