Users
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 resolve client IP addresses of incoming directory requests to country codes, and they distinguish connecting clients by transport protocol, which may include pluggable transports. Even though bridges don't report a combination of clients by country and transport, it's possible to derive and graph lower and upper bounds from existing usage statistics. For further details check the documentation on Reproducible Metrics.
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 |
|---|---|---|
| 2021-07-06 | snowflake |
Release of Tor Browser 10.5, first stable release that includes Snowflake.
blog post |
| 2021-06-15 | snowflake |
Snowflake bridge down for scheduled upgrade.
comment |
| 2021-06-12 to 2021-06-13 | snowflake |
Outage of Snowflake bridge.
issue |
| 2021-06-10 to present |
Experiment to test latencies between relays.
status.torproject.org post announcing start |
|
| 2021-06-10 | ipv4 ipv6 |
geoip and geoip6 databases updated to "IPFire Project Thu, 10 Jun 2021 05:17:29 GMT" (geoip-db-digest 900E9BD6C8B8679A1539F7F316974E86618038B2, geoip6-db-digest 456BCA0796A27F8C80674EE89B1323F8310BED39).
commit |
| 2021-05-17 to 2021-06-05 |
Experiment to test the accuracy of relays' advertised bandwidth estimation.
status.torproject.org post announcing start post announcing end advertised bandwidth graph relay flags graph |
|
| 2021-05-14 to 2021-05-18 | meek Unknown |
The number of meek users temporarily drops to < 10.
graph |
| 2021-05-12 to 2021-06-21 | snowflake |
Error in stats collection at the Snowflake bridge; user count is erroneously zero.
merge request comment on start comment on end user count graph |
| 2021-05-07 | ipv4 ipv6 |
geoip and geoip6 databases updated to "IPFire Project Fri, 07 May 2021 05:18:14 GMT" (geoip-db-digest AE864EA783E3776E4950859B5B35F412977F876F, geoip6-db-digest 7008D77E958D919E432AAE7F5C2002B14604FFFE).
commit |
| 2021-05-03 | snowflake |
Outage of snowflake bridge.
comment |
| 2021-04-13 | ipv4 ipv6 |
geoip and geoip6 databases updated to "IPFire Project Tue, 13 Apr 2021 05:11:07 GMT" (geoip-db-digest D63E30D25E7767178177C53A0248083011B4202A, geoip6-db-digest 891E8F6FBC7973144E335F0D815B5AF6B6DDF74B).
commit |
| 2021-03-16 | ipv4 ipv6 |
Release of tor 0.3.5.14, 0.4.4.8, and 0.4.5.7. Changes the source of geolocation databases from Maxmind to IPFire.
blog post announcement ticket commit |
| 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 |
| 2021-03-10 |
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 |
| 2021-01-27 | 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 |
| 2020-12-17 to 2020-12-20 | snowflake |
DDoS attack on Greenhost, where the Snowflake broker and bridge and onionperf instances are hosted.
2020-12-17 status 2020-12-20 status anti-censorship-team thread |
| 2020-12-05 to 2020-12-09 | meek moat |
An update to an Azure CDN edge server TLS certificate causes an outage of meek and Moat. It is fixed by the release of Tor Browser 10.0.6, which updates the built-in public key pinning of obfs4proxy.
ticket blog post meek graph BridgeDB graph certificate transparency |
| 2020-11-08 to 2020-11-09 | snowflake |
Outage of the snowflake bridge
ticket |
| 2020-10-05 | snowflake |
Deployed version 0.4.2 of the Snowflake WebExtension, with better counting of clients.
archive comment |
| 2020-08-31 | obfs4 |
Shutdown of default obfs4 bridge frosty.
ticket |
| 2020-08-13 | snowflake |
Deployed version 0.4.1 of the Snowflake WebExtension, with NAT type detection in the browser.
archive comment |
| 2020-07-06 | snowflake |
Deployed NAT-aware matching at the Snowflake broker.
comment |
| 2020-06-02 | snowflake |
Release of Tor Browser 10.0a1, the first release with Snowflake for Android.
blog post ticket |
| 2020-05-22 | snowflake |
Release of Tor Browser 9.5a13, the first release with Turbo Tunnel session persistence features for Snowflake.
blog post ticket |
| 2020-04-23 | snowflake |
Redeployed the Snowflake bridge with support for non–Turbo Tunnel clients and KCP–Turbo Tunnel clients, removing support for QUIC–Turbo Tunnel clients.
comment |
| 2020-02-22 | snowflake |
Made the Snowflake bridge stop reporting client IP addresses of 0.0.0.0. This also affects log messages that report how many client connections had an attached IP address.
comment |
| 2020-02-19 | snowflake |
Deployed a Turbo Tunnel–capable Snowflake bridge.
comment |
| 2020-02-18 | snowflake |
Outage of the Snowflake bridge caused by memory exhaustion.
ticket |
| 2019-12-06 | ipv4 ipv6 |
geoip and geoip6 databases updated to "December 3 2019 Maxmind GeoLite2 Country" (geoip-db-digest 4974C4F1F6842975999D0774F2636F383312EA2D, geoip6-db-digest 2046D67D7BBE67AFF12E1CEDD9F9083AB5E3DFAC).
