It's not enough to just add Analytics code for SPA sites, as it doesn't track client-side navigation. So we have to pass navigation events manually and this component does exactly this.
Install the component:
npm i sapper-google-analytics
And add it to your src/routes/_layout.svelte:
<GoogleAnalytics {stores} id={ga_measurment_id}/> <script> import GoogleAnalytics from "sapper-google-analytics/GoogleAnalytics.svelte" import { stores } from "@sapper/app" let ga_measurment_id = "UA-SOMETHING" // your analytics id </script>