HTTP is a request/response protocol on top of TCP (HTTP/1.1) or QUIC (HTTP/3). Methods (GET, POST, PUT, DELETE) express intent; status codes (2xx success, 4xx client, 5xx server) tell the outcome. HTTPS wraps HTTP in TLS — confidentiality and integrity on port 443.
HTTP/1.1 over TLS
🔐
TCP + TLS
Handshake first
→
📤
Request
GET /path HTTP/1.1
→
📥
Response
200 + body
→
♻️
Keep-alive
Reuse connection
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