Searching for 151.1.87.133.in-addr.arpa. PTR record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for 151.1.87.133.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 175 ms
Searching for 151.1.87.133.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 175 ms
Searching for f.dns.jp. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for f.dns.jp. A record at b.dns.jp. [202.12.30.131] ...took 251 ms
Searching for f.dns.jp. A record at nsb.dns.jp. [202.12.30.134] ...took 251 ms
Searching for 151.1.87.133.in-addr.arpa. PTR record at f.dns.jp. [150.100.6.8]
...took 265 msSearching for f.dns.jp. A record at b.dns.jp. [202.12.30.131] ...took 251 ms
Searching for f.dns.jp. A record at nsb.dns.jp. [202.12.30.134] ...took 251 ms
Searching for nameserv.sys.hokudai.ac.jp. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for nameserv.sys.hokudai.ac.jp. A record at b.dns.jp. [202.12.30.131] ...took 251 ms
Searching for nameserv.sys.hokudai.ac.jp. A record at nameserv.sys.hokudai.ac.jp. [133.87.1.11] ...took 277 ms
Searching for 151.1.87.133.in-addr.arpa. PTR record at nameserv.sys.hokudai.ac.jp. [133.87.1.11]
...took 276 msSearching for nameserv.sys.hokudai.ac.jp. A record at b.dns.jp. [202.12.30.131] ...took 251 ms
Searching for nameserv.sys.hokudai.ac.jp. A record at nameserv.sys.hokudai.ac.jp. [133.87.1.11] ...took 277 ms
Nameserver nameserv.sys.hokudai.ac.jp. reports: No such host 151.1.87.133.in-addr.arpa.
Total elapsed query time: 1,786 ms