HTML caching?

Question

CMS

I looked at how much the code of the entire page “weighs” - 40KB (including the sidebar, footer, etc.). And, as an option, it can be given in one request (not counting the requests and traffic that the scripts will create).
It is clear that this will be a completely "static" page.
However, is this possible using plugins or some third party service?
Those. At the first access to the page, the html code is “remembered”, and on subsequent accesses, it is the entire html code that is sent, without forming the sidebar elements separately, and so on.
Or do caching plugins work like that?

Answer 1

Yes, in general, video page caching on the server works like that. The page is assembled completely, placed in a certain directory, the time is indicated for which it should be kept cached and that's it. On subsequent requests, it is checked whether it is in the cache, if it is, we take it from there. Problems arise only for rapidly changing dynamic pages - forums, pages with comments.