SEO Tool

WHOIS / RDAP Domain Lookup

Look up any domain's registrar, registration date, expiry, name servers, abuse contact and DNSSEC status — using modern RDAP protocol. Free, no rate limit.

✅ Free access 🔒 No Signup ⚡ Online checks 🌐 Browser Based

Quick Answer

The WHOIS Lookup queries any domain's RDAP record (the modern WHOIS replacement) to retrieve the registrar, registration date, expiry date, name servers, abuse contact email, DNSSEC status and ICANN status flags — with one click and no API key. Highlights expiring domains in amber.

🔍 Uses the RDAP protocol (modern WHOIS replacement) via the public rdap.org bootstrap registry. No API keys, no signup, no rate limit on this end.

Quick Facts

Tool Name: WHOIS / RDAP Domain Lookup
Category: SEO Tool
Price: Free access; request and input limits may apply.
Platform: Browser Based
Login Required: ✓ No
Processing & privacy: Online checks send submitted URLs or inputs to our server or the services described in the tool. No paid AI features are enabled.
Scope: Results describe the submitted input and supported checks. They do not guarantee accuracy, search rankings, indexing or AI citations. Read our testing and scoring methodology.

How to Use WHOIS / RDAP Domain Lookup

Enter Your Input
Paste your text or fill in the required fields in the tool above.
Run the Tool
Use the controls above; some browser tools update as you type.
Review the Results
Review the output and any warnings. Hosted checks need an internet connection.
Copy or Export
Use the available copy or download controls, and review suggestions before publishing.

Frequently Asked Questions

Everything you need to know about WHOIS / RDAP Domain Lookup

What's the difference between RDAP and WHOIS?

WHOIS is the original 1980s protocol for domain ownership data — text-based, inconsistent format per registrar. RDAP (Registration Data Access Protocol, RFC 7480) is the standardized JSON-over-HTTPS replacement that ICANN mandated for all gTLDs in 2024. This tool uses RDAP, which is faster and gives you reliable structured data.

Why is the registrant org blank for some domains?

Since GDPR (2018) and ICANN's Temporary Specification, registrars must redact most personal data for individuals. Organization-owned domains often still show the org name; personal domains show 'REDACTED FOR PRIVACY'. The registrar and abuse email are always shown.

Why does my .io / .ai / .co lookup fail sometimes?

Some country-code TLDs haven't adopted RDAP yet, or their RDAP servers are slow. The tool uses rdap.org as a bootstrap that finds the right authoritative server per TLD; failures usually mean the TLD's RDAP service is down or the domain isn't registered.

What do the status flags mean?

ICANN-defined status codes describing what operations are allowed on the domain. 'clientTransferProhibited' means the owner has locked transfers (good security practice). 'serverHold' means the registry has suspended the domain (often payment issue or abuse). 'pendingDelete' = scheduled for deletion in 5 days.

Is my lookup query logged?

We make one server-side request to rdap.org (the public RDAP bootstrap). We don't log the domains you query. rdap.org may log requests per its own policy.

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