HTTP/2 - compared to HTTP/1, websocket (http1, websocket과 비교)

http/2 vs http1

1. HTTP/2 is a binary protocol where HTTP 1.x is textual.

2. HTTP/2 is multiplexed to tackle a known limitation in networking known as head-of-line blocking (HOL Blocking).

3. HTTP/2 uses header compression to reduce overhead.

4. HTTP/2 Server Push allows servers to proactively send responses into client caches.

 

http/2 vs http1 - network speed

http 1.x - use Domain sharding which can be used to distribute resources across several domains.

 

 HTTP/2, we see the browser use a single multiplexed connection with a much faster load time.

 

HTTP/2 vs WebSocket

	HTTP/2	WebSocket
Headers(헤더)	Compressed (HPACK)	None
Binary(바이너리)	Yes	Binary or Textual
Multiplexing(멀티플렉싱)	Yes	Yes
Prioritization	Yes	No
Compression(압축)	Yes	Yes
Direction(방향)	Client/Server + Server Push	Bidirectional
Full-duplex	Yes	Yes

 

Will WebSocket survive HTTP/2? (infoq.com)

Will WebSocket survive HTTP/2?