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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
2018-03-27 snowflake Restarted the fallback snowflake proxies with no limit on memory.
comment
2018-03-26 snowflake Release of Tor Browser 8.0a5. Improves snowflake client performance.
blog post ticket
2018-03-23 snowflake Restarted the fallback snowflake proxies with a limit on resident memory (ulimit -m) rather than virtual memory (ulimit -v).
comment comment
2018-03-22 snowflake Provisionally increased memory limits of the fallback snowflake proxies to 400 MB, 800 MB, or unlimited.
comment
2018-03-22 snowflake Increased memory limit of the fallback snowflake proxies from 200 MB to 400 MB.
comment comment
2018-03-22 snowflake Disabled periodic restarts of the fallback snowflake proxies; gave them a memory limit of 200 MB.
comment
2018-03-16 snowflake Deployed another attempt to fix frequent crashes of the fallback snowflake proxies.
comment
2018-03-14 snowflake Deployed an attempt to fix frequent crashes of the fallback snowflake proxies.
comment commit
2018-03-12 ipv4 ipv6 geoip and geoip6 databases updated to "March 8 2018 Maxmind GeoLite2 Country" (geoip-db-digest 0FD75C42A32E82100361BD367CB13862806E6A13, geoip6-db-digest 5AFA101C4A6AD4289CEE4575943D6BA851606245).
commit
2018-03-07 to 2018-03-15 Sri Lanka Sri Lanka blocks Facebook, Instagram, WhatsApp, and Viber.
relay graph bridge graph article
2018-03-03 Release of tor 0.3.2.10, 0.3.1.10, and 0.2.9.15, which offer better resistance against DoS attacks.
blog post ticket
2018-02-27 to 2018-03-02 Less than 3 bandwidth authorities are available.
tor-relays
2018-02-12 Relays Tor 0.3.3.2-alpha reaches deb.torproject.org repositories
2018-02-11 Relays Tor 0.3.3.2-alpha reaches FreeBSD repositories
2018-02-10 Relays Tor 0.3.3.2-alpha is released (containing important denial-of-service migitations for relays)
blog
2018-02-08 ipv4 ipv6 geoip and geoip6 databases updated to "February 7 2018 Maxmind GeoLite2 Country" (geoip-db-digest FF83AD73DE7672C77EDF8888F4B241642C7C90F7, geoip6-db-digest B1CDBFEB7C88F82EF3B5289CAFEED1321FA4693F).
commit
2018-01-24 to present webstats Tor Browser update pings roughly halve, again. The beginning corresponds with the release of Tor Browser 7.5; however unlike with Tor Browser 6.5.2, there was no change to app.update.url this time.
ticket thread
2018-01-23 obfs4 Tor Browser 7.5 is released. It adds the default obfs4 bridge noisetor01:46089.
blog post
2018-01-20 Relays Some more directory authorities upgrade to 0.3.2.9 which enforces new requirements for the exit flag. ~50 relays lose the exit flag
tor-relays post
2018-01-18 to 2018-02-24 snowflake Outage of Snowflake broker caused by the disabling of the Let's Encrypt TLS-SNI-01 challenge.
ticket graph
2018-01-16 Tor 0.3.2.9 reaches deb.torproject.org.
relay versions graph
2018-01-08 ipv4 ipv6 geoip and geoip6 databases updated to "January 5 2018 Maxmind GeoLite2 Country" (geoip-db-digest ACE2AF82816B9D3F58FC9C79A41B4506D6DAD713, geoip6-db-digest 387B3F555F1E054F0F9971C726F49848C5B5CF8B).
commit
2018-01-05 to present Outage of the op-hk OnionPerf instance.
op-hk graph
2017-12-12 to 2018-01-18 meek Outage of the meek.bamsoftware.com (unthrottled for public use), meek.bamsoftware.com:7443 (former meek-azure, now unused), and gaeuploader.meek.bamsoftware.com (used by GAEuploader) bridges.

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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.