What is HTTP/2 protocol?
HTTP/2 (originally named HTTP/2.0) is a major revision of the HTTP network protocol used by the World Wide Web. ... HTTP/2 was developed by the Hypertext Transfer Protocol working group (httpbis, where bis means "second") of the Internet Engineering Task Force.
What Improvements does HTTP/2.0 protocol have?
Single Connection. Only one connection to the server is used to load a website, and that connection remains open as long as the website is open. This reduces the number of round trips needed to set up multiple TCP connections.
Multiplexing. Multiple requests are allowed at the same time, on the same connection. Previously, with HTTP/1.1, each transfer would have to wait for other transfers to complete.
Server Push. Additional resources can be sent to a client for future use.
Prioritization. Requests are assigned dependency levels that the server can use to deliver higher priority resources faster.
Binary. Makes HTTP/2 easier for a server to parse, more compact and less error-prone. No additional time is wasted translating information from text to binary, which is the computer’s native language.
Header Compression. HTTP/2 uses HPACK compressions, which reduces overhead. Many headers were sent with the same values in every request in HTTP/1.1.