How to check and resolve ad stacking with PubGuru

PubGuru
Last updated: November 6, 2023 | by Aleesha Jacob
How to check and resolve ad stacking with PubGuru

This post was most recently updated on November 6th, 2023

Ad stacking is an ad setup policy violation wherein two or more layers of ads overlap one another in a single ad slot and only the topmost ad gets the chance to be viewed or clicked but each advertiser for every ad served still pays for the impression regardless of where they appear in the stack.

We have another article that talks about it here: https://www.monetizemore.com/blog/how-detect-stop-ad-stacking/

How to check and resolve ad stacking with PubGuru MonitizeMore

It is most often unintentional but will eventually hurt your reputation to advertisers and can lead to getting your account banned. PubGuru will report the ad stacking instances detected on your site and here are some steps to verify if it is indeed happening and address it accordingly.

Other tools you can try for troubleshooting:

  • BrowserStack – test any URLs on both desktop and mobile, in different browsers, OS, etc.
  • Window Resizer – Chrome extension to resize screen width (this is only for Chrome browser version)

Troubleshooting Steps:

Ad stacking instances are reported in your PubGuru dashboard.

Step1: Log in with your username and password

Step 2: On the left-hand panel, go to Policy Reports > Ad Stacking

Step 3: Click to expand and view more details

How to check and resolve ad stacking with PubGuru MonitizeMore

Step 4: You will see the list of Top URLs, Top Browsers, Top Page Widths where ad stacking was detected. To get more details on the exact scenario when the issue happened, export the report.

How to check and resolve ad stacking with PubGuru MonitizeMore

Step 5: The information on the report will allow you to easily replicate it. You won’t need to test each one of the reported URL + width. You can only select to test a few.

How to check and resolve ad stacking with PubGuru MonitizeMore

Step 6: Try to find the occurrence where your device specification matches the operating system, browser version, device, etc.

Step 7: Open the URL and adjust the resolution based on the reported width. The below example is using Window Resizer.

How to check and resolve ad stacking with PubGuru MonitizeMore

You may also use Chrome Developer Tools > turn on Device Toggle:

How to check and resolve ad stacking with PubGuru MonitizeMore

Then adjust the width:

How to check and resolve ad stacking with PubGuru MonitizeMore

Ad sizes could play a role, so pay attention to the sizes being flagged. For example, a unit configured as multi-sized is colliding with another ad unit only when it’s serving the bigger size.

In some cases, ad sizes are truncated by its parent div, it’s still considered as collision:

How to check and resolve ad stacking with PubGuru MonitizeMore

Step 8: Locate the ads reported. Are the ad units confirmed colliding or stacking?

How to check and resolve ad stacking with PubGuru MonitizeMore

-If yes, you can stop checking here and work on fixing it.

-If not, proceed below.

Step 9: Run PubGuru Ad Inspector. Check under the “Ad Units” tab. In the example below, the ad units are clearly stacked on top of each other. Compare it with the report on your PubGuru dashboard if they match.

How to check and resolve ad stacking with PubGuru MonitizeMore

Turning on Ad Overlay could help so you can easily identify the ads on page.

How to check and resolve ad stacking with PubGuru MonitizeMore

Step 10: Locate the ads reported and work on fixing it. You might want to also try another set of URL and width from the report in case you are unable to replicate it with the other.

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