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Whoxy vs WhoisThisDomain: catalog facts
Whoxy	WhoisThisDomain
Freemium Free account with no monthly fee; API queries are pay as you go, from $10 for 5,000 WHOIS…	Free Freeware from NirSoft, free to use and redistribute unmodified.
Web	Windows
Reverse WHOIS by owner, company, email or keyword WHOIS history lookups	Chooses the WHOIS server automatically by TLD Batch lookups and name-and-extension combinations
Mainly built around a paid API for developers Bulk data such as the full database is expensive	Only queries WHOIS servers on port 43, not web-based WHOIS Proxy authentication with a user name and password is not supported
Web application, Hosted service	Downloadable app
Closed source	Closed source
License not stated	License: Freeware
Not stated if an account is needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.