We estimate the number of users by analyzing the requests induced by clients to relays and bridges.
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.
The following events have been manually collected in the metrics-timeline Git repository and might be related to the displayed graph.
The manually collected events in this table do not necessarily match the automatically generated possible censorship events shown in the graph.
Dates | Places/Protocols | Description and Links |
---|---|---|
2018-02-27 to 2018-03-02 |
Less than 3 bandwidth authorities are available.
tor-relays |
|
2018-02-24 | China |
Blocking in China intensifies following the announcement of proposed changes to remove presidential term limits.
article |
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 |
2018-02-01 to 2018-02-05 | Iran meek Unknown |
Drop of meek users in Iran; other transports not affected.
graph |
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 |
|
2018-01-01 | United Arab Emirates Relays |
User report that the UAE blocked Tor, bridges work.
comment |
2017-12-28 to 2018-01-13 | Iran |
Protests in Iran, blocking of various services including Tor. Instagram was unblocked 2018-01-06. Telegram was unblocked 2018-01-13.
Wikipedia OONI report relay graph bridge graph tweet Psiphon users |
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.
|
2017-12-12 to 2018-01-10 | France <OR> Relays Unknown |
Temporary tripling of relay users in France. Bridges not affected.
graph |
2017-12-10 to 2018-02-01 | Germany <OR> Relays Unknown |
Further, slow increase of relay users in Germany, from 500k to over 1.5M.
graph Reddit thread ticket |
2017-10-01 to 2018-03-01 | Cameroon |
Internet shutdown in parts of Cameroon.
article article |
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 |
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.