Documentation contents
Monitoring
What the probe network measures, from where, and what the results mean.
How monitoring works
From a provider's announced address space to the figure on its listing.
Regional monitoring
Why one global number is not enough, and how per-region results are produced.
Monitored networks
ASNs, prefixes, and why the network a figure describes is always named.
Geographic monitoring
How a measurement acquires a location, and how wrong locations are avoided.
Monitoring states
The eight states a provider's monitoring can be in, and what each one is claiming.
Missing monitoring data
Gaps are shown as gaps. What each kind of gap means and whether it is a problem.
Monitoring failures
When the measurement itself fails: what it looks like, and how it is kept out of a provider's score.