{
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  "metric": "encodedBodySize_bytes",
  "conditions": {
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    "cache": "empty",
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    "image_load": "scrolled to image"
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    "Resource response body sizes, not whole-page transfer or load time.",
    "No demonstrated SEO, revenue or field Core Web Vitals improvement.",
    "One article required a rendering bug fix; its before/after content was not equivalent."
  ],
  "provenance": "Summary of this site operator’s before/after browser measurement records; no third-party client data."
}