Host information

I want hosts, I was using raids to see if I could capture host data the same way. But from the responses I have been getting I guess not.

Ill break it down and hopefully I explain this right (please forgive me)

I want a host alert, I looked over the doc and I see HOSTTARTGET and a chat command , I have no idea which one is which, nor what either one does. I simply want to listen for when a channel hosts me and trigger an alert.