Google Ad Manager provides a debugging window that provides additional information about your ad requests and helps you diagnose any unexpected behavior for served ads. This debugging information is displayed in a separate browser window so that the layout of your page isn’t affected.
To display the debugging window for a page that displays Google Ad Manager ads:
- If necessary, disable pop-up blockers in your browser
- Add the ‘google_debug’ query string parameter to your page URL similar to either of the following examples:
- Load the page with your updated URL.
Alternatively, if you’d like to return the ad content but not render ads, add ‘?google_debug&google_nofetch’. This is particularly useful to test third-party latency, as only Google Ad Manager tags, and not third-party tags, will be called. Example:
You can also have your ad contents returned in a new window by adding ‘?google_debug&google_norender’ to your URL. By doing so, you can test your ads outside of your page environment. Example: