Look up WHOIS records for any domain — registrar, registration date, expiry date, domain age, nameservers, and (when not privacy-protected) the registered owner. Free, instant, unlimited, and works on every public TLD.
Our WHOIS probes operate globally, with a strong emphasis on domain registration data originating from or pointing to entities within the United States.
WHOIS is one of the oldest services on the internet and it still works the way it did in the 1980s: a plain-text query to a server that holds registration data. Your lookup starts at IANA, which knows which registry runs each top-level domain — Verisign for .com and .net, PIR for .org, Nominet for .uk.
Registrar is the company that sold and manages the domain — the party to contact for transfers, disputes or recovery. Creation date is the domain's true age and it does not reset when a domain changes hands, which makes it the honest signal in a domain sale. Updated date reflects the last change to the record, often a renewal or a nameserver edit.
| Field | Meaning |
|---|---|
| Registrar | Company that sold the domain |
| Created | First registration date (= domain age start) |
| Updated | Last modification of the WHOIS record |
| Expires | When the registration lapses if not renewed |
| Status | EPP status codes (clientTransferProhibited, etc.) |
| Nameservers | DNS provider currently serving the domain |
| Registrant | Owner — often masked by WHOIS privacy |
Developers and project managers can use the WHOIS lookup to verify if a preferred domain name is available before starting a new project. It helps avoid conflicts and ensures that development efforts are aligned with an accessible domain, streamlining the initial setup phase.
SEO specialists utilize domain WHOIS data to assess competitor domain age, understand their registration history, and identify their registrar. This information contributes to broader competitive intelligence and informs backlink strategies and domain acquisition decisions.
Brands and legal teams frequently perform WHOIS lookups to identify potential cybersquatting or trademark infringement. By checking who owns a questionable domain, they can take appropriate legal action to protect their intellectual property rights.
Individuals and businesses looking to purchase an existing domain can use the WHOIS tool for due diligence. They can verify the current owner, check the domain's registration history, and confirm the expiration date to ensure a legitimate and smooth transfer process.
Yes — free, unlimited, and works on every public TLD that exposes WHOIS data.
DNS lookup reads live records served by nameservers (A, MX, TXT, etc.). WHOIS reads registration metadata held by the registrar (owner, expiry, registrar).
A WHOIS lookup is a query tool that retrieves public registration information for a domain name or IP address. It's important for transparency on the internet, allowing users to identify domain owners, check registration dates, and verify registrars. This information is crucial for cybersecurity, dispute resolution, and ensuring accountability across the web's vast infrastructure.
A typical WHOIS lookup result includes the domain name, registrar, registration dates (creation, update, expiration), nameservers, and often the contact information for the registrant, administrative, and technical contacts. However, personal contact details may be redacted due to privacy regulations like GDPR, showing a privacy service instead.
A WHOIS lookup for an IP address helps identify the organization to which the IP block is allocated. This is crucial for network administrators to troubleshoot connectivity issues, investigate sources of network abuse or cyberattacks, and understand the geographic location or registered entity associated with a particular internet protocol address.
Run a WHOIS lookup above. If WHOIS privacy is enabled you will see the proxy contact; otherwise the real registrant name, email, and address appear.
A WHOIS lookup is the fastest way to verify who registered a domain, when it expires and which registrar controls it. Use it to vet sellers before a domain purchase, audit link partners, track your own renewal dates, and confirm nameserver delegation alongside the DNS lookup tool.