commit |
| 2019-11-14 | ipv6 snowflake |
Changed DNS to point to the IPv6-enabled Snowflake broker.
comment |
| 2019-11-14 | snowflake |
Deployed webext-0.1.0 of the Snowflake proxy (which uses a new proxy–broker protocol) to snowflake.torproject.org.
comment |
| 2019-11-13 | snowflake |
Released version 0.1.0 of the Snowflake extension for Firefox and Chrome, using a new proxy–broker protocol.
comment |
| 2019-11-13 | snowflake |
Restarted the broker with a new proxy–broker protocol.
comment |
| 2019-11-09 | ipv4 ipv6 |
geoip and geoip6 databases updated to "November 6 2019 Maxmind GeoLite2 Country" (geoip-db-digest 967E4D14ADF0C9439C31FB7B666537A0551C1E6A, geoip6-db-digest BD6E89A28801FA447693EDEC6D47ECCA03B8CD20).
commit |
| 2019-10-28 | snowflake |
Version 0.0.13 of the Snowflake extension is released, decreasing the poll frequency to once every 300 s. The standalone proxy-go instances still poll once every 5 s.
comment |
| 2019-10-17 | snowflake |
Pointed snowflake-broker.torproject.net (one of three domain names for the Snowflake broker) to a new broker instance set up with IPv6. Metrics unintentionally start being collected from the new instance, instead of the old instance that was still in use.
ticket ticket |
| 2019-10-02 | ipv4 ipv6 |
geoip and geoip6 databases updated to "October 1 2019 Maxmind GeoLite2 Country" (geoip-db-digest 34ABC09019FAB09BA3083B3663EC0B807FC16151, geoip6-db-digest F4D3BEC6294DF7FAEAEE5966CC6706CF91CE9BC4).
commit |
| 2019-10-01 | snowflake |
Release of Tor Browser 9.0a7, the first release that has Snowflake for Windows.
blog post ticket |
| 2019-08-06 to 2019-08-09 |
Experiment to test the accuracy of relays' advertised bandwidth estimation.
description of experiment post announcing start post announcing end advertised bandwidth graph relay flags graph |
|
| 2019-07-27 | snowflake |
The Snowflake proxy hosted at snowflake.torproject.org is updated, changing domains from bamsoftware.com to freehaven.net in order to work around the Google Safe Browsing block.
comment |
| 2019-07-27 | snowflake |
Version 0.0.7 of the Snowflake extension for Chrome is released, changing domains from bamsoftware.com to freehaven.net in order to work around the Google Safe Browsing block.
comment |
| 2019-07-26 | flashproxy snowflake |
Cupcake 2.0 is released, now working with Snowflake rather than flash proxy.
Chrome Web Store page |
| 2019-07-26 | snowflake |
Version 0.0.8 of the Snowflake extension for Firefox is released, changing domains from bamsoftware.com to freehaven.net in order to work around the Google Safe Browsing block.
comment |
| 2019-07-23 | snowflake |
The broker domain name snowflake-broker.bamsoftware.com is blocked by Google Safe Browsing, preventing the Snowflake web browser extension from working.
ticket comment noting decrease in proxies |
| 2019-07-18 to 2019-08-07 | Kazakhstan |
The Kazakh ISP KazTelecom does man-in-the-middle of TLS connections.
Censored Planet report post about end |
| 2019-07-03 | snowflake |
The Snowflake web browser extension for Chrome is published.
comment |
| 2019-06-26 | snowflake |
The Snowflake web browser extension for Firefox is published.
comment |
| 2019-06-20 | obfs4 |
A call to set up new obfs4 bridges is posted to the tor-relays mailing list.
mailing list thread thread continues |
| 2019-06-11 | ipv4 ipv6 |
geoip and geoip6 databases updated to "June 10 2019 Maxmind GeoLite2 Country" (geoip-db-digest A131E1F283F4AD307248B03A70B0413E81ADF2A4, geoip6-db-digest 0EFF3EE1E22927EC9A77BFFAFD703F3A5B32FA79).
commit |
| 2019-05-28 |
Failure of network equipment at site of op-ab OnionPerf instance (equipment now replaced)
onionperf timeouts graph |
|
| 2019-05-22 | fte |
Release of Tor Browser 9.0a1, removes support for FTE.
blog post ticket |
| 2019-05-17 | ipv4 ipv6 |
geoip and geoip6 databases updated to "May 13 2019 Maxmind GeoLite2 Country" (geoip-db-digest 35DFDA2D06D2A0467EF37D60A67B438B11952B74, geoip6-db-digest C0193A1D086819353FABBF70AADB15866B7B2525).
commit |
| 2019-04-29 |
Network equipment failure at site of op-ab OnionPerf instance
performance graph |
|
| 2019-04-17 | Unknown |
Tor browser update pings roughly double.
graph metrics-team thread |
| 2019-04-16 | snowflake |
Outage of Snowflake fallback proxy-go instances, caused by a failure to restart after segregating old logs.
