On Jan 3, 2023, at 08:24, Mike Hammett <nanog@ics-il.net> wrote:

I think this is why Netflix came out with fast.com, but AFAIK, they're the only ones that have their own tool using their own infrastructure.

macOS have a built-in “networkQuality” command line tool (`man networkQuality` or https://support.apple.com/kb/HT212313 ). (iOS and iPadOS have a similar tool if a “WiFi Performance Diagnostics” profile has been installed).

See also https://datatracker.ietf.org/doc/draft-ietf-ippm-responsiveness/

$ networkQuality
==== SUMMARY ====
Uplink capacity: 1.029 Gbps
Downlink capacity: 2.132 Gbps
Uplink Responsiveness: High (7199 RPM)
Downlink Responsiveness: Medium (450 RPM)
Idle Latency: 12.042 milliseconds


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