Webflow

1. In Webflow, open Project settings → Custom code.
2. Paste the script into Head code:

index.html
<script defer
  data-website-id="YOUR-SITE-ID"
  src="https://calmstats.com/script.js"></script>

3. Click Save changes, then Publish your site. Custom code only runs on the published site, not in the Designer.

Make sure the domain you added in Calmstats is the one your Webflow site is published on.