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The term telemetry refers to the collection of certain usage data to help improve the quality of a piece of software. Dendron uses telemetry primarily for collecting usage data.

This page describes the overall telemetry approach for Dendron, what kind of data is collected and how to opt-out of data collection.

Why does Dendron collect metrics?

Telemetry helps us better understand how many users are using our products and how often they are using our products. Unlike many telemetry services, our telemetry implementation is intentionally limited in scope.

We use telemetry to answer the following questions:

  • how many people are actively using Dendron?
  • how performant is Dendron over time and how do new changes impact performance?
  • what features are most useful for users?

What is not collected

Dendron will never collect data inside your notes. We believe that your personal knowledge is for your eyes alone.

What is collected

The below is a collection of common fields that are collected

appstringCurrently installed version of the product (e.g. 1.0.0-rc0)
ideVersionstringCurrently installed version of the IDE (e.g. 1.0.0-rc0)
userAgentstringThe specific IDE in question(e.g. VSCodium)
archstringClient's operating system architecture (e.g. amd64).
osstringClient's operating system (e.g. darwin).
nodeVersionstringClient's node version (e.g. v12.12.0).
anonymousIdstringRandom, non-identifiable signature nanoID (e.g. JC6NXxDa0lDFD1Mu7U2Ga)
timestampstringWhen the request was made

When is data collected?

Data is collected in scenarios that are described below.


When Dendron initializes, we collect data about on initialization time. This helps us measure the performance impact of changes that run before startup as well as improvements to our indexing performance over time.

durationnumberNumber of seconds for startup
numNotesnumberNumber of notes across all vaults (rounded to the nearest 10 notes)
numVaultsnumberNumber of vaults in workspace
noCachingbooleanCheck whether caching is disabled

Tutorial Progression

When Dendron starts for the first time, it launches users into a tutorial workflow. We track how far along the tutorial you get using the Tutorial_{num}_Show event. This helps us figure out how effective our intro documentation is.


When Dendron is first installed or upgraded, we collect information about both previous and current versions. This helps us plan deprecation policies.

previousVersionstringPrevious version of Dendron
durationnumberNumber of seconds for startup


When lookup is performed, Dendron collects profiling information for different phases of lookup. This helps us measure the performance impact of optimizations and features we add to lookup.


  • Lookup Show: when lookup is presented
  • Lookup Update: when lookup items are updated
  • Lookup Accept: when a result from lookup is accepted
flavorstringWhat kind of lookup ("schema" or "note")
errorbooleanDid an error happen during this phase?
sourcestringWhat initiated the lookup? ("onValueChange", "updatePickerBehavior:journal", etc )
createNewNotebooleanWas a new note created during this phase?


We collect an invocation metric when a commands is invoked. This is to measure command latency as well as detect errors in existing and new commands

errorbooleanDid an error happen during this phase?
durationnumberHow long did it take to execute this command


These are groupings of other metrics we collect. We collect them to gather performance impact and improvements across various features.


  • TreeView Ready: measures when the web ui based TreeView is finished loading
durationnumberHow long it takes for the tree view to be initialized

Telemetry Toggle

When telemetry is disabled or enabled, we collect information about the event to let us get an estimate of the number of untracked clients

reasonenumWhy telemetry was disabled. See values here

How to opt out of data collection

If you've disabled telemetry from the Visual Studio Code Telemetry setting, no further action is needed. You can set this option in your workspace settings, or user settings.

To disable telemetry in Dendron specifically, run the Disable Telemetry command.

Why not have opt-in telemetry?

The goal of telemetry is to make data driven decisions about features and use cases that can make the most difference to our users.

One way we could collect data is to conduct surveys but traditionally, these had very low participation and are also biased towards users that are already active in our community. Having telemetry allows us to collect feedback from our larger user base and avoids this bias.

Opt-in telemetry, at best, gives us a narrow and biased set of users. At this point, we are back to make decisions based on limited data. Opt-out telemetry that is limited in scope is the tradeoff we made in terms of preserving user privacy while still gathering meaningful data that can help improve the product.