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Tor Metrics
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Servers

Country and ISP diversity are approximated by resolving IP addresses to a country code and an autonomous system. We process the capabilities and properties relays and bridges reported to directory authorities.

  • Relays and bridges
  • Relays by relay flag
  • Relays by tor version
  • Relays by platform
  • Relays by IP version
  • Bridges by IP version
  • Total consensus weights across bandwidth authorities
  • Monthly uptime of relays
  • Network churn rate by relay flag
  • Network bubble graphs

This image shows the churn rate of the Tor network by relay flag in a given month. The churn rate, a value in the interval [0,1], captures the rate of relays joining and leaving the network from one consensus to the next (that is, within one hour). The complete image gallery can be found on Philipp Winter's homepage.

Network churn rate by relay flag

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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.