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DNS Lookup, Reverse DNS Lookup, Domain Configuration Check and IP Address Calculators

Domain Check Results

Running domain configuration checks for pluimers.com...

General Name Server Tests
TestDetailResult
Name Servers ExistReceived answer from ns1.4delphi.com
The name servers for this domain are:
  ns3pso.wiert.me
  mwgp.xs4all.nl
  ns1.4delphi.com
  ns4pso.wiert.me
  ns5pso.wiert.me
  ns6pso.wiert.me
Pass
Name Server CountYou have 6 name servers.Pass
Name Server GlueServer returned an incorrect number of 'glue' records:
  80.100.143.119 [NL] (ns1.4delphi.com)
Warn
Name Server AuthorityChecking name server authority:
All name servers answered authoritatively.
Pass
SOA RecordChecking SOA serial number on authoritative name servers:
  ns3pso.wiert.me has serial number 2019031101
  mwgp.xs4all.nl has serial number 2019031101
  ns1.4delphi.com has serial number 2019031101
  ns4pso.wiert.me has serial number 2019031101
  ns5pso.wiert.me has serial number 2019031101
  ns6pso.wiert.me has serial number 2019031101
All authoritative name servers return the same serial numbers.
Pass
Use Name ServerUsing name server "mwgp.xs4all.nl" for remainder of tests. To re-run the following tests with a different name server, click on the name server in the list below:
  ns3pso.wiert.me
  mwgp.xs4all.nl
  ns1.4delphi.com
  ns4pso.wiert.me
  ns5pso.wiert.me
  ns6pso.wiert.me
Info

Specific Name Server Tests (using mwgp.xs4all.nl)
TestDetailResult
SOA RecordChecking SOA on name server:
  Serial: 2019031101
  Refresh: 3600 seconds
  Retry: 120 seconds
  Expire: 1209600 seconds
  Minimum (default) TTL: 10800 seconds
  Primary name server: ns1.4delphi.com
  Contact: hostmaster@4delphi.com
Info
SOA Serial NumberThe SOA serial number appears to be in YYYYMMDDnn format. (Which is the recommended format). This would mean that this is revision 01 from 11 Mar 2019.Pass
DNS ContactChecking DNS contact email address is valid.