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Developer measures portfolio carbon footprint at 35x below web median using open-source tool

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A developer calculated the real carbon footprint of their personal portfolio site (yel-martinez-portfolio.com) at just 0.014 g CO₂ equivalent per visit, compared to the 0.50 g median recorded by HTTP Archive 2024. The measurement was made using the developer's own open-source Carbon Calculator, which implements the SWD v3 methodology and reads actual byte transfer data via the browser's Performance API rather than relying on external crawlers. The site's total page weight came to just 45.2 KB across four network requests, with zero image requests achieved by using inline SVGs for all graphics. The calculator highlights that end-user devices account for 52% of a webpage's total energy consumption, far outweighing the datacenter's 15% share. The article also notes that green hosting claims were independently verified against the Green Web Foundation's public API rather than taken at face value.

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Developer measures portfolio carbon footprint at 35x below web median using open-source tool · ShortSingh