After creating an account, installing the NitroPack Connector and connecting your website, you can access your NitroPack Dashboard.
To do so, log in to nitropack.io, and click on the "Dashboard" button. You will see this screen:
This panel gives you an overview of how many pages have been optimized by NitroPack. You also see how long ago a cached page was purged.
Clicking the large number gives you a breakdown of the number of cached pages for every page type - mobile, tablet, and desktop.
This panel gives you a general overview of your subscription and resource usage.
Use this panel to compare your PageSpeed score and other stats before and after the NitroPack optimizations.
Just remember that the results are cached on your web browser for 24 hours. You can trigger another inspection by clicking the Refresh icon at the top right of the panel. The assessment may take up to several minutes for recently connected sites.