RFC7230 - Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing
RFC7231 - Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content
RFC7232 - Hypertext Transfer Protocol (HTTP/1.1): Conditional Requests
RFC7233 - Hypertext Transfer Protocol (HTTP/1.1): Range Requests
RFC7234 - Hypertext Transfer Protocol (HTTP/1.1): Caching
RFC7235 - Hypertext Transfer Protocol (HTTP/1.1): Authentication
