Searching for 42.21.201.172.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for 42.21.201.172.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 90 ms
Searching for 42.21.201.172.in-addr.arpa. PTR record at ns4-04.azure-dns.info. [208.84.5.4] ...took 6 ms
Searching for 42.21.201.172.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 90 ms
Searching for r.arin.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for r.arin.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 34 ms
Searching for r.arin.net. A record at u.arin.net. [204.61.216.50] ...took 6 ms
Searching for 42.21.201.172.in-addr.arpa. PTR record at r.arin.net. [199.180.180.63]
...took 90 msSearching for r.arin.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 34 ms
Searching for r.arin.net. A record at u.arin.net. [204.61.216.50] ...took 6 ms
Searching for ns4-07.azure-dns.info. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for ns4-07.azure-dns.info. A record at b0.info.afilias-nst.org. [199.254.48.1] ...took 12 ms
Searching for ns4-07.azure-dns.info. A record at ns4-02.azure-dns.info. [208.84.5.2] ...took 7 ms
Searching for 42.21.201.172.in-addr.arpa. PTR record at ns4-07.azure-dns.info. [208.84.5.7]
...took 6 msSearching for ns4-07.azure-dns.info. A record at b0.info.afilias-nst.org. [199.254.48.1] ...took 12 ms
Searching for ns4-07.azure-dns.info. A record at ns4-02.azure-dns.info. [208.84.5.2] ...took 7 ms
Searching for 42.21.201.172.in-addr.arpa. PTR record at ns4-04.azure-dns.info. [208.84.5.4] ...took 6 ms
Nameserver ns4-04.azure-dns.info. reports: No such host 42.21.201.172.in-addr.arpa.
Total elapsed query time: 295 ms