Whonix ™ Census

From Whonix


Whonix ™ User Count Statistic[edit]

Table: Whonix ™ Project Metrics

Daily Whonix-Gateway ™ Users
15 March 2019 3,682
24 August 2019 4,107
17 October 2019 4,446
8 February 2020 5,326
31 March 2020 5,887
1 March 2021 8,236

The user count is manually updated on occasion, but it is a low priority.

The daily Whonix-Gateway ™ users estimate is impacted by several factors:

  • Total number of Whonix ™ users: The total Whonix ™ user population is probably higher than the number of daily Whonix-Gateway ™ users.
  • New day, still running, new count: A Whonix-Gateway ™ that runs longer than one day (24 hours) will re-fetch the Whonix ™ warrant canary and therefore be counted again.
  • New day, new boot, new count: A Whonix-Gateway ™ that has not been run for more than one day (24 hours) will re-fetch the Whonix ™ warrant canary and therefore be counted again.
  • Duplication: Users relying upon multiple Whonix-Gateway ™ are counted multiple times; this is difficult to avoid with the current design (see next section).
  • Non-duplication: Boots are not explicitly counted. Users counts that rely upon the number of Whonix-Gateway ™ boots would lead to overestimates because many users start and shutdown their computers several times a day.
  • Non-Live: Live users are not counted.

Whonix ™ User Count Design[edit]

There are strict requirements for the Whonix ™ user count:

  • no transfer of private information
  • no unique identifiers are utilized
  • no collection of IP addresses [1]
  • count only once within a 24 hour period
  • provide an option to disable user counts
  • a by-product of, and based on systemcheck's automated Warrant Canary Check [2]
  • downloaded over Tor using the Whonix ™ v3 onion service [3]
  • secure operation [4]

The census design was inspired by Clean Insights (Privacy-Preserving Measurement) [archive], [5] Matomo [archive], [6] Tor Metrics [archive], Tails boot statistics [archive] [7], Prio [archive] [8] and Privacy-Preserving Telemetry [archive] by Mozilla. [9] For further details, see: Warrant Canary Check.

Whonix ™ User Count Rationale[edit]

A user count statistic provides several benefits:

  • Whonix ™ maintainers can track if the user population is increasing over time.
  • Certain people or organizations decide whether to contribute based on the estimated impact of the Whonix ™ project.
  • Statistics can help answer certain questions such as the estimated user population of different anonymity platforms.
  • Direct comparisons between the number of Tor, Tails and Whonix ™ users become possible.
  • Users can make an informed decision about fingerprinting risks. [10]
  • User counts can inform broader Internet and network fingerprinting considerations.
  • The data is already available due to systemcheck's automated verification of the Whonix ™ warrant canary. [11]

Disable Whonix ™ User Count[edit]

Refer to the following systemcheck chapters:

Forum Discussion[edit]

See Also[edit]


  1. By using an onion service, the server has no way to log originating IP addresses. The website privacy policy is different, see:
  2. Which verifies the Whonix ™ warrant canary.
  3. This is similar to how sdwdate fetches time from onion time sources.
  4. This process has identical security to the Warrant Canary Check.
  5. Developed by the Guardian Project [archive].
  6. Formerly Piwik, which is a free and open source web analytics application.
  7. Private, Robust, and Scalable Computation of Aggregate Statistics by Stanford University.
  8. Like whether they prefer sharing the same network fingerprint as thousands of other users (Whonix ™) versus millions of other users (Tor Browser in isolation).
  9. Previously Whonix ™ News.

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