WHOIS Lookup

Search domain registration information, owner details, nameservers, and expiration dates.

What is WHOIS?

Understanding domain registration information

Owner Information

Find out who registered a domain, including contact information (when available) and organization details.

Nameservers

Discover which DNS servers are authoritative for a domain and where it's hosted.

Registration Dates

Check when a domain was registered, last updated, and when it expires.

Common WHOIS Uses

Why people use WHOIS lookup tools

Check Domain Availability

See if a domain is registered or available for purchase.

Investigate Suspicious Sites

Research unknown websites and verify their legitimacy.

Contact Domain Owners

Find contact information to reach out about purchasing or partnership.

Trademark Protection

Monitor domains that may infringe on your brand or trademark.

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