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Tor Metrics
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Users

We estimate the number of users by analyzing the requests induced by clients to relays and bridges.

  • Relay users
  • Bridge users by country
  • Bridge users by transport
  • Bridge users by country and transport
  • Bridge users by IP version
  • BridgeDB requests by requested transport
  • BridgeDB requests by distributor
  • Top-10 countries by relay users
  • Top-10 countries by possible censorship events
  • Top-10 countries by bridge users
  • “The anonymous Internet”
Bridge users by country graph

This graph shows the estimated number of clients connecting via bridges. These numbers are derived from directory requests counted on bridges. Bridges resolve client IP addresses of incoming directory requests to country codes, so that graphs are available for most countries. For further details check the documentation on Reproducible Metrics.

Download graph as PNG or PDF.

Download data as CSV.

Learn more about the CSV data format or how to reproduce the graph data.

Related events

The following events have been manually collected in the metrics-timeline Git repository and might be related to the displayed graph.

Dates Places/Protocols Description and Links
2022-02-28 Bridges BridgeDB moves to an rdsys backend.
announcement issue
2022-02-18 snowflake Outage of the Snowflake bridge.
mailing list post
2022-02-01 Tor 0.3.5 reaches end of life.
mailing list post
2022-01-31 snowflake Switched the snowflake bridge from a load-balanced staging server back to the now load-balanced production server. Debugged connection problems until 2022-01-31 19:52:04.
issue comment comment
2022-01-28 snowflake Switched the snowflake-server (at the time running on a load-balanced staging server) for a version with CPU profiling.
comment
2022-01-25 snowflake Switched the snowflake bridge to a temporary load-balanced staging server. Debugged connection problems until 2022-01-25 18:47:00.
issue comment post comment
2022-01-07 snowflake Increased capacity of the mapping to client IP addresses on the snowflake bridge.
issue deployment comment
2021-12-29 snowflake Outage of the snowflake bridge.
comment alert
2021-12-22 snowflake Rebooted the Snowflake bridge to increase the number of CPUs from 4 to 8.
issue
2021-12-14 snowflake Release of Tor Browser 11.5a1, with an altered DTLS fingerprint in Snowflake to counteract blocking in Russia.
blog post issue NTC post
2021-12-08 obfs4 Release of Tor Browser 11.0.2, containing a new default obfs4 bridge "deusexmachina".
blog post issue
2021-11-17 to 2022-02-02 obfs4 Run a Tor Bridge campaign, offers rewards for running obfs4 bridges.
blog post about start blog post about end
2021-11-08 Removal of roughly 600 "KAX17" non-exit relays.
mailing list post relay graph article
2021-11-08 onion Release of Tor Browser 11.0. Final deprecation of v2 onion services.
blog post deprecation timeline graph
2021-09-22 to 2021-10-07 Experiment to investigate the accuracy of relays' advertised bandwidth.
status.torproject.org mailing list post advertised bandwidth graph
2021-08-27 to 2021-09-08 Experiment to investigate the accuracy of relays' advertised bandwidth.
status.torproject.org mailing list post advertised bandwidth graph
2021-08-12 ipv4 ipv6 geoip and geoip6 databases updated to "IPFire Project Thu, 12 Aug 2021 05:51:15 GMT" (geoip-db-digest B3A9770171D3060502B7F13C0618BE109B92DF6C, geoip6-db-digest 410B70763FC675B3622264FAA0FC67B78FDE30C2).
commit

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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.