We estimate the number of users by analyzing the requests induced by clients to relays and bridges.
This graph shows the estimated number of clients connecting via bridges. These numbers are derived from directory requests counted on bridges. Bridges distinguish connecting clients by transport protocol, which may include pluggable transports, so that graphs are available for different transports. 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 |
---|---|---|
2015-04-15 | meek |
Tor Weekly News covers the meek-azure performance improvement.
blog post |
2015-04-08 | meek |
Implemented persistent connections for meek-azure, increasing performance.
mailing list post |
2015-03-09 | ipv4 |
geoip database updated to "March 3 2015 Maxmind GeoLite2 Country" (geoip-db-digest C1EB5237F2FBAF63381D8551157F13D12EFCCA25 ).
commit |
2015-03-09 | ipv6 |
geoip6 database updated to "March 3 2015 Maxmind GeoLite2 Country" (geoip6-db-digest 1F99B6B0EC78E9DB34D61AE7E0FC261D558E8E5D ).
commit |
2015-02-28 | meek |
Altered performance settings on the meek-google App Engine instance in an effort to reduce instance hours. Set max idle instances to 4 and min pending latency to 500 ms.
|
2015-02-14 | meek |
Release of Orbot v15-alpha-3, first release with meek.
mailing list post |
2015-01-22 | ipv4 |
geoip database updated to "January 7 2015 Maxmind GeoLite2 Country" (geoip-db-digest 49D309B9663C4EFB8D126D84BBB373D7C84658C3 ).
commit |
2015-01-22 | ipv6 |
geoip6 database updated to "January 7 2015 Maxmind GeoLite2 Country" (geoip6-db-digest 9B26276EA470137894566882885AD82701D38D62 ).
commit |
2014-11-24 | ipv4 |
geoip database updated to "November 15 2014 Maxmind GeoLite2 Country" (geoip-db-digest DC1A94D962AE165EF4AA1F14857A23C34875F39D ).
commit |
2014-11-24 | ipv6 |
geoip6 database updated to "November 15 2014 Maxmind GeoLite2 Country" (geoip6-db-digest 923BA7ED922B2A4B30C9B76EE7E72D1D1714BFAF ).
commit |
2014-11-17 | obfs4 |
Release of Tor Browser 4.5-alpha-1, first alpha release with obfs4. (Tor Browser changelog says 2014-11-14.)
blog post |
2014-11-15 | meek |
Moved the meek-google bridge to better hardware.
|
2014-11-08 | meek |
Changed the meek-google App Engine instance back to the F1 class, from F2.
|
2014-10-31 | meek |
Changed the meek-google App Engine instance to the F2 class again, from F1.
|
2014-10-27 | meek |
Changed the meek-google App Engine instance back to the F1 class, from F2.
|
2014-10-25 | meek |
Changed the bridge backing meek-google.
|
2014-10-25 | meek |
Changed the meek-google App Engine instance to the F2 class, from F1.
|
2014-10-15 | meek scramblesuit |
Tor Browser 4.0 released. This is the first stable release with meek and ScrambleSuit built in.
blog post |
2014-10-14 | meek |
Enabled PublishServerDescriptor on the meek-amazon bridge. Between 2014-09-29 and 2014-10-14, meek-amazon users were not being counted.
mailing list post |
2014-09-29 | meek |
Changed the bridge backing meek-amazon.
|
2014-09-29 | China |
China blocks Instagram in response to ongoing protests in Hong Kong. A research paper by Hobbs and Roberts shows evidence for an increase in circumvention, but the measurable effect on Tor is slight if anything.
relay graph bridge graph BBC article research paper |
2014-09-26 to 2014-12-15 | Hong Kong |
"Umbrella Revolution" protests in Hong Kong.
relay graph bridge graph |
2014-09-16 | meek |
Switched meek-amazon to HTTPS.
ticket |
2014-09-15 | flashproxy meek |
Split the bridge running meek and flashproxy into separate processes in order to avoid spurious correlation in user counts.
mailing list post |
2014-08-29 to 2014-09-01 | fte |
Decrease in fte users, perhaps caused by an outage of one of the default Tor Browser bridges.
mailing list post |
2014-07-27 to 2014-09-23 | Iran |
Iran blocks Tor directory authorities.
ticket |
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