Hacker News Reader

From the article, a set of reference servers, one in Swift, one in Go:

Looks like the Go implementation has been pulled out to its own repo and has been recently maintained: https://github.com/network-quality/goserver

Also of note: looks like Apple has proposed a new IETF RFC for responsiveness and the "Round-trips Per Minute" (RPM) metric: https://github.com/network-quality/draft-ietf-ippm-responsiv...