Searching for 21.40.216.49.in-addr.arpa. PTR record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 11 ms
Searching for 21.40.216.49.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 194 ms
Searching for 21.40.216.49.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 194 ms
Searching for ns2.apnic.net. A record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 76 ms
Searching for ns2.apnic.net. A record at d.gtld-servers.net. [192.31.80.30] ...took 6 ms
Searching for ns2.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 5 ms
Searching for 21.40.216.49.in-addr.arpa. PTR record at ns2.apnic.net. [203.119.95.53]
...took 5 msSearching for ns2.apnic.net. A record at d.gtld-servers.net. [192.31.80.30] ...took 6 ms
Searching for ns2.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 5 ms
Searching for rns1.twnic.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for rns1.twnic.net. A record at k.gtld-servers.net. [192.52.178.30] ...took 11 ms
Searching for 21.40.216.49.in-addr.arpa. PTR record at rns1.twnic.net. [210.201.80.127]
...took 231 msSearching for rns1.twnic.net. A record at k.gtld-servers.net. [192.52.178.30] ...took 11 ms
Searching for dns2.twnic.net.tw. A record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 12 ms
Searching for dns2.twnic.net.tw. A record at f.dns.tw. [182.173.0.10] ...took 315 ms
Searching for rns1.twnic.net. A record at dns2.twnic.net.tw. [103.235.88.2]
...took 266 msSearching for dns2.twnic.net.tw. A record at f.dns.tw. [182.173.0.10] ...took 315 ms
Nameserver rns1.twnic.net. reports: No such host 21.40.216.49.in-addr.arpa.
Total elapsed query time: 1,146 ms