Set 301 redirect (all)

When multiple domain names direct to your site,301 jumpIt is a common page Jump method for each website. For Seo, it has the following functions:

1,301 jump is a jump method recognized by the search engine. That is to say, jumping from a web site to another web site is not punished by the search engine.

2. As mentioned above, this jump method is recognized by search engines. Search Engine designers and considering that a domain name may not always follow a website for a lifetime, with this redirection method, the search engine determines that you "permanently" discard the domain name and enable a new domain name. Then, the search engine will transfer the weight of your old domain name to the new domain name. However, it should be noted that the weight can not be completely transferred through the 301 jump, which is determined by many factors. 301 can only be said to minimize the loss.

301 specific settings

1,IISSettings in Section 301

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

2,ASPLower 301 redirectionCode

<% @ Language = VBScript %>
<%
If request. servervariables ("SERVER_NAME") = "fanhefan-blog.tk" then
Response. Status = "301 moved permanently"
Response. addhead" location "," www. fanhefan-blog.tk"
Response. End
End if
%>

3,ASP. NETNext 301 turn to code

<SCRIPT runat = "server">
Private void page_load (Object sender, system. eventargs E)
{
Response. Status = "301 moved permanently ";
Response. addheader ("location", "www. fanhefan-blog.tk/301/");
}
</SCRIPT>

4,PHPNext 301 turn to code

If ($ http_server_vars ["http_host"] = "fanhefan-blog.tk)

{
Header ("HTTP/1.1 301 moved permanently ");
Header ("Location: www. fanhefan-blog.tk ");
}

5,Cgi PerlNext 301 turn to code

$ Q = new CGI;
Print $ q-> redirect ("www. fanhefan-blog.tk/301 /");

6. 301 redirection code under JSP

<%
Response. setstatus (301 );
Response. setheader ("location", "www. fanhefan-blog.tk/301 /);
Response. setheader ("connection", "close ");
%>

7,ApacheNext 301 turn to code

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 ^ (. *) $ www. fanhefan-blog.tk/301/[L, r = 301]

2) redirect to a new domain name

Options + followsymlinks
Rewriteengine on
Rewriterule ^ (. *) $ www. fanhefan-blog.tk/301/[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>
ServernameWww. fanhefan-blog.tk

DocumentRoot/home/seotest
</Virtualhost>

<Virtualhost *: 80>
Servername seotest.com
Redirectmatch permanent ^/(. *) www. fanhefan-blog.tk/301/