Web Protocol Deep Dive: Free PDF Library
Web Protocols covers HTTP/HTTPS, FTP, WebSockets, and other application-layer protocols that enable communication and data transfer across the World Wide Web.
HTTP Headers
Description : Comprehensive reference for HTTP headers. Free PDF covers security headers, caching, content negotiation, and performance optimization.
http2 explained
Description : Understand HTTP/2 features and benefits with this free PDF. Covers multiplexing, header compression, and performance improvements over HTTP/1.