Neocities [0] does all of this!

- It's free (though you can become a supporter and get some extra benefits) [1]

- It's fast, since it uses it's own CDN. [2]

- It's secure, all pages support SSL, even with custom domains. [3]

- It has a command line tool [4] that can be wrapped to automate upload of pages, or used in a Git hook.

- It has a plethora of learning resources [5].

[0] https://neocities.org

[1] https://neocities.org/supporter

[2] https://www.youtube.com/watch?v=-i6wvix6buI

[3] https://blog.neocities.org/default-ssl.html

[4] https://neocities.org/cli

[5] https://neocities.org/tutorials