网站构图设计

$url=$_SERVER['QUERY_STRING'];

{

$url=str_ireplace("404;http://www.***.com/bbs/","http://bbs.***.com/",$url);

$url=str_ireplace("404;http://***.com/bbs/","http://bbs.***.com/",$url);

echo"ahref=".$url."".$url."/a";

}

{

}

前天在DISCUZ论坛看到有朋友说要换地址，想做301转向的，这才仔细研究了下301转向的问题，发现其实之前走了弯路，

直接用301永久转向就行了，况且GOOGLE网站管理员帮助文件中也说明了301转向是可行的：

XML/HTML代码

以下为引用的内容：来源：http://www.google.com/support/webmasters/bin/answer.py？hl=enanswer=93633

If you need to change the URL of a page as it is shown in search engine results， we recommended that you

use a server-side 301 redirect. This is the best way to ensure that users and search engines are directed

to the correct page. The 301 status code means that a page has permanently moved to a new location.

301 网站构图设计 redirects are particularly useful in the following circumstances：

湖州网站建设公司

You‘ve moved your site to a new domain， and you want to make the transition as seamless as possible.

People access your site through several different URLs. If， for example， your home page can be reached in

multiple ways - for instance， http://example.com/home， http://home.example.com， or 镇江网站建设公司 http://www.example.com

- it’s a good idea to pick one of those URLs as your preferred （canonical） destination， and use 301

redirects to send traffic from the other URLs to your preferred URL. You can also use Webmaster Tools to

set your preferred domain.

You‘re merging two websites and want to make sure that links to outdated URLs are redirected to the

correct pages.