WHOIS Lookup

Look up any domain’s registration, registrar, dates, nameservers, and status.

Look up any domain without first visiting its website. WHOIS Lookup shows registration details from your browser toolbar: the registrar, creation and update dates, expiration date, nameservers, and domain status. Open the popup to check the active website, or click the edit button beside the domain to enter another name. Paste a domain or an HTTP/HTTPS URL, including international domain names. Subdomains are reduced to the registered domain. Queries use the registry’s RDAP service when available, with a classic WHOIS fallback. Results are cached locally for one hour; private-window lookup results are not cached. Clear the lookup cache and choose a preferred registrar in Settings. If no registration record is found, the extension shows “Possibly available.” Confirm final availability with your chosen registrar. Choose English, Turkish, German, Spanish, French, Brazilian Portuguese, or Japanese, or follow your browser’s language automatically. The queried domain is sent to the registry or fallback service. URL paths, queries, and fragments are discarded locally. No accounts, advertising, or analytics.