Whois Lookup — Check Domain Registration Details Free
A free WHOIS lookup queries the authoritative domain registration database and returns registrar details, important dates, nameservers, and status codes for any domain — instantly, with no account required.
What WHOIS Is and What It Reveals
WHOIS is a query-and-response protocol that retrieves registration records for domain names. When a domain is registered, the registrar is required to submit certain details to the registry for that top-level domain (TLD). Those details are stored in a database that anyone can query. A WHOIS lookup reads that database and returns the record directly.
The record contains several categories of data. Registration details identify the registrar that holds the domain (e.g. Namecheap, GoDaddy, Cloudflare Registrar) along with their IANA ID and a contact URL. Dates show when the domain was first registered, when it was last updated, and — critically — when the registration expires. Nameservers list the DNS servers directing the domain's traffic. Status codes describe the domain's current state at the registry and registrar level. Registrant contact fields (name, organisation, email) are present only if the owner has not opted into privacy protection.
The data comes directly from the authoritative WHOIS server for each TLD, so it is as accurate as the registry itself. There is no scraping or caching involved — every lookup is a live query.
How to Use the Whois Lookup Tool
- Open the Whois Lookup tool. You will see a single search bar.
- Type or paste a domain name — for example
github.comorbbc.co.uk. You can also paste a full URL; the tool strips the protocol and path automatically so you do not need to clean it up first. - Click Lookup. The tool identifies the correct WHOIS server for that TLD, opens a TCP connection to port 43, sends the query, and parses the response. Results typically appear within 2–4 seconds.
- Read the structured result cards: Registration (registrar and IANA ID), Important Dates (creation, last updated, expiry, days remaining), Technical Details (WHOIS server, DNSSEC, status codes), and Nameservers. An expiry badge at the top shows the domain's health at a glance — green for plenty of time, amber for expiring within 30 days, red for expired.
- Click Show raw WHOIS output at the bottom to view the complete unprocessed response from the authoritative server. This is useful for uncommon TLDs whose field names the parser does not recognise, or when you need fields not shown in the summary cards.
When to Use a WHOIS Lookup
| Use case | What to look for | Key fields |
|---|---|---|
| Research a domain before buying | Age, previous registrar, current owner signals | Creation date, registrar, registrant org |
| Monitor domain expiry | Days until renewal is needed; whether it has already lapsed | Expiry date, days remaining badge, status codes |
| Verify ownership or identity | Registrant name and organisation (if not privacy-protected) | Registrant name, registrant org, registrant country |
| Confirm nameserver changes | Whether registry-level nameservers match your DNS provider | Nameservers list |
| Investigate a suspicious domain | Very recent creation date, privacy-protected, mismatched registrar | Creation date, registrar, status codes |
| Check domain lock status | Whether clientTransferProhibited is set before initiating a transfer | Status codes |
Advanced Workflows
Reading WHOIS status codes
Status codes follow the EPP (Extensible Provisioning Protocol) standard and can appear in combinations. The most common ones to know:
- clientTransferProhibited — the registrar has locked the domain against transfers. This is the expected state for any active, well-managed domain. Its absence is a signal worth noting.
- serverTransferProhibited / serverDeleteProhibited — set by the registry itself, usually for domains with legal or regulatory significance (e.g. ccTLD requirements).
- pendingDelete — the domain has expired and passed through the redemption period. It will be released to the general public for registration imminently.
- redemptionPeriod — the domain has expired but the original owner can still recover it, typically at a premium fee set by the registrar.
- clientHold — the registrar has suspended the domain. DNS will not resolve. Often associated with non-payment or abuse reports.
Multiple status codes can be active simultaneously — a domain can be both clientTransferProhibited and clientUpdateProhibited at the same time.
Combining WHOIS with DNS and SSL lookups
WHOIS, DNS, and SSL checks cover different layers of a domain's health. Use them together for a complete picture:
- Whois Lookup — confirms the domain is registered, identifies the registrar, and shows the expiry date and status.
