DirectoryIndex index.php

RewriteEngine On
RewriteCond %{THE_REQUEST} \s/+index\.html[\s?] [NC]
RewriteRule ^index\.html$ / [R=301,L]

RewriteCond %{THE_REQUEST} \s/+index\.php[\s?] [NC]
RewriteRule ^index\.php$ / [R=301,L]
