Searching for 18.121.252.123.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for 18.121.252.123.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 155 ms
SERVFAIL
Searching for 18.121.252.123.in-addr.arpa. PTR record at dns6.kbtelecom.net.tw. [203.133.1.6] ...took 293 ms
SERVFAIL
Searching for 18.121.252.123.in-addr.arpa. PTR record at dns8.kbtelecom.net.tw. [203.133.1.8]
Searching for 18.121.252.123.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 155 ms
Searching for ns1.apnic.net. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 11 ms
Searching for ns1.apnic.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for ns1.apnic.net. A record at ns1.apnic.net. [203.119.42.53] ...took 190 ms
Searching for 18.121.252.123.in-addr.arpa. PTR record at ns1.apnic.net. [203.119.42.53]
...took 190 msSearching for ns1.apnic.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for ns1.apnic.net. A record at ns1.apnic.net. [203.119.42.53] ...took 190 ms
Searching for dns6.kbtelecom.net.tw. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for dns6.kbtelecom.net.tw. A record at c.dns.tw. [203.66.87.201] ...took 291 ms
Searching for dns6.kbtelecom.net.tw. A record at h.twnic.net.tw. [220.229.225.196] ...took 247 ms
Searching for dns6.kbtelecom.net.tw. A record at ns1.kbtelecom.net.tw. [61.63.0.66] ...took 286 ms
Searching for 18.121.252.123.in-addr.arpa. PTR record at dns6.kbtelecom.net.tw. [203.133.1.6]
...took 299 msSearching for dns6.kbtelecom.net.tw. A record at c.dns.tw. [203.66.87.201] ...took 291 ms
Searching for dns6.kbtelecom.net.tw. A record at h.twnic.net.tw. [220.229.225.196] ...took 247 ms
Searching for dns6.kbtelecom.net.tw. A record at ns1.kbtelecom.net.tw. [61.63.0.66] ...took 286 ms
SERVFAIL
Searching for dns8.kbtelecom.net.tw. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for dns8.kbtelecom.net.tw. A record at b.dns.tw. [210.201.138.58] ...took 236 ms
Searching for dns8.kbtelecom.net.tw. A record at h.twnic.net.tw. [220.229.225.196] ...took 246 ms
Searching for dns8.kbtelecom.net.tw. A record at ns1.kbtelecom.net.tw. [61.63.0.66] ...took 287 ms
Searching for 18.121.252.123.in-addr.arpa. PTR record at dns8.kbtelecom.net.tw. [203.133.1.8]
Searching for dns8.kbtelecom.net.tw. A record at b.dns.tw. [210.201.138.58] ...took 236 ms
Searching for dns8.kbtelecom.net.tw. A record at h.twnic.net.tw. [220.229.225.196] ...took 246 ms
Searching for dns8.kbtelecom.net.tw. A record at ns1.kbtelecom.net.tw. [61.63.0.66] ...took 287 ms
Query timed out (interrupted after 2,001 milliseconds)
Retrying...Searching for 18.121.252.123.in-addr.arpa. PTR record at dns6.kbtelecom.net.tw. [203.133.1.6] ...took 293 ms
SERVFAIL
Searching for 18.121.252.123.in-addr.arpa. PTR record at dns8.kbtelecom.net.tw. [203.133.1.8]
Query timed out (interrupted after 2,002 milliseconds)
None of the nameservers responded correctly.
Total elapsed query time: 6,780 ms