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What is the difference between HTTP/1.1 and HTTP/2?

sobes.tech AI

Answer from AI

Main differences between HTTP/2 and HTTP/1.1:

  • Multiplexing: HTTP/2 allows multiple requests and responses to be sent simultaneously over a single TCP connection, reducing latency and increasing performance. In HTTP/1.1, requests are processed sequentially or with limited parallelism.

  • Binary protocol: HTTP/2 uses a binary data format, which simplifies parsing and reduces errors, whereas HTTP/1.1 is a text-based protocol.

  • Header compression: HTTP/2 employs header compression (HPACK), which decreases the amount of data transmitted.

  • Stream prioritization: HTTP/2 allows clients to specify request priorities, optimizing resource loading.

  • Server push support: the server can proactively send resources to the client without explicit requests.

These improvements make HTTP/2 more efficient and faster compared to HTTP/1.1.