18 August 2026
Why a hostname is not a route
DNS tells a client where to begin. The path that follows is still shaped by peering, congestion and policy at every hop.
Network field notebook
Small observations from the edge of the network.
Short, reproducible notes about latency, naming, routing and the practical details that make distributed systems easier to understand.
01Originbaseline
38 ms
02Edgetransit
17 ms
03Probesample
Recent notes
Updated periodically02 August 2026
Measure the return path too
A clean outbound trace can hide an asymmetric return route. Capture both directions before calling a link stable.
21 July 2026
Useful probes are deliberately boring
One small request, a fixed timeout and a clear expected response are easier to trust than a dashboard full of inferred states.