Centrality in the DNS
Summary
Geoff Huston analyzes centrality in the DNS, examining market share and centralization in DNS resolution (recursive resolvers) and authoritative servers. The piece uses data from Domain Name Stat and APNIC Labs, concluding that the DNS resolution market is not centralized overall, but the open resolver subset shows strong centralization, while authoritative servers show some concentration with caveats. It also discusses regulatory and market implications for digital infrastructure.