Comments on: Efficient dual caching of dynamic web content http://mansjonasson.se/2008/02/11/efficient-dual-caching-of-dynamic-web-content/ Sun, 28 Feb 2010 07:26:57 +0100 http://wordpress.org/?v=2.9.2 hourly 1 By: Måns http://mansjonasson.se/2008/02/11/efficient-dual-caching-of-dynamic-web-content/comment-page-1/#comment-2526 Måns Mon, 11 Feb 2008 17:53:14 +0000 http://mansjonasson.se/wordpress/2008/02/11/efficient-dual-caching-of-dynamic-web-content/#comment-2526 Alexander, thank you for your comments. What you say is basically true, and in a "standard" forum setup, far-future expires headers are definately our friend. In my case, I have a somewhat "weird" forum setup, in which the order of posts is reversed, so the pages will be different pretty much every time somebody posts in the thread. Even so, far-future expires headers are very important for many reasons, some of which I intend to talk about in a not-so-far-future blog post. :) /M; Alexander, thank you for your comments. What you say is basically true, and in a “standard” forum setup, far-future expires headers are definately our friend. In my case, I have a somewhat “weird” forum setup, in which the order of posts is reversed, so the pages will be different pretty much every time somebody posts in the thread.

Even so, far-future expires headers are very important for many reasons, some of which I intend to talk about in a not-so-far-future blog post. :)

/M;

]]> By: Alexander Klimetschek http://mansjonasson.se/2008/02/11/efficient-dual-caching-of-dynamic-web-content/comment-page-1/#comment-2525 Alexander Klimetschek Mon, 11 Feb 2008 16:48:12 +0000 http://mansjonasson.se/wordpress/2008/02/11/efficient-dual-caching-of-dynamic-web-content/#comment-2525 If the forum entries / profile snippets are not changing upon profile changes (eg. new signature, number of posts written up-to-now, ...), all pages except the last one of a forum thread are fixed and will never change. Thus they can get a far-future expires header and the browser will handle it. If the cached-page loading is still much slower than with the Ajax-caching you mention, improve the overall HTML (navigation, CSS, scripts, etc.) for performance. I once did a lot of Ajax for loading new "pages" faster to find out that standard website performance improvement tricks (eg. put CSS at top, script includes at the end of body,...) can be really fast as well. Note that I mean loading "big content" parts of the site, not those small snippets or autocompletion features for which Ajax is the only choice for better usability through speed. See http://developer.yahoo.com/performance/ If the forum entries / profile snippets are not changing upon profile changes (eg. new signature, number of posts written up-to-now, …), all pages except the last one of a forum thread are fixed and will never change. Thus they can get a far-future expires header and the browser will handle it. If the cached-page loading is still much slower than with the Ajax-caching you mention, improve the overall HTML (navigation, CSS, scripts, etc.) for performance.

I once did a lot of Ajax for loading new “pages” faster to find out that standard website performance improvement tricks (eg. put CSS at top, script includes at the end of body,…) can be really fast as well. Note that I mean loading “big content” parts of the site, not those small snippets or autocompletion features for which Ajax is the only choice for better usability through speed.

See http://developer.yahoo.com/performance/

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