Publisher Debug

View and analyze your ad configuration

Publisher Debug (formerly HTL Debug) is a Chrome DevTools panel for ad operations teams and publishers. Open DevTools on any page and inspect its live ad configuration in one place — no console spelunking required. What you can see: • GAM/GPT — ad slots, rendered creatives, slot- and page-level targeting, and slot timing • Prebid — config, auctions at the slot level, user IDs, bidder params, floors, server, modules, and warnings • Amazon — header bidding (apstag) configuration and bids • Cloud Wrapper — whether Aditude Cloud Wrapper is present and initialized on the page • CMP / Consent — TCF, USP, GPP, and GPC signals • Ad requests — every GAM/Prebid ad request, filterable, with full details Plus: highlight ad slots directly on the page, multi-instance Prebid support, and automatic light/dark theming that follows your DevTools theme. Publisher Debug is built and maintained by Aditude, a leading ad technology provider for web and mobile app publishers. Learn more at https://www.aditude.com ## Release notes: ### Version 3.1.1 — release notes (latest) Publisher Debug 3.1.1: • Page-level GPT targeting now stays live — captures every key-value change, including ones set through googletag.setConfig. • Slot details upgraded: fill status at a glance, the winning Prebid bid and bidder, and a collapsible full slot-targeting view. • Clearer navigation: the Googletag tab is now "Page" with GPT Settings and Page Targeting. • Fixed console error spam on sites running HTL BID v3. • Fixed an issue where the extension could interfere with the page's own slot-level targeting clears. --- ### Version 3.0.0 Publisher Debug 3.0.0 is a full rebuild: • Rebranded to Publisher Debug, powered by Aditude, with a refreshed design and automatic dark mode. • New Cloud Wrapper tab that detects whether Aditude Cloud Wrapper is present and initialized. • Rebuilt on a modern, faster stack — the panel bundle is ~9× smaller. • Security: removed all end-of-life dependencies (0 known vulnerabilities). • Same data, same workflows — now quicker and easier to read. Terms: https://www.aditude.com/policies/terms Privacy: https://www.aditude.com/policies/privacy