ticket |
| 2019-04-03 | ipv4 ipv6 |
geoip and geoip6 databases updated to "April 2 2019 Maxmind GeoLite2 Country" (geoip-db-digest 62A97D4DEBF76A5CE5C232B95BBF05B191EB8AAA, geoip6-db-digest 66620E57A8427C53D6084B3229807DC320CDC3D0).
commit |
| 2019-03-22 | snowflake |
Outage of the Snowflake broker, caused by a full disk.
ticket |
| 2019-03-06 | ipv4 ipv6 |
geoip and geoip6 databases updated to "March 4 2019 Maxmind GeoLite2 Country" (geoip-db-digest 5B90C2F06292D8237A5C77E27ED4ABABF4AE0684, geoip6-db-digest E971FCA4A89F6C685928FF9371D1BF7A2484F4CA).
commit |
| 2019-02-12 | ipv4 ipv6 |
geoip and geoip6 databases updated to "February 5 2019 Maxmind GeoLite2 Country" (geoip-db-digest DDAA25B4425EAA45EE8E92A6531CD3246C8E989A, geoip6-db-digest 0368FA722D90026E60BD60A26F615791A7A53D21).
commit |
| 2019-02-07 | snowflake |
Disabled the 3 proxy-go instances that were pointing at the former broker hosted on App Engine.
comment |
| 2019-01-07 | Bridges |
Release of tor 0.3.5.7, 0.3.4.10, and 0.3.3.11. Fixes the bug, present since 0.3.5.1-alpha/0.3.4.1-alpha, of idle bridges being unuseful.
comment ticket blog post ticket |
| 2019-01-07 | ipv4 ipv6 |
geoip and geoip6 databases updated to "January 3 2019 Maxmind GeoLite2 Country" (geoip-db-digest 2B8A70B399CF8B471289A4DB52947DE965D8DE5F, geoip6-db-digest FEA33E6F398DF67252F41DDD3D010E69B33D544E).
commit |
| 2018-12-05 | ipv4 ipv6 |
geoip and geoip6 databases updated to "December 5 2018 Maxmind GeoLite2 Country" (geoip-db-digest 0684E08BDC01ABB41A717E9C55BDEB21531CFAC8, geoip6-db-digest AFFAD1475879D57B1C1EA119141EFA0E57547290).
commit |
| 2018-11-26 to 2018-11-28 |
Outage of the onionperf-us instance, caused by a Greenhost east coast VPS migration.
mailing list post |
|
| 2018-11-26 to 2018-11-28 | flashproxy |
Outage of the flash proxy badge hosting server, flashproxy.bamsoftware.com, caused by a Greenhost east coast VPS migration.
|
| 2018-11-19 to 2018-11-27 |
Slow-running processes on the metrics host cause an observed drop in the overall relay bandwidth graph.
mailing list thread |
|
| 2018-11-16 to 2018-11-22 | snowflake |
A full disk stops the Snowflake bridge and fallback proxies from working.
ticket |
| 2018-11-11 | ipv4 ipv6 |
geoip and geoip6 databases updated to "November 6 2018 Maxmind GeoLite2 Country" (geoip-db-digest 603BE8A0CA1B7164D76DBC75A280C9CA0A556F65, geoip6-db-digest 1CEF662539C0D91EC07A7C5C13134E3317B451E4).
commit |
| 2018-10-25 to 2018-10-28 | Relays |
Gap in observed number of relay users, caused by the estimated fraction of reporting relays exceeding 100%.
metrics-team post ticket graph archived graph |
| 2018-10-10 | ipv4 ipv6 |
geoip and geoip6 databases updated to "October 9 2018 Maxmind GeoLite2 Country" (geoip-db-digest 76907A8345DA84CC724CDD573B6E08F6A089FEEB, geoip6-db-digest 5852AB4D3A96D7526DD47D5573CB4FA32BE4ECEB).
commit |
| 2018-09-26 to present | fte |
Outage of default FTE bridge 128.105.214.162:8080.
comment |
| 2018-09-26 to present | fte |
Outage of default FTE bridge 128.105.214.163:8080.
comment |
| 2018-09-18 | Bridges |
Release of tor 0.3.5.1-alpha, containing a bug that makes idle bridges unuseful.
|
| 2018-09-11 | ipv4 ipv6 |
geoip and geoip6 databases updated to "September 6 2018 Maxmind GeoLite2 Country" (geoip-db-digest C9118A0D763E069B890674A4D5000A3DB846746B, geoip6-db-digest 8A46B41B2AE16F3705C67DEECD20EAA50B043A51).
commit |
| 2018-09-10 | Bridges |
Release of tor 0.3.4.8, 0.2.9.17, 0.3.2.12, and 0.3.3.10. 0.3.4.8, containing a bug that makes idle bridges unuseful, becomes the stable release.
blog post |
| 2018-08-09 | ipv4 ipv6 |
geoip and geoip6 databases updated to "August 7 2018 Maxmind GeoLite2 Country" (geoip-db-digest 4C2E4FF8220FFFB4989564728701016DF705BCBF, geoip6-db-digest F3F5C576BF3E8D5FD9F6F33603D7BFD64DEAA8B5).
