Searching for 121.190.237.212.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 13 ms
Searching for 121.190.237.212.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 171 ms
Searching for 121.190.237.212.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 171 ms
Searching for pri.authdns.ripe.net. A record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 11 ms
Searching for pri.authdns.ripe.net. A record at e.gtld-servers.net. [192.12.94.30] ...took 23 ms
Searching for pri.authdns.ripe.net. A record at manus.authdns.ripe.net. [193.0.9.7] ...took 11 ms
Searching for 121.190.237.212.in-addr.arpa. PTR record at pri.authdns.ripe.net. [193.0.9.5]
...took 12 msSearching for pri.authdns.ripe.net. A record at e.gtld-servers.net. [192.12.94.30] ...took 23 ms
Searching for pri.authdns.ripe.net. A record at manus.authdns.ripe.net. [193.0.9.7] ...took 11 ms
Nameserver pri.authdns.ripe.net. reports: No such host 121.190.237.212.in-addr.arpa.
Total elapsed query time: 241 ms