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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”
Relay users graph

This graph shows the estimated number of directly-connecting clients; that is, it excludes clients connecting via bridges. These estimates are derived from the number of directory requests counted on directory authorities and mirrors. Relays resolve client IP addresses to country codes, so that graphs are available for most countries. Furthermore, it is possible to display indications of censorship events as obtained from an anomaly-based censorship-detection system (for more details, see this technical report). 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
2021-07-06 snowflake Release of Tor Browser 10.5, first stable release that includes Snowflake.
blog post
2021-06-15 snowflake Snowflake bridge down for scheduled upgrade.
comment
2021-06-12 to 2021-06-13 snowflake Outage of Snowflake bridge.
issue
2021-06-10 to present Experiment to test latencies between relays.
status.torproject.org post announcing start
2021-06-10 ipv4 ipv6 geoip and geoip6 databases updated to "IPFire Project Thu, 10 Jun 2021 05:17:29 GMT" (geoip-db-digest 900E9BD6C8B8679A1539F7F316974E86618038B2, geoip6-db-digest 456BCA0796A27F8C80674EE89B1323F8310BED39).
commit
2021-06-04 to present Nigeria Block of Twitter in Nigeria. Increase in the number of bridge users.
article relay graph bridge graph
2021-05-17 to 2021-06-05 Experiment to test the accuracy of relays' advertised bandwidth estimation.
status.torproject.org post announcing start post announcing end advertised bandwidth graph relay flags graph
2021-05-14 to 2021-05-18 meek Unknown The number of meek users temporarily drops to < 10.
graph
2021-05-12 to 2021-06-21 snowflake Error in stats collection at the Snowflake bridge; user count is erroneously zero.
merge request comment on start comment on end user count graph
2021-05-07 ipv4 ipv6 geoip and geoip6 databases updated to "IPFire Project Fri, 07 May 2021 05:18:14 GMT" (geoip-db-digest AE864EA783E3776E4950859B5B35F412977F876F, geoip6-db-digest 7008D77E958D919E432AAE7F5C2002B14604FFFE).
commit
2021-05-03 snowflake Outage of snowflake bridge.
comment

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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.