Searching for 121.171.101.38.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for 121.171.101.38.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 196 ms
Searching for 121.171.101.38.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 196 ms
Searching for auth4.dns.cogentco.com. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for auth4.dns.cogentco.com. A record at g.gtld-servers.net. [192.42.93.30] ...took 7 ms
Searching for auth4.dns.cogentco.com. A record at auth1.dns.cogentco.com. [66.28.0.14] ...took 12 ms
Searching for 121.171.101.38.in-addr.arpa. PTR record at auth4.dns.cogentco.com. [80.245.32.74]
...took 18 msSearching for auth4.dns.cogentco.com. A record at g.gtld-servers.net. [192.42.93.30] ...took 7 ms
Searching for auth4.dns.cogentco.com. A record at auth1.dns.cogentco.com. [66.28.0.14] ...took 12 ms
Nameserver auth4.dns.cogentco.com. reports: No such host 121.171.101.38.in-addr.arpa.
Total elapsed query time: 263 ms