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Debug GAM, Prebid.js, AdX, AdSense, DCM & Pixels. Analyze ad slots, targeting, decoded TCF strings, and header bidding auctions. AdsDebugger is the all-in-one powerhouse designed for Ad Ops, Developers, QA Engineers, and Programmatic Traders who need to visualize, validate, and debug complex ad setups instantly. Stop switching between the console, network tab, and multiple disparate extensions. Whether you are auditing a new header bidding wrapper, troubleshooting a broken line item, or validating GDPR consent strings, AdsDebugger gives you the data you need in a clean, modern interface. ✔ Visual Overlays: Non-intrusive Shadow DOM overlays inject directly over ad slots, showing you Line Item IDs, Creative IDs, and sizes instantly—without breaking the page layout. ✔ Smart Status Indicators: Speed up troubleshooting with intuitive icons. Instantly distinguish between Filled, Unfilled, and Backfill (Dynamic Allocation) requests, and spot critical signals like PPID, Targeting, Ad location, etc., at a glance. ✔ SRA & Request Analysis: Automatically detects and groups Single Request Architecture (SRA) calls vs. individual slot requests. ✔ Advanced ID Detection: Instantly surfaces the Query ID (Display) and Ad Event ID (Video) to trace the ad source. ✔ Smart Size Detection: Automatically identifies complex ad formats including Fluid, Out-of-page, and Interstitials. ✔ Targeting Inspector: View page-level and slot-level key-values in a readable format. ✔ AdSense for Search (AFS): Deep-dive into search ads. Validate query parameters (q), channel IDs, and inspect page-level vs. block-level style settings. ✔ Auction Analytics: Don't just see who won; see why. View a complete breakdown of every auction, including participating bidders, CPMs, and time-to-respond. ✔ Bidder Health: Identify bidders that are timing out or returning "No Bid" responses. ✔ Ad Unit Validation: Verify that your ad unit codes match your configuration. ✔ VAST XML Interception: Automatically captures and analyzes VAST requests and responses. ✔ IMA SDK Details: Verifies SDK versions, player type, autoplay, and muted statuses. ✔ Pod Debugging: Inspect optimized pods and ad rule playlists. ✔ TCF v2.2 Support: Automatically detects and decodes IAB TCF (GDPR) consent strings into human-readable permissions. ✔ Global Privacy Support: Captures and displays US Privacy (CCPA) strings, COPPA (tfcd) flags, and Non-Personalized Ad (npa) signals. ✔ Floodlight & DCM: Validate Campaign Manager 360 tags and conversion pixels. ✔ Impression & Audience Match Pixels: Verify impression pings (/pcs/view) and audience match tags (cm.g.doubleclick.net) to minimize revenue discrepancies. ✔ Modular Architecture: Enable or disable specific modules (e.g., turn off Prebid if you only work with GAM) to keep your workspace clean. ✔ Ad-Slot-Overlay Preferences: Toggle overlays globally or set them to start "collapsed" by default. ✔ Badge Settings: Choose whether to see the live ad request count directly on your browser toolbar. 🚀 Replace Your Tool Belt: Stop juggling 5 different extensions. We combine a GAM, AdX debugger, Header Bidding, AdSense, DCM viewer, and Pixel helper into one lightweight, high-performance package. ⚡ Workflow Accelerators: Stop manually searching for IDs. We generate direct "One-Click Deep Links" to the GAM Troubleshooting tool, Line Item settings, and Creative details for every request on the page. 🔒 100% Privacy Focused: Your data stays in your browser. We do not track, collect, or send your ad data to external servers. 🎨 Zero Layout Shift: Unlike legacy tools, we use modern Shadow DOM technology to ensure our overlays never break the publisher's CSS or page layout. Take control of your ad stack today with AdsDebugger. We are committed to building the best tool for the ad tech community and we want to hear from you! • Visit our site: https://adsdebugger.com • Submit bugs & feature requests: https://adsdebugger.com/contact
Ad Tracker v1.26 BETA
Provides a clean output of all GTM ad request/response info. Not compatible with AMP or video ads. By Mark Bland (C) 2025 Ad Tracker simplifies ad troubleshooting by providing detailed insights into ad calls and responses for sites using Google Publisher Tags. It displays key ad data such as: -Ad sizes and units -Key-value pairs -Advertiser, order, line item, and creative IDs -RTB/Header Bidding auction results How It Works: -Install the extension and load a website with ads in Chrome. -Click the Ad Tracker button in the bottom-left corner of your browser. -A popup window will display detailed ad call and response data. Features: -Easily view ad request details for troubleshooting or optimization. -Popup can be resized, moved, minimized, or reopened by reloading the page. -Designed for ad ops professionals, including publishers, advertisers, and agencies. Quickly access and analyze ad information directly in your browser on page load.
PubMatic PA Debugger
This Chrome extension helps debug publisher sites where both Prebid.js and Protected Audience (PA) auctions occur on the same page. It maps PA auctions to GPT ad slots also used in Prebid.js auctions, offering insights into ad unit configurations, SSP/seller identification, bid details, interest group insights, and auction winners. It also includes a detailed timeline and efficiency analysis of auction events.
Professor Prebid
Extension to validate your prebid.js setup, list AdUnits and bids, visualise latencies and timings of your webpages header-bidding… Extension to validate your prebid.js setup, list AdUnits and bids, visualise latencies and timings of your webpages header-bidding partners, override CPMs and filter bidders for troubleshooting.
AdTech Ad Inspector
AdTech Ad Inspector allows you to monitor and view Google Publisher Tag (GPT) ad units and their associated targeting on web pages. AdTech Ad Inspector allows you to monitor and view Google Publisher Tag (GPT) ad units and their associated targeting on web pages (such as ad unit code, ad size, and custom targeting), The extension should work on all GPT instances that utilise the standard ad tagging library. AdTech Ad Inspector builds upon the foundations of the Forbes ad inspector project and further enhances it with bug fixes and all new features including: Google Ad Manager Real-time view of Google Ad Manager ad delivery, ad units, page and slot targeting. JW Player Overview of your JW Player instance, including ad delivery and config data. Prebid.js Comprehensive view of your prebid.js header bidding auctions and bidders. Lotame (DMP) Overview of your lotame instance, including audience segments, ID and config data. Permutive (DMP) Overview of your permutive instance, including audience segments, ID and config data. This application uses Open Source components from the Forbes Ad Inspector project. We acknowledge and are grateful to these developers for their contributions to open source.
