I'm using the Page Speed Firebug plug-in to check my sites.
But I don't know how to fix the "Leverage browser caching" error, since I don't know you specify a cache lifetime to the browser in images and css files.
Looks like you're using IIS, so you probably want to start with this TechNet document.
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
5 years ago
9 months ago
Get the weekly newsletter! In it, you'll get:
see an example newsletter