I am trying to optimize a site which loads terribly. I already reordered, compressed and minified js and css, but the biggest problem are the images. This site has some real
First important thing to check - make sure the images are cacheable. Sometimes caching of images is disabled. The way to check this is a direct call to the webserver:
telnet localhost 8080
GET /images/flibble.gif HTTP/1.0
And see what is returned. It should return something like Expires: or Cache-Control.
This page seems to describe it well: http://www.web-caching.com/mnot_tutorial/how.html
The other trick is to specify the size of the images in the tag. This vastly improves performance because the browser doesn't need to wait until the page is loaded.