{
  "kind": "tracker",
  "studySlug": "citation-sources",
  "slug": "source-category-share-tracker",
  "title": "AI citation share by source category",
  "description": "Current category mix in the live Trakkr citation index.",
  "lastUpdated": "2026-10-14",
  "lastTested": "2026-10-14",
  "sourceStudyUrl": "/trakkr-research/citation-sources",
  "sourceStudyTitle": "AI Citation Index",
  "claimIds": [
    "citation-sources:reference-share",
    "citation-sources:social-share",
    "citation-sources:reviews-share",
    "citation-sources:docs-share",
    "citation-sources:other-share"
  ],
  "relatedSlugs": [
    "answer:which-sources-dominate-ai-citations",
    "answer:how-concentrated-is-the-ai-citation-landscape",
    "fact:youtube-leads-the-current-citation-index"
  ],
  "methodologySummary": "Built from 80,769,585 citation appearances across 725,777 unique domains in the latest valid snapshot for 1,928 tracked brands, observed from October 3, 2025 to October 14, 2026.",
  "limitations": [
    "The index is a changing panel of tracked brands and prompts, not a random sample of all AI responses.",
    "Domain share is observational. It does not establish causal influence or reveal the full retrieval set.",
    "The hand-maintained source taxonomy is partial: 88.40% of citation appearances remain in “other”.",
    "Model attribution, response-level citation denominators, geography, raw prompts, and raw responses are not retained in the public aggregate."
  ],
  "keywords": [
    "AI citations",
    "citation sources",
    "AI source preferences",
    "domain authority in AI"
  ],
  "schemaHints": {
    "pageType": "WebPage",
    "includeDataset": true,
    "includeItemList": true,
    "itemListName": "AI citation share by source category"
  },
  "summary": "Social is the largest named source category, while 88.40% of citation appearances remain outside the named taxonomy.",
  "keyFacts": [
    {
      "label": "Reference category share",
      "value": "1.48%",
      "detail": "Partial hand-maintained source classification.",
      "claimId": "citation-sources:reference-share"
    },
    {
      "label": "Social category share",
      "value": "6.11%",
      "detail": "Social is the largest named category, led by YouTube, Reddit, and LinkedIn.",
      "claimId": "citation-sources:social-share"
    },
    {
      "label": "Review category share",
      "value": "1.11%",
      "detail": "Partial hand-maintained source classification.",
      "claimId": "citation-sources:reviews-share"
    },
    {
      "label": "Docs category share",
      "value": "0.18%",
      "detail": "Partial hand-maintained source classification.",
      "claimId": "citation-sources:docs-share"
    }
  ],
  "benchmarkRows": [
    {
      "label": "Reference category share",
      "value": "1.48%",
      "note": "Partial hand-maintained source classification."
    },
    {
      "label": "Social category share",
      "value": "6.11%",
      "note": "Social is the largest named category, led by YouTube, Reddit, and LinkedIn."
    },
    {
      "label": "Review category share",
      "value": "1.11%",
      "note": "Partial hand-maintained source classification."
    },
    {
      "label": "Docs category share",
      "value": "0.18%",
      "note": "Partial hand-maintained source classification."
    },
    {
      "label": "Unclassified share",
      "value": "88.40%",
      "note": "Domains outside the current named source map remain in “other”."
    }
  ],
  "rankedItems": [
    {
      "name": "Other / unclassified",
      "value": "88.40%",
      "detail": "Most citations land outside the named source buckets."
    },
    {
      "name": "Social",
      "value": "6.11%",
      "detail": "The largest named category in the current map."
    },
    {
      "name": "Reference",
      "value": "1.48%",
      "detail": "A visible but smaller named category."
    },
    {
      "name": "Reviews",
      "value": "1.11%",
      "detail": "A measurable category without an intent-level causal claim."
    },
    {
      "name": "Docs",
      "value": "0.18%",
      "detail": "A narrow domain-category result."
    }
  ],
  "changes": [
    {
      "title": "Social is the largest named category",
      "detail": "YouTube, Reddit, and LinkedIn lead the mapped social group."
    },
    {
      "title": "Classification coverage is the main limit",
      "detail": "The unclassified majority prevents complete source-type conclusions."
    }
  ]
}