Searching for 157.140.57.47.in-addr.arpa. PTR record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for 157.140.57.47.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 156 ms
Searching for 157.140.57.47.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 156 ms
Searching for u.arin.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for u.arin.net. A record at k.gtld-servers.net. [192.52.178.30] ...took 12 ms
Searching for u.arin.net. A record at u.arin.net. [204.61.216.50] ...took 11 ms
Searching for 157.140.57.47.in-addr.arpa. PTR record at u.arin.net. [204.61.216.50]
...took 12 msSearching for u.arin.net. A record at k.gtld-servers.net. [192.52.178.30] ...took 12 ms
Searching for u.arin.net. A record at u.arin.net. [204.61.216.50] ...took 11 ms
Searching for rdns1.alidns.com. A record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 11 ms
Searching for rdns1.alidns.com. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for rdns1.alidns.com. A record at ns4.aliyun.com. [140.205.122.143] ...took 39 ms
Searching for 157.140.57.47.in-addr.arpa. PTR record at rdns1.alidns.com. [140.205.122.253]
...took 39 msSearching for rdns1.alidns.com. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for rdns1.alidns.com. A record at ns4.aliyun.com. [140.205.122.143] ...took 39 ms
Nameserver rdns1.alidns.com. reports: No such host 157.140.57.47.in-addr.arpa.
Total elapsed query time: 308 ms