WHOIS Lookup – Find Domain Registration Details

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Look up domain registration details including ownership, registrar, creation date, expiry, and nameservers. Find out who owns any domain.

Free Domain Registration Lookup

Owner Details
Expiry Date
Domain Age
100% Free

Enter a domain name to look up registration details

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We'll show you owner info, dates, nameservers, and more

Find Domain Ownership, Age & Registration Details Instantly

WHOIS lookup is a protocol that queries public databases containing domain registration records. Think of it as property records for the internet—every registered domain has a WHOIS record showing who registered it, when, and where. Our tool retrieves this information and automatically calculates domain age, explains status codes, and detects privacy protection.

What You'll Discover

👤
Ownership Details Registrant name, organization, email, and contact info (when not GDPR-protected)
📅
Registration Dates Creation date, last update, expiration date, and calculated domain age
🏢
Registrar Information Where the domain is registered, IANA ID, and registrar URL
🔧
Technical Data Nameservers, DNSSEC status, and domain status codes with explanations

Can Find

  • Domain registrar and where to transfer
  • Registration and expiry dates
  • Domain age (calculated automatically)
  • Nameservers used by the domain
  • Domain status codes with explanations
  • DNSSEC security status

Cannot Find

  • GDPR-protected personal information
  • Website hosting provider (use DNS Lookup)
  • IP addresses (use DNS Lookup or IP Lookup)
  • Website traffic or analytics data
  • Historical ownership changes

How to Use WHOIS Lookup

Find domain registration information in seconds with these simple steps.

1

Enter Domain Name

Type the domain name you want to check (e.g., google.com, example.org). No need to include http://, https://, or www—we automatically clean the input.

2

Click Lookup

Press the Lookup button to query WHOIS servers. We'll retrieve registration data from the authoritative registry for that domain's TLD.

3

View Owner Details

See registrant name, organization, and contact info if available. Note that GDPR-protected domains will show 'REDACTED FOR PRIVACY' instead.

4

Check Important Dates

Review registration date, last update, and expiration date. We automatically calculate the domain age and show days until expiry with color-coded warnings.

5

Review Technical Details

Check nameservers, status codes (with explanations), and DNSSEC status. Export results as JSON, CSV, or text for your records.

Understanding Your WHOIS Results

Each field in your WHOIS lookup reveals important information about the domain's registration and status.

Registrant

The person or organization that registered the domain. Due to GDPR privacy laws (since 2018), personal registrant data is often redacted. You may see 'REDACTED FOR PRIVACY' or a privacy proxy service instead of actual names. Business domains sometimes display organization details.

Example: REDACTED FOR PRIVACY / Example Corporation

Registrar

The company where the domain is registered (like GoDaddy, Namecheap, or Cloudflare). This tells you who manages the domain's registration and where the owner would go to renew or transfer it. The IANA ID is the registrar's official identifier.

Example: GoDaddy.com, LLC (IANA ID: 146)

Created Date

The original registration date when someone first registered this domain. Older domains generally have more trust and authority. This date never changes even if ownership transfers.

Example: 1997-09-15

Expiry Date

When the domain registration expires. If not renewed before this date, the domain enters a grace period and eventually becomes available for others to register. We show days until expiry with color-coded warnings.

Example: 2025-09-14 (208 days remaining)

Domain Age

How long the domain has been registered, calculated automatically from the creation date. Domain age is a trust signal—older domains are generally considered more established by search engines, users, and security systems.

Example: 27 years, 4 months

Nameservers

The DNS servers that handle this domain's DNS records. These tell you which DNS provider or hosting company manages the domain's technical infrastructure. Common nameservers include Cloudflare, AWS Route 53, or the registrar's default servers.

Example: ns1.google.com, ns2.google.com

Status Codes

EPP (Extensible Provisioning Protocol) codes indicating the domain's current state. 'clientTransferProhibited' means transfers are locked, 'ok' means normal operation, 'pendingDelete' means it's being deleted. We translate each code to plain English.

Example: clientTransferProhibited (Transfer locked by registrar)

DNSSEC

DNS Security Extensions status. If 'signed' or enabled, the domain has cryptographic protection against DNS spoofing attacks. This is an optional but recommended security feature that validates DNS responses haven't been tampered with.

Example: Signed (enabled)

Why Choose Our WHOIS Lookup Tool

More than just a basic lookup—get domain age calculation, status code explanations, and privacy detection.

Domain Ownership

See who registered the domain, including organization name and contact details (when not privacy-protected).

Expiry & Renewal Dates

Check when a domain expires and when it was last renewed. Know if a domain might become available soon.

Domain Age Calculation

See exactly how old a domain is with years, months, and days. Domain age is a trust signal used by search engines and users alike.

