AdStackLens - Ad Tech Stack Inspector

Tracking since Apr 17, 2026.

Changelog

• May 21, 2026
  description

  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 — after cancellation, you revert to the Free tier (3 domains/month) and can resubscribe whenever you need unlimited access again.
  
  
  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/

  Inspect any site's complete ad tech stack — ad networks, header bidding bids, ad server slots, SDK data, and iframe hierarchies — directly in your browser.
  
  AdStackLens is the fastest way for ad ops, publishers, and programmatic advertising professionals to debug live campaigns, audit competitor ad tech setups, and uncover ad serving chains without leaving the page.
  
  Hover over any ad to instantly see the network, size, and serving details. Open the detail panel to explore live bid responses with CPMs, slot targeting parameters, header bidding auction data, and nested cross-origin iframe hierarchies.
  
  
  DUAL DETECTION ENGINE FOR COMPLETE AD STACK VISIBILITY
  
  Two complementary detection layers work together to map the full ad tech stack:
  
  - CSS selector matching identifies ad containers across major ad networks and SSPs commonly used by publishers worldwide
  - SDK introspection reads runtime data directly from supported header bidding libraries and ad server tags to surface live bid data, slot configuration, and targeting parameters
  
  Combined, these layers give you the complete ad stack picture that no single detection method can provide — fast, organized, and right where you need it.
  
  
  WHAT YOU CAN INSPECT
  
  - Ad placements: identify and visualize every ad slot on the page
  - Ad server slots: slot paths, sizes, targeting key-values, out-of-page configurations
  - Header bidding: bid responses, CPMs, bidder names, ad server targeting, auction timeouts
  - SDK data: live data from supported ad tech SDKs including auction results and bidder parameters
  - Iframe hierarchies: nested ad serving chains across cross-origin frames
  - Custom CSS selectors: add your own detection rules for any ad network the built-in rules miss
  
  
  BUILT FOR AD TECH PROFESSIONALS
  
  PUBLISHERS & MEDIA OWNERS
  Audit your own ad tech setup, verify ad slots render correctly, and catch revenue leaks from header bidding misconfiguration before they cost you CPM.
  
  AD OPERATIONS
  Troubleshoot live campaigns by inspecting slot targeting, header bidding bids, and SDK parameters in seconds. No more guessing why a campaign is underdelivering.
  
  COMPETITIVE & MARKET ANALYSIS
  See which ad networks, SSPs, and header bidding partners power competitor sites. Useful for media planners, business development, and ad tech sales teams researching prospect accounts.
  
  SALES & PARTNERSHIPS
  Walk into prospect meetings with hard data on what ad tech the publisher already uses — instead of asking blind discovery questions.
  
  
  PRICING
  
  Free: 3 domains per month, all detection 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 — after cancellation, you revert to the Free tier (3 domains/month) and can resubscribe whenever you need unlimited access again.
  
  
  PRIVACY
  
  AdStackLens runs entirely in your browser. No page content, URLs, or detection results are sent to any external server. All ad tech 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/

• May 21, 2026
  short_description

  See what's behind every ad. Detect ad networks, inspect Prebid bids, GPT slots, and iframe hierarchies on any site.

  Inspect any site's ad tech stack — ad networks, header bidding, ad server slots, SDK data, and iframe hierarchies. For ad ops.

• May 21, 2026
  name

  AdStackLens

  AdStackLens - Ad Tech Stack Inspector

• May 15, 2026
  description

  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/

  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 — after cancellation, you revert to the Free tier (3 domains/month) and can resubscribe whenever you need unlimited access again.
  
  
  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/

• May 15, 2026
  short_description

  Inspect ad networks and iframe hierarchy on web pages

  See what's behind every ad. Detect ad networks, inspect Prebid bids, GPT slots, and iframe hierarchies on any site.

• May 10, 2026
  description

  AdStackLens reveals the complete advertising technology stack on any webpage — directly from your browser.
  Hover over any ad element to see which ad network serves it, its size, and how it was detected. The detail panel shows live data from Prebid.js (bid responses, CPMs, bidder names), Google Publisher Tag (slot paths, targeting key-values), and Amazon APS (slot IDs, targeting parameters).
  Two detection layers work together:
  
  CSS selector matching finds ad containers from Google AdSense, Google Ad Manager, Amazon APS, Criteo, and more
  SDK introspection reads runtime data directly from Prebid.js, GPT, and Amazon APS APIs
  
  Built for ad tech professionals — publishers, ad ops teams, media planners, and ad tech sales.
  Free: 3 domains per month, all features included, no account required.
  Pro: $49 one-time payment for unlimited domains.
  No data is collected. All detection and analysis runs locally in your browser.

  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/

Permissions & access

Permissions

activeTabscriptingstoragewebNavigation

Host access

None declared

Screenshots

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