URIs label resources with a scheme (`http:`, `ftp:`, `mailto:`) and a path — the foundation of every link, APIApplication programming interface — a defined way for programs to talk to each other or to a service. endpoint, and redirect. URLs and URNs are subsets of URI; browsers resolve `https://example.com/docs` because this document formalized the grammar. RESTRepresentational State Transfer — a style for web APIs using HTTP methods and resource URLs., OpenAPI, and CDN routing all assume URI-shaped identifiers.

RFC 1630 was Tim Berners-Lee's first IETFInternet Engineering Task Force — develops RFC standards for TCP/IP, HTTP, DNS, and other internet protocols. document unifying how the web names resources.

It gave HTTPHyperText Transfer Protocol — the protocol browsers use to request and receive web pages., HTMLHyperText Markup Language — the standard markup for structuring web pages., and DNSDomain Name System — translates human-readable domain names into IP addresses. a shared addressing vocabulary that still underpins the web.