.htaccess

The .htaccess file is probably not you’re most updated file on your website, but it is crucial to making your website faster.

I found this article on it and its delivers some valuable info. The link is: http://www.javascriptkit.com/howto/htaccess.shtml.

It includes tips on configuring Expires tags, blocking the bad bots out there, changing your site’s index page, etc.

These small configurations will speed up your site and give it a better grade on Yslow(a Firefox plugin that examines the speed of your site – worth checking out).