commit |
| 2018-08-04 to 2018-08-05 |
Collector was missing consensuses. They were recovered via recent relay consensus diffs.
metrics-team thread tor-relays thread |
|
| 2018-07-21 | Bridges |
The estimated number of bridge users becomes available again, following the introduction of the new bridge authority Serge on 2018-07-13. The stats took about a week to reappear because of the discontinuity in bridge reporting affecting the estimated fraction of reporting bridges.
mailing list post graph |
| 2018-07-20 to 2019-05-02 | onion Unknown |
The number of v2 onion services increases from 70k to 100k.
comment |
| 2018-07-15 | snowflake |
Made the Snowflake bridge report to the new Serge bridge authority.
comment |
| 2018-07-14 | Bridges |
Release of Tor 0.2.9.16, 0.3.2.11, 0.3.3.9, and 0.3.4.5-rc. Switches bridge authority from Bifroest to Serge. The number of bridges begins counting up from zero as bridges are upgraded. The estimated number of bridge users remained unavailable until 2018-07-21 because of the discontinuity.
announcement ticket blog post number of bridges graph |
| 2018-07-13 | Bridges |
The replacement bridge authority Serge begins publishing bridge descriptors.
ticket ticket number of bridges graph |
| 2018-07-06 | Bridges |
The bridge authority Bifroest stops publishing bridge descriptors. Bridge stats are unavailable until 2018-07-13 and the introduction of a new bridge authority.
ticket ticket mailing list post number of bridges graph |
| 2018-07-06 | ipv4 ipv6 |
geoip and geoip6 databases updated to "July 3 2018 Maxmind GeoLite2 Country" (geoip-db-digest CFFD7B0544879150A31F966E83DBB7DDDFA16F49, geoip6-db-digest B25710F60CB23F0C76F58AFB0A26A26ACB701BB2).
commit |
| 2018-07-04 to 2018-07-06 | snowflake |
Outage of the Snowflake bridge, caused by a full disk.
ticket |
| 2018-06-27 | meek |
Release of Tor Browser 8.0a9 with non-working meek.
blog post ticket |
| 2018-06-24 to 2018-07-06 | snowflake |
Metrics for Snowflake are missing, for unknown reasons. The gap is nearly contemporaneous with the gap the measurements for all transports/bridges caused by Bifroest–Serge bridge authority switchover, but starts about 2 weeks earlier in Snowflake's case.
ticket |
| 2018-06-11 | ipv4 ipv6 |
geoip and geoip6 databases updated to "June 7 2018 Maxmind GeoLite2 Country" (geoip-db-digest 93112125248AD2C11A2531B934FD4AC03999738D, geoip6-db-digest BFD2B453F2D9DC875B7B0C464A185E6C3202534F).
commit |
| 2018-06-10 | meek |
Release of Tor Browser 8.0a8, removes meek-amazon option.
blog post |
| 2018-06-09 | meek |
Release of Tor Browser 7.5.5, removes meek-amazon option.
blog post |
| 2018-05-23 to 2018-07-01 | Bridges Unknown |
Sharp increase in bridge users in many unrelated countries, affecting even the global aggregate. Relay users unaffected. The graphs reach a peak around 2018-06-07 and then begin falling again. An incomplete sampling of affected countries: Bangladesh Chile Indonesia Morocco Venezuela.
relay graph bridge graph |
| 2018-05-17 | Bridges |
Release of tor 0.3.4.1-alpha. Has a bug that makes idle bridges unuseful.
ticket ticket |
| 2018-05-15 | ipv4 ipv6 |
geoip and geoip6 databases updated to "May 1 2018 Maxmind GeoLite2 Country" (geoip-db-digest 765D2F123DDA7DAEA9C9263975E2B4BAFBD2B908, geoip6-db-digest 2AA568CC898BF9924FBACEA26946AA7ED10E7D87).
commit |
| 2018-05-14 | meek |
Disabled the d2cly7j4zqgua7.cloudfront.net CDN endpoint for meek-amazon.
Tor Browser ticket Orbot ticket |
| 2018-05-09 | snowflake |
Release of Tor Browser 8.0a7, which changes the default Snowflake rendezvous to use an Azure domain front, instead of the Google one that had been non-functional since 2018-04-13.
blog post ticket |
| 2018-05-08 | meek |
The meek-amazon bridge imposes a rate limit of 1 MB/s.
|
| 2018-04-25 to 2018-07-02 | onion Unknown |
The number of v2 onion services increases from 70k to 120k.
ticket |
| 2018-04-16 | snowflake |
Moved the Snowflake broker from App Engine to a standalone server.
comment |
| 2018-04-13 | snowflake |
Snowflake client registrations (based on domain fronting) stop working, because of a Google infrastructure change that stops domain fronting from working. The time of the change is between 2018-04-13 14:00:00 and 2018-04-13 18:00:00, based on when the bandwidth graph of the Snowflake bridge 5481936581E23D2D178105D44DB6915AB06BFB7F went to zero.
