# @digi4care/astro-google-analytics
Google Analytics (GA4) integration for Astro 6+ with ClientRouter (View Transitions) and Partytown support.
## Requirements
- **Astro 6.0.0 or higher** — this package does not work with Astro 1–5.
## Installation
```bash
npm install @digi4care/astro-google-analytics
```
## Usage
```astro
---
import { GoogleAnalytics, GoogleAnalyticsNoscript, SiteVerification } from '@digi4care/astro-google-analytics';
---
```
> **Note:** `id` is required. There is no default value — you must pass your real GA4 measurement ID.
## ClientRouter / View Transitions
Page views are automatically re-tracked after client-side navigation. The component listens for the `astro:after-swap` event internally. No extra configuration needed — just make sure you're using `` from Astro.
## Partytown
The `GoogleAnalytics` component supports offloading the GA scripts to a web worker via [Partytown](https://partytown.builder.io/).
### Step 1: Install and configure Partytown in your project
This package does **not** include Partytown. You must install and configure it separately in your Astro project:
```bash
npm install @astrojs/partytown
```
```js
// astro.config.mjs
import partytown from "@astrojs/partytown";
export default defineConfig({
integrations: [partytown()],
});
```
### Step 2: Enable the `partytown` prop
```astro
```
That's it. The component sets `type="text/partytown"` on the script tags, which Partytown picks up and runs in a web worker.
> **Important:** `GoogleAnalyticsNoscript` does **not** support Partytown. It renders a `