Searching for 117.121.73.91.in-addr.arpa. PTR record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 11 ms
Searching for 117.121.73.91.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 267 ms
SERVFAIL
Searching for 117.121.73.91.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 267 ms
Searching for rirns.arin.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for rirns.arin.net. A record at c.gtld-servers.net. [192.26.92.30] ...took 24 ms
Searching for rirns.arin.net. A record at u.arin.net. [204.61.216.50] ...took 11 ms
Searching for 117.121.73.91.in-addr.arpa. PTR record at rirns.arin.net. [199.253.249.53]
...took 172 msSearching for rirns.arin.net. A record at c.gtld-servers.net. [192.26.92.30] ...took 24 ms
Searching for rirns.arin.net. A record at u.arin.net. [204.61.216.50] ...took 11 ms
Searching for ns.ripe.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for ns.ripe.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 23 ms
Searching for ns.ripe.net. A record at ns3.lacnic.net. [200.3.13.14] ...took 193 ms
Searching for 117.121.73.91.in-addr.arpa. PTR record at ns.ripe.net. [193.0.9.6]
...took 12 msSearching for ns.ripe.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 23 ms
Searching for ns.ripe.net. A record at ns3.lacnic.net. [200.3.13.14] ...took 193 ms
SERVFAIL
Searching for dxbns2.duhosting.ae. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for dxbns2.duhosting.ae. A record at ns4.apnic.net. [202.12.31.53] ...took 16 ms
Searching for dxbns2.duhosting.ae. A record at dxbns2.duhosting.ae. [80.227.2.3] ...took 133 ms
Searching for 117.121.73.91.in-addr.arpa. PTR record at dxbns2.duhosting.ae. [80.227.2.3]
...took 132 msSearching for dxbns2.duhosting.ae. A record at ns4.apnic.net. [202.12.31.53] ...took 16 ms
Searching for dxbns2.duhosting.ae. A record at dxbns2.duhosting.ae. [80.227.2.3] ...took 133 ms
Nameserver dxbns2.duhosting.ae. reports: No such host 117.121.73.91.in-addr.arpa.
Total elapsed query time: 1,031 ms