sGTM - add X-Gtm-Server-Preview Header

GA4 & Server-Side Tag Manager debugging helper. This tool helps debug your tracking setup with two key features: 1. It adds the…

As of June 2026, sGTM - add X-Gtm-Server-Preview Header has 298 users and a 5.00/5 rating from 2 reviews in the Developer Tools category.

Usersup 6.8 percent+6.8%
298
298
Ratingno change0%
5.00
2 reviews
Reviewsno change0%
2
Version
1.1.0
Manifest V3

History

2 snapshots

Tracking since Apr 1, 2026.

299.52288.5277.48Apr 1, 2026Jun 1, 2026
View as table
DateUsersRatingReviewsVersion
Apr 1, 20262795.0021.1.0
May 2, 20262895.0021.1.0
Now2985.0021.1.0

Permissions & access

Permissions
storagedeclarativeNetRequestalarms
Host access
https://*/

Screenshots

sGTM - add X-Gtm-Server-Preview Header screenshot 1

About

GA4 & Server-Side Tag Manager debugging helper. This tool helps debug your tracking setup with two key features:

1. It adds the X-Gtm-Server-Preview header to all requests. While there are other "add header value" plugins available, they can cause issues if left enabled, leading to unpredictable behavior when working on another sGTM. This extension includes an auto-deactivation feature: it automatically disables itself after one hour, ensuring a seamless and hassle-free debugging experience.

2. It adds a _dbg=1 parameter to all GA4 requests to enable debug mode for all GA4 requests, making it very simple to debug GA4.

TL;DR:
Add a sGTM preview header value to all requests or enable debug mode for GA4.

Technical

Version
1.1.0
Manifest
V3
Size
680KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
noalljmmmkeagbllkcnpklbogbogmdka
Developer ID
u73daffd17b47f7117c5b7fb7cc82693a
Developer Email
[email protected]
Created
Jul 21, 2024
Last Updated (Store)
Sep 27, 2024
Last Scraped
Jun 1, 2026
Website
Support URL
Privacy Policy

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Data sourced from the Chrome Web Store · last verified Jun 1, 2026.