{
  "slug": "ai-citation-source-share",
  "title": "AI Citation Source Share",
  "description": "The domains AI answers cite most often, with citation share, citation count, unique URLs, brand coverage, and source category.",
  "updatedAt": "2026-10-14T07:43:09.916987Z",
  "generatedAt": "2026-10-14T10:49:54Z",
  "sourceUrls": [
    {
      "label": "Trakkr Citation Index",
      "url": "https://storage.googleapis.com/trakkr-public/research/citation-index/latest-slim.json"
    },
    {
      "label": "Trakkr Data: citations",
      "url": "https://trakkr.ai/data/citations"
    }
  ],
  "coverage": [
    {
      "label": "Citations",
      "value": 80769585
    },
    {
      "label": "Unique domains",
      "value": 725777
    },
    {
      "label": "Brands analyzed",
      "value": 1928
    }
  ],
  "heroStats": [
    {
      "label": "Citations",
      "value": 80769585,
      "format": "number"
    },
    {
      "label": "Unique domains",
      "value": 725777,
      "format": "number"
    },
    {
      "label": "Top source share",
      "value": 2.752,
      "format": "percentPrecise"
    }
  ],
  "table": {
    "columns": [
      {
        "key": "rank",
        "label": "Rank",
        "format": "rank",
        "align": "right"
      },
      {
        "key": "domain",
        "label": "Domain",
        "format": "domain"
      },
      {
        "key": "citation_share",
        "label": "Citation share",
        "format": "percentPrecise",
        "align": "right"
      },
      {
        "key": "citations",
        "label": "Citations",
        "format": "number",
        "align": "right"
      },
      {
        "key": "unique_urls",
        "label": "Unique URLs",
        "format": "number",
        "align": "right"
      },
      {
        "key": "brands",
        "label": "Brands",
        "format": "number",
        "align": "right"
      },
      {
        "key": "source_category",
        "label": "Category",
        "format": "text"
      }
    ]
  },
  "rows": [
    {
      "rank": 1,
      "domain": "youtube.com",
      "citation_share": 2.752,
      "citations": 2222347,
      "unique_urls": 124535,
      "brands": 1402,
      "source_category": "social"
    },
    {
      "rank": 2,
      "domain": "google.com",
      "citation_share": 1.562,
      "citations": 1261575,
      "unique_urls": 90439,
      "brands": 916,
      "source_category": "other"
    },
    {
      "rank": 3,
      "domain": "reddit.com",
      "citation_share": 1.504,
      "citations": 1214720,
      "unique_urls": 61476,
      "brands": 1589,
      "source_category": "social"
    },
    {
      "rank": 4,
      "domain": "en.wikipedia.org",
      "citation_share": 1.347,
      "citations": 1088242,
      "unique_urls": 26595,
      "brands": 1814,
      "source_category": "reference"
    },
    {
      "rank": 5,
      "domain": "linkedin.com",
      "citation_share": 0.684,
      "citations": 552308,
      "unique_urls": 37284,
      "brands": 1409,
      "source_category": "social"
    },
    {
      "rank": 6,
      "domain": "facebook.com",
      "citation_share": 0.498,
      "citations": 402122,
      "unique_urls": 26578,
      "brands": 1144,
      "source_category": "social"
    },
    {
      "rank": 7,
      "domain": "edmunds.com",
      "citation_share": 0.385,
      "citations": 310979,
      "unique_urls": 8730,
      "brands": 121,
      "source_category": "other"
    },
    {
      "rank": 8,
      "domain": "pmc.ncbi.nlm.nih.gov",
      "citation_share": 0.381,
      "citations": 307943,
      "unique_urls": 12877,
      "brands": 503,
      "source_category": "academic"
    },
    {
      "rank": 9,
      "domain": "cars.com",
      "citation_share": 0.339,
