http
HTTP/1.1
Issue
- Head-of-line blocking, HoL
- Single request / connection
- Request must be responded in order, FIFO
- No optimised well
- Uncompressed headers
- Redundant headers
- Lack of Server-side push
SPDY&HTTP2
- Multiplexed streams
- Multiple stream over single TCP connection
- Request Prioritization
- HTTP header compression
- HPACK format
- Huffman code
- Server Push
TCP/TLS
Issue
- HoL
- TCP 3-way handshaking
- TLS negotiation handshaking
- Large backoff on packet loss
- Poor perforamnce in mobile
QUIC
Quick UDP Internet Connections
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