Searching for 251.208.32.58.in-addr.arpa. PTR record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 25 ms
Searching for 251.208.32.58.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for 251.208.32.58.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for ns2.apnic.net. A record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 11 ms
Searching for ns2.apnic.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 24 ms
Searching for ns2.apnic.net. A record at apnic.authdns.ripe.net. [193.0.9.9] ...took 11 ms
Searching for 251.208.32.58.in-addr.arpa. PTR record at ns2.apnic.net. [203.119.95.53]
...took 6 msSearching for ns2.apnic.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 24 ms
Searching for ns2.apnic.net. A record at apnic.authdns.ripe.net. [193.0.9.9] ...took 11 ms
Searching for ns-px.online.sh.cn. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 11 ms
Searching for ns-px.online.sh.cn. A record at a.dns.cn. [203.119.25.1] ...took 225 ms
Searching for ns-px.online.sh.cn. A record at ns-px.online.sh.cn. [202.96.209.6] ...took 233 ms
Searching for 251.208.32.58.in-addr.arpa. PTR record at ns-px.online.sh.cn. [202.96.209.6]
...took 232 msSearching for ns-px.online.sh.cn. A record at a.dns.cn. [203.119.25.1] ...took 225 ms
Searching for ns-px.online.sh.cn. A record at ns-px.online.sh.cn. [202.96.209.6] ...took 233 ms
Nameserver ns-px.online.sh.cn. reports: No such host 251.208.32.58.in-addr.arpa.
Total elapsed query time: 790 ms