Depends how complicated it is. If it's a really simple site where you won't be updating the content all too often (or ever), then good old static HTML and CSS s

Depends how complicated it is. If it's a really simple site where you won't be updating the content all too often (or ever), then good old static HTML and CSS should do fine, along with whatever host takes your fancy. Heck, even something like GitHub pages may be a good choice here, since you don't need anything with server side language support for a site this simple. And if you can avoid bringing in JavaScript frameworks or what not, well all the better there. Making a fast site seems to have become a lost art nowadays, in part due to all the people just bringing in dozens or hundreds of libraries for the simplest possible things. If you want something more complex? Then look into a framework like React or Vue, or maybe a very basic CMS.