WHOIS Lookup

Registrar, dates and nameservers of a domain.

Look up who a domain is registered with

A WHOIS lookup tells you where a domain is registered, when it was created, when it expires and which nameservers it uses. This tool uses RDAP, the modern standard that registries now publish instead of the old text-based WHOIS. Your browser finds the right registry from the official IANA list and asks it directly, so the data is current and comes from the source.

What you can learn

  • Registrar: the company the domain was bought through, with its IANA ID and abuse contact.
  • Dates: registration, last update and expiry, with a warning when renewal is close.
  • Status codes: locks, holds and pending actions explained in plain English.
  • Nameservers and DNSSEC: which DNS provider runs the domain and whether its DNS is signed.

Common reasons to run a WHOIS lookup

Buyers check the expiry date and status before making an offer on a domain. Site owners confirm that auto-renew worked, that the registrar lock is on and that the nameservers point to the right DNS host after a migration. Security teams look up the registrar of a phishing domain to send an abuse report. Marketers check the age and registrar of a domain before buying links or a website.

About privacy and redacted data

Personal details such as the registrant's name, address and phone number are usually hidden for privacy. When a company has chosen to publish its organisation name or country, the tool shows it. If you need to reach the owner, the registrar's abuse email and phone are the right channel for legal or security issues. You can also open the raw RDAP record to see every field the registry returned.

Frequently asked questions

What is RDAP and how is it different from WHOIS?

RDAP (Registration Data Access Protocol) is the official replacement for the old WHOIS protocol. It returns the same registration data in a structured, standard format over HTTPS, and since 2025 it is the authoritative source for generic domains such as .com, .net and .org.

Why is the owner name hidden?

Since GDPR most registrars redact personal details of the registrant. You usually see only the registrar, the country or a privacy service. To contact the owner, use the registrar's abuse contact or the contact form the registrar provides.

Why does a country-code domain show no result?

Some country-code registries do not run an RDAP service yet. For those domains the registry's own website usually offers a WHOIS search.

What does clientTransferProhibited mean?

It is a registrar lock that stops the domain from being moved to another registrar without the owner unlocking it first. It is a normal, recommended protection against domain theft.

Is my lookup private?

The lookup runs in your browser and goes straight to the registry's public RDAP server. Nothing is stored by Corenexis.

More website tools

All website tools