Performance

We use Torperf and OnionPerf to run performance measurements. Both work by fetching files of different sizes over Tor and measuring how long that takes.

Time to download files over Tor graph

This graph shows overall performance when downloading static files of different sizes over Tor, either from a server on the public internet or from an onion server. Download times include complete downloads of the shown file size as well as partial downloads of larger file sizes. The graph shows the range of measurements from first to third quartile, and highlights the median. The slowest and fastest quarter of measurements are omitted from the graph.

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© 2009–2023 The Tor Project

This material is supported in part by the National Science Foundation under Grant No. CNS-0959138. Any opinions, finding, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. "Tor" and the "Onion Logo" are registered trademarks of The Tor Project, Inc.. Data on this site is freely available under a CC0 no copyright declaration: To the extent possible under law, the Tor Project has waived all copyright and related or neighboring rights in the data. Graphs are licensed under a Creative Commons Attribution 3.0 United States License.