Global SSI??????
 

I want a footer at the bottom of each one of my pages -- on each one of my domains...

SSI only works if the file is located on the same domain...

Is there a way to make a global SSI?

on the same domain? or in the same folder or a subfolder? why cant you do include "../../anothersite.com/blah.txt" or whatever? either that or do it with php

I want a global footer that I can put on just one domain and use it on all my other ones...

So I only have to edit the footer on one domain, instead of going through them all...

mod_layout all that you need
(if you using apache)

if you are on a dedicated server.. have your host set up a 'GLOBAL ALIAS' for you... that will do what you want