301 redirection code in various situations

XI sishu switched the 301 required in Seo workCodeSorted, added to favorites, and shared for reference.

 

1. Set IIS 301

Internet Information Service Manager-> virtual directory-> redirect to URL, enter the target URL to be redirected, and select "permanent resource redirection ".

2. Code redirection in ASP 301

<% @ Language = VBScript %>
<%
Response. Status = "301 moved permanently"
Response. addheader "location", "http://www.lesishu.cn/articles/301"
%>

3. 301 redirection code under ASP. NET

<SCRIPT runat = "server">
Private void page_load (Object sender, system. eventargs E)
{
Response. Status = "301 moved permanently ";
Response. addheader ("location", "http://www.lesishu.cn/articles/301/");
}
</SCRIPT>

4. php 301 redirection code

Header ("HTTP/1.1 301 moved permanently ");
Header ("Location: http://www.lesishu.cn/articles/301 ");
Exit ();

5. The 301 redirection code in cgi Perl

$ Q = new CGI;
Print $ q-> redirect ("http://www.new-url.com /");

6. 301 redirection code under JSP

<%
Response. setstatus (301 );
Response. setheader ("location", "http://www.lesishu.cn /");
Response. setheader ("connection", "close ");
%>

7. Switch to code 301 in Apache

Create a new. htaccess file and enter the following content (mod_rewrite must be enabled ):

1) switch the domain name without WWW to the domain name with WWW

Options + followsymlinks
Rewriteengine on
Rewritecond % {http_host} ^ lesishu.cn [Nc]
Rewriterule ^ (. *) $ http://www.lesishu.cn/#1 [L, r = 301]

2) redirect to a new domain name

Options + followsymlinks
Rewriteengine on
Rewriterule ^ (. *) $ http://www.lesishu.cn/#1 [L, r = 301]

3) use regular expressions for 301 redirection to achieve pseudo-static

Options + followsymlinks
Rewriteengine on
Rewriterule ^ news-(. +) \. html $ news. php? Id = $1

Add news. php? Ids0123the address is directed to news-123.html.

8. Configure 301 redirection in vhosts. conf under Apache

To achieve URL standardization, Seo usually redirects a domain name without WWW to a domain name with www. The configuration in vhosts. conf is as follows:

<Virtualhost *: 80>
Servername www.lesishu.cn
DocumentRoot/home/lesishu
</Virtualhost>

<Virtualhost *: 80>
Servername lesishu.cn
Redirectmatch permanent ^/(. *) http://www.lesishu.cn/#1
</Virtualhost>

In addition to the preceding two methods in Apache, there are other configuration methods and optional parameters. We recommend that you read the Apache documentation.

301 steering Condition Detection

1. Http://www.seoconsultants.com/tools/headers.asp
2. Http://www.internetofficer.com/seo-tool/redirect-check/

Author: Yan sishu
Original: dianshi interactive search engine optimization blog