Webhint will not send any telemetry unless you opt-in to do so via the prompt or the settings panel.
At any time, you can opt-out again via the option available in webhint's settings panel.

If you decide to opt-in, the information that will be sent is:

• User has opted-in for telemetry
• Hints panel is displayed
• Website analysis started, errored, canceled, timedout, and/or finished (no URLs or results are sent)
• User is active: during the last 28 days, what days has the user run at least one scan. To know more about how this is calculated please see https://github.com/webhintio/hint/issues/3074

We also send the extension version and the browser where it is running (Chrome, Firefox, etc.). This allow us to know the user engagement and if a version is reliable or has any issue we haven't catch before publishing.

FAQ

• Where is the data sent to? To our Application Insights account.
• Is it sent over HTTPS? Yes.
• Is it anonymous? Yes, we don’t store any information related to the user (we don’t have that concept, and we don’t generate any unique identifier at any time) or analyzed URLs.
• Who has access to it? The webhint core team.