Hostname or IP
Type
Searching for 121.17.105.162.in-addr.arpa. PTR record at J.ROOT-SERVERS.NET. [192.58.128.30] ...took 2 ms
Searching for 121.17.105.162.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 296 ms
Searching for z.arin.net. A record at J.ROOT-SERVERS.NET. [192.58.128.30] ...took 3 ms
Searching for z.arin.net. A record at m.gtld-servers.net. [192.55.83.30] ...took 9 ms
Searching for z.arin.net. A record at u.arin.net. [204.61.216.50] ...took 1 ms
Searching for 121.17.105.162.in-addr.arpa. PTR record at z.arin.net. [199.212.0.63] ...took 91 ms
Searching for ns.pku.edu.cn. A record at J.ROOT-SERVERS.NET. [192.58.128.30] ...took 2 ms
Searching for ns.pku.edu.cn. A record at c.dns.cn. [203.119.27.1] ...took 21 ms
Searching for ns2.cuhk.hk. A record at J.ROOT-SERVERS.NET. [192.58.128.30] ...took 1 ms
Searching for ns2.cuhk.hk. A record at z.hkirc.net.hk. [194.146.106.70] ...took 6 ms
Searching for dns2.cuhk.edu.hk. A record at J.ROOT-SERVERS.NET. [192.58.128.30] ...took 2 ms
Searching for dns2.cuhk.edu.hk. A record at x.hkirc.net.hk. [202.45.188.39] ...took 194 ms
Searching for ns4.gdnsec.com. A record at J.ROOT-SERVERS.NET. [192.58.128.30] ...took 1 ms
Searching for ns4.gdnsec.com. A record at c.gtld-servers.net. [192.26.92.30] ...took 2 ms
Searching for ns4.gdnsec.com. A record at tin.gdnsec.com. [45.116.40.1] ...took 14 ms
Searching for dns2.cuhk.edu.hk. A record at ns4.gdnsec.com. [45.116.40.4] ...took 14 ms
Searching for ns2.cuhk.hk. A record at dns2.cuhk.edu.hk. [137.189.10.16] ...took 184 ms
Searching for ns.pku.edu.cn. A record at ns2.cuhk.hk. [137.189.6.21] ...took 183 ms
Searching for 121.17.105.162.in-addr.arpa. PTR record at ns.pku.edu.cn. [202.112.7.13] ...took 262 ms

Nameserver ns.pku.edu.cn. reports: No such host 121.17.105.162.in-addr.arpa.



Total elapsed query time: 1,288 ms
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