Most hosting server have a limited redirects, but you can redirects your own URLs with codes
there something call .htaccess with the dot..
create a file with the name .htaccess it like .txt .jpg but don't put any name for it DO NOT put hi.htaccess just put .htaccess
and then let say you have 2 doc
http://abc.com/user.htmland you want it to show what
http://abc.com/index.html showing
you will put this in the .htaccess
RewriteEngin on
RewriteRule ^user.html $ /index.html
that simple

and it might save you money if you try to buy more redirect space ( of course if you not a coding person and it is your first time you might find it diffcult to edit or create this .htaccess )
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