You may use any of the following for a homepage of a directory:
index.htm
index.html
index.php
index.phtml
index.shtml
index.php3
default.htm
default.html
default.phtml
default.php
default.php3
If there is not one here that you want to use please use the file .htaccess in public_html to set your own custom default e.g. to set myfile.html as default index file, this should go in .htaccess file
DirectoryIndex myfile.html
