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The Ad Validator

The Ad Validator checks your ad for common issues and displays the results in a panel, along with basic information such as the ad environment, the total size of the ad if it were to be published, and its initial load size. The panel automatically updates whenever you make a change, so it always reflects the working version of your ad.

If any checks fail, the panel displays details to help you fix the issue. You can hide or reveal this information by clicking the name of the failed check.

Ad Validator - Google Web Designer

The Ad Validator helps you notice potential problems with your ad, but doesn't guarantee approval. Review the relevant policies to make sure your ad complies with them.

Validation when publishing

When you're ready to publish your ad, you'll see a summary of the checks made by the Ad Validator in the publish dialog. Any failed checks will be listed. The Ad Validator is informational only, so you can still publish an ad that didn't pass all checks.

Validation checks

The Ad Validator runs different checks depending on the ad environment you selected when you first created the document. If your ad fails a check, look up the message in the table below for details.

Message Environment Explanation
File size >150 KB AdMob
AdWords and AdMob ads should be no larger than 150 KB. Reduce the compressed total size of your ad to under this limit.
File size >500 KB DoubleClick DoubleClick ads should be a maximum of 500 KB in size. Reduce the compressed total size of your ad to under this limit.
Unsupported component found AdMob
AdWords and AdMob ads should use only supported components.
Filename >50 characters AdWords The published .zip filename (not including the ".zip" extension) should be no more than 50 characters. Enter a shorter name in the publish dialog.
Badly formed HTML AdMob
Proper document-level HTML tags (such as <!doctype>, <html>, <head>, and <body>) should be present and in the correct order. You can check for these tags in Code view.
Image missing for Image Button AdWords The Image Button component should have images specified for all states: Up Image, Over Image, and Down Image.
Infinite animation loop found AdWords
Animations should not loop indefinitely. Set the number of times an animation should repeat.
Local image source missing AdMob
References to local image source files should be valid. Add missing images to the Library or move them to the referenced location in your file system.
Pages of different sizes AdMob
All pages in the ad should be the same size. AdWords and AdMob do not support expandable HTML5 ads created by Google Web Designer.
Autoplayed video not muted DoubleClick Autoplayed videos should begin muted. Set the Mute property.
Invalid Tap Area event AdMob
A Tap Area component is connected to an event that will not work on mobile devices.
Invalid URL AdMob
URLs should be well-formed and contain no invalid characters. References to assets should use relative paths to resources included in the published .zip file. Exceptions include Google Fonts ( and Google-hosted jQuery ( Add other assets to the Library.
Invalid URL DoubleClick URLs should be well-formed and contain no invalid characters. Absolute URLs should use HTTPS.
Invalid URL HTML URLs should be well-formed and contain no invalid characters.

Ad guidelines and policies

Find more information on requirements for your ads, check the appropriate help center:

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