#RewriteCond %{HTTPS} !=on
#RewriteRule ^.*$ https://%{SERVER_NAME}%{REQUEST_URI} [R=301,L]
RewriteCond %{HTTP_HOST} ^www.siteadi.com
RewriteRule (.*) https://siteadi.com/$1 [R=301,L]

Böyle dener misin hocam ?