Many of the foundational specifications of the web are authored and maintained by the WHATWG these days: https://spec.whatwg.org/ https://spec.whatwg.org/ - DO

Many of the foundational specifications of the web are authored and maintained by the WHATWG these days: https://spec.whatwg.org/ https://spec.whatwg.org/ - DOM, HTML: obvious - URL, Encoding, Fetch: foundational building blocks - XHR, Fullscreen, Notifications: important features There are also other up-and-coming specs like Books, Figures, Streams, or Loader (the latter two not listed).