Searching for 37.71.120.137.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for 37.71.120.137.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 151 ms
Searching for 37.71.120.137.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 151 ms
Searching for u.arin.net. A record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 12 ms
Searching for u.arin.net. A record at c.gtld-servers.net. [192.26.92.30] ...took 25 ms
Searching for u.arin.net. A record at u.arin.net. [204.61.216.50] ...took 11 ms
Searching for 37.71.120.137.in-addr.arpa. PTR record at u.arin.net. [204.61.216.50]
...took 11 msSearching for u.arin.net. A record at c.gtld-servers.net. [192.26.92.30] ...took 25 ms
Searching for u.arin.net. A record at u.arin.net. [204.61.216.50] ...took 11 ms
Searching for ns1.maastrichtuniversity.nl. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 12 ms
Searching for ns1.maastrichtuniversity.nl. A record at ns3.dns.nl. [194.0.25.24] ...took 12 ms
Searching for 37.71.120.137.in-addr.arpa. PTR record at ns1.maastrichtuniversity.nl. [137.120.24.50]
...took 18 msSearching for ns1.maastrichtuniversity.nl. A record at ns3.dns.nl. [194.0.25.24] ...took 12 ms
Searching for ns1.zurich.surf.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for ns1.zurich.surf.net. A record at j.gtld-servers.net. [192.48.79.30] ...took 12 ms
Searching for ns1.zurich.surf.net. A record at ns1.surfnet.nl. [192.87.106.101] ...took 12 ms
Searching for ns1.maastrichtuniversity.nl. A record at ns1.zurich.surf.net. [195.176.255.9]
...took 11 msSearching for ns1.zurich.surf.net. A record at j.gtld-servers.net. [192.48.79.30] ...took 12 ms
Searching for ns1.zurich.surf.net. A record at ns1.surfnet.nl. [192.87.106.101] ...took 12 ms
Nameserver ns1.maastrichtuniversity.nl. reports: No such host 37.71.120.137.in-addr.arpa.
Total elapsed query time: 315 ms