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Breitbandmessung vs FAST.com: catalog facts
Breitbandmessung	FAST.com
Free Free public service of the Bundesnetzagentur.	Free Free to use in the browser.
macOS, Android, Web	Web
Official measurement that can document underperforming contracts Compares measured speed against the contracted rate	Very simple, gives a download figure quickly Shows loaded and unloaded latency on request
German-language and aimed at connections in Germany Contract compliance evidence relevant only to German providers	Upload and latency are hidden by default No jitter or packet loss measurement
Downloadable app, Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is 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.