Look up .se and .nu domains
For .se and .nu, the tool queries Internetstiftelsen's WHOIS. Fields include registrar, dates, status, nameservers and a registrant contact ID. The tool does not display the registrant's name.
Who owns a domain?
Enter a domain name to open our WHOIS tool. You can view registration information, but it may not identify the person behind the domain.
Individual or organization?
Internetstiftelsen's web search may display registrant details for organizations. Individuals' details are protected. A WHOIS contact ID is not a public name or email address.
Search at InternetstiftelsenOther extensions and RDAP
For most other extensions, the tool uses RDAP and falls back to WHOIS when needed. Available fields vary by registry. Personal data may be redacted for privacy and GDPR compliance; our tool does not display registrant contacts for these lookups.
If the domain is already taken
A lookup provides registration information, not a right to buy the name. Try another name or follow domains expected to be released. Always check availability again before ordering.
Frequently asked questions
Can I see who owns a .se domain?
Our WHOIS tool shows a contact ID, not the registrant's name. Internetstiftelsen's web search may show details for organizations, while individuals' details are protected.
What is the difference between WHOIS and RDAP?
WHOIS and RDAP provide registration information. RDAP returns structured responses. The tool uses RDAP for most extensions with WHOIS as a fallback, and queries Internetstiftelsen's WHOIS directly for .se and .nu.
Do missing details mean a domain is available?
No. Redacted data or a failed lookup does not prove that a domain is available. Run an availability search before attempting to register the name.
How do I run a WHOIS lookup on a domain?
Enter the domain name in the form on this page to open gateway.se's free WHOIS tool with the lookup. The result shows registration information such as registrar, dates, status and nameservers. The lookup requires no account.