About a year ago, I use YSlow for sometime to analyze my sites performance and other metrics that influence it. It will then suggesting what should be modified to improve it.

YSlow then grading sites based on the points accumulated from different factors. I still remember where Google and Yahoo graded ‘A’ with 99 and 90 points respectively.

So when I stumble about YSlow 2.0 slides today,  it remind me back of YSlow (first version) which only works on Firefox.

The slide filled with lots of technical stuff, but this is basically what YSlow 2.0 going to offered.