性能 – 目录斜杠重定向？这还会发生吗？

我正在阅读关于 Yahoo’s “Best Practices” for speeding up a website的文章 referenced by Jeff Atwood,我注意到这个小宝石：

One of the most wasteful redirects
happens frequently and web developers
are generally not aware of it. It
occurs when a trailing slash (/) is
missing from a URL that should
otherwise have one. For example, going
to
07002
results in a 301 response containing a
redirect to
07003
(notice the added trailing slash).
This is fixed in Apache by using Alias
or mod_rewrite, or the DirectorySlash
directive if you’re using Apache
handlers.

这还会发生吗？随着网络的发展,这篇文章很老了.我想我多年来一直这样做.我不认为我最近发现了这种情况,但我再也没有注意过.这是Apache的事吗？ IIS 7是否这样做？

我很害怕.抱着我.

试试吧！

以下是从终端运行的一些截断请求.

curl -I  http://astrology.yahoo.com/astrology

HTTP/1.0 301 Moved Permanently
Date: Tue, 21 Jun 2011 13:24:24 GMT
Location: http://shine.yahoo.com/astrology/


curl -I http://wordpress.org/extend

HTTP/1.0 301 Moved Permanently
Server: nginx
Date: Tue, 21 Jun 2011 13:26:17 GMT
Location: http://wordpress.org/extend/

虽然看起来IIS以另一种方式做到了：

curl -I http://www.iis.net/overview

HTTP/1.0 200 OK
Server: Microsoft-IIS/7.0

curl -I http://www.iis.net/overview/

HTTP/1.0 301 Moved Permanently
Location: http://www.iis.net/overview

猜猜这取决于你如何配置它,但它绝对是优化的东西.