Searching for 157.140.57.47.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 20 ms
Searching for 157.140.57.47.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for 157.140.57.47.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for x.arin.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 20 ms
Searching for x.arin.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 31 ms
Searching for x.arin.net. A record at u.arin.net. [204.61.216.50] ...took 6 ms
Searching for 157.140.57.47.in-addr.arpa. PTR record at x.arin.net. [199.180.180.63]
...took 90 msSearching for x.arin.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 31 ms
Searching for x.arin.net. A record at u.arin.net. [204.61.216.50] ...took 6 ms
Searching for rdns2.alidns.com. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 20 ms
Searching for rdns2.alidns.com. A record at m.gtld-servers.net. [192.55.83.30] ...took 11 ms
Searching for rdns2.alidns.com. A record at ns5.aliyun.com. [140.205.122.153] ...took 6 ms
Searching for 157.140.57.47.in-addr.arpa. PTR record at rdns2.alidns.com. [140.205.122.243]
...took 6 msSearching for rdns2.alidns.com. A record at m.gtld-servers.net. [192.55.83.30] ...took 11 ms
Searching for rdns2.alidns.com. A record at ns5.aliyun.com. [140.205.122.153] ...took 6 ms
Nameserver rdns2.alidns.com. reports: No such host 157.140.57.47.in-addr.arpa.
Total elapsed query time: 222 ms