Publisher Tag Debugger icon

Publisher Tag Debugger

by David Vallejo

v0.0.1 Updated Dec 24, 2025 61.23KiB
CWS
23
Users
★ 0.00
0 reviews
#97301
of 207.2K
developer
#8188 of 18.1K

Description

A modern browser extension for debugging Google Ad Manager (GAM) publisher tags. Inspect ad slots, targeting parameters, and response information directly in your browser's side panel. Features: - Ad Slot Detection - Automatically scans pages for Google Ad Manager slots via the googletag API - Slot Analysis - View ad unit paths, sizes, network codes, and MCM parent IDs - Fill Status - Instantly see which slots are filled vs. empty with stats dashboard - Targeting Inspector - Examine page-level and slot-level targeting key-value pairs - Response Details - View advertiser, campaign, creative, and line item IDs for filled slots - Visual Highlighting - Click to highlight any slot on the page with an animated overlay - Dark Mode - Automatic system preference detection with manual toggle Cross-Browser - Works on Chrome (MV3) and Firefox (MV2)
Publisher Tag Debugger screenshot 1Publisher Tag Debugger screenshot 2Publisher Tag Debugger screenshot 3Publisher Tag Debugger screenshot 4

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Permissions (3)

Permissions

scripting Can inject scripts into web pages sidePanel tabs Can see your open tabs and their URLs

Details

Version 0.0.1
Updated Dec 24, 2025
Size 61.23KiB
First Seen Mar 28, 2026