Key Differences in HTTP Versions
Here are the key differences between the main HTTP versions: HTTP/1.1 Uses multiple connections , but requests don’t share a single stream efficiently. Suffers from head of line blocking . [:cite[1]{ln=6}] HTTP/2 Us...
Here are the key differences between the main HTTP versions: HTTP/1.1 Uses multiple connections , but requests don’t share a single stream efficiently. Suffers from head of line blocking . [:cite[1]{ln=6}] HTTP/2 Uses multiplexing over TCP (multiple requests/responses in flight at the same time). Uses binary framing (more efficient on the wire than HTTP/1.1’s text based framing). [:cite[1]{ln=6}] HTTP/3 Runs over QUIC , which is UDP based rather than TCP. Supports zero RTT and avoids TCP head of line blocking . [:cite[1]{ln=7}]