What is HTTP 1.1?

HTTP 1.1 is a revision of the Hypertext Transfer Protocol (HTTP), a foundational protocol for the World Wide Web. It defines how web browsers and servers communicate, enabling the transfer of resources like HTML documents, images, and videos. HTTP 1.1 introduced improvements over its predecessor, HTTP 1.0, including persistent connections (allowing multiple requests over a single TCP connection), pipelining (sending multiple requests without waiting for responses), and better caching mechanisms. These enhancements significantly improved web performance and reduced network congestion. It is commonly used as the underlying protocol for web browsing, APIs, and other networked applications.