Updates docs to have analytics and dashboard

docs/.vitepress/config.ts

@@ -67,6 +67,7 @@ export default defineConfig({
           { text: "Healthcheck", link: "/guide/healthcheck" },
           { text: "Remote Hosts", link: "/guide/remote-hosts" },
           { text: "Supported Env Vars", link: "/guide/supported-env-vars" },
+          { text: "Analytics", link: "/guide/analytics" },
         ],
       },
       {

docs/guide/analytics.md

@@ -0,0 +1,15 @@
+---
+title: Anonymous Analytics
+---
+
+# Data Collection of Analytics
+
+Dozzle collects anonymous user configurations using Google Analytics. _Why?_ Dozzle is an open source project with no funding. As a result, there is no time to do user studies of Dozzle. Analytics is collected to prioritize features and fixes based on how people use Dozzle. This data is completely public and can be viewed live using [dashboard](/guide/usage-dashboard).
+
+## Where is data stored
+
+Dozzle's sends anonymous data to Google Analytics. Retention policy is 14 months which is lowest [possible value for Google Analytics](https://support.google.com/analytics/answer/7667196).
+
+## Opting out
+
+Dozzle analytics helps to prioritize features and spend time on most important features. If you do not want to be tracked at all, use `--no-analytics` flag or `DOZZLE_NO_ANALYTICS` env variable.

docs/guide/usage-dashboard.md

@@ -0,0 +1,9 @@
+---
+title: Usage Dashboard
+---
+
+# Usage Dashboard
+
+This data is based on collected data which is completely anonymous.
+
+<iframe width="1024" height="800" src="https://lookerstudio.google.com/embed/reporting/50f34d3a-3c7e-47b2-a85e-09da19e2a666/page/GbvFC" frameborder="0" style="border:0" allowfullscreen></iframe>