Domain Intel Tool

Free Whois
Checker

Look up domain registration info instantly. Find the owner, registrar, expiry date and nameservers for any domain.

Owner / Registrant name

Registration & expiry dates

Registrar (GoDaddy, Namecheap…)

Nameservers & domain status

Instant resultsNo signupLive RDAP data

What is a Whois Lookup?

Whois is a query protocol that retrieves publicly available registration data stored in domain registries around the world. When anyone registers a domain name, the registrar stores key details — name, organization, email, expiry date, nameservers — in a publicly accessible registry database.

A Whois lookup queries that database and returns the stored information. Our tool uses the modern RDAP (Registration Data Access Protocol) — the official IANA replacement for the older WHOIS protocol — which returns structured, more accurate results.

Note: many domain owners enable Whois privacy protection, which hides personal details and replaces them with the registrar's proxy information.

Common Use Cases

Identify domain owners

Find who owns a domain before making a purchase offer or filing a legal complaint.

Monitor expiry dates

Track when competitor or partner domains are due to expire — opportunities or risks.

Due diligence on businesses

Verify company identity by cross-referencing domain registration details.

Domain portfolio management

Quickly audit your own domain portfolio to find upcoming renewals.

Cybersecurity investigations

Trace phishing domains and malicious websites back to their registration source.

How to Use the Whois Checker

Enter the domain name

Type the domain into the search box — just the domain (e.g. google.com). No http://, www, or path needed.

Click Lookup

Press the Lookup button or hit Enter. The tool queries the live RDAP registry for that domain's registration data.

Review the results

You'll see the registrar, registrant, registration date, expiry date, nameservers, and domain status in a clean table.

Whois Checker — FAQs

What is a Whois lookup?

A Whois lookup retrieves publicly available registration data for a domain name from the domain's registry database. It tells you who registered the domain, when, when it expires, and who the registrar is.

Is Whois information always publicly available?

Most domain registration details are publicly accessible. However, many registrars offer WHOIS privacy protection which replaces the registrant's personal details with proxy information.

How do I find who owns a domain?

Enter the domain name in the Whois Checker above and click Lookup. The tool returns the registrant name (or proxy if privacy is enabled), registration dates, and registrar details.

Can I check when a domain expires?

Yes. The Whois Checker shows the exact expiry date for any domain — useful for monitoring competitor domains or tracking your own portfolio.

What is RDAP?

RDAP (Registration Data Access Protocol) is the modern, IANA-recommended replacement for the old WHOIS protocol. It returns structured JSON data and is more accurate and consistent than traditional WHOIS.

How often is Whois data updated?

Whois data is updated in near real-time by the domain registry. Changes in ownership, nameservers, or renewal typically reflect within minutes to a few hours.