Blank AdSense ads typically appear on your website when you have incorrectly implemented your tags. However, if you’re certain you’ve correctly implemented your ad tags, the blank ads could be running because there aren’t any paying line items that meet your criteria.
The blank ad units show up when you’ve created new ad unit sizes but there aren’t any house line items that match your size. Every time a blank ad appears, though, you’re losing revenue. Making sure your ad units are always displaying ads is critical to your website’s revenue; don’t lose money through careless errors.
Related Read: DFP Cheat Sheet for Beginners: Creating Ad Units
Fortunately, this is a fairly easy problem to solve. Just book a run-of-network house line item for every single unit size. That way, whenever you run out of ad units that match one size, your ad unit will run to the next line item.
Related Read: DFP Cheat Sheet for Beginners: Targeting Line Items
If these troubleshooting tips don’t work, make sure that you have removed all inactive DFP ad tags, correctly set up all the line items that target the ad unit (including eligibility and targeting), and ensure that the ad units are live. You may have to wait up to 20 minutes after approving the line item.
Check out: More Reasons Why Blank Adsense Ads Appear
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