Searching for 51.75.57.87.in-addr.arpa. PTR record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 11 ms
Searching for 51.75.57.87.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 248 ms
Searching for 51.75.57.87.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 248 ms
Searching for pri.authdns.ripe.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for pri.authdns.ripe.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 24 ms
Searching for pri.authdns.ripe.net. A record at rirns.arin.net. [199.253.249.53] ...took 155 ms
Searching for 51.75.57.87.in-addr.arpa. PTR record at pri.authdns.ripe.net. [193.0.9.5]
...took 11 msSearching for pri.authdns.ripe.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 24 ms
Searching for pri.authdns.ripe.net. A record at rirns.arin.net. [199.253.249.53] ...took 155 ms
Searching for auth05.ns.tdc.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for auth05.ns.tdc.net. A record at e.gtld-servers.net. [192.12.94.30] ...took 23 ms
Searching for 51.75.57.87.in-addr.arpa. PTR record at auth05.ns.tdc.net. [62.243.0.168]
...took 20 msSearching for auth05.ns.tdc.net. A record at e.gtld-servers.net. [192.12.94.30] ...took 23 ms
Searching for auth02.ns.tele.dk. A record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 25 ms
Searching for auth02.ns.tele.dk. A record at s.nic.dk. [193.176.144.15] ...took 14 ms
Searching for auth02.ns.tele.dk. A record at auth02.ns.tele.dk. [194.192.207.166] ...took 16 ms
Searching for auth05.ns.tdc.net. A record at auth02.ns.tele.dk. [194.192.207.166]
...took 16 msSearching for auth02.ns.tele.dk. A record at s.nic.dk. [193.176.144.15] ...took 14 ms
Searching for auth02.ns.tele.dk. A record at auth02.ns.tele.dk. [194.192.207.166] ...took 16 ms
Nameserver auth05.ns.tdc.net. reports: No such host 51.75.57.87.in-addr.arpa.
Total elapsed query time: 589 ms