Getting the best page speeds is not all about caching.
A caching system isn’t enough to decrease loading time for your pages, and optimize them. You need to take care of your images, and your code.
There are several techniques to make WordPress code faster to load, leaner, and more agile.
With this guide, we’ll explain what we mean when we talk about optimizing WordPress code. You’ll also get to know the most popular optimization techniques: minification, concatenation, and GZIP compression.