¿Why don’t I have any backed up devices in my settings?

I have a Windows P.C. (Windows 8.1 (Blue)) and a Windows Phone (Windows Phone 8).

Although I have a Windows Phone 7.8 and Windows Mobile 6.5 I know that SkyDrive doesn't back-up their settings, on my other devices I have SkyDrive for automatitic back-up and sync and for some reason it doesn't show that I'm backing up any device, this is most peculiar as I have both a Windows Phone 8 and a Windows P.C. so I must be able to read about the device back ups on the website.

But when I go to my P.C. settings I'll see this:

So I wonder, ¿how can I see where my device settings are on the web? the web app doesn't show anything. :-(

¿Is that meant for these devices?