"Web front-end base to combat series of courses" Absrtact: Mod_expires&mod_headers can reduce the repeat request of about 10%, so that the duplicate user will cache the result of the specified page request and not make a request to the server at
How Apache implements a static cache can enable Mod_expires&mod_headers
I. Browser caching principleRemove the "#" font size in front of the line, and then save the "httpd.conf" profile and restart Apache to make the update effective.Of course, if
Overview of Apache module mod_expires
This module controlsExpiresHeader content andCache-ControlHeadermax-ageCommand. The validity period (expiration date) can be set to the last modification time relative to the source file or the client access
Original address:http://www.renfei.org/blog/http-caching.htmlEach time you visit a webpage, the browser will usually download the required resources from the server, such as HTML documents, pictures, CSS, JavaScript, and even font files. Many of
Mod_expires installation and configuration to increase website rateImplementing this method will save you incredible amounts of bandwidth and greatly speed up your site for visitors to your site. Basically, for images, CSS, JavaScript and other
We recommend that you install the firebug and yslow plug-ins in Firefox to facilitate debugging.
Golden rule for Web Application Performance Optimization: First optimize the front-end performance, because this is the cost of 80% or more of the end
Explain:The "from cache" is the browser does not confirm with the server, directly using the browser cache;304 Not Modified is a cache that the browser and server have confirmed more than once for cache validity.Trigger difference:The "from cache"
English Original: http://developer.yahoo.com/performance/rules.htmlChinese Original: http://www.ha97.com/2710.html1. Minimize the number of HTTP requests 80% of the end-user response time is used to download the content. This part of the time
The Yahoo team summarizes the experience of website performance optimization, which is of great reference value.English Original: http://developer.yahoo.com/performance/rules.html1. Minimize the number of HTTP requests 80% of the end-user response
Syntax: Expires [TIME|EPOCH|MAX|PFF] Default: Offexpires Command controls the "expires" and "Cache-control" header header information in an HTTP response, and starts controlling the page cache for time: You can use positive or negative numbers. The
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