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DFP troubleshooting tools

Find the right tool to solve your issue

Inspect a page's delivery or simulate requests

See which ads delivered to your page, why these ads delivered and not others, if line items and creatives are configured correctly, and more. Simulate ad requests and help determine why a different ad delivered than the one you expected. Use this tool for desktop, mobile web, mobile app, or video line items.

Delivery Inspector (3:59)



Diagnose line items

  • Click a line item's Troubleshoot tab to see why a line item didn't deliver over the past 7 days, even though it was eligible for an ad request.
  • Preview creatives associated with a line item to verify that they're displaying and tracking clicks correctly.
  • View the change history for a line item, or other objects throughout DFP, to see what updates might have contributed to an issue.

Help me troubleshoot delivery


Verify your tags

Video Suite Inspector
See if the issue is with an VAST tag or with the webpage itself. Check response from VAST tag; Get sample VAST tag. Go there now

Troubleshoot video ads (7:38)

DFP Tags Generator
Customize and generate ad tags without having to manually edit the code. Go there now


Google Publisher Console
Check for common GPT tagging errors, identify all of the ad units on your webpage, and view delivery diagnostics in DFP.

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