> Kind of boggles the mind that some form of these aren’t yet the defaults / built-in after all these years.. is it just too hard to integrate into the core out

> Kind of boggles the mind that some form of these aren’t yet the defaults / built-in after all these years.. is it just too hard to integrate into the core out of box install for some reason? Because not all hosting providers compatible with Wordpress are compatible with these caching addons, it's as simple as that. Wordpress runs on the lowest sane PHP+Apache+Mysql environment. Now I can't access this website but it looks like it doesn't need to run on PHP, it should be using a static site generator.