ticket |
| 2018-04-05 | ipv4 ipv6 |
geoip and geoip6 databases updated to "April 3 2018 Maxmind GeoLite2 Country" (geoip-db-digest 8A53650327E8D30E971DC90F564BA9BD1A513F19, geoip6-db-digest 698852511F6BC27DFFC115805044C71FDCCF70AF).
commit |
| 2018-04-02 to 2018-04-18 | snowflake |
Accidentally misconfigured the 3 proxy-go instances that were meant to point to the new standalone broker so that they pointed to the old App Engine broker.
start end |
| 2018-04-02 | snowflake |
Reinstated periodic restarts of the fallback snowflake proxies.
comment |
| 2018-03-27 | snowflake |
Restarted the fallback snowflake proxies with no limit on memory.
comment |
| 2018-03-26 | snowflake |
Release of Tor Browser 8.0a5. Improves snowflake client performance.
blog post ticket |
| 2018-03-23 | snowflake |
Restarted the fallback snowflake proxies with a limit on resident memory (ulimit -m) rather than virtual memory (ulimit -v).
comment comment |
| 2018-03-22 | snowflake |
Provisionally increased memory limits of the fallback snowflake proxies to 400 MB, 800 MB, or unlimited.
comment |
| 2018-03-22 | snowflake |
Increased memory limit of the fallback snowflake proxies from 200 MB to 400 MB.
comment comment |
| 2018-03-22 | snowflake |
Disabled periodic restarts of the fallback snowflake proxies; gave them a memory limit of 200 MB.
comment |
| 2018-03-16 | snowflake |
Deployed another attempt to fix frequent crashes of the fallback snowflake proxies.
comment |
| 2018-03-14 | snowflake |
Deployed an attempt to fix frequent crashes of the fallback snowflake proxies.
comment commit |
| 2018-03-12 | ipv4 ipv6 |
geoip and geoip6 databases updated to "March 8 2018 Maxmind GeoLite2 Country" (geoip-db-digest 0FD75C42A32E82100361BD367CB13862806E6A13, geoip6-db-digest 5AFA101C4A6AD4289CEE4575943D6BA851606245).
commit |
| 2018-03-03 |
Release of tor 0.3.2.10, 0.3.1.10, and 0.2.9.15, which offer better resistance against DoS attacks.
blog post ticket |
|
| 2018-02-27 to 2018-03-02 |
Less than 3 bandwidth authorities are available.
tor-relays |
|
| 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 |
| 2018-01-24 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 |
|
| 2017-12-21 |
Release of tor 0.3.2.8-rc, intended to fix the KIST bug that enabled a DoS on relays by running them out of memory.
announcement ticket |
|
| 2017-12-20 | ipv4 ipv6 |
geoip and geoip6 databases updated to "December 6 2017 Maxmind GeoLite2 Country" (geoip-db-digest 1D486694A710145631B295CC39ECC5682F75858C, geoip6-db-digest F33231CAC761A71F7C19273DB1E11CEE01E2D982).
commit |
| 2017-12-16 to 2017-12-17 | Bridges Unknown |
Drop in the number of measured bridges.
graph mailing list post |
| 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.
|
| 2017-12-09 | <OR> ipv6 Relays |
Release of Tor Browser 7.0.11, containing tor 0.3.1.9, which adds an IPv6 address for the bridge authority bastet.
blog post |
| 2017-12-09 | <OR> ipv6 Relays |
Release of Tor Browser 7.5a9, containing tor 0.3.2.6-alpha, which adds an IPv6 address for the bridge authority bastet.
blog post |
| 2017-12-08 to 2017-12-11 | Bridges |
The bridge authority was down for unknown reasons.
graph mailing list post |
| 2017-12-04 to present |
DDoS attack creates load on the network.
tor-relays thread relay graph summary post ticket |
|
| 2017-12-01 | <OR> ipv6 Relays |
Release of tor 0.2.8.17, 0.2.9.14, 0.3.0.13, 0.3.1.9, and 0.3.2.6-alpha, which add an IPv6 address for the bridge authority bastet.
ticket blog post |
| 2017-11-15 | <OR> Relays |
Release of Tor Browser 7.5a8, containing tor 0.3.2.4-alpha, which adds a new directory authority bastet, and changes the IP address of the directory authority Longclaw.
blog post |
| 2017-11-15 | meek |
Outage of meek-amazon bridge.
ticket |
| 2017-11-14 | <OR> Relays |
Release of Tor Browser 7.0.10, containing tor 0.3.1.8, which adds a new directory authority bastet, and changes the IP address of the directory authority Longclaw.
blog post |
| 2017-11-11 to 2017-11-12 |
Outage of the op-hk OnionPerf instance.
op-hk graph |
|
| 2017-11-10 | ipv4 ipv6 |
geoip and geoip6 databases updated to "November 6 2017 Maxmind GeoLite2 Country" (geoip-db-digest E3C910F3B2A6C916C7BE33A943091EF57048B72C, geoip6-db-digest E8BD5B2E6554C27F718F1222667C09680D75F799).
