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Mobile Friendly Tester
Scan your ad tag to detect if it's mobile friendly.
Check 32+ ad quality tests for ad performance — validate against IAB display ad guidelines
Mobile Friendly
This ensures the ad is optimized for mobile devices.
Why do we test it?
With a large percentage of traffic coming from mobile, ads need to be responsive and efficient on smaller screens. Ensuring the ad is mobile-friendly improves reach and engagement.