Complaining about us

Unhappy about something we've done, or failed to do? Please let us know, so that we can put it right.

Contact us about the issue

Call +31 26 352 5555 or mail support@sidn.nl. 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:

Rebecca_285x285

Registratie & Service

Manager Registration & Services

+31 26 352 55 55

support@sidn.nl

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.

  • Monday 29 October 2018

    SIDN Labs

    Towards automated, MUD-based DDoS protection

    Thumb-IoT-mainboard

    Reduce the risk of insecure IoT devices

    Read more
  • Thursday 18 April 2019

    DNSSEC

    Just four weeks until the root KSK rollover: time to check your DNSSEC trust anchors!

    Thumb-secure

    Check your DNSSEC trust anchors!

    Read more
  • Tuesday 27 February 2018

    .nl domain name

    A tale of two TLDs

    Thumb-flags-Canada-and-Holland

    Marketing the .ca and .nl domains

    Read more

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