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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
2021-03-12 ipv4 ipv6 geoip and geoip6 databases updated to "IPFire Project Fri, 12 Mar 2021 05:05:24 GMT" (geoip-db-digest 7EFC262380D93924340A0000DF78EC4DD3BFC0E5, geoip6-db-digest B53EF6F829B6A1B1DD242835B6A23580178FBE13).
commit
2021-03-11 Belarus Relays Unknown Drop of relay users in Belarus. Bridge users are not affected.
relay graph bridge graph
2021-03-10 Fire in the OVHcloud data centers located in Strasbourg takes about 48 relays offline in AS16276.
OVHcloud advisory Twitter thread
2021-03-09 flashproxy Decommissioned flash proxy badge server, flashproxy.bamsoftware.com.
2021-03-08 flashproxy Decommissioned flash proxy facilitator: server, flashproxy-reg-email poller, and flashproxy-reg-appspot app.
2021-03-08 snowflake Outage of the Snowflake bridge.
ticket
2021-02-13 Belarus Bridges meek obfs4 Blocking of default obfs4 bridges and email-distributed bridges in Belarus. Relay users are not affected.
ticket BBS thread NTC thread relay graph bridge graph
2021-01-27 snowflake Deployed version 0.5.3 of the Snowflake WebExtension, with improvements to NAT handling.
archive ticket comment
2021-01-26 Bridges Release of Tor Browser 10.5a8, which fixes the bug preventing the use of default bridges.
blog post issue
2021-01-20 Bridges Release of Tor Browser 10.5a7, which has a bug preventing the use of default bridges.
blog post issue issue
2021-01-17 to 2021-01-21 snowflake Unknown Decrease in measured Snowflake users. May have been caused by a drop of NAT-unrestricted proxies.
mailing list thread comment
2021-01-10 to 2021-02-03 onion Large amounts of traffic at directory authorities disrupts consensus, which causes v3 onion services to stop working because of a bug. Tor 0.3.5.13, 0.4.3.8, and 0.4.4.7 have a fix for the bug.
ticket blog post onion service traffic graph Tor blog post Tor Browser blog post status.torproject.org
2021-01-07 snowflake Changed the DNS records for snowflake.freehaven.net and snowflake-broker.bamsoftware.com to be CNAME records for the corresponding torproject.net domains, rather than bamsoftware.com, in order to avoid malware warnings.
ticket

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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.