The Apache Web Server provides a couple ways to issue 301 Redirects from within .htaccess or httpd.conf files.

When do you need a 301 Redirect?

  • When you change your domain name
  • When you change a URL
  • When external links pointing to your site or pages are old or invalid

301 Redirects using mod_alias

Using mod_alias we have access to these directives: Redirect, RedirectMatch, RedirectPermanent, and RedirectTemp. You only need to know that RedirectMatch allows pattern matching and Redirect is only for a single file.

301 Redirects using Redirect

Redirect 301 /2007/webmaster/custom-phpini-with-fastcgi-on-dreamhost.html http://www.askapache.com/dreamhost/custom-phpini-with-fastcgi-on-dreamhost/
Redirect 301 /2007/phpbb/sending-post-form-data-with-php-curl.html http://www.askapache.com/htaccess/sending-post-form-data-with-php-curl/
Redirect 301 /htaccess.txt /wp-content/uploads/p/htaccess.txt
Redirect 301 /2007/webmaster/php-and-ajax-shell-console.html http://www.askapache.com/tools/php-and-ajax-shell-console/
Redirect 301 /2007/webmaster/custom-phpini-with-fastcgi-on-dreamhost.html http://www.askapache.com/dreamhost/custom-phpini-with-fastcgi-on-dreamhost/

301 Redirects using RedirectMatch

RedirectMatch 301 ^/(.*).htm$ http://www.askapache.com/$1.html
RedirectMatch 301 ^/200([0-9])/([^01])(.*)$ http://www.askapache.com/$2$3
RedirectMatch 301 ^/category/(.*)$ http://www.askapache.com/$1
RedirectMatch 301 ^/(.*)/htaccesselite-ultimate-htaccess-article.html(.*) http://www.askapache.com/htaccess/
RedirectMatch 301 ^/(.*).html/1/(.*) http://www.askapache.com/$1.html$2
RedirectMatch 301 ^/manual/(.*)$ http://www.php.net/manual/$1
RedirectMatch 301 ^/dreamweaver/(.*)$ http://www.askapache.com/tools/$1
RedirectMatch 301 ^/z/(.*)$ http://s.askapache.net/$1

301 Redirects with mod_rewrite

mod_rewrite is a powerful Apache module, and you should read more about it before you cause a problem.

301 Redirects using mod_rewrite

RewriteRule .* http://www.askapache.com/$1 [R=301,L]

RewriteRule ^(.*).html([^c]+)comment-(.+)$ http://www.askapache.com/$1.html#comment-$3 [R=301,L,NE]

Htaccess

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