+# redirect from old vim-only subdomain
+RewriteCond %{HTTP_HOST} ^vim?\.shiar\.\w+$
+RewriteRule ^(vi(?=m$)|.*) http://sheet.shiar.nl/$1 [R=301]
+
+# redirect old locations
+RewriteRule ^vim$ /vi [R=301]
+RewriteRule ^cc$ /countries [R=301]
+
+# forward to https protocol if requested
+RewriteCond %{HTTPS} =off
+RewriteCond %{HTTP:Upgrade-Insecure-Requests} =1
+RewriteRule (.*) https://%{HTTP_HOST}/$1 [L]