WHOIS Lookup
Query domain registration information including registrar, creation date, expiry date, and nameservers for any domain.
DNS & Domain Tools
View All Tools →What is WHOIS Lookup?
WHOIS is a query-and-response protocol for retrieving domain registration information. When you register a domain name, you provide details to a domain registrar, your name or organization, contact information, registration date, expiration date, and authorized name servers. Much of this information is stored in WHOIS databases maintained by registrars and registry operators. Our WHOIS lookup tool queries these databases to retrieve publicly available registration details for any domain.
WHOIS data helps verify domain ownership, investigate suspicious domains, research expired domains for acquisition, and perform due diligence before business transactions. While many domain owners use privacy protection services that mask personal contact information, key details like registrar, registration date, expiration date, and name servers remain publicly accessible.
How to Use the WHOIS Lookup Tool
Step-by-Step Guide
- 1. Enter Domain Name: Type the domain you want to look up (e.g., example.com). Do not include http:// or www.
- 2. Complete reCAPTCHA: Verify you're human by completing the reCAPTCHA challenge below the input field.
- 3. Submit Query: Click the WHOIS button to retrieve registration data from the appropriate WHOIS server.
- 4. Review Results: The tool displays domain name, registrar, creation date, expiration date, last update, name servers, status codes, and registrant information (if not redacted).
- 5. Check Expiration: Pay attention to the expiration date to identify potentially abandoned domains or upcoming renewals.
The tool parses WHOIS responses from various top-level domain (TLD) registries and formats the data for readability. Different TLDs may return different fields, for example, country-code TLDs (.uk, .de) have specific WHOIS policies that vary from generic TLDs (.com, .net, .org).
Information Revealed by WHOIS
Registrar Information
The company where the domain was registered (e.g., GoDaddy, Namecheap, Google Domains). Registrar data helps identify the service provider managing the domain.
Registration & Expiration Dates
When the domain was first registered and when it expires. Newly registered domains might indicate potential phishing sites. Domains approaching expiration may be available for acquisition if not renewed.
Name Servers
The authoritative DNS servers for the domain. Name server information reveals which DNS hosting provider is being used and can indicate shared infrastructure between related domains.
Contact Information (Often Private)
Registrant name, organization, email, phone, and address. Many registrants use WHOIS privacy services that replace real contact details with proxy information. GDPR regulations further restrict public access to personal data in WHOIS records.
Domain Status Codes
EPP status codes like clientTransferProhibited, serverHold, or redemptionPeriod indicate restrictions or special states. For example, domains in redemptionPeriod have expired and are in a grace period before being released.
Why Use WHOIS Lookup?
WHOIS lookups are essential for cybersecurity investigations. When analyzing a suspicious domain involved in phishing or malware distribution, WHOIS data reveals when the domain was registered (recently registered domains are often used for attacks), who the registrar is (certain registrars are favored by attackers), and what name servers are used (shared infrastructure may link related malicious domains).
Common Use Cases
- ✓Domain Research: Investigate domain ownership before purchasing, partnering, or engaging in business transactions.
- ✓Trademark Investigation: Identify domain owners who may be infringing on trademarks or squatting on brand-related domains.
- ✓Security Assessment: Analyze suspicious domains reported in phishing emails or malware samples to understand attacker infrastructure.
- ✓Expired Domain Hunting: Monitor expiration dates of valuable domains to acquire them once they become available.
- ✓Infrastructure Mapping: Link multiple domains through shared registrant details or name servers to uncover related assets.
- ✓Legal & Compliance: Gather evidence for domain disputes, abuse reports, or legal proceedings involving domain ownership.
WHOIS Privacy and GDPR
Many registrars offer WHOIS privacy (also called domain privacy or proxy registration) as a service. When enabled, the registrar's contact information replaces the true registrant's details in WHOIS records. This protects individuals from spam, identity theft, and unwanted solicitation while still maintaining the domain's functionality.
The European Union's General Data Protection Regulation (GDPR) restricts the publication of personal data, including WHOIS information. Since 2018, many registrars redact or hide registrant contact details for domains held by individuals in countries covered by GDPR. Law enforcement and intellectual property owners can still request access through official channels, but casual public lookups return limited information.
A WHOIS lookup queries publicly available domain registration databases to retrieve details like registrar, registration date, expiry date, name servers, and registrant contact info. It is the fastest way to find out who owns a domain and when it was registered.
A WHOIS query returns the registrar name, domain creation and expiration dates, authoritative name servers, EPP status codes, and registrant contact details, though contact info is often masked by privacy protection or redacted under GDPR.
Enter the domain name (e.g. example.com) without http:// or www, complete the reCAPTCHA, and click WHOIS. Results are parsed and formatted automatically from the relevant registry's WHOIS server.
Most registrars offer WHOIS privacy protection, replacing real contact details with proxy information. Since 2018, GDPR has also required registrars to redact personal data for individuals in covered regions. Key details like registrar and dates remain visible.
Yes, WHOIS is a core tool in cybersecurity investigations. Newly registered domains, low-cost registrars, and shared name servers are common indicators of phishing or malware infrastructure. Registration age and registrar pattern alone can flag suspicious domains quickly.
Country-code TLDs (ccTLDs) such as .uk and .de operate their own WHOIS registries with policies that differ from generic TLDs like .com or .net. Some ccTLDs return fewer fields or use a different query format, so results may vary.
EPP codes describe the current state of a domain. For example, clientTransferProhibited prevents unauthorised transfers, serverHold suspends DNS resolution, and redemptionPeriod means the domain has expired and is in a grace window before public release.
The expiration date in WHOIS results shows exactly when a domain is due to lapse. Domains not renewed enter a redemption period before being released back to the public, making WHOIS lookups a standard first step in expired domain research.
Yes, WHOIS data can identify registrants squatting on brand-related domains, provide evidence for UDRP disputes, and support abuse reports or legal proceedings involving domain ownership.
Querying publicly available WHOIS records is entirely legal. The data is intentionally made public by domain registries. Always use findings responsibly and in compliance with applicable laws.