If you’d like to boost your earnings from your sticky footer ad, one option is to turn off the close button, removing the ability for users to close it out. This keeps the ad on the screen longer, allowing for more ad impressions, and leading to a potential 2–3% revenue increase from that ad unit.
Many readers have gotten used to closing a sticky footer ad, so we recommend thinking through your user experience strategy and making sure you're comfortable adopting this setting.
Turn off your sticky footer close button via the Ad Preferences page in your dashboard. Look for the setting under Ad Options > Ad Controls, and turn on the toggle.