Topic: performance

YSlow Review, add-on for the firebug add-on

I’ve been playing around with YSlow, the add-on to the FireBug add-on which analyzes web pages and tells you why they’re slow based on the rules for high performance web sites, and assigns a letter grade. Basically all the sites I am running through it are getting a C grade so I decided to dig deeper. YSlow uses 13 points to come up with the grade. These rules are as follows:

Continue »

How to Boost Your JavaScript and CSS Performance

Lines of markup code per website are growing at a hurried pace these days. JavaScript and CSS files are getting bigger by the day. But you want to keep your site lean and speedy and avoid from becoming slow and bloated. There are some basic techniques I use to optimize JavaScript files and the same ideas can be applied to CSS and HTML files as well. I’ll briefly cover 4 popular solutions, namely validating, joining, shrinking and compressing your markup source code. Continue »