URL Standard (WHATWG)

1. Goals and infrastructure

   Why the URL Standard replaces RFC 3986 for browsers.

2. Percent-encoded bytes

   Percent-encode sets and decoding.

3. Hosts (domains and IP addresses)

   Domain to ASCII, IPv4/IPv6 parsing and forbidden host code points.

4. URLs: syntax and parsing

   URL record, scheme-specific parsing and the basic URL parser.

5. URL serializing

   Serialization of URL records and origins.

6. application/x-www-form-urlencoded

   Form encoding and parsing rules.

7. URL API

   URL and URLSearchParams classes.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.