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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.

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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
2016-12-13 obfs4 Tor Browser 6.5a6 is released. It fixes the app.update.url. It adds (uncomments) the default obfs4 bridge NX01:443. It activates timing obfuscation for certain obfs4 bridges. It changes the port of other obfs4 bridges.
blog post
2016-12-09 ipv4 ipv6 geoip and geoip6 databases updated to "December 7 2016 Maxmind GeoLite2 Country" (geoip-db-digest 1317BB3525E85E01FB34A89E04CE549AC23D07BD, geoip6-db-digest 865048C69BEC02B37268BFBAD66D9729B21CFCF5).
commit
2016-11-30 to 2016-12-02 Gambia Internet shutdown in Gambia.
relay graph OONI report Cloudflare blog post
2016-11-22 meek Decreased the rate limit on the meek-amazon bridge to 2.0 MB/s, from 3.0 MB/s.
2016-11-18 obfs4 Default obfs4 bridge Lisbeth turns on timing obfuscation (iat-mode=1).
ticket
2016-11-16 Tor Browser 6.5a4 is released. It changes the app.update.url.
blog post ticket
2016-11-15 meek Tor Browser 6.0.6 is released, unbreaking meek on macOS 10.12 (Sierra). (See 2016-09-20 breaking event.)
blog post ticket
2016-11-15 obfs4 Default obfs4 bridges ndnop3 and ndnop5 turn on timing obfuscation (iat-mode).
mailing list post ticket
2016-09-23 to 2016-11-28 obfs3 Outage of default obfs3 bridges "Unnamed" and "Unnamed" (fingerprint AF9F66B7B04F8FF6F32D455F05135250A16543C9). (Start date not known for sure, though it must have been after 2016-09-23; discussed in non-archived tor-team email.)

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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.