Hummingbird only analyzes performance for top-level site

I need to check the performance of another site on my network (smithstaffing.com); however, Hummingbird only seems to be checking the performance of the top-level site. I've been searching through the support forum and googling for nearly an hour on this and, unless I'm an idiot, it's either not supported or it's more complicated than RTFM. What do I need to do?