从您的网站中删除 WWW 前缀 [英] Remove WWW prefix from your website

问题描述

当作为 URL 的一部分输入时，Stack Overflow(和其他网站)如何删除www"前缀?

How does Stack Overflow (and other web sites) remove the 'www' prefix when it's entered as part of a URL?

它是重定向、重写还是其他完全不同的东西?

Is it a redirect, a rewrite or something else entirely?

更新:我特别想在 IIS 6 的上下文中了解

Update: I'd specifically like to know in the context of IIS 6

推荐答案

启动 Fiddler，我们可以看到 服务器 以301 永久移动"状态响应并将其引用到 http://stackoverflow.com .由于 StackOverflow 托管在 Windows 2k8 IIS7 上，他们直接在 IIS7 中设置了此重定向.

Firing up Fiddler, we can see that the server responses with a "301 Moved Permanently" status and refers it to http://stackoverflow.com . Since StackOverflow is hosted on Windows 2k8 IIS7 they set up this redirect straight away in IIS7.

仅供参考:

HTTP 状态列表

如果您是 .NET 开发人员，您可能知道 "Respose.Redirect" ，这会创建 302 Object Moved 状态.在这种情况下，搜索引擎更喜欢 301 状态代码，因为他们知道他们将来不应该回到 www.stackoverflow.com.

If you are a .NET developer you might know "Respose.Redirect" , this creates a 302 Object Moved status. Search engines like 301 status codes in this case better, because they know they should not come back to www.stackoverflow.com in the future.

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