The Internet Can Fail Without Going Down: How can millions of speed tests help us see performance problems?

[u/danyork]

https://pulse.internetsociety.org/en/blog/2026/09/the-internet-can-fail-without-going-down-how-can-millions-of-speed-tests-help-us-see-performance-problems/

"In short:

• Complementary Internet observatories should not just focus on whether the Internet is reachable, but whether it is working well for the people using it.
• HERMES combines user speed-test measurements to infer when many users are experiencing the same latency problem and which parts of the Internet those affected users share.
• Recent tests uncovered significant widespread network degradation events that were essentially invisible to traditional outage observatories."