The loader is the only thing you embed in Webflow. Once installed, every Cairn script you publish to that site ships through this tag — no further embeds, no Webflow republish.
How it works
Cairn uses Webflow’s Data API v2 to write a single <script> tag into your site’s project-level custom code section. From then on, Cairn delivers script payloads through that loader on every page load.
One-click install
- In Cairn, open a site.
- Click Install loader.
- Cairn confirms the loader is in place and shows the embed snippet for reference.
The loader is idempotent — clicking install again on a site that already has it just verifies it’s up-to-date.
Manual install (fallback)
If you’d rather paste the loader yourself, copy the snippet from the site’s Loader page and add it to Webflow → Project settings → Custom code → Head.
<script src="https://cdn.cairn-script.com/v1/loader.js" data-site="{your-site-id}" async></script>
Verifying the install
Open any page on the site and check the browser console: Cairn logs a one-line confirmation Cairn Script loader vX.Y.Z in dev mode. 
