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Apache Directives and Modules on DreamHost

Apache .htaccess Directives and Loaded Modules allowed on DreamHost Apache Server 2 Setups.

Hosting

Speed Tips: Remove Last-Modified Header

If you remove the Last-Modified and ETag header, you will totally eliminate If-Modified-Since and If-None-Match requests and their 304 Not Modified Responses.

Htaccess

Speed Tips: Turn Off ETags

By removing the ETag header, you disable caches and browsers from being able to validate files, so they are forced to rely on your Cache-Control and Expires header.

Htaccess | Tags: Cache-Control, ETags

Speed Tips: Add Future Expires Headers

A first-time visitor to your page will make several HTTP requests to download all your sites files, but using the Expires header you make those files cacheable. This avoids unnecessary HTTP requests on subsequent page views.

Htaccess

Caching Tutorial for Webmasters

If you examine the preferences dialog of any modern Web browser (like Internet Explorer, Safari or Mozilla), you'll probably notice a 'cache' setting. This lets you set aside a section of your computer's hard disk to store representations that you've seen, just for you. The browser cache works according to fairly simple rules. It will check to make sure that the representations are fresh, usually once a session (that is, the once in the current invocation of the browser).

Optimization

Speed Up Sites with htaccess Caching

Htaccess