I have had hotlink protection set up and working great on my site, but I am a little confused as today I added an addon domain. I have included it in the list of allowed sites, but its the Extensions to allow and Url to Redirect to part I am confused about.
Currently I only have zip files in the extensions to allow box, because I am not too bothered about images being hotlinked, would it be better to include all extensions, would how its set at the moment create a problem for the addon domain?
Also I have my home page set as the URL to redirect to, would it be better to make a "no hotlinking" banner and upload it, then use that as the URL, now there are two sites on my hosting?
I am going to disable it for a while until I am sure what I need to do.
Thanks in advance for any help

Edit: Don't worry about this now as I have removed the add-on domain.