Premium Features

How to Setup File Proxy in GTM (Adblocker Bypass)

Modern browsers (like Safari and Brave) and third-party adblockers aggressively block tracking scripts loaded from external domains like googletagmanager.com.

The MucaSST File Proxy solves this issue by routing your GTM tracking script through your own first-party tracking subdomain. This masks the script as a native website asset, ensuring your tags fire reliably and bypassing adblockers completely.


Step 1: Enable File Proxy via Dashboard

Before making any changes to your website, you must enable the feature from your server infrastructure.

  1. Log in to your Client Area.
  2. Navigate to your specific container's Order Details page.
  3. Locate the File Proxy feature and toggle it to the ON position.
  4. Allow approximately 30 seconds for the cloud firewall to update your configuration.

Step 2: Update Your GTM Script Path

When configuring your tracking script using GTM plugins (like GTM4WP or Shopify apps), you will find a field to set a custom tracking path.

  • Custom Path: Simply enter /mucasoft in the path field.

If you are manually adding the GTM snippet to your website's HTML <head>, replace the standard Google URL with your tracking subdomain and the new path:

Standard GTM Script (Before):

<script src="https://www.googletagmanager.com/gtm.js?id=GTM-XXXXXX"></script>

Bypassed GTM Script (Before):

<script src="https://www.yourdomain.com/mucasoft?id=GTM-XXXXXX"></script>