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Breitbandmessung vs nPerf: catalog facts
Breitbandmessung	nPerf
Free Free public service of the Bundesnetzagentur.	Free The web speed test is free to run.
macOS, Android, Web	Windows, macOS, Android, iOS, Web
Official measurement that can document underperforming contracts Compares measured speed against the contracted rate	Measures download, upload and latency Apps for mobile and desktop as well as the web
German-language and aimed at connections in Germany Contract compliance evidence relevant only to German providers	Not open source Tests against nPerf's own servers only
Downloadable app, Web application	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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