Has component api documentation moved?

I just bought the SignaturePad component, and when I right click the component in visual studio and select Open API Documentation, it goes to this URL:

http://componentsapi.xamarin.com/?link=root:/signature-pad

That host doesn't seem to exist. URLs I've found in this forum are on the same host. Is there a corrected link? Or is the host just down at the moment? (This is my first component, so I've not used this host before.)