Developer Launches Free Tool to Audit Web Pages for Carbon Footprint and Page Weight

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A developer known as Digital Ghost has released Tardigrade, a free browser-based auditing tool that measures the carbon footprint and page weight of any website URL. The tool uses Google PageSpeed Insights data alongside the Sustainable Web Design model to estimate CO₂ emissions per page visit, grading sites on an A–F scale. It factors in page weight, HTTP requests, load time, and Lighthouse scores, with no user signup, tracking, or data storage required. Built with vanilla HTML, CSS, and JavaScript to avoid framework overhead, the tool is hosted on Vercel and accessible via tardigrade-six.vercel.app. The developer is seeking community feedback on scoring weights, carbon calculation models, and potential new features such as per-resource breakdowns and a browser extension.

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Agentic Design System sandeep kumar patel Sep 19 Add Comment 1 min read

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