SvelteKit
Add the script to app.html.
SvelteKit renders every page inside src/app.html.
Steps
Open src/app.html.
Paste this just before the line with %sveltekit.head%:
<script defer data-site-id="YOUR-SITE-ID" src="https://spintaxifycms.com/js/analytics.js"></script>Build and deploy.
Check it works
Open your site in a normal browser window (not one where you are logged in as admin, if you excluded admin pages). Then open Analytics in Spintaxify. Within a few seconds Online now shows 1, and the setup card ticks Install the script.
Tip: your site ID is in Analytics → Settings → General. Copy the snippet from there and it is already filled in.
Something missing? Contact us and tell us what you were looking for.