SourceTag
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Installation

Install SourceTag on Wix

Add SourceTag’s tracking script to your Wix site through the Custom Code settings. No Wix apps or marketplace installs needed.

Step 1: Copy your script tag

In your SourceTag dashboard, go to your site’s detail page and copy the script tag. It looks like:

<script src="https://cdn.sourcetag.io/scripts/YOUR_SITE_ID/st.js"></script>

Step 2: Open Custom Code settings

  1. In your Wix dashboard, go to Settings
  2. Click Custom Code (under the Advanced section)

If you don’t see Custom Code, you may need a Wix Premium plan. Free Wix plans don’t support custom code injection.

Step 3: Add the script

  1. Click + Add Custom Code
  2. Paste the SourceTag script tag into the code box
  3. Give it a name like “SourceTag”
  4. Under Add Code to Pages, select All pages
  5. Under Place Code in, select Head
  6. Click Apply

Step 4: Publish

Click Publish on your Wix site. The script won’t be active until the site is published.

Step 5: Test

Visit your published site with UTM parameters:

https://yoursite.com/?utm_source=test&utm_medium=cpc&utm_campaign=wix-test

Open your browser’s developer tools (F12 or Cmd+Option+I on Mac) and check:

  1. View page source or the Elements panel to confirm the script tag is present in the <head>
  2. Application > Cookies to confirm a _sourcetag cookie has been created
  3. Submit a form on your site and check the form notification. You should see attribution data in the hidden fields.

Notes

  • SourceTag works with Wix forms, though Wix’s native form builder has limited hidden field support. For reliable results, use an HTML embed with a custom form. See the Wix form fields guide for details.
  • If you’re embedding third-party forms (Typeform, JotForm, etc.) via HTML embed on Wix, the script will detect those too via MutationObserver.
  • Browser cookies are limited to 7 days on Wix. There’s no server-side cookie option for Wix sites. See Safari Cookies for details.
  • Wix Premium (or higher) is required for custom code injection. The free plan does not support it.

Doesn't answer your question or need more help? Get in touch.