apache redirect to www

#强制重定向到wwwRewriteengine onRewritecond%{http_host} ^jb51.net/[NC]Rewriterule ^ (. *) $ http://www.jb51.net/$1 [l,r=301]#强制重定向到不带www的顶级域名Rewriteengine onRewritecond%{http_host}!^jb51.net/$ [NC]Rewriterule ^ (. *) $ http://jb51.net/$1 [l,r=301]Apache

Domain names without WWW and without WWW are not the same thing: the former is called the root domain name, and the latter is the second-level domain name of the former. For a long time, people have become accustomed to bringing WWW when visiting

Believe that a lot of webmaster friends have such problems appear. That is, the domain name with the WWW prefix and the top-level domain name without the WWW prefix are different. This problem is mainly due to the search engine for the top-level

: This article describes how to redirect a domain name from www to non-www, Apache, and Nginx2. For more information about PHP tutorials, see. Background: jump from www to non-www. Both http://www.jiutianniao.com and http://jiutianniao.com are

Permanent page removal (301 redirects ) is a very important "auto-steering" technology. One of the most feasible ways to redirect URLs. When a user or a search engine makes a browse request to the Web server, one of the status codes in the header

From a search engine optimization perspective, the current 301 redirect is the most feasible way to redirect the site directory changes. After you change the address using 301 Redirect, the search engine will only index the new address, but also the

Background: www jump to non-www. Both http://www.jiutianniao.com and http://jiutianniao.com can be accessed. However, want to redirect the www to non-www, the input is more simple, so that the search engine also treat them as the same 1 sites. 2

1, IIS under 301 settings Internet Information Services Manager-> virtual directory-> to a URL, enter the destination URL that needs to be redirected, and select Permanent redirect for resources. In IIS, you can also implement features such as

Apache. the 301 redirection in htaccess enables the website to be collected from a domain name without a www domain name: create a file redirect in the root directory. htaccess with Options + FollowSymlinksRewriteEngineonRewriteCond % {HTTP_HOST} ^

When we build the station will be based on their own habits with the www or without the WWW domain name as the main domain name, for this point is not too much of a strict requirement is to use WWW or non-www domain name, but in foreign sites to see