WHOIS domain lookup.

View complete WHOIS and RDAP registration data for any domain — registrar, dates, nameservers, status flags, and more — instantly live from the registry.

What is WHOIS?

Everything you need to know about domain registration data.

WHOIS is a public query protocol that reveals who registered a domain, when it was registered, and when it expires. Our tool queries the modern RDAP standard for structured, reliable results.

Domain Lookup Explained

What is a WHOIS Lookup and why is it important?

When you register a domain, your registrar stores a record with the domain's creation date, expiration date, registrar name, nameservers, and status code. WHOIS is the protocol that makes these records publicly queryable.

Knowing this data helps you check if a domain is available, verify its ownership history, estimate its age for SEO, troubleshoot DNS issues, or detect impersonation attempts. Our tool shows you all this in seconds — no terminal commands, no third-party databases.

  • Check registration age to determine domain authority
  • Identify expired or expiring domains before they are dropped
  • Check for suspicious websites and phishing attempts
RDAP — Modern Standard

Why we use RDAP instead of legacy WHOIS

WHOIS (1982) Unstructured Plain over TCP Returns text — each registrar uses a different format, making automated parsing unreliable. RDAP (Registration Data Access Protocol) is the ICANN-mandated replacement: structured JSON over HTTPS with consistent, authenticated fields and built-in access control, guaranteed by every registry since 2019.

  • Machine-readable JSON over HTTPS — parse it directly in any language
  • IETF standardized (RFC 7480–7484) and ICANN mandated — not a proprietary system
  • All 1,200+ TLDs via the official IANA bootstrap —
  • Uniform field names at every registrar — not every registrar requires parsing logic
  • For structured error responses and privacy-compliant data Built-in access control
What you get

Each field from the official registry record

Each lookup returns all available RDAP data, displayed in a clear, structured format that you can understand at a glance.

Registrar

The company that sold or managed the domain — GoDaddy, Namecheap, MarkMonitor, Cloudflare, and thousands of others.

Registration date

When the domain was first created. Older domains rank better in search engines and are more trusted.

Expiration Date

When the registration expires, a countdown shows how many days are left until it is available.

Status Flags

EPP status codes such as clientDeleteProhibited, serverTransferProhibited, and active show the lock status.

Nameservers

The authoritative DNS servers for the domain. Shows the hosting provider, CDN, or custom DNS infrastructure being used.

Raw RDAP JSON

Full machine-readable RDAP response directly from the registry — extendable on demand for developers and power users.

How it works

Domain WHOIS lookup in three steps

1

Enter a domain

Type any fully qualified domain name, such as example.com, into the search box — or click on one of the example chips to try it immediately.

2

We query the registry

Your request is routed through the official RDAP bootstrap to the correct registry server—VeriSign for .com, PIR for .org, etc.

3

Read the result

Registrar, dates, status flags, nameservers, and the full raw RDAP record are immediately displayed in a clean, structured layout.

Have a question?

Frequently asked questions about WHOIS

Everything you need to know about domain WHOIS lookups, RDAP, and registration data.

What is the difference between WHOIS and RDAP?
WHOIS is the original protocol from the 1980s that queries domain registration data over plain-text TCP on port 43. RDAP (Registration Data Access Protocol) is its official replacement—standardized by the IETF (RFC 7480–7484) and mandated by ICANN for all gTLDs since 2019. RDAP uses HTTPS and returns structured JSON, making it more reliable, secure, and easier to parse. Our tool uses RDAP exclusively for best results.
Which domains can I look up?
You can view any domain whose TLD has a public RDAP endpoint registered with the IANA Bootstrap Registry. This includes all major generic TLDs (.com, .net, .org, .info, .biz), new gTLDs (.app, .dev, .io, .ai, .shop, .tech, and hundreds more), and most country-code TLDs. In total, over 1,200 TLD entries are supported.
Why does the WHOIS lookup show “Not Available” for some fields?
Some registries or registrars choose not to include certain fields in their RDAP responses. For example, many ccTLD registries (country-code domains) only display minimal data, such as domain status and nameservers, while omitting registrar names or dates. Furthermore, due to GDPR and privacy regulations, many registries have removed registrant contact information from public responses. Our tool displays only what the registry provides.
What does an EPP status code mean?
EPP (Extensible Provisioning Protocol) status codes indicate a domain's current status and lock level. Common codes include: Active (the domain is operating normally), ClientTransferProhibited (the registrar is preventing transfers), ServerDeleteProhibited (the registry is preventing deletions), and ClientHold (the domain is suspended and will not recover). Codes starting with "Client" are set by the registrar; codes with "Server" are set by the registry itself.
Is the data live or cached?
Each lookup queries the registry in real time. We do not cache results. The data you see reflects the current state of the RDAP record at the time you perform the search. Keep in mind that there may be a slight propagation delay within the registry itself after recent registrations or updates.
Can I use this tool to find out who owns a domain?
Due to GDPR and privacy regulations, most registries no longer include registrants' personal information (name, email, address) in public WHOIS/RDAP responses. However, you can usually see the registrar name, which tells you where the domain was purchased, and you can contact the registrar with a valid inquiry. Some domains still show contact information if the registrant hasn't turned on privacy protection.
How is this different from a domain checker tool?
Domain Checker tests whether a domain is available for registration on multiple TLDs using a DNS query — it answers “Can I buy it?”. WHOIS Lookup retrieves the complete registration record for a domain — it answers “Who registered it, and when will it expire?”. They are complementary tools for different stages of domain research.
Is this tool free to use?
Yes — Viewing WHOIS data is completely free. No account required, no signup, and no hidden fees. Query as many domains as you like.

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