HTTP/2

HTTP/2 is a major revision of the HTTP network protocol that improves web performance through multiplexing, header compression, and server push. It allows multiple requests and responses to be sent simultaneously over a single TCP connection, eliminating head-of-line blocking. HTTP/2 uses binary framing instead of textual formatting, making it more efficient to parse and less error-prone. The protocol includes header compression using HPACK to reduce overhead from repeated header transmission. It supports server push, allowing servers to proactively send resources to clients before they're requested. HTTP/2 is backwards compatible with HTTP/1.1 and requires HTTPS in most browser implementations. The protocol is widely adopted by web servers, CDNs, and browsers, significantly improving page load times for modern websites.