tedster - 4:24 am on Oct 13, 2012 (gmt 0)
One of the features of mod)pagespeed that I don't know how to duplicate myself - but it looks extremely useful - is this functionality:
This sounds to me like a real boon. First, image size is one of the most common areas that I see slowing down page loads. For many websites, especially those with a frequent publication schedule, optimizing images creates a real snag in the workflow. In fact, many just abandon any effort at good image compression and let their authors upload very fat files.
But even more useful as I see it, is catering to the Apple Retina displays at the same time as you cater to conventional displays and even small screens where you still want a small image. It seems to me you could upload just one image file optimized for Retina screens, and let the server step it down for other users.
In terms of usage, I think many will find this section good to know, whether you want to avoid the module or embrace it:
We're working with Go Daddy to get mod_pagespeed running for many of its 8.5 million customers... We're also working with Cotendo to integrate the core engine of mod_pagespeed as part of their Content Delivery Network (CDN) service.