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# c www на без www
RewriteCond %{HTTP_HOST} ^www\.(.*) [NC]
RewriteRule ^(.*)$ http://%1/$1 [R=301,L]	

# с http на https
RewriteCond %{SERVER_PORT} !^443$
RewriteRule .* https://%{SERVER_NAME}%{REQUEST_URI} [R=301,L]	



RewriteCond %{HTTP_HOST} ^site\.su [NC,OR]
RewriteCond %{HTTP_HOST} ^www\.site\.su [NC,OR]
RewriteRule ^(.*)$ https://site.ru/$1 [R=301,L]
	
RewriteRule ^section1/section2/element/(.*)$ https://%{HTTP_HOST}/section1/element/$1 [R=301,L]