group,layer,pct_us,denominator "TIER 1 · STRATEGIC: DATA, IDENTITY, OPERATIONS",Website on a US-headquartered operator's network,32.54,of live websites "TIER 1 · STRATEGIC: DATA, IDENTITY, OPERATIONS",Mail run by a US-headquartered operator,26.24,of mail-capable websites "TIER 1 · STRATEGIC: DATA, IDENTITY, OPERATIONS",DNS run by a US-headquartered operator,22.86,of resolving websites "TIER 1 · STRATEGIC: DATA, IDENTITY, OPERATIONS",Microsoft 365 tenant record (MS=),7.23,of domains with TXT records "TIER 1 · STRATEGIC: DATA, IDENTITY, OPERATIONS",Ministries with a Microsoft 365 signal,46.4,"of 1,745 ministry mail domains" "TIER 1 · STRATEGIC: DATA, IDENTITY, OPERATIONS",Central banks with a Microsoft 365 signal,78.8,of 165 central-bank mail domains "TIER 2 · PHYSICAL: SERVERS, PATHS, CABLES",Hosted on US soil,7.28,of live websites "TIER 2 · PHYSICAL: SERVERS, PATHS, CABLES","Hyperscaler-hosted, in a US region",26.52,of hyperscaler-region websites "TIER 2 · PHYSICAL: SERVERS, PATHS, CABLES",Latin American cross-border paths via the US,47.8,"of 1,610 traceroutes" "TIER 2 · PHYSICAL: SERVERS, PATHS, CABLES",Cables since 2020 with a big-tech owner,15.07,22 of 146 cables TIER 3 · ECOSYSTEM CONCENTRATION,Behind a US-run anycast edge,18.74,of live websites TIER 3 · ECOSYSTEM CONCENTRATION,TLS certificate from a US-headquartered CA,97.87,of HTTPS sample TIER 3 · ECOSYSTEM CONCENTRATION,ccTLD registry with a US-operated nameserver,71.79,56 of 77 country TLDs + .eu "PER DOMAIN, ACROSS TIERS",At least one layer on a US-headquartered operator,42.62,of fully attributable websites "PER DOMAIN, ACROSS TIERS","Web, mail and DNS all US",19.17,of fully attributable websites