WHOIS Lookup

Search domain registration info via RDAP. Get registrar, dates, nameservers, and owner details.

Powered by RDAP (IANA). Free, no API key required. Limited to ~200 queries/hour per IP.
  • RDAP replaces legacy WHOIS with JSON results, better security, and internationalization support
  • Data sourced from IANA-registed registries (ARIN, RIPE, APNIC, LACNIC, AFRINIC)
  • Privacy-protected registrant data may be redacted per GDPR regulations
  • Use the JSON output programmatically for integrations

Domains · RDAP · registration

Look up domain registration details using public directory protocols from your browser. Check registrar, status, and expiry-related fields when troubleshooting ownership, transfers, or suspicious domains.

Domain registration data Public RDAP-style queries Expiry & status clues Security research aid No account

WHOIS vs RDAP (short version)

Classic WHOIS is a text protocol many registrars still expose. RDAP is the modern JSON-oriented replacement with clearer structure and access control. Tools and browsers increasingly query RDAP endpoints (and related public APIs) rather than raw WHOIS port 43. Field names and redaction policies vary by registry and privacy protection services.

Privacy redaction: GDPR and registrar privacy products often hide registrant email/address. “Redacted for privacy” is normal — not necessarily a fake domain. Do not use lookup data to harass registrants.

How to use this lookup

  1. Enter a domain name (typically the registrable domain, e.g. example.com).
  2. Run the lookup and wait for public directory results.
  3. Read registrar, status codes, nameservers, and dates carefully.
  4. Cross-check critical decisions (transfers, seizures) with your registrar’s control panel — public data can lag.

What people use it for

Status codes you might see

Status (examples)Meaning (simplified)
clientTransferProhibitedRegistrar lock against inbound transfer
clientDeleteProhibitedDelete protection enabled
serverHoldRegistry-side hold — often not resolving
pendingDeleteIn deletion lifecycle after expiry

Network note

Unlike pure formatters, lookups must contact public directory services. Your browser (or the page’s query path) reaches those services with the domain you enter. We are not your registrar of record. See Privacy and About for how network tools differ from fully offline utilities.

FAQ

Why is registrant empty?

Privacy proxies and registry policy. Administrative contacts may be limited on purpose.

Can I look up IPs or ASNs?

Use network-oriented tools such as ARIN Lookup for IP/org directory data where supported.

Is this legal?

Querying public registration data for legitimate troubleshooting is normal. Respect rate limits, terms of directory operators, and anti-abuse rules. No scraping for spam lists.

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