We all know slow sites suck. According to research by Amazon, customers buy more when a site is responsive. Google ranks fast sites better.
Using a WordPress case study, I'll take you on a journey through the jungle of web page performance. You'll learn to discern the many factors that are important in performance. I'll show you the techniques, tricks and tools used to overcome slowness.
You'll learn about image, script and stylesheet optimization, roundtrip minimization and why it's important. In addition, you'll discover a unique tool that allows you to do all that automatically.
After this talk you will be able to confidently measure a website's performance, and diagnose the reasons for it being slow. You'll know what to fix and how, and make your customers happy.
From a technical perspective, there are a lot of highly entertaining surprises regarding what can be done with PHP features, such as output buffering and HTML parsing, as well as in the browser: reordering DOM events and changing the way scripts and stylesheets are loaded.