HTML and CSS Reference
In-Depth Information
Focus Should be on Multiple Performance Issues
As mentioned, the number of HTTP requests is an important factor to
consider in website performance. But there are other ways to lower that
number, including combining scripts and stylesheets, and using remote
locations for library files.
There are also areas outside of HTTP requests that a developer can focus
on to improve site performance. These might include GZipping, proper
placement of external scripts, optimizing CSS syntax, minifying large
JavaScript files, improving Ajax performance, avoiding JavaScript syntax
that's known to cause performance issues, and much more.
YSlow indicates many areas outside of HTTP requests that can improve site
performance
