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.
Dates | Places/Protocols | Description and Links |
---|---|---|
2017-04-06 | ipv4 ipv6 |
geoip and geoip6 databases updated to "April 4 2017 Maxmind GeoLite2 Country" (geoip-db-digest 0F3D4A456E5078CC9E49398ADCB04C40EA49B793 , geoip6-db-digest 04F41F05FA167EF6EEE3FE953404AB0BCCD33008 ).
commit |
2017-03-22 | meek |
Orbot 15.4.0 beta-2 multi is released, containing the new meek-azure CDN configuration.
mailing list post commit |
2017-03-08 | ipv4 ipv6 |
geoip and geoip6 databases updated to "March 7 2017 Maxmind GeoLite2 Country" (geoip-db-digest 63921843E3AAA632088D189D877F836A373CD40D , geoip6-db-digest 2B93B9C6679BB09E1746F212A6DCDC6E710F5F52 ).
commit |
2017-03-07 | meek scramblesuit |
Tor Browser 6.5.1 is released, containing the new meek-azure CDN configuration, and removing the last remaining scramblesuit bridge.
blog post meek ticket scramblesuit ticket |
2017-03-03 | meek |
Stopped the (unused) meek-azure CDN endpoint meek-reflect.azureedge.net.
mailing list post |
2017-03-03 | meek |
Stopped the meek-azure CDN endpoint az786092.vo.msecnd.net.
mailing list post |
2017-03-03 | meek |
Stopped the meek-azure CDN endpoint az668014.vo.msecnd.net.
mailing list post |
2017-02-12 | ipv4 ipv6 |
geoip and geoip6 databases updated to "February 8 2017 Maxmind GeoLite2 Country" (geoip-db-digest C0C6099CE335916862978F77756C0B42521A74B2 , geoip6-db-digest A54B14B9D47584E010F763D3EAE23C4726F4A8D5 ).
commit |
2017-02-10 to present | <OR> exit |
Measurement error from bandwidth authority causes decrease in measured bandwidth in Europe.
mailing list post |
2017-01-25 to 2017-04-05 | webstats |
Tor Browser update pings roughly halve. The beginning corresponds with the release of Tor Browser 6.5.2, which changed the app.update.url . The end doesn't correspond to any release.
ticket |
2017-01-24 |
Tor Browser 6.5 is released. It changes the app.update.url , which causes an apparent drop in update pings.
blog post graph ticket comment about app.update.url |
|
2017-01-24 | snowflake |
Tor Browser 7.0a1 released, including Snowflake for GNU/Linux only.
blog post |
2017-01-22 | meek |
1.0-beta release of GAEuploader, a tool that automates the setting up of meek.
mailing list post |
2017-01-09 | meek |
Decreased the rate limit on the meek-azure bridge to 2.0 MB/s, from 3.0 MB/s.
|
2017-01-04 | ipv4 ipv6 |
geoip and geoip6 databases updated to "January 4 2017 Maxmind GeoLite2 Country" (geoip-db-digest 672C29A4FA9BF81DE97CFE128741445E2BDE8097 , geoip6-db-digest 81F380639A8E1000539204949A363FD3BFAFBA74 ).
commit |
2016-12-21 to 2016-12-28 | <OR> Relays Unknown |
Drop in relay users.
metrics-team thread thread continues |
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 |
2016-12-12 | Turkey <OR> |
Turkey blocks direct Tor connections. The order to block had come on 2016-11-04.
ticket tweet article |
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 |
2016-11-22 | 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 |
2016-11-07 | ipv4 ipv6 |
geoip and geoip6 databases updated to "November 3 2016 Maxmind GeoLite2 Country" (geoip-db-digest 363C038D0BE61D6E0A63C43DE8EA70771ED7BEA5 , geoip6-db-digest 6110A2B794AFF0180FD096A4759434CABD289C40 ).
commit |
2016-11-04 | Turkey |
Turkey orders a block on VPN services and Tor.
Turkish article English article ticket |
2016-11-03 to present | Turkey |
Turkey blocks Facebook, Twitter, YouTube, WhatsApp.
article |
2016-10-19 to 2016-11-10 | meek |
Large decrease in meek users, perhaps caused by problems in Orbot 15.0.2 BETA 1 that were fixed in Orbot 15.2.0 RC8.
ticket initial email followup email Orbot mail |
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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