Registrar Information

Identify which registrar manages the domain, including IANA ID and URL. Essential for transfers or contacting support.

Nameserver Details

View all nameservers for the domain. Identify which DNS provider or hosting company is used.

Status Code Explanations

Understand domain status like clientTransferProhibited, serverHold, or pendingDelete—we translate cryptic EPP codes to plain English.

When to Use WHOIS Lookup

From buying domains to investigating fraud, WHOIS lookup serves many practical purposes.

Domain Purchase Research

Before buying a domain, check if it's truly available, when it might expire, its registration history, and who currently owns it for potential acquisition.

Brand Protection

Monitor domains similar to your brand. Identify potential cybersquatters, trademark infringers, or phishing sites impersonating your business.

Finding Domain Owners

Locate contact information for domain owners you want to reach for business proposals, partnership opportunities, or domain purchases.

Fraud Investigation

Investigate suspicious websites by checking their registration age, owner details, and whether information matches their claims. New domains are red flags.

SEO & Competitor Analysis

Research competitor domain ages and registrars as part of competitive analysis. Identify their DNS providers and technical infrastructure.

Domain Portfolio Management

Track expiration dates across your domain portfolio. Set reminders before domains expire to prevent accidental lapses and loss of valuable domains.

How WHOIS Lookup Works

Understanding the technical process behind domain registration lookups.

The WHOIS Protocol

WHOIS is a query and response protocol dating back to 1982 that accesses domain registration databases. When you register a domain, your information is stored in the registry's WHOIS database. Each TLD (like .com, .net, .uk) has its own registry that maintains these records—Verisign for .com, Public Interest Registry for .org, and so on. Our tool queries the appropriate registry or registrar WHOIS servers and parses the raw text response into a structured, readable format.

Registry vs Registrar Data

There are two levels of WHOIS data. Registry WHOIS (thin WHOIS) contains basic information: domain name, registrar, nameservers, status codes, and dates. Registrar WHOIS (thick WHOIS) adds contact details for the registrant, admin, and technical contacts. We query both sources when available to provide the most complete picture. Some TLDs like .com use thin registry WHOIS, while others like .uk use thick registry WHOIS.

GDPR's Impact on WHOIS

Since May 2018, GDPR regulations transformed WHOIS data availability. Personal data (names, emails, addresses, phone numbers) is now protected by default for EU registrants and often extended to all registrants by registrars. ICANN developed a 'Temporary Specification' allowing registrars to redact personal data. You'll see 'REDACTED FOR PRIVACY' or privacy proxy services instead of actual contact details for most domains now.

Domain Status Codes (EPP)

Extensible Provisioning Protocol (EPP) status codes indicate domain states. Client-level codes (clientTransferProhibited, clientDeleteProhibited) are set by registrars at the owner's request. Server-level codes (serverHold, serverTransferProhibited) are set by registries for policy enforcement. A domain with 'ok' or 'active' status has no restrictions. Understanding these codes is crucial when troubleshooting domain issues or planning transfers.

Our Processing Approach

We use the python-whois library to query authoritative WHOIS servers with a 15-second timeout. Results are cached for 24 hours since WHOIS data rarely changes frequently. We parse multiple date formats from different registries, detect privacy protection using keyword matching, automatically calculate domain age, and translate EPP status codes to plain English. Rate limiting prevents abuse while ensuring fair access for all users.

Technical Specifications

Data Source
Registry and registrar WHOIS servers
Supported TLDs
.com, .net, .org, .info, .biz, .co, major ccTLDs, and more
Cache Duration
24 hours
Response Time
1-3 seconds typical
Query Timeout
15 seconds
Rate Limit
60 lookups per hour (free)
Privacy Detection
Automatic GDPR/proxy detection
Export Formats
JSON, CSV, Plain Text
API Access
Available via REST API

Frequently Asked Questions

What is WHOIS lookup?

WHOIS is a public database that stores information about registered domain names. A WHOIS lookup queries this database to retrieve details like who registered the domain, when it was registered, when it expires, and which nameservers it uses. It's like looking up property records for internet domains. The WHOIS protocol has been in use since 1982, predating the World Wide Web itself.

Why do I see 'REDACTED' for owner information?

Since GDPR (General Data Protection Regulation) came into effect in May 2018, most domain registrars hide personal information in WHOIS records to protect privacy. You'll often see 'REDACTED FOR PRIVACY' or the registrar's privacy service instead of actual owner details. This is normal and now affects most .com, .net, .org, and other popular domains. Business domains may still show organization details.

How accurate is WHOIS data?

