16 July 2026
We have made some improvements to our Internet Resilience Index methodology.
Improvements
Updates to IRI Upstream Redundancy Indicator
Upstream Redundancy is the average number of upstream providers by active Autonomous Systems (ASes) in the country. The higher the number of upstream providers per AS, the more resilient the overall ecosystem is. The CAIDA AS-Relationship dataset is used to infer provider to customer relationships.
We previously only counted IPv4 and dual-stack providers in this calculation. We are now also counting IPv6-only providers. This should provide a more complete view of upstream redundancy for active networks in a given country.
Aggregating all available data
The IRI is composed from many indicators (e.g. IPv6 adoption, upstream redundancy). Previously we were using the first available datapoint in any given quarter as input to the IRI calculation. For many indicators we have multiple datapoints in a quarter, i.e. daily, weekly, or monthly data. In such cases we now calculate the average of all available datapoints in the given quarter as input to the IRI calculation. This should provide a more accurate assessment of the various indicators so derived, especially for indicators where individual datapoints may lie far from the mean (noisy data).