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whatsmydns.net vs DNSChecker: catalog facts
whatsmydns.net	DNSChecker
Free Free to use, with an option to donate.	Free Free to use in the browser.
Web	Web
Checks many record types including MX, TXT and CAA Results from servers in many countries at once	Shows results from many resolvers in different countries at once Covers a wide range of record types, including DNSSEC records
Shows a sample of resolvers, not every network Web only, with no scripting interface described	Shows what resolvers return but does not diagnose configuration errors
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account 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 September 23, 2026

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