      "citations": 273700,
      "unique_urls": 7762,
      "brands": 128,
      "source_category": "other"
    },
    {
      "rank": 10,
      "domain": "instagram.com",
      "citation_share": 0.29,
      "citations": 234503,
      "unique_urls": 17901,
      "brands": 1009,
      "source_category": "social"
    },
    {
      "rank": 11,
      "domain": "forbes.com",
      "citation_share": 0.278,
      "citations": 224530,
      "unique_urls": 6985,
      "brands": 1088,
      "source_category": "news"
    },
    {
      "rank": 12,
      "domain": "g2.com",
      "citation_share": 0.269,
      "citations": 217347,
      "unique_urls": 10022,
      "brands": 752,
      "source_category": "reviews"
    },
    {
      "rank": 13,
      "domain": "kbb.com",
      "citation_share": 0.256,
      "citations": 207017,
      "unique_urls": 4356,
      "brands": 130,
      "source_category": "other"
    },
    {
      "rank": 14,
      "domain": "gartner.com",
      "citation_share": 0.252,
      "citations": 203347,
      "unique_urls": 7257,
      "brands": 600,
      "source_category": "other"
    },
    {
      "rank": 15,
      "domain": "autotrader.com",
      "citation_share": 0.236,
      "citations": 191004,
      "unique_urls": 6029,
      "brands": 106,
      "source_category": "other"
    },
    {
      "rank": 16,
      "domain": "cargurus.com",
      "citation_share": 0.21,
      "citations": 169712,
      "unique_urls": 5222,
      "brands": 113,
      "source_category": "other"
    },
    {
      "rank": 17,
      "domain": "carfax.com",
      "citation_share": 0.194,
      "citations": 156260,
      "unique_urls": 3545,
      "brands": 111,
      "source_category": "other"
    },
    {
      "rank": 18,
      "domain": "techradar.com",
      "citation_share": 0.188,
      "citations": 152000,
      "unique_urls": 2842,
      "brands": 837,
      "source_category": "tech"
    },
    {
      "rank": 19,
      "domain": "play.google.com",
      "citation_share": 0.188,
      "citations": 151613,
      "unique_urls": 8301,
      "brands": 556,
      "source_category": "app_stores"
    },
    {
      "rank": 20,
      "domain": "yelp.com",
      "citation_share": 0.177,
      "citations": 143171,
      "unique_urls": 4380,
      "brands": 323,
      "source_category": "reviews"
    },
    {
      "rank": 21,
      "domain": "clutch.co",
      "citation_share": 0.176,
      "citations": 142238,
      "unique_urls": 4193,
      "brands": 346,
      "source_category": "other"
    },
    {
      "rank": 22,
      "domain": "dealerrater.com",
      "citation_share": 0.172,
      "citations": 138913,
      "unique_urls": 2756,
      "brands": 101,
      "source_category": "other"
    },
    {
      "rank": 23,
      "domain": "f6s.com",
      "citation_share": 0.172,
      "citations": 138528,
      "unique_urls": 5701,
      "brands": 758,
      "source_category": "other"
    },
    {
      "rank": 24,
      "domain": "apps.apple.com",
      "citation_share": 0.168,
      "citations": 135939,
      "unique_urls": 8148,
      "brands": 584,
      "source_category": "app_stores"
    },
    {
      "rank": 25,
      "domain": "caranddriver.com",
      "citation_share": 0.156,
      "citations": 125656,
      "unique_urls": 2525,
      "brands": 141,
      "source_category": "other"
    },
    {
      "rank": 26,
      "domain": "worldmetrics.org",
      "citation_share": 0.154,
      "citations": 124229,
      "unique_urls": 5362,
      "brands": 582,
      "source_category": "other"
    },
    {
      "rank": 27,
      "domain": "truecar.com",
      "citation_share": 0.141,
      "citations": 114217,
      "unique_urls": 2705,
      "brands": 104,
      "source_category": "other"
    },
