Whois unavailable on 3 April 05.00 to 08.00

The Whois is temporarily unavailable while maintenance is carried out.

Due to maintenance work, the Whois on our website – the tool for checking the availability of a domain name – will be unavailable from 05:00 to 08:00 on Tuesday 3 April. Please accept our apologies for any resulting inconvenience.



  • Tuesday 31 October 2017


    Free technology package for 2,700 primary schools


    Prepare primary school students for the digital future

    Read more
  • Tuesday 26 June 2018

    Internet security

    Hackman reaches a Dutch audience of half a million


    Celebrity hack proves an effective vehicle for raising internet security awareness

    Read more
  • Wednesday 3 October 2018

    SIDN Labs

    New Franco-Dutch research project on automatic classification of domain name abuse


    Compromised vs. maliciously registered

    Read more


Your browser is too old to optimally experience this website. Upgrade your browser to improve your experience.