SourceTag

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" async></script>

[IMAGE: Screenshot of the SourceTag dashboard showing the script tag on the site detail page]

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.

[IMAGE: Screenshot of the Wix dashboard Settings page with Custom Code highlighted]

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

[IMAGE: Screenshot of the Wix Add Custom Code dialogue with the script pasted and Head selected]

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.

[IMAGE: Screenshot of browser developer tools showing the _sourcetag cookie on a Wix site]

Notes

  • SourceTag works with Wix’s native forms. Hidden fields are injected automatically when a form is detected on the page.
  • 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.