Searching for 56.128.91.145.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for 56.128.91.145.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 279 ms
SERVFAIL
Searching for 56.128.91.145.in-addr.arpa. PTR record at ns3.zuyd.nl. [145.91.10.250] ...took 22 ms
Searching for 56.128.91.145.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 279 ms
Searching for ns3.afrinic.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for ns3.afrinic.net. A record at j.gtld-servers.net. [192.48.79.30] ...took 11 ms
Searching for ns3.afrinic.net. A record at rirns.arin.net. [199.253.249.53] ...took 155 ms
Searching for 56.128.91.145.in-addr.arpa. PTR record at ns3.afrinic.net. [204.61.216.100]
...took 11 msSearching for ns3.afrinic.net. A record at j.gtld-servers.net. [192.48.79.30] ...took 11 ms
Searching for ns3.afrinic.net. A record at rirns.arin.net. [199.253.249.53] ...took 155 ms
Searching for ns2.zuyd.nl. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for ns2.zuyd.nl. A record at ns1.dns.nl. [194.0.28.53] ...took 6 ms
Searching for ns2.zuyd.nl. A record at ns3.zuyd.nl. [145.91.10.250] ...took 23 ms
Searching for 56.128.91.145.in-addr.arpa. PTR record at ns2.zuyd.nl. [145.91.10.251]
...took 23 msSearching for ns2.zuyd.nl. A record at ns1.dns.nl. [194.0.28.53] ...took 6 ms
Searching for ns2.zuyd.nl. A record at ns3.zuyd.nl. [145.91.10.250] ...took 23 ms
SERVFAIL
Searching for 56.128.91.145.in-addr.arpa. PTR record at ns3.zuyd.nl. [145.91.10.250] ...took 22 ms
Nameserver ns3.zuyd.nl. reports: No such host 56.128.91.145.in-addr.arpa.
Total elapsed query time: 567 ms