Who owns this domain?

WHOIS is a public database of domain registrations. It shows the registrar, registrant name and contact details (when not redacted), registration and expiry dates, nameservers, and domain status codes like "clientTransferProhibited," which indicate whether the domain can be transferred. Use it to verify ownership before buying a domain.

Enter the domain name into the whois checker above. You will get the registrant name and organization whenever the registry publishes them. If the details are redacted, check for administrative or technical contact emails, or use the registrar's contact form listed in the results to reach the owner.

Since GDPR took effect in 2018, most registries redact personal contact details from public WHOIS by default. Registrars also sell privacy protection services that mask the owner's details. Nomlen flags redacted fields and explains which registry policy caused them, so you know it is a privacy measure rather than a tool error.

Yes. There is no signup, no daily cap on individual lookups, and no watermark on results. For large lists of domains, use the bulk whois checker, which processes them through a throttled queue to respect registry rate limits.

Registrant details are entered by the domain owner at registration, so outdated information usually comes from the owner rather than the lookup itself. Contact the registrar shown in the results to report inaccuracies — ICANN requires registrars to investigate and correct invalid WHOIS data.