Where's the cool breakdown table?

It broke. Or, really, the app got moved to a new server, but it was several years old and depended that other stuff that was several years old, and I can't seem to get the right combination of outdated software installed to get the app running again and I don't have the time to update/rewrite everything right now. So, this is all you get. Take it or leave it.

What is a "User Agent"?

A User Agent is a short string that web browsers and other applications send to identify themselves to web servers.

Unfortunately, most browsers falsify part of their User-Agent header in an attempt to be compatible with more web servers.