Hello
I know, that we have some server experts here. Maybe somebody could explain, how caching is working. It confuses me, that there are many different caching methods. As far as I know, I have the following:
nginx cache
redis cache
smarty cache
full page cache
Additional there is the browser cache, right? Which one is doing what? Where are the risks?
I am always afraid that visitor could see outdated informations. Let's say I change price of a product. Is there a risk, that customer sees the old price? What if I change tpl files?