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1. Scope/Audience (What are critical zones?)

  • Zones managed by Top-level Domain (TLD) operators/registries, including TLD zones themselves (e.g., .com, .info, .be) and their subdomains (e.g., co.uk, co.za), and any auxiliary zones necessary to the operation of a ccTLD (e.g., nic.uk, nic.fr, nic.dk)
  • Other delegation-centric zones of national importance for TLDs
  • SLDs tied to critical services such as healthcare and e-governance/citizen and ID services (e.g: mitid.dk)
  • Finance/banking sites

2. Availability and resiliency of the DNS service

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