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Meta ad.size Detector

Upload your HTML5 Ad to check if the meta tag ad.size is present.

Collect 39+ data points and validate against IAB ad guidelines

HTML5 Zip
Ad Tag
VAST
Video
Image
Audio
 
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Drop your HTML5 Ad here
Format: ZIP
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API Docs
Go ahead, try
it yourself !

Meta tag ad.size

The meta ad size defines the dimensions of the ad unit, such as width and height, that the HTML5 ad will display in.

Why do we test it?

Correct meta ad size ensures that the ad fits within the intended space on the publisher's site. Mismatched sizes can cause the ad to display incorrectly, negatively affecting the user experience and possibly leading to ad rejection by publishers. Some publishers require it to streamline their ad operations.