The default refresh rate for Organic Ads is 30 seconds, meaning the ads on a page will be refreshed every 30 seconds. This is a global setting that impacts all ad placements on all sites unless a more targeted refresh rate is defined using a Custom Refresh Rate.
Please note that the Refresh Rate has been optimized for site/ad performance and shouldn't need to be changed. Additionally, due to Google ad policy we do not allow refresh rates below 30 seconds.
NEXT: Custom/Advanced Refresh Rates