What is a Popunder Ad?

A popunder ad is a type of online advertisement that opens in a new browser window or tab behind the current page. Unlike intrusive popups, popunders appear after the user has finished their session, making them less disruptive while still effectively capturing attention.

Benefits for Advertisers

• High visibility — users see the ad when they close their current window
• Full-page format allows for rich, immersive ad experiences
• Typically lower CPM than premium display placements
• Works across all devices and browsers
• No banner blindness — full page view guaranteed

Benefits for Publishers

• High CPM rates compared to other ad formats
• Non-intrusive — doesn't interfere with primary content
• Easy implementation with a single line of code
• Compatible with other monetization strategies

Best Practices

Effective popunder advertising relies on quality targeting, appropriate frequency capping (typically 1-2 per user per 24 hours), and compliant landing pages that deliver value to users.