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What are the advantages of HTTP/2 compared to HTTP/1?

sobes.tech AI

Answer from AI

  • Multiplexing: Allows multiple requests to be sent and responses received simultaneously over a single TCP connection. This eliminates the head-of-line blocking problem in HTTP/1.

  • Header compression (HPACK): Compresses HTTP request and response headers using a dynamic indexing table and Huffman encoding. Reduces the amount of data transmitted.

  • Server Push: The server can send resources to the client that it anticipates will be needed to render the current page, even before the client explicitly requests them. Reduces page load time.

  • Binary protocol: HTTP/2 operates at the frame level in a binary format, making it more efficient for parsing and processing for both clients and servers compared to the text-based HTTP/1.

  • Stream prioritization: The client can specify priorities for different streams (requests/responses), allowing the server to optimize resource delivery.

  • Flow control: Allows controlling the amount of data that can be sent on a particular stream, preventing buffer overloads at the receiver.