Knowra HTTP HTTP HTTP is an application-layer protocol for exchanging requests and responses between clients and servers. It transfers web resources and defines how messages, methods, status codes, and metadata are represented.
HTTP request : A message sent by an HTTP client to request an action or resource from a server. It carries the method, target, headers, and optional body that initiate each exchange.
Uniform Resource Identifier : A string that identifies a resource by name, location, or another defined scheme. HTTP request targets commonly use URI syntax to identify resources.
Tim Berners-Lee : A British computer scientist who created the World Wide Web while working at CERN. He designed the first HTTP protocol alongside the web’s foundational technologies.
HTTP/1.1 : An HTTP version standardized in 1997 that introduced persistent connections and improved caching and host handling. It established widely used features while retaining text-based message framing.
Representational State Transfer : An architectural style for networked systems that emphasizes resources and stateless interactions. Many REST APIs use HTTP methods and status codes to expose resources.
HTTP response : A message sent by an HTTP server in reply to a request, with a status code, headers, and optional body. It reports the outcome and delivers requested data or an error.
Transmission Control Protocol : A transport protocol that provides ordered, reliable byte streams between network endpoints. Traditional HTTP deployments carry messages over TCP connections.
CERN : An international particle-physics laboratory near Geneva, founded in 1954. HTTP emerged there as part of a system for sharing research documents.
HTTP/2 : An HTTP version that uses binary framing and multiplexes concurrent streams over one connection. It reduces application-level blocking without changing HTTP’s core semantics.
Web cache : A store that retains copies of responses to satisfy later requests more quickly. HTTP caching directives control when intermediaries and clients may reuse responses.
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