WHOIS Lookup
Get domain registration and owner information
WHOIS Lookup tool
WHOIS Lookup: key facts
- What it does
- Get domain registration and owner information
- Category
- Network Tools
- Cost
- Free, with no account, sign-up, or install.
- Your data
- The domain name you enter is sent to whoisjson.com, which returns its registration record.
- Last reviewed
- . Report an incorrect result.
About the WHOIS Lookup
WHOIS records hold the public registration details of a domain — who the registrar is, when it was created, and crucially, when it expires. This WHOIS Lookup retrieves that information for any domain and lays it out clearly, including a countdown to expiry.
Investors checking a domain's age and history, businesses monitoring their own renewal dates, and anyone researching who is behind a site use it for a quick, readable record. It returns the registrar, the creation, update, and expiry dates, the domain's status flags, the name servers, and any available registrant organization and country.
The data comes from a WHOIS API service, so the domain you look up is sent to that provider; note also that privacy-protection services now mask many registrant contact details.
How to use it
- Enter the domain name you want to look up.
- Click Lookup WHOIS.
- Read the registrar, key dates, status flags, and name servers.
- Note the days-until-expiry countdown, and copy the record if you need it.
Registration records via a WHOIS API
The domain you enter is sent to whoisjson.com, which queries the relevant registry and returns the registration record. WHOIS is the long-standing directory of who registered a domain, through which registrar, and when — and it is queried over its own protocol, which a browser cannot speak directly, hence the API.
The fields that survive redaction are usually the useful ones: the registrar, the creation, expiry, and last-updated dates, the nameservers, and the domain's status codes. Those status codes are worth learning to read, since they indicate whether a domain is locked against transfer, pending deletion, or in a redemption period after expiry.
Registries differ substantially in what they publish, so the completeness of a record depends heavily on the top-level domain.
- Creation date establishes how long a domain has existed, which is a weak but real trust signal.
- Expiry date reveals whether a domain is about to lapse.
- Status codes such as clientTransferProhibited indicate a registrar lock.
Why use this version
- It presents the WHOIS record in a clean, readable layout rather than the raw, cryptic text a registry returns.
- A color-coded days-until-expiry figure makes it easy to track when a domain (yours or one you are watching) lapses.
- It surfaces status flags and name servers, useful for spotting transfer locks or where a domain is hosted.
- It is free with no sign-up; the lookup is resolved through a WHOIS API service, so the domain is sent there.
Why contact details are usually hidden
WHOIS used to publish registrants' names, addresses, and phone numbers openly, which made it a spam and harassment vector. The GDPR effectively ended that practice for individuals in 2018, and most registrars now apply privacy or proxy services by default, so contact fields typically show the registrar's own details or a forwarding address.
That has largely broken WHOIS as a way of identifying who is behind a domain. Legitimate access — for law enforcement, trademark disputes, or abuse reporting — now runs through the registrar's abuse contact or formal disclosure processes rather than a public lookup. Note that some country-code registries never published personal details in the first place, and rate limiting is common.
The records remain genuinely useful for infrastructure work: confirming a domain is registered, checking when it expires, seeing which registrar holds it, and verifying nameserver delegation. Where WHOIS is being replaced, the successor is RDAP, a structured JSON protocol with proper access controls, which registries are progressively adopting.
Frequently Asked Questions
What information is in a WHOIS record?
Typically the registrar, the dates a domain was created, last updated, and expires, its status codes, the name servers, and — where not hidden by privacy protection — the registrant's organization and country. It is the public registration footprint of a domain.
Why are the registrant's details hidden?
Many registrars now offer WHOIS privacy (and regulations like GDPR restrict publishing personal data), so contact details are often replaced with a privacy service or omitted. You will usually still see the registrar, dates, and status even when personal details are masked.
What do the domain status codes mean?
Status flags like "clientTransferProhibited" describe locks and states set on the domain — often protective measures preventing unauthorized transfers or deletions. They are normal for active, well-managed domains.
How is WHOIS different from a DNS lookup?
WHOIS tells you about a domain's registration — who owns it and when it expires. A DNS lookup tells you how the domain resolves — which servers it points to. They answer different questions, which is why both tools exist.
