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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
2020-07-06 snowflake Deployed NAT-aware matching at the Snowflake broker.
comment
2020-06-30 to 2020-07-23 Ethiopia Internet shutdown in Ethiopia. Restrictions were partially lifted 2020-07-15.
article article IODA relay users graph
2020-06-25 snowflake Unknown One- or two-day spike in estimated Snowflake users. It resembles the spike that occurred around the time of the Turbo Tunnel release of Tor Browser 9.5a13 on 2020-05-22.
users graph
2020-06-02 snowflake Release of Tor Browser 10.0a1, the first release with Snowflake for Android.
blog post ticket
2020-05-22 snowflake Release of Tor Browser 9.5a13, the first release with Turbo Tunnel session persistence features for Snowflake. There is a spike in estimated users on 2020-05-21 and 2020-05-22, which appears to be an artifact.
blog post ticket users graph
2020-04-23 snowflake Redeployed the Snowflake bridge with support for non–Turbo Tunnel clients and KCP–Turbo Tunnel clients, removing support for QUIC–Turbo Tunnel clients.
comment
2020-03-02 to 2020-03-03 Iran Farsi-language edition of Wikipedia blocked in Iran.
OONI report Censored Planet
2020-01-09 to 2020-06-08 webstats Unknown Tor Browser update pings drop temporarily. A similar effect is present in other years.
graph issue metrics-team thread
2019-06-21 to present Myanmar Internet shutdown in parts of Myanmar.
report 2020 report
2019-04-27 to present Russia Relays Unknown Relay users increase by about 100K, in an apparent weekly cycle. Bridge users are not similarly affected.
relay graph bridge graph tor-talk thread Reddit thread
2019-02-16 to present Belarus Relays Unknown Increase of relay users in Belarus.
graph mailing list post
2018-12-20 to present Sudan Protests and social media blocks in Sudan.
relay graph Access Now post Psiphon users
2018-09-26 to present fte Outage of default FTE bridge 128.105.214.162:8080.
comment
2018-09-26 to present fte Outage of default FTE bridge 128.105.214.163:8080.
comment
2018-07-28 to present Turkey Relays Unknown Another jump of relay users in Turkey, from 5k to about 30k.
relay graph bridge graph
2018-07-01 to present Uganda A social media tax takes effect in Uganda. The government pressures ISPs to block VPNs.
relay graph bridge graph BBC article AllAfrica article OONI report
2018-06-20 to present Venezuela Venezuela's largest ISP, CANTV, blocks direct access to Tor and the IP addresses of default bridges. meek and non-default bridges are reported to work.
ticket mailing list post Access Now report
2018-04-30 to present Iran Iranian ISPs block Telegram.
ticket article relay graph bridge graph Psiphon users
2018-01-05 to present Outage of the op-hk OnionPerf instance.
op-hk graph
2017-12-04 to present DDoS attack creates load on the network.
tor-relays thread relay graph summary post ticket
2017-08-07 to present Congo, The Democratic Republic of the The Democratic Republic of the Congo orders a block of social media services.
article relay graph bridge graph
2017-02-10 to present OR exit Measurement error from bandwidth authority causes decrease in measured bandwidth in Europe.
mailing list post
2016-12-15 to present Congo, The Democratic Republic of the The Democratic Republic of the Congo orders a block of social media services.
article relay graph bridge graph
2016-11-03 to present Turkey Turkey blocks Facebook, Twitter, YouTube, WhatsApp.
article
2016-10-25 to present Egypt OR Relays Egypt blocks Tor directory authorities and public relays by TCP RST. Bridges work.
OONI report
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.