Google’s Page Speed test recommends the we leverage browser caching. To do this in Windows using IIS, open the site’s web.config and add a client caching directive: <system.webServer> <staticContent> <clientCache cacheControlMode=”UseMaxAge” cacheControlMaxAge=”365.00:00:00″/> </staticContent> </system.webServer> **There are “per file” rules that can be applied but this seems to be sufficient for Google
Pasting this here for future reference (from an email generated by WPMU Dev): Site speed isn’t all about images though – there are heaps of other things to look at, too. I’ve collected a few posts from our blog that nicely sum up what you should look at to get your site operating at 100% …
From: http://www.sitepoint.com/ten-quick-fixes-reduce-page-weight/?utm_source=dlvr.it&utm_medium=facebook You may need to use tools such as Chrome’s Audit Developer Tool, JSLint, Dust-Me Selectors, CSS Usage, unused-css.com or build tools such as grunt-uncss.