web.config
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<httpRedirect enabled="false" destination="http://www.onestopweb.cn" exactDestination="false" childOnly="false" httpResponseStatus="Permanent" />
<urlCompression doStaticCompression="true" doDynamicCompression="true" />
<defaultDocument>
<files>
<clear />
<add value="index.html" />
<add value="index.php" />
<add value="index.htm" />
<add value="index.asp" />
</files>
</defaultDocument>
</system.webServer>
<system.webServer>
<rewrite>
<rules>
<rule name="WWW Redirect" stopProcessing="true">
<match url=".*" />
<conditions>
<add input="{HTTP_HOST}" pattern="^onestopweb.cn$" />
</conditions>
<action type="Redirect" url="http://www.onestopweb.cn/{R:0}" redirectType="Permanent" />
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>
里面的这一段代码
<system.webServer>
<rewrite>
<rules>
<rule name="WWW Redirect" stopProcessing="true">
<match url=".*" />
<conditions>
<add input="{HTTP_HOST}" pattern="^onestopweb.cn$" />
</conditions>
<action type="Redirect" url="http://www.onestopweb.cn/{R:0}" redirectType="Permanent" />
</rule>
</rules>
</rewrite>
</system.webServer>
解决了主域名和www域名同一站点301重定向问题,例如输入 baidu.com,则跳到 www.baidu.com。有利于做SEO优化。提高www域名的访问量,提高www域名的排名。