    {
      "rank": 28,
      "domain": "caredge.com",
      "citation_share": 0.126,
      "citations": 101585,
      "unique_urls": 1316,
      "brands": 104,
      "source_category": "other"
    },
    {
      "rank": 29,
      "domain": "wifitalents.com",
      "citation_share": 0.123,
      "citations": 99405,
      "unique_urls": 5090,
      "brands": 592,
      "source_category": "other"
    },
    {
      "rank": 30,
      "domain": "tripadvisor.com",
      "citation_share": 0.117,
      "citations": 94232,
      "unique_urls": 3703,
      "brands": 149,
      "source_category": "reviews"
    },
    {
      "rank": 31,
      "domain": "gitnux.org",
      "citation_share": 0.11,
      "citations": 88982,
      "unique_urls": 4783,
      "brands": 586,
      "source_category": "other"
    },
    {
      "rank": 32,
      "domain": "nerdwallet.com",
      "citation_share": 0.108,
      "citations": 87398,
      "unique_urls": 2544,
      "brands": 311,
      "source_category": "other"
    },
    {
      "rank": 33,
      "domain": "consumerreports.org",
      "citation_share": 0.108,
      "citations": 87019,
      "unique_urls": 1953,
      "brands": 274,
      "source_category": "reviews"
    },
    {
      "rank": 34,
      "domain": "medium.com",
      "citation_share": 0.107,
      "citations": 86498,
      "unique_urls": 6361,
      "brands": 789,
      "source_category": "social"
    },
    {
      "rank": 35,
      "domain": "zipdo.co",
      "citation_share": 0.096,
      "citations": 77591,
      "unique_urls": 3745,
      "brands": 546,
      "source_category": "other"
    },
    {
      "rank": 36,
      "domain": "sciencedirect.com",
      "citation_share": 0.096,
      "citations": 77317,
      "unique_urls": 4881,
      "brands": 477,
      "source_category": "academic"
    },
    {
      "rank": 37,
      "domain": "dqsglobal.com",
      "citation_share": 0.094,
      "citations": 75946,
      "unique_urls": 1766,
      "brands": 17,
      "source_category": "other"
    },
    {
      "rank": 38,
      "domain": "capitalone.com",
      "citation_share": 0.091,
      "citations": 73512,
      "unique_urls": 2458,
      "brands": 148,
      "source_category": "other"
    },
    {
      "rank": 39,
      "domain": "amazon.com",
      "citation_share": 0.082,
      "citations": 66318,
      "unique_urls": 4683,
      "brands": 296,
      "source_category": "ecommerce"
    },
    {
      "rank": 40,
      "domain": "toyota.com",
      "citation_share": 0.082,
      "citations": 66188,
      "unique_urls": 1695,
      "brands": 66,
      "source_category": "other"
    },
    {
      "rank": 41,
      "domain": "guideflow.com",
      "citation_share": 0.081,
      "citations": 65303,
      "unique_urls": 1159,
      "brands": 437,
      "source_category": "other"
    },
    {
      "rank": 42,
      "domain": "salesforce.com",
      "citation_share": 0.081,
      "citations": 65172,
      "unique_urls": 2445,
      "brands": 406,
      "source_category": "other"
    },
    {
      "rank": 43,
      "domain": "quora.com",
      "citation_share": 0.081,
      "citations": 65039,
      "unique_urls": 4357,
      "brands": 757,
      "source_category": "social"
    },
    {
      "rank": 44,
      "domain": "landroverusa.com",
      "citation_share": 0.078,
      "citations": 62943,
      "unique_urls": 255,
      "brands": 35,
      "source_category": "other"
    },
    {
      "rank": 45,
      "domain": "iseecars.com",
      "citation_share": 0.074,
      "citations": 59471,
      "unique_urls": 1254,
      "brands": 93,
      "source_category": "other"
    },
    {
      "rank": 46,
      "domain": "capterra.com",
      "citation_share": 0.074,
      "citations": 