' HTML ' . TCP HTTP/3 UDP 80 . 1996 1.0, 1999 1.1 . HTTP .

HTTP/1.1 HTTP/2 , HTTP/3 . HTTP/2 HTTPS , HTTP HTTP/2 .

HTTP - . HTTP , () .

Understanding the Context

HTTP http: URL ( ) , 80. (stateless) : .

HTTP , . HTTP , HTML .

To allow intermediate HTTP nodes (proxy servers, web caches, etc.) to accomplish their functions, some of the HTTP headers (found in HTTP requests/responses) are managed hop-by-hop.

, . . HTTP HTTPS . HTTP.

Key Insights

HTTP HTTP . 5 : , , , , . section 10.

HTTP is an application-layer protocol for transmitting hypermedia documents, such as HTML. It was designed for communication between web browsers and web servers, but it can also be.

HTTP ? HTTP OSI (Open Systems Interconnection) . HTTP . , .