commit |
| 2017-11-01 | meek |
Turned off the old meek-amazon CDN endpoint d2zfqthxsdq309.cloudfront.net.
mailing list post |
| 2017-10-25 | <OR> Relays |
Release of tor 0.2.5.15, 0.2.8.16, 0.2.9.13, 0.3.0.12, and 0.3.1.8, which add a new directory authority bastet, and change the IP address of the directory authority Longclaw.
blog post Bastet blog post bastet ticket Longclaw ticket |
| 2017-10-14 | snowflake |
Activated client IP address statistics on the Snowflake server and standalone proxies.
comment |
| 2017-10-05 | ipv4 ipv6 |
geoip and geoip6 databases updated to "October 4 2017 Maxmind GeoLite2 Country" (geoip-db-digest 3A59213E5CFEE380F544B72DC1105366C6BD1CDE, geoip6-db-digest 1B8C975E5C62CF0FB5B4E598AE27B7189952BB09).
commit |
| 2017-10-04 | fte |
Permanent hardware failure of default FTE bridge 128.105.214.161:8080.
comment |
| 2017-09-15 to 2017-10-12 |
Outage of the op-hk OnionPerf instance. Reported timeouts on the tor network increased, download speed improved.
mailing list post torperf graph torperf-failures graph op-hk graph |
|
| 2017-09-15 to 2017-09-16 | Bridges |
The bridge authority was down due to an issue with its offline master key.
graph mailing list post |
| 2017-09-14 to 2017-09-16 | Bridges |
Outage of the bridge authority Bifroest.
|
| 2017-09-07 | ipv4 ipv6 |
geoip and geoip6 databases updated to "September 6 2017 Maxmind GeoLite2 Country" (geoip-db-digest 0CE9EA8882EDED265451C36B49AE7BBB06A11C16, geoip6-db-digest C4573496EBD1CC335843067107DA49E482568FF6).
commit |
| 2017-09-02 to 2017-09-21 | obfs4 Unknown |
About a 35% increase in obfs4 users before returning to normal. Happened in many countries. Other transports do not have it.
graph |
| 2017-09-01 to 2017-09-20 | obfs4 |
A flood of over 4,000 obfs4 bridges nicknamed "Machiavelli".
graph of number of bridges tor-relays post metrics-team thread tweet |
| 2017-08-14 to 2017-08-15 | Bridges |
Outage of the bridge authority Bifroest.
mailing list post mailing list post graph |
| 2017-08-14 | ipv6 obfs4 Unknown |
Jump in IPv6 users of the Lisbeth default obfs4 bridge.
comment |
| 2017-08-10 to 2017-08-11 |
Outage of the op-hk OnionPerf instance. Reported timeouts on the tor network increased, download speed improved.
torperf graph torperf-failures graph op-hk graph |
|
| 2017-08-08 | snowflake |
Tor Browser 7.5a4 released, including Snowflake for macOS.
blog post |
| 2017-08-03 | ipv4 ipv6 |
geoip and geoip6 databases updated to "August 3 2017 Maxmind GeoLite2 Country" (geoip-db-digest 75AABD32582AC554AF252DDC7BBBABE7C6F28B28, geoip6-db-digest A52EFFEF8CF6F3CAA8EBD34961361544E959FAE1).
commit |
| 2017-07-31 to 2017-08-28 | Unknown |
Directory authorities using 2× bandwidth.
mailing list post for start mailing list post for end post suggesting link to nl, ro, lt, sc increases |
| 2017-07-29 to 2017-08-17 | meek |
Outage of meek-amazon bridge, caused by an expired certificate.
Relay Search expired certificate new certificate |
| 2017-07-07 | ipv4 ipv6 |
geoip and geoip6 databases updated to "July 4 2017 Maxmind GeoLite2 Country" (geoip-db-digest 3D04F191098640F2E03B4D5F7800088D14B7EC30, geoip6-db-digest A3649B9E909C59942FB3D8F874AB4BEA36E8BEC1).
commit |
| 2017-07-04 to 2017-07-21 | obfs4 |
Outage of default obfs4 bridge frosty.
mailing list post |
| 2017-07-04 to 2017-07-21 | obfs4 |
Outage of default obfs4 bridge dragon.
mailing list post |
| 2017-07-02 |
deb.torproject.org upgrades from tor 0.2.9 to tor 0.3.0
relay versions graph tweet |
|
| 2017-06-26 to 2017-07-02 | obfs4 |
Outage of default obfs4 bridge dragon.
mailing list post |
| 2017-06-26 to 2017-07-03 | obfs4 |
Outage of default obfs4 bridge frosty.
mailing list post |
| 2017-06-20 | meek |
Outage of meek-azure bridge.
start end |
| 2017-06-19 to 2017-06-23 | obfs4 |
Outage of default obfs4 bridge dragon.
mailing list post |
| 2017-06-18 to 2017-06-23 | obfs4 |
Outage of default obfs4 bridge frosty.
mailing list post |
| 2017-06-12 | obfs4 |
Increased the file descriptor limit on default obfs4 bridges ndnop3 and ndnop5 from 4096 to 32768. They had been failing bootstrap attempts from a test location in the U.S. about 40% of the time.
