1. Popunder code not in the <body>. Please make sure that you placed popunder code as the first item of <body> on every page where you want to trigger popunder.
  2. Make sure that you have removed old popunder codes from your website. Codes from ad networks will conflict with AdSpyglass code.
  3. Data-spots and/or data-tag parameters are missing, Re-take popunder code from AdSpyglass panel. It should contain Data-spots and data-tag tags.
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