如何使用.htaccess将example.com.tw重定向到example.com？

Question

Summary

I have bought two domains, both 'example.com.tw' and 'example.com'. I hope that when a user input 'example.com.tw' in the address bar, it can redirect to 'example.com' automatically. Below is my try.

My try

RewriteCond %{HTTP_HOST} ^www\.example\.com\.tw [NC]
RewriteRule ^ http://www.example.com%{REQUEST_URI} [R=301,L,NE]

Questions

1. Is it correct above?
2. Is there any better way to improve the code above?

The issue is that when a user input the subdomain (Such as: 'news.example.com.tw'), will it redirect correctly? (Will it redirect to 'news.example.com' successfully?)

Answer 1

To remove the .tw TLD:

Assuming both domains point to the same place and any subdomains are simply in subdirectories off the main domains document root (or point to the document root of the main domain itself). Then, in your root .htaccess file:

RewriteEngine On
RewriteCond %{HTTP_HOST} ^(.*)\.tw$
RewriteRule ^ http://%1%{REQUEST_URI} [R=302,L]

Replace 302 (temporary) with 301 (permanent) when you are sure it's working OK.