Page DOM Stats

Overview

Gather statistics on DOM and CSS

This is a simple Chrome extension to inspect performance-related properties of a web page: - DOM size and structure: - Total number of nodes, split into elements and text nodes - Hidden nodes — inside `display: none` subtrees - Shadow DOM: number of roots and nodes in shadow trees - Iframes — same-origin ones are measured too; cross-origin ones are counted as unmeasurable - Top tags by frequency - Maximum and 95th-percentile number of children (fan-out) - Maximum and 95th-percentile depth - Maximum number of attributes per element and the number of inline `style` attributes - Number of scripts, including inline ones - CSS size: - Style sheets: total, inline, adopted, and unaccessible (cross-origin) - Rules and selectors: totals and per-sheet maxima - Performance: - Timings: time to first byte, `DOMContentLoaded`, load, first contentful paint, largest contentful paint, cumulative layout shift - Requests and transferred bytes, broken down by type - Number of loaded fonts and the JS heap size (Chrome) - Verdicts against Lighthouse guidance where a value crosses it: total nodes, children, depth

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Details

Version
1.1.0
Updated
July 25, 2026
Flag concern
Offered by
Eugene Lazutkin
Size
27.35KiB
Languages
English
Developer
Email
eugene.lazutkin+cws@gmail.com
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

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The developer has disclosed that it will not collect or use your data.

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

Support

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