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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 transport graph

This graph shows the estimated number of clients connecting via bridges. These numbers are derived from directory requests counted on bridges. Bridges distinguish connecting clients by transport protocol, which may include pluggable transports, so that graphs are available for different transports. For further details check the documentation on Reproducible Metrics.

Source:

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
2017-03-08 ipv4 ipv6 geoip and geoip6 databases updated to "March 7 2017 Maxmind GeoLite2 Country" (geoip-db-digest 63921843E3AAA632088D189D877F836A373CD40D, geoip6-db-digest 2B93B9C6679BB09E1746F212A6DCDC6E710F5F52).
commit
2017-03-07 meek scramblesuit Tor Browser 6.5.1 is released, containing the new meek-azure CDN configuration, and removing the last remaining scramblesuit bridge.
blog post meek ticket scramblesuit ticket
2017-03-03 meek Stopped the (unused) meek-azure CDN endpoint meek-reflect.azureedge.net.
mailing list post
2017-03-03 meek Stopped the meek-azure CDN endpoint az786092.vo.msecnd.net.
mailing list post
2017-03-03 meek Stopped the meek-azure CDN endpoint az668014.vo.msecnd.net.
mailing list post
2017-03-01 to 2018-11-12 United Arab Emirates <OR> Relays Unknown Another increase in relay users, slower and more sustained than the previous one.
graph ticket about end
2017-02-12 ipv4 ipv6 geoip and geoip6 databases updated to "February 8 2017 Maxmind GeoLite2 Country" (geoip-db-digest C0C6099CE335916862978F77756C0B42521A74B2, geoip6-db-digest A54B14B9D47584E010F763D3EAE23C4726F4A8D5).
commit
2017-02-10 to present <OR> exit Measurement error from bandwidth authority causes decrease in measured bandwidth in Europe.
mailing list post
2017-02-09 to 2017-08-01 India obfs3 Unknown Gradual but large increase of obfs3 users in India, followed by slow decay. Relay users and other transports seemingly not affected.
graph
2017-02-09 to 2017-03-21 Jordan obfs3 Unknown Abrupt increase and decrease in obfs3 users in Jordan. Relay users and other transports seemingly not affected.
graph
2017-02-06 to 2017-08-01 United Arab Emirates obfs3 Unknown Increase in obfs3 users from the UAE, from 5K to 100K. Other transports not affected.
transport graph UAE bridge graph ticket
2017-01-25 to 2017-04-05 webstats Tor Browser update pings roughly halve. The beginning corresponds with the release of Tor Browser 6.5.2, which changed the app.update.url. The end doesn't correspond to any release.
ticket
2017-01-24 Tor Browser 6.5 is released. It changes the app.update.url, which causes an apparent drop in update pings.
blog post graph ticket comment about app.update.url
2017-01-24 snowflake Tor Browser 7.0a1 released, including Snowflake for GNU/Linux only.
blog post
2017-01-22 meek 1.0-beta release of GAEuploader, a tool that automates the setting up of meek.
mailing list post
2017-01-16 to 2017-04-20 Cameroon Internet shutdown in parts of Cameroon.
article article
2017-01-15 to 2017-03-01 United Arab Emirates <OR> Relays Unknown Huge spike in relay users (400k+). An anonymous contributor suggests that it may be a botnet, based on the large number of hosts with an open SMB port in the UAE.
graph metrics-team thread Reddit thread comment about botnet
2017-01-09 meek Decreased the rate limit on the meek-azure bridge to 2.0 MB/s, from 3.0 MB/s.
2017-01-04 ipv4 ipv6 geoip and geoip6 databases updated to "January 4 2017 Maxmind GeoLite2 Country" (geoip-db-digest 672C29A4FA9BF81DE97CFE128741445E2BDE8097, geoip6-db-digest 81F380639A8E1000539204949A363FD3BFAFBA74).
commit
2016-07-21 to 2017-03-03 Brazil meek Unknown Sustained increase in meek users in Brazil. Locals believe that they are not actual users, rather bots or something like that. End date coincides with shutdown of meek-azure before migration. Would pick up again 2017-06-07.
graph
2015-12-31 to 2020-06-04 Mexico The Telmex ISP in Mexico blocks seven directory authorities.
mailing list post article

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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.