Are you using display:none and .hide() on ad unit divs? This is what you should do

The “display” property is the most important CSS property for controlling layout. “display: none;” is commonly used with JavaScript to hide and show elements without deleting and recreating them. Hiding an element can be done by setting the “display” property to “none”. The element will be hidden, and the page will be displayed as if the element is not there. https://www.w3schools.com/css/css_display_visibility.asp

Similar to CSS property “display:none”, the “hide()” jQuery method also hides the selected elements. Hidden elements will not be displayed at all. https://www.w3schools.com/jquery/eff_hide.asp

This negatively impacts viewability which advertisers are starting to adapt to as an important metric when buying traffic.

Step 1: Check random pages if this error still pops up.

Step 2: Right-click on the page and click “Inspect”.

Step 3: Click the box with the cursor icon to select elements on the page.

code screenshot

Step 4: Look for the ad unit in question and click on it.

display ad

Step 5: Under the “Elements” tab, you should see “Styles” section.

Step 6: Look for anything that says “display:hidden” or “display:none” or “ .hide()”.

elements and styles screenshot

Step 7: Once confirmed, advise the publisher to stop using it on ad unit divs.

Step 8: If the publisher refuses to do as advised, remove the ad unit from the configuration; or create a separate configuration without the hidden ad unit in it and provide implementation instructions to the publisher.

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