Does your Joomla website has some links (URLs) needing to redirect? You can use Redirect core component of Joomla. However, it just does 1 type 301 redirection (Moved Permanently) and doesn't support to redirect URLs with Regular Expressions.
Luckily, we have a free component which allows you control almost types of redirection and http error codes. This below inforgraphic of SEOmoz can help you understand them and how they are important in SEO.
So what is the component? It's ReDJ component. You can check out it here. The following is its features:
+Manage redirection URLs, support macros & regular expressions for URLs
+Support to define 404 page quickly
+Support to statistic http error codes which are got and their visited URLs
+Support to statistic referrer URLs
And you can use it to:
+Solve SEO problems
+Create short URLs and use them with your domain (like they are created from bitly.com)
THE END ./.