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Hostname or IP Type  
Searching for 166.211.9.121.in-addr.arpa. PTR record at A.ROOT-SERVERS.NET. [198.41.0.4] ...took 1 ms
Searching for 166.211.9.121.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 9 ms
Searching for apnic1.dnsnode.net. A record at A.ROOT-SERVERS.NET. [198.41.0.4] ...took 1 ms
Searching for apnic1.dnsnode.net. A record at j.gtld-servers.net. [192.48.79.30] ...took 271 ms
Searching for apnic1.dnsnode.net. A record at ns.sth.dnsnode.net. [192.36.144.116] ...took 38 ms
Searching for 166.211.9.121.in-addr.arpa. PTR record at apnic1.dnsnode.net. [194.146.106.106] ...took 1 ms
Searching for dns.guangzhou.gd.cn. A record at A.ROOT-SERVERS.NET. [198.41.0.4] ...took 1 ms
Searching for dns.guangzhou.gd.cn. A record at d.dns.cn. [203.119.28.1] ...took 1 ms
Searching for dns.guangzhou.gd.cn. A record at ns.guangzhou.gd.cn. [202.96.128.143] ...took 322 ms
Searching for 166.211.9.121.in-addr.arpa. PTR record at dns.guangzhou.gd.cn. [202.96.128.68]
Query timed out (interrupted after 2,002 milliseconds)
Retrying...
Searching for 166.211.9.121.in-addr.arpa. PTR record at ns.guangzhou.gd.cn. [202.96.128.143] ...took 260 ms

Nameserver ns.guangzhou.gd.cn. reports: No such host 166.211.9.121.in-addr.arpa.



Total elapsed query time: 2,907 ms