WHOIS data comes directly from domain registries and registrars, so technical information like registration dates, expiry dates, nameservers, and status codes are highly accurate. However, registrant contact information may be outdated if the owner hasn't updated it, intentionally false (which violates ICANN rules), or redacted for privacy protection.

Can I find out if a domain is available for registration?

Yes! If our WHOIS lookup returns no registration data, the domain is likely available for registration. However, we recommend double-checking with your preferred registrar, as some TLDs have restrictions, premium pricing, or reserved domains that won't show in WHOIS but still can't be registered.

What do domain status codes mean?

Status codes (EPP codes) indicate the domain's current state. 'clientTransferProhibited' means transfers are locked by the registrar, 'serverHold' means the domain is suspended by the registry (usually for policy violations), 'pendingDelete' means it's scheduled for deletion, and 'ok' or 'active' means normal operation with no restrictions. Our tool explains each status code in plain English.

Why is domain age important?

Domain age is a trust signal in multiple contexts. Search engines may consider older domains more established (though Google says age itself isn't a direct ranking factor). Security systems use domain age to detect phishing—newly registered domains are more suspicious. Businesses and consumers perceive older domains as more credible. Domain investors also value aged domains for their perceived authority.

How can I contact a domain owner if information is redacted?

For privacy-protected domains, many registrars offer forwarding services where messages sent to the proxy email address are forwarded to the actual owner. Look for an email like 'owner@privacyproxy.com' in the WHOIS results. You can also try the 'Contact Form' links some registrars provide. For legal matters, you may need to submit a formal request through the registrar's abuse department.

What TLDs (domain extensions) does this tool support?

We support most common TLDs including .com, .net, .org, .info, .biz, .co, and many country-code TLDs like .uk, .de, .ca, .au. Some newer gTLDs and restricted TLDs may have limited WHOIS information or use different data formats. If you get an error or incomplete results for a specific TLD, try our DNS Lookup tool to at least verify the domain's technical records.

What is DNSSEC and why does it matter?

DNSSEC (Domain Name System Security Extensions) is a security feature that adds cryptographic signatures to DNS records. When DNSSEC is 'signed' or enabled, it provides protection against DNS spoofing attacks where attackers try to redirect your traffic to malicious servers. While not all domains use DNSSEC, it's recommended for security-conscious sites, especially those handling sensitive data.

How often is WHOIS data updated?

WHOIS records update whenever domain information changes—registration, renewal, transfer, nameserver changes, or contact updates. Changes typically appear within minutes to hours. We cache results for 24 hours to reduce load on WHOIS servers. If you've just made changes to your domain and don't see them reflected, wait a few hours and try again.

What's the difference between registry and registrar WHOIS?

The registry (like Verisign for .com) maintains the authoritative WHOIS database for a TLD. The registrar (like GoDaddy or Namecheap) is where you actually register domains. Registry WHOIS shows basic ownership and registrar info. Registrar WHOIS may show more contact details. Our tool queries appropriate sources to get the most complete data available.

Can I see historical WHOIS records or previous owners?

Our free tool shows current WHOIS data only. Historical WHOIS records (sometimes called 'WHOIS History' or 'Reverse WHOIS') are available through specialized services like DomainTools, which archive WHOIS snapshots over time. These can show previous owners, when ownership changed, and how contact details evolved.

Is it legal to use WHOIS data for marketing?

WHOIS data has usage restrictions. ICANN's terms prohibit using WHOIS for mass marketing, spam, or automated data collection without permission. Many jurisdictions also have privacy laws restricting unsolicited contact. Using WHOIS to contact domain owners for legitimate business purposes (like buying a domain) is generally acceptable, but mass email campaigns using scraped WHOIS data violate terms of service.

Why do some domains show different WHOIS information than others?

WHOIS data varies by TLD because each registry sets its own policies. Some TLDs (like .us or some ccTLDs) require registrant information to be public. Others default to privacy protection. Different registries also use different data formats, which is why some WHOIS lookups return more fields than others. The registrar's policies and the owner's privacy settings also affect what's displayed.

What does 'Domain Age' mean for SEO?

Domain age refers to how long since the domain was first registered. While Google has stated that domain age alone isn't a direct ranking factor, older domains often have accumulated backlinks, content history, and established authority over time. Domain age can also affect trust signals—brand new domains are more likely to be associated with spam. Our tool calculates domain age automatically from the creation date.

How do I use WHOIS to check if a website is legitimate?

Check several factors: domain age (very new domains are riskier), registrant information (legitimate businesses often display their details), and registration location (does it match the business's claimed location?). Suspicious signs include domains registered days before you received an email, privacy-protected business domains, and mismatches between claimed company location and registration country.

Check Any Domain's Registration Details

Enter a domain name to see ownership information, registration dates, domain age, nameservers, and status codes—all explained in plain English.

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