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sGTM - add X-Gtm-Server-Preview Header

By Nikel

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

Time on the storeAbout 1 to 3 yearsA rough range, not an exact date
Store users268As shown on the Chrome Web Store
Chrome Web Store rating5.0 / 52 ratings on the Chrome Web Store
Last store update17 Sep 2026Version 1.1.1, 22 days ago

Inside the extension

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Permissions & access

Access levelHigh

Can read and change every website you visit.

What it’s allowed to do, not what it actually does. Not a safety rating.

Permissions 4

Sensitive1

  • Read and change data on every website<all_urls>

Standard3

  • Save its own settingsstorage
  • Block or redirect requests with set rulesdeclarativeNetRequest
  • Run tasks on a schedulealarms

Members also see when a new version asks for new access.

Website access All

  • All websites
Extension ID
noalljmmmkeagbllkcnpklbogbogmdka
Package size
678KiB
Manifest
Version 3

The maker

This is the only listing we know of from Nikel.

Listings
1
Combined store users
≈268
Store Featured
0

Combined users can count the same person more than once. Maker profile

Ext Watch AI

Should you build in this niche?

One research report for sGTM - add X-Gtm-Server-Preview Header. Reports come with Plus, Pro and Max.

  • Takeaway & demandCited takeaway and search volumes
  • Traffic & domainPopularity rank, visits and authority
  • Money & pricingPlans and prices from the maker’s site
  • ReviewsComplaints and praise, quoted
  • Competitors & ranksRank against the closest listings
  • Build opportunityWhat to build and how to position it
  • Every number shows its source and date
  • Ready in a minute or two
  • Report and PDF yours for 30 days
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