{
  "apiVersion": "v0.1",
  "methodology": "https://sourcescore.org/methodology/",
  "canonical": "https://sourcescore.org/source/mdn-web-docs/",
  "source": {
    "slug": "mdn-web-docs",
    "name": "MDN Web Docs",
    "domain": "developer.mozilla.org",
    "category": "Reference",
    "summary": "Mozilla-stewarded web-platform reference since 2005; default citation for HTML, CSS, JS, Web APIs.",
    "founded": 2005,
    "verified": "2026-04-28",
    "methodologyVersion": "v0.1"
  },
  "scores": {
    "index": {
      "value": 93,
      "grade": "A",
      "rationale": "A — gold-standard web-platform reference with full open access + machine-readability.",
      "signals": [
        {
          "label": "Composite",
          "detail": "Discipline 92 + Modern Reference 95 + Velocity 92."
        }
      ]
    },
    "discipline": {
      "value": 92,
      "grade": "A",
      "rationale": "Community-edited + reviewed by Mozilla maintainers; cross-checked against W3C/WHATWG standards.",
      "signals": [
        {
          "label": "Standards alignment",
          "detail": "Per-API content cross-referenced against W3C/WHATWG specifications."
        }
      ]
    },
    "modernReference": {
      "value": 95,
      "grade": "A+",
      "rationale": "Open-source content (CC-BY-SA + MIT for examples); GitHub-tracked; full structured data.",
      "signals": [
        {
          "label": "Open-source docs",
          "detail": "github.com/mdn/content tracks every page; CC-BY-SA license."
        }
      ]
    },
    "velocity": {
      "value": 92,
      "grade": "A",
      "rationale": "Default web-platform citation in dev press + AI-engine retrieval for web-tech queries.",
      "signals": [
        {
          "label": "Web-tech default",
          "detail": "Primary citation surfaced by ChatGPT/Claude/Perplexity for HTML/CSS/JS questions."
        }
      ]
    }
  },
  "license": {
    "methodology": "Cite as: SourceScore Methodology v0.1, sourcescore.org",
    "data": "Underlying public-source data credited to original publishers"
  }
}