Knowledge Base
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Implementation Rules
* Engine

* Engine

Engine entries are bare-metal HTTP implementations — raw sockets, custom parsers, low-level I/O. They are not frameworks and are ranked separately.

What qualifies as an engine

  • Raw TCP socket servers with custom HTTP parsing
  • Minimal HTTP libraries without routing or middleware
  • Direct io_uring or epoll implementations
  • Web servers (nginx, h2o) without application framework layers

Rules

  • Must implement the endpoint spec correctly
  • Must pass the validation suite
  • No restrictions on implementation approach
  • Ranked separately from production and tuned entries
  • Only participates in connection-level tests (baseline, pipelined, limited-conn) and protocol tests (H2, H3, gRPC, WebSocket) by default
# Tuned