slotwatch · compare

All probes fire in parallel from the slotwatch process on Ashburn, each through the same fresh HTTP client so connection-pool warmth is uniform — apples to apples. The two self HTTP rows hit 127.0.0.1:8053 over loopback: /health shows pure axum overhead (no upstream call), /current shows what a consumer asking "who's leading now?" pays end-to-end. The external rows make a live getSlot JSON-RPC call. Reference slot is whatever /current just returned, and slot lag = source − reference (negative = behind).