There's an error in the way that LP insists on configuring its servers and DNS
Hmmm... IMHO I don't think there's an error in LP, it's pretty easy to fix this problem, just go to cPanel, select redirects >>
Add Redirect:
http://dietprogramreference.com/ coloncleanserreference.com/ >>
http://www.coloncleanserreference.com/If you want ti have www always which it recommendable and the index page like "/" write this to your .htaccess
<Ifmodule mod_rewrite.c>
Options +Indexes +FollowSymlinks
RewriteEngine on
RewriteBase /
### re-direct index.php to root / ###
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /.*index\.php\ HTTP/
RewriteRule ^(.*)index\.php$ /$1 [R=301,L]
### re-direct non-www to www
rewritecond %{http_host} ^coloncleanserreference.com [nc]
rewriterule ^(.*)$
http://www.coloncleanserreference.com/$1 [r=301,nc]
####
</Ifmodule>
Well if it's html just change instead of php extension.
Hope this help!