Free SEO ToolsWHOIS Lookup

WHOIS Lookup

Find domain registration details instantly. Check age, registrar, and more.

Get fast, estimated domain registration details.

Find Domain Information

Look up registration details, estimated age, and registrar information for any domain.

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WHOIS answers questions that matter before you buy a domain, pitch a site, or trust a backlink: how old it is, who runs it, and whether it is about to expire.

What to look for

Registration date tells you the domain's age, which correlates loosely with trust — though a fifteen-year-old parked domain is worth less than a two-year-old active one. Expiry date matters for link prospecting: a domain expiring in three weeks is not somewhere to place a link.

Registrar and nameservers indicate how professionally the site is run. Frequent registrar changes and privacy shields on a supposedly corporate site are worth a second look.

Limits of the data

Since GDPR, most registrant contact details for individuals and EU entities are redacted, so WHOIS is no longer a reliable way to find an owner's email. Use the site's own contact page or a named author byline instead.

Treat WHOIS as one signal among several when judging a link prospect, never as the deciding one.

Related

Frequently Asked Questions

WHOIS is a public database that stores information about registered internet domains, including the owner's contact details (unless privacy protected), registration dates, and the registrar managing the domain.

Due to privacy regulations like GDPR, many domain owners use 'WHOIS Privacy Protection' to hide their personal contact information. In these cases, you'll see proxy contact details instead of the actual owner's info.

This free tool uses AI to estimate domain details based on available public patterns. For critical business decisions or legal disputes, we recommend using an official WHOIS lookup service or upgrading to Keupera Pro for verified real-time data.

If a domain is not found or has no registration history, it *might* be available for purchase. You should check with a domain registrar like Namecheap or Google Domains to confirm availability and buy it.

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