The speed of websites and online stores get more and more focus, and most developers fix performance problems by adding caching or several layers of caching. Caching can give the impression of being the “holy grail” for all performance problems.
In this talk, I will go thru the different caching mechanisms in WordPress, how each of them should be used, and last but not least why you should not use caching as a performance enhancement and what you should do in stead.