Header Bidding Ad Inspector Header Bidding Ad Inspector

Bidscape analyzes header bidding requests to help publishers with setup and to show users how much money their browsing is worth. Header Bidding Ad Inspector promo image
What is Header Bidding Ad Inspector? Header Bidding Ad Inspector is a Chrome extension by mars. This extension has 574 weekly active users, an average user rating of 3.00, and was removed from Chrome Web Store 9 months ago. The latest version, 1.1.9, was updated 4 years ago.

This extension was removed from Chrome Web Store on 2022-05-05
Stats date:
By: mars
Users: 574
Rating: 3.00 (2)
Version: 1.1.9 (Last updated: 2019-01-20)
Creation date: 2019-01-16
Manifest version: 2
  • activeTab
  • storage
Featured: No
Size: 119.81K
Email: Click to see
Risk impact: Moderate risk impact
Risk likelihood: High risk likelihood
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Not available on Firefox
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Summary Header Bidding Ad Inspector is a display advertising inspection tool. It integrates with Google Ad Manager's googletag,'s header bidding pbjs, and Amazon AUM's header bidding apstag in order to help adops professionals with ad setup and debugging.

You can see detailed targeting parameters, all the bids from amazon and prebid auctions, winners, rendered ads, and viewability percentages to make sure that the correct ads are rendering on each of your pages and that that viewability stays high. Supports refreshing ads and infinite scroll.

As a regular user you can use the tool to see how much advertising revenue you're generating for each page that you visit while browsing the web. This amount will be reported in CPM, the amount a website would get paid for 1000 of impressions like yours.

Unfortunately, the CPM amount is a lower estimate based on the header bidding data avilable from prebid and it's not always possible to get the exact amount due to a lack of transparency on all ad delivery platforms. So you will usually see a much lower value than what websites will actually make. It is a decent lower bound.

Tool will automatically appear when it detects that ads are displaying on the page being browsed and show up in the top right corner of the page window. 

You can disable it completely by clicking on teh icon in the extensions menu bar in your browser.
Risk impact Header Bidding Ad Inspector requires some risky permissions and may not be safe to use. Exercise caution when installing this extension. Review carefully before installing.

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypass your security settings, and access your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Risk likelihood Header Bidding Ad Inspector may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Chrome extension, especially ones with higher risk impact and/or higher risk likelihood.

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User reviews
This piece of garbage is breaking my browser's behavior, adding and duplicating random ads
by Lachezar Gadzhev Lachezar Gadzhev, 2021-03-31
View all user reviews
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The manifest file declares the requirements and permissions that a Chrome extension will have access to. By reviewing the manifest, you may be able to determine if a Chrome extension is over-reaching (for example, if an extension is overriding your new tab page, or search provider, or requesting access to your web activities without any good reason).

  "update_url": "",
  "name": " Header Bidding Ad Inspector",
  "short_name": "",
  "version": "1.1.9",
  "description": "Bidscape analyzes header bidding requests to help publishers with setup and to show users how much money their browsing is worth.",
  "permissions": [
  "background": {
    "scripts": [
    "persistent": true