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.nl domains: SIDN's rules

The main rules and properties of .nl domains at a glance.

Updated on 5 November 2026

SIDN manages the .nl extension. Knippin is connected to SIDN through a registered partner. These are the main points.

At a glance

Topic .nl
Registration period 1 year, then renewed one year at a time
Transfer code 12 characters. Does not expire, but changes after a holder change.
Transfer Usually within an hour. The expiry date stays the same.
Transfer lock Does not exist for .nl
Quarantine 40 days after cancellation or expiry
DNSSEC Supported. See What is DNSSEC?
Nameserver change SIDN processes it within about 30 minutes. After that, providers refresh their cached data.

The holder of a .nl domain may only be changed with their consent. SIDN carries out spot checks and can reverse an unauthorised change. See Changing the holder or contact details.

Your previous provider will not hand over the transfer code?

A registrar is required to provide the transfer code on request. If the previous provider refuses or does not respond, we can start an escalation with SIDN on your behalf. SIDN then gives the old registrar five more working days. After that, SIDN sends the code itself.

For this we need:

  • a safe copy of your ID;
  • for companies: an extract from the Chamber of Commerce (KvK) trade register, no older than 6 months;
  • a statement signed by the holder. For a company, the authorised director signs; if several directors are jointly authorised, they all sign.

You can upload and digitally sign documents under Services → Domains → (your domain) → Documents, or send them in a ticket.

Error messages

Message Meaning
Token incorrect The transfer code does not match what SIDN has on record. Request a new code from the current provider.
Nameserver unknown The nameserver is not yet registered with SIDN, or the zone does not exist yet. See Changing nameservers.

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