Question

I want to redirect every URLs contain number at end to subdomain :

http://example.com/773 to http://blog.example.com/773

and not redirect URLs contain strings like this :

http://example.com/web or http://example.com/web/shop or http://example.com/about

i used this htaccess code :

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_URI} ^/[0-9]
RewriteRule (.*) http://blog.example.com/$1 [R=301,L]
</IfModule>

but this htaccess code redirect URLs like this :

http://example.com/773 to http://blog.example.com/blog/773

Answer 1

The rule below will redirect ONLY this sort of URLs only: http://example.com/773. If URL will be like http://example.com/somfolder/773 (with some folder in the path) then nothing will happened.

RewriteEngine On
RewriteBase /

RewriteRule ^(\d+)$ http://blog.example.com/$1 [R=301,L]