AdStackLens

Inspect ad networks and iframe hierarchy on web pages

AdStackLens reveals the complete advertising technology stack on any webpage — directly in your browser, without leaving the page. Hover over any ad to instantly see the ad network, size, and serving details. Open the detail panel to explore Prebid.js bids with CPMs, GPT slot targeting, Amazon APS data, and nested iframe hierarchies. DUAL DETECTION ENGINE Two complementary detection layers working together: - CSS selector matching detects ad containers from Google AdSense, Google Ad Manager, Amazon APS, Criteo, and many more - SDK introspection reads runtime data directly from Prebid.js, Google Publisher Tag, and Amazon APS APIs Combined, these layers give you the complete picture that no single method can — fast, organized, and right where you need it. WHAT YOU CAN SEE - Prebid.js: bid responses, CPMs, bidder names, ad server targeting - Google Publisher Tag: slot paths, sizes, targeting key-values, out-of-page config - Amazon APS: slot IDs, sizes, and targeting parameters - Iframe hierarchies: nested structures and ad serving chains across cross-origin frames - Custom CSS selectors: add your own rules to detect any service the built-in rules miss BUILT FOR AD TECH PROFESSIONALS - Publishers: audit your own setup, verify slots render correctly, catch revenue leaks from misconfiguration - Ad Operations: troubleshoot live campaigns by inspecting GPT config, targeting, and SDK parameters in seconds - Competitive Analysis: see exactly which ad networks and header bidding partners your competitors run - Sales & Partnerships: walk into prospect meetings with data on what ad tech they already use PRICING Free: 3 domains per month, all features included, no account required. Pro: $49 USD per year (less than $4.10/month, billed annually). Unlimited domains. 14-day money-back guarantee. Cancel anytime — your last installed version keeps working with all Pro features available at the time of cancellation. PRIVACY AdStackLens runs entirely in your browser. No page content, URLs, or detection results are sent to any external server. All detection and analysis happens locally on your machine. LEARN MORE Website: https://www.unplus.net/adstacklens/ Privacy Policy: https://www.unplus.net/adstacklens/privacy/ Terms of Service: https://www.unplus.net/adstacklens/terms/