
Questions, suggestions or complaints? Let us know.
Do you have a question about your .nl domain name?
Please contact your registrar.
Unsure who your registrar is? Find out by looking up your domain name in the Whois.
Want to know how to register or update a domain name? Go to the .nl domain name menu.
Got another question or complaints?
Drop us a line or give us a call.

SIDN Support
Support Assistant
Our lines are open 8:30am to 5pm Dutch time
Do you have a questionn about SIDN BrandGuard?
Want to know more about ourservice to protect your brand from phishing & reputation damage? Or do you have a question about the dashboard? Then contact our Online brand monitoring specialist.
Drop a line or contact our specialist.

Peter Rotgans
Specialist online brand monitoring
Please contact me if you would like a demo or have any questions.
General contact SIDN BV
Phone:
+31 26 352 55 00 (general)+31 26 352 55 55 (support)
Mailing address:
PO Box 50226802 EA ARNHEMThe Netherlands
Office address:
Meander 5016825 MD ARNHEMThe Netherlands
Parking:
You can park on our site or (for up to 2 hours) in the roadside parking bays outside.
Administrative details
Trade Register: 88772896VAT number: NL864773201B01Bank: RabobankSwift code: RABONL2UIBAN: NL09RABO0145116646
Reporting a security breach

Reporting a security breach
We do all we can to keep our systems secure. But it's always possible that you'll spot a weakness we've missed. If you do, please let us know, so that we can do something about it quickly. Reporting problems you come across is known asvulnerabilitydisclosure.
Doe mee aan het SIDN Panel!

Wil jij bijdragen aan het verbeteren van onze dienstverlening en daarmee ook het internet via .nl veiliger en beter maken? Geef dan maandelijks je mening via het SIDN Panel. Wij waarderen je mening zeer en daarom maak je maandelijks kans op cadeaubonnen.
