What is a WHOIS lookup?

A WHOIS lookup is a free query that retrieves public registration data about a domain name, including the domain owner (registrant), registrar, registration date, expiry date, name servers, and domain status codes. It is used to check domain ownership, verify domain age, and research domain availability.

How do I check who owns a domain name?

Enter any domain name into RunHost's free WHOIS lookup tool and click Lookup. You'll instantly see the registrant (owner) name or organization, the registrar, registration and expiry dates, name servers, and domain status. Note: domains with WHOIS privacy protection will show the registrar's proxy details instead of personal info.

Is the WHOIS lookup tool free to use?

Yes, RunHost's WHOIS lookup is completely free with no registration required. Simply enter any domain name and get instant WHOIS results including owner, registrar, dates, and name servers.

What information does a WHOIS lookup show?

A WHOIS lookup shows: domain registrant name and organization, registrar name, domain registration date, domain expiry/renewal date, last updated date, name servers (NS records), domain status codes (active, pending delete, etc.), and sometimes contact email and phone (if not hidden by WHOIS privacy).

Why is WHOIS information hidden or redacted?

Since GDPR (2018) and ICANN's Temporary Specification, most registrars now offer WHOIS privacy protection by default, which replaces personal contact details with the registrar's proxy information. This protects domain owners from spam and identity exposure. The domain's technical details (registration dates, name servers, status) remain visible.

How do I find out if a domain name is available?

Run a WHOIS lookup on the domain. If the result shows 'domain not found' or 'available', the domain is unregistered and you can register it. You can register domains directly through RunHost at competitive prices with free WHOIS privacy protection included.

What does 'registrar' mean in a WHOIS lookup?

The registrar is the accredited company that registered the domain on behalf of the owner. Examples include RunHost, GoDaddy, Namecheap, and Cloudflare. The registrar manages the domain's registration, renewal, and DNS settings. If a domain is registered with RunHost, its WHOIS will show RunHost as the registrar.

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WHOIS domain lookup.

Get detailed information about any domain name — registration details, nameservers and contact information.

Domain Lookup

Enter a domain name to get its WHOIS information

What Is a WHOIS Domain Lookup & How Does It Work?

A WHOIS domain lookup queries the official ICANN-accredited domain registry and registrar databases (via WHOIS and RDAP protocols) to retrieve public registration records for any domain name, including .com, .net, .org, .io, .ai, and 400+ country-code and generic top-level domains (gTLDs).

With RunHost's free instant WHOIS checker, you can verify whether a domain name is available for registration, inspect its authoritative DNS nameservers, check DNSSEC signing status, and view creation, last-updated, and expiration dates in real time.

Domain Availability & Status

Check EPP domain status codes such as clientTransferProhibited, ok, redemptionPeriod, or pendingDelete to know if a domain is active, locked, or about to drop.

Registrar & Nameserver Records

Identify the sponsoring registrar, IANA ID, authoritative DNS nameservers, and DNSSEC cryptographic status for troubleshooting DNS and domain transfers.

Free WHOIS Privacy Protection

When you register or transfer a domain with RunHost Domain Registration, GDPR-compliant WHOIS privacy redaction is included free to shield your personal email, phone, and address from spammers.

WHOIS domain lookup.

What Is a WHOIS Domain Lookup & How Does It Work?

Domain Availability & Status

Registrar & Nameserver Records

Free WHOIS Privacy Protection

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