RFC 2616 (Hypertext Transfer Protocol)

RFC 2616 defines HTTP, the protocol used for communication between web browsers and servers. It specifies how requests (like visiting a webpage) are made and how servers respond (delivering webpage data). The protocol includes methods (GET, POST), status codes (200 OK, 404 Not Found), headers (metadata about requests or responses), and message formats. Essentially, RFC 2616 sets the rules for how information is exchanged on the web, ensuring that browsers and servers understand each other, enabling smooth, reliable access to websites and online services.