WHOIS Lookup: How to Find Domain Owner, Registration, and Expiry Info
What WHOIS Data Contains
Registrar: the company where the domain is registered (GoDaddy, Namecheap, Cloudflare). Registrant: the organization or individual who owns the domain (often redacted by GDPR privacy). Registration date and expiry date. Name servers: DNS servers authoritative for the domain. Last updated timestamp.
WHOIS Privacy and GDPR
Since GDPR (2018), most registrars in EU/EEA countries redact personal registrant information from public WHOIS records, replacing it with a proxy service contact. For .com/.net domains, ICANN's RDAP protocol provides structured data but also respects privacy rules.
Use Cases for WHOIS Lookups
Buying a domain: check if it's registered, who owns it, when it expires (available for acquisition if expiring). Security research: identify phishing or spam domains. Due diligence: verify a company actually owns the domain they claim to represent. Competitor research: when was their domain registered (older = more authority).
Frequently Asked Questions
Look up any domain
Use the free WHOIS Lookup tool to check domain registration and ownership details.
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