Just went through a similar search. There's plenty of free solutions that let you encrypt a static page. Here's an example (not my own) of password protecting a bookdown site on GitHub Pages. I found PageCrypt easy to use.
Just went through a similar search. There's plenty of free solutions that let you encrypt a static page. Here's an example (not my own) of password protecting a bookdown site on GitHub Pages. I found PageCrypt easy to use.