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Call +31 26 352 5555 or mail Otherwise, use the form at the bottom of the page. It may be useful to ask for the same person you dealt with before. If you have a solution in mind, please mention it. We'll do our best to get back to you by the next working day.

Get more info about various types of problem:


Registratie & Service

Manager Registration & Services

+31 26 352 55 55

If you have a question, complain or suggestion, please contact one of our support employees. You can contact us from 08.00 tot 18.00 hrs.

  • Friday 27 September 2019

    SIDN Labs

    How to choose DNS TTL values


    Choosing DNS time-to-live (TTL) values can feel like the lottery. But new research provides greater insight into what values work best for different applications.

    Read more
  • Thursday 13 December 2018

    .nl domain name

    Good prospects for the internet economy in 2019


    Growth figures and business forecasts are positive

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  • Tuesday 19 December 2017

    .nl domain name

    "We have to keep SIDN on their toes"


    Registrars' Association elects new Chair

    Read more


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