index.html , index.shtml , index.php what do you allow?
 

as in the topic

which index file do you allow?

and

1) do you allow java script in index.html?
2) do you allow in index.shtml and index.php ?

blah
 

generally its index.html
but, if linklists can goto your free site FOLDER (without typing index.xxx) and see their recip that should be fine. the recip just needs to be on the default page that shows up when you goto domain.com/free-site/

depending on what your javascript does i dont see a problem with it, nor the php. but that of course depends on what it does.