Whois Lookup — Free Domain Registration Checker
Look up WHOIS registration records for any domain instantly — registrar, creation date, expiry date, nameservers, and status codes. Free, no signup required.
How the Whois Lookup Tool Works
- 1Enter a domain name in the search box — for example
example.com. You can paste a full URL; the tool strips the protocol and path automatically. - 2Click Lookup. The tool identifies the correct WHOIS server for that TLD and queries it directly, returning the raw registration record.
- 3The parsed result is displayed in structured cards: Registration, Important Dates, Technical Details, and Nameservers. An expiry badge shows how many days remain before renewal is needed.
- 4Click Show raw WHOIS output to view the complete unprocessed response from the WHOIS server — useful when you need fields the parser does not surface.
What WHOIS Data Reveals
Every registered domain has a WHOIS record maintained by the registry or registrar for that TLD. The record is the authoritative source for a domain's administrative history: who registered it, through which registrar, when the registration started, when it is due to expire, and what nameservers are directing its traffic.
The registrant fields — name, organisation, email, and address — were historically public. Since the implementation of GDPR in 2018 and similar privacy regulations worldwide, most registrars now redact or proxy personal contact details. The technical fields (registrar, dates, nameservers, status codes) remain publicly accessible regardless of privacy settings.
Tips for Getting the Most from WHOIS
Check expiry before it lapses
If the expiry badge shows under 30 days, the domain owner needs to renew urgently. Expired domains enter a redemption period before becoming available to others — often costing significantly more to recover than a standard renewal.
Use clientTransferProhibited as a baseline
A domain without the "clientTransferProhibited" status code is not locked against transfer. This is not automatically a problem, but it is a flag worth noting for high-value domains — it means a transfer request could be initiated without the lock as a barrier.
Verify nameservers after DNS changes
After switching DNS providers, WHOIS nameserver fields may take 24–48 hours to reflect the new values at the registry level. Cross-check with a DNS lookup tool to confirm both the registry record and live resolution are in sync.
Research a domain before buying
When considering a domain purchase on the secondary market, WHOIS creation date tells you how old the domain is — an important factor for SEO authority. Combined with the nameserver history, it helps assess whether the domain has a clean history.
Fall back to raw output for uncommon TLDs
Some registries use non-standard field names that the parser does not recognise. If a card shows fewer fields than expected, click "Show raw WHOIS output" to read the complete response directly from the authoritative server.
Combine with DNS and SSL lookups
WHOIS confirms registration status. DNS lookup confirms records are resolving correctly. SSL checker confirms the certificate is valid and not expiring. Together, these three tools cover the full technical health check for any domain.
Frequently Asked Questions
What is a WHOIS lookup?
A WHOIS lookup queries the registration database for a domain name and returns publicly available information about it: who registered it (or their privacy proxy), which registrar holds the registration, when it was created and when it expires, which nameservers it uses, and its current registration status. The protocol dates to the early days of the internet and is still the standard mechanism for domain registration transparency.
Why is the registrant information hidden or redacted?
Since GDPR came into effect in 2018, most registrars in Europe and many worldwide now replace registrant name, email, and address fields with "REDACTED FOR PRIVACY" or route contact through privacy proxy services. Domain owners can opt into WHOIS privacy services (often included free by registrars) that publish a proxy contact address instead of personal details. This is normal and does not indicate anything suspicious about the domain.
How accurate is the expiry date shown?
The expiry date is taken directly from the authoritative WHOIS record for that TLD. It reflects the current registration end date as held by the registry. Note that domains in a "redemption period" or "pending delete" state may still show their original expiry date even though the registration has effectively ended — check the status codes for the full picture.
Can I use WHOIS to check if a domain is available to register?
If the WHOIS lookup returns "no record found" or a "404" response, the domain is likely unregistered and available to purchase. However, the absence of a WHOIS record is not a guaranteed signal of availability — some registries do not publish WHOIS data, or the domain may be reserved. Use a domain registrar's availability search for a definitive check before attempting to buy.
What do WHOIS status codes mean?
Status codes come from the Extensible Provisioning Protocol (EPP) standard. Common codes: "clientTransferProhibited" means the registrar has locked the domain against transfers (normal for active domains); "serverDeleteProhibited" and "serverUpdateProhibited" are set by the registry as extra safeguards; "pendingDelete" means the domain has expired and is in a grace period before being released; "redemptionPeriod" is a final hold phase before deletion. Multiple status codes can apply simultaneously.
Which TLDs are supported?
The tool supports over 65 common TLDs directly — including .com, .net, .org, .io, .co, .uk, .de, .fr, .app, .dev, .xyz, .online, .shop, and many others. For TLDs not in the built-in list, the tool automatically queries IANA's WHOIS service to discover the correct server. Most country-code and generic TLDs that publish WHOIS data publicly are supported.
How is this different from a DNS lookup?
A DNS lookup queries the Domain Name System to find DNS records — A, AAAA, MX, TXT, CNAME — which control how a domain is resolved into IP addresses and other technical records. A WHOIS lookup queries the domain registration database to find ownership and administrative information. Both tools are useful for different purposes: use DNS lookup to diagnose resolution issues, and WHOIS lookup to investigate registration details.
Is my search private?
Your query is sent to this site's server, which then queries the WHOIS server on your behalf and returns the result. The domain name you search is transmitted to the WHOIS server. No data is stored after the response is returned to you.