- DNS Lookup — shows the live DNS records (A, MX, TXT, NS) to confirm the domain is pointing where it should. Useful after nameserver changes or when debugging email delivery.
- SSL Certificate Checker — verifies the HTTPS certificate is valid, issued by a trusted authority, and not expiring within a critical window.
Running all three takes under a minute and covers the registration layer, the DNS resolution layer, and the transport security layer — everything needed to confirm a domain is operational and healthy.
Checking a domain before purchasing on the secondary market
When buying a domain through a broker or marketplace, WHOIS data gives you independent verification before completing a transfer. Key things to check:
- Creation date — a domain registered years ago carries more SEO authority potential than a freshly registered one. Marketplaces sometimes sell "aged" domains; WHOIS creation date is the authoritative source.
- Registrar — confirm the domain is with a reputable registrar and not one known for abusive practices. Avoid domains currently held by registrars that have been suspended by ICANN.
- Expiry date — make sure there is enough time remaining to complete the transfer. Domains close to expiry can get complicated; a transfer during the final 45 days before expiry is typically not allowed.
- clientTransferProhibited — if this status is active, the seller needs to unlock the domain before a transfer can proceed. Confirm this is done before payment.
Monitoring nameservers after a DNS migration
After switching DNS providers, the nameserver update propagates in two phases. First, your registrar updates the nameservers in their system. Then the registry (the authoritative body for the TLD) updates its records — this is the value a WHOIS lookup returns. The two phases can have different propagation delays. If WHOIS still shows old nameservers 48 hours after a migration, the registrar may not have submitted the update to the registry yet — contact their support team rather than waiting further.
Common Questions
Why is the registrant information shown as "REDACTED FOR PRIVACY"?
Since GDPR came into effect in 2018, most registrars replaced publicly visible registrant contact details with privacy proxy entries. Domain owners opted into (or were automatically enrolled in) WHOIS privacy services that publish a proxy contact address instead of personal information. This is normal and is not a sign that anything suspicious is going on. The registration is still valid and the domain is still genuinely owned by someone — their identity is simply protected by their registrar's privacy service.
What TLDs does this tool support?
Over 65 TLDs are supported directly, including all major generic TLDs (.com, .net, .org, .info, .biz, .io, .co, .app, .dev, .xyz, .online, .shop, .blog, .design, .tech), a wide range of country-code TLDs (.uk, .de, .fr, .jp, .au, .ca, .us, .eu, .nl, .be, .it, .br, .ru, .cn, .in, .se, .no, .dk, .pl, .ch, and more), and specialised new gTLDs (.ai, .me, .tv, .cc, .cloud, .media, .store). For TLDs outside the built-in list, the tool automatically queries IANA to discover the correct WHOIS server.
How is WHOIS lookup different from a DNS lookup?
A DNS lookup queries the Domain Name System to retrieve DNS records — A records, MX records, TXT records, CNAME records — which control how a domain resolves to IP addresses and handles email. DNS records can be changed by anyone who controls the domain's DNS zone, at any time.
A WHOIS lookup queries the domain registration database to retrieve administrative and ownership information maintained by the registry and registrar. This data changes only when the registration itself changes — ownership transfer, registrar move, expiry, renewal. Think of DNS as the phone book entry and WHOIS as the deed of ownership.
Is the lookup result cached?
No. Every query is a live connection to the authoritative WHOIS server for the domain's TLD. The result you see is the current record at the time of the query. There is no caching layer. This means if a registrar just updated the nameservers or renewed a domain, the result will reflect that immediately.
Is my query private?
The domain name you enter is sent to this site's server, which opens a direct TCP connection to the WHOIS server on your behalf and returns the response. The domain name is transmitted to the WHOIS server as part of the query. No data is stored after the response is returned to your browser.
Free Whois Lookup — Instant Domain Registration Records
Enter any domain name and get registrar, creation date, expiry, nameservers, and status codes in seconds. No signup, no install, runs from your browser.
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