graph showing failed connections |
| 2017-06-09 | ipv4 ipv6 |
geoip and geoip6 databases updated to "June 8 2017 Maxmind GeoLite2 Country" (geoip-db-digest AFD609025B66305AD9FA8E0B15AF4F2BC82271F1, geoip6-db-digest A69FD14ACE46EE695F589ACE0EB7B915285B51B4).
commit |
| 2017-06-07 | ipv6 obfs4 |
Tor Browser 7.0 released. Adds an IPv6 address for default obfs4 bridge Lisbeth. Adds new default obfs4 bridges frosty and dragon.
blog post IPv6 ticket frosty and dragon ticket |
| 2017-05-25 | obfs4 |
Set AssumeReachable 1 on the default obfs4 bridges cymrubridge31 and cymrubridge33 in an attempt to make them publish statistics.
mailing list post |
| 2017-05-23 to 2017-06-13 | obfs4 |
Default obfs4 bridge LeifEricson rejects connections due to a broken firewall forwarding rule. This didn't affect the bridges "real" obfs4 port, but it did affect the port at that time configured in Tor Browser.
|
| 2017-05-08 | ipv4 ipv6 |
geoip and geoip6 databases updated to "May 2 2017 Maxmind GeoLite2 Country" (geoip-db-digest B2E5105287668771E34A66F90B34982D419727EF, geoip6-db-digest 8DA8AC3C8158CBFDF7DB53BBF73338246872371A).
commit |
| 2017-05-06 | snowflake |
Set AssumeReachable 1 on the Snowflake bridge 2B280B23E1107BB62ABFC40DDCC8824814F80A72 in an attempt to make it start publishing statistics.
mailing list post |
| 2017-04-30 | meek |
The meek-amazon bridge upgrades to meek-server 0.27.
|
| 2017-04-20 | meek obfs4 scramblesuit |
Tor Browser 7.0a3 is released. It changes the app.update.url. It removes the last remaining scramblesuit bridge. It changes the meek-amazon backend. It adds the new default obfs4 bridges cymrubridge31:80 and cymrubridge33:80.
blog post |
| 2017-04-19 | meek obfs4 |
Tor Browser 6.5.2 is released. It changes the app.update.url. It changes the meek-amazon backend. It adds the new default obfs4 bridges cymrubridge31:80 and cymrubridge33:80.
blog post comment about app.update.url |
| 2017-04-14 to 2017-08-20 | <OR> |
Directory authority maatuska's bwscanner stops operating, leading to a drop in traffic on some relays.
tor-consensus-health post about start tor-consensus-health post about end tor-dev thread analysis |
| 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 |
| 2016-12-09 | 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 |
| 2016-10-30 | meek |
Increased the rate limit on the meek-amazon bridge to 3.0 MB/s, from 1.0 MB/s.
|
| 2016-10-28 | meek |
Decreased the rate limit on the meek-amazon bridge to 1.0 MB/s, from 3.0 MB/s.
|
| 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 |
| 2016-10-05 | ipv4 ipv6 |
geoip and geoip6 databases updated to "October 4 2016 Maxmind GeoLite2 Country" (geoip-db-digest C14DF5AE94101562DEACDD296278B0EFA3EA26E5, geoip6-db-digest A88A828020A558D37F97CF683D4521270F0511A2).
commit |
| 2016-09-28 | meek |
Rate limit on the meek-amazon bridge returns to 3.0 MB/s, having been set to about 1.0 MB/s for some time, cause uncertain.
|
| 2016-09-24 | obfs3 |
Default obfs3 bridge LeifEricson upgrades and begins reporting statistics to the new bridge authority Bifroest. This is the last obfs3 bridge that hadn't upgraded.
|
| 2016-09-24 | obfs4 |
Default obfs4 bridge LeifEricson upgrades and begins reporting statistics to the new bridge authority Bifroest. This is the last obfs4 bridge that hadn't upgraded.
|
| 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.)
|
| 2016-09-23 | obfs3 |
Default obfs3 bridges ndnop0 and ndnop2 upgrade and begin reporting statistics to the new bridge authority Bifroest.
post on bridges not reporting statistics |
| 2016-09-23 | obfs3 |
Default obfs3 bridges "Unnamed" and "Unnamed" (fingerprint AF9F66B7B04F8FF6F32D455F05135250A16543C9) upgrade and begin reporting statistics to the new bridge authority Bifroest.
|
| 2016-09-23 | obfs4 |
Default obfs3 bridges ndnop3 and ndnop5 upgrade and begin reporting statistics to the new bridge authority Bifroest.
post on bridges not reporting statistics |
| 2016-09-20 | meek |
macOS 10.12 (Sierra) is released, breaking some programs that are built with Go <1.7, including the meek-client that comes with Tor Browser. (See 2016-11-15 unbreaking event.)
ticket |
| 2016-09-07 | ipv4 ipv6 |
geoip and geoip6 databases updated to "September 6 2016 Maxmind GeoLite2 Country" (geoip-db-digest 72F8AD2CD7C97D173AD53276366EAD32B13E0A50, geoip6-db-digest B6427DEAD2291FBF8311A2233AF4960BF4009713).
commit |
| 2016-09-02 | Bridges |
The former bridge authority Tonga shuts down. Bridges that have not updated to tor 0.2.8.7 or 0.2.9.2-alpha (which include all 5 default obfs3 bridges and 3/16 default obfs4 bridges) stop reporting statistics.
shutdown notice blog post loss of reporting bridges |
| 2016-08-31 | Bridges |
CollecTor begins publishing bridge stats from the new bridge authority Bifroest.
post |
| 2016-08-24 | Bridges |
tor 0.2.8.7 and 0.2.9.2-alpha are released, changing the bridge authority from Tonga to Bifroest.
