This built-in dashboard widget uses our REST API to pull out statistics for your account and display common usage per file types as well as number of cache HITs per file. When general usage of CDN functionality doesn't require API connection, you can just insert CDN url you tend to use and save settings ignoring the error regarding API.
But the dashboard widget actually needs it, so make sure to complete the entire implementation process -- including API authorization setup -- in order to get dashboard widget activated.
Main functions within widget allow you to get into your control panel to manage zones, as well as view Usage Overviews:
Create Purge Lists from W3TC Dashboard
The Dashboard Widget also allows you to purge certain files from CDN by creating a list of files you wish to purge:
Cache Hit Analytics
Breakdown statistics per file with HITs overview can be seen on a pie chart, and list below it, sectioned per all file types being pulled from CDN:
We hope this article was helpful. As always, If you have any questions or concerns about any of the topics mentioned in this article, please feel free to reach out to support - we are available 24/7 by chat or email!