Github Pages

GitHub Pages is a static site hosting service: it publishes HTML, CSS, and JavaScript files directly from a GitHub repository.

This is your zero-friction static site deployment solution: GitHub Pages takes your repository files and publishes them live on the web. It is a free service for all public repositories (available in private repos with paid plans), automatically building your site when you push code. You can use a static site generator like Jekyll (built-in support) or simply provide raw HTML; the system handles the build process. Sites are hosted on a default `username.github.io` domain or a custom domain you configure (Apex or `www` subdomains are supported).

https://docs.github.com/en/pages