0.2.8.7 announcement |
| 2016-08-18 | meek |
Changed the meek-amazon CDN price class from "All" to "Use Only US, Canada and Europe."
|
| 2016-08-12 | ipv4 ipv6 |
geoip and geoip6 databases updated to "August 2 2016 Maxmind GeoLite2 Country" (geoip-db-digest 9DD185BEC4F482DDD20A0221B3DD3F40175F0123, geoip6-db-digest B1C1B6BDC9627E3D87530A2C70578AC69C20C5C6).
commit |
| 2016-07-18 | ipv4 ipv6 |
geoip and geoip6 databases updated to "July 6 2016 Maxmind GeoLite2 Country" (geoip-db-digest 19FC902B6A860BA7E4BADCB5404482995F7E0763, geoip6-db-digest 7E717154718F2065240B90F8132F305AF78C9A9D).
commit |
| 2016-06-12 | ipv4 ipv6 |
geoip and geoip6 databases updated to "June 7 2016 Maxmind GeoLite2 Country" (geoip-db-digest DA31976A9C7D48C2C16EA70BCE9006772A0F4A34, geoip6-db-digest FF1DD08CA9EB6528E1A6389E7154BD9586F24370).
commit |
| 2016-06-01 | Kazakhstan <OR> obfs4 |
Kazakhstan blocks vanilla Tor TLS. Users mostly switch to obfs4.
ticket |
| 2016-05-30 | fte |
Tor Browser 6.0 released, which lacks the fte pluggable transport on Mac.
6.0 blog post ticket |
| 2016-05-13 | meek |
meek-google's App Engine instance is suspended and meek-google stops working.
mailing list post |
| 2016-05-09 | ipv4 ipv6 |
geoip and geoip6 databases updated to "May 4 2016 Maxmind GeoLite2 Country" (geoip-db-digest 76631C314A048A59A1D801515CC7FD55CE719499, geoip6-db-digest C9392F0337A7509F1187890925CF7006F884ECBA).
commit |
| 2016-04-28 | fte |
Tor Browser 6.0a5 and 6.0a5-hardened released, which lacks the fte pluggable transport on Mac.
6.0a5 blog post 6.0a5-hardened blog post ticket |
| 2016-04-07 | ipv4 ipv6 |
geoip and geoip6 databases updated to "April 5 2016 Maxmind GeoLite2 Country" (geoip-db-digest F9DFB82B6F1A480F07F4B87992CBFB7A48CB8DA2, geoip6-db-digest 769B499E6AE9FE0C2366141B931A3DB1B5489114).
commit |
| 2016-03-27 to 2016-03-31 | meek |
Temporarily ran an experimental branch for IPv6 counting on the meek-azure bridge.
task-18460-2 branch |
| 2016-03-27 | meek |
Outage of meek-azure bridge, caused by an expired TLS certificate.
|
| 2016-03-04 | ipv4 ipv6 |
geoip and geoip6 databases updated to "March 3 2016 Maxmind GeoLite2 Country" (geoip-db-digest A34F49E5A871FA4D243C46C04B67BB3CAAFE6F74, geoip6-db-digest 9C8C4F7C7612849C88206726FCDA8CB85B8D27F3).
commit |
| 2016-02-04 | ipv4 ipv6 |
geoip and geoip6 databases updated to "February 2 2016 Maxmind GeoLite2 Country" (geoip-db-digest 9E16EDBB826B958A7B8B84674EA98B78C13F1177, geoip6-db-digest DF9538534517275080F8335DDEE4B879A3314ED4).
commit |
| 2016-01-16 | meek |
Increased rate limit of the meek-amazon bridge to 3 MB/s, from 1.1 MB/s.
|
| 2016-01-15 | meek |
Increased rate limit of the meek-google bridge to 3 MB/s, from 1.1 MB/s.
|
| 2016-01-14 | meek |
Increased rate limit of the meek-azure bridge to 3 MB/s, from 0.8 MB/s.
|
| 2016-01-11 | meek |
Enabled client IP statistics on the meek-amazon bridge.
comment |
| 2016-01-07 | ipv4 ipv6 |
geoip and geoip6 databases updated to "January 5 2016 Maxmind GeoLite2 Country" (geoip-db-digest 44FC92E4D3F8C9A3A49EE9A594790C52E684298A, geoip6-db-digest BB261912C96611967FE5C1AE2700C965DBB8D61C).
commit |