---
title: "TagLens — dataLayer vs GA4 gap inspector – Chrome extension stats, history and permissions"
description: "14 users, rated 5.00 by 1 person. Version 1.2.8, updated 2026-11-05. Requests 6 permissions."
url: "https://extensiontracker.com/extension/cgdhmhfklgpbfhdohaefkdopijhlbmpe"
---

# TagLens — dataLayer vs GA4 gap inspector

Live in the Chrome Web Store.

- Users: 14
- Rating: 5.00 from 1 rating
- Last checked: 2026-11-06 00:04 UTC
- Users gained in 7 days: No change
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #138,950 of 292,131 live extensions
- Rank in Developer Tools: #14,348 of 30,442

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> Browse the site; TagLens records every dataLayer push and analytics hit, and shows what should have fired but didn't.

- Extension ID: `cgdhmhfklgpbfhdohaefkdopijhlbmpe`
- Developer: [hnkhan123.HK](https://extensiontracker.com/developer/u05992dcce0b015117d33b0e9acada556)
- Enhanced Safe Browsing: Trusted ([what this means](https://extensiontracker.com/enhanced-safe-browsing))
- Category: [Productivity › Developer Tools](https://extensiontracker.com/category/productivity/developer)
- First published: 2026-08-22
- Last updated: 2026-11-05
- Version: `1.2.8`
- Size: 590 KiB
- Minimum Chrome: 112
- Languages (1): English
- Privacy policy: `https://hnkhan1233.github.io/taglens-privacy/`
- Chrome Web Store: <https://chromewebstore.google.com/detail/taglens-%E2%80%94-datalayer-vs-ga/cgdhmhfklgpbfhdohaefkdopijhlbmpe>
- View its code or download CRX: <https://crxpeek.com/extension/cgdhmhfklgpbfhdohaefkdopijhlbmpe>
- Search Google for the ID: <https://www.google.com/search?q=%22cgdhmhfklgpbfhdohaefkdopijhlbmpe%22&tbs=li:1>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-11-06 | 14 | 5.00 | 1 |

## What changed

Every change found on a check, newest first.

- 2026-11-13: Now trusted by Enhanced Safe Browsing.

## Developer history

Moves to another publisher account and new contact emails, newest first.

No move to another account and no new contact email since tracking began on 2026-11-06.

We know contact emails only by a keyed hash, so they're never shown. Recent changes: [Account and contact changes](https://extensiontracker.com/owners/).

## What it can access

From the extension's manifest, in plain language.

**Every website:** it can read and change your data on all the sites you visit.

### Sites

- `<all_urls>`: Every website

### Sites where it runs scripts

- `<all_urls>`: Every website

### Browser features

- `debugger`: Use Chrome's debugger on your tabs, which gives full control of their pages
- `storage`: Save settings and data in your browser
- `tabs`: Read the addresses and titles of your tabs
- `unlimitedStorage`: Store more data than the usual limit
- `webRequest`: Watch network requests on the sites it can reach

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 2026-11-06 00:04 UTC; next check around 2026-11-16.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “TagLens — dataLayer vs GA4 gap inspector” (cgdhmhfklgpbfhdohaefkdopijhlbmpe). Chrome Web Store data, last checked 2026-11-06. https://extensiontracker.com/extension/cgdhmhfklgpbfhdohaefkdopijhlbmpe. Accessed 2026-11-13.

```bibtex
@misc{extensiontracker_cgdhmhfklgpbfhdohaefkdopijhlbmpe,
  title   = {TagLens — dataLayer vs GA4 gap inspector (cgdhmhfklgpbfhdohaefkdopijhlbmpe)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-06},
  url     = {https://extensiontracker.com/extension/cgdhmhfklgpbfhdohaefkdopijhlbmpe},
  urldate = {2026-11-13}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/cgdhmhfklgpbfhdohaefkdopijhlbmpe>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Every page except search comes as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.