@lzg the Web is a graph of information/resources, connected by edges that address a piece of content with citations that follow a specific form. The citation format, instead of being MLA, APA, Chicago, etc. is called a URL.
That's it. That's all. That's the only thing the Web is.
It's not a computing platform that you have to author for using WHATWG-approved APIs or an SDK. It's not JS or Tailwind or ASP.NET or PHP or CGI or whatever. It's not even HTML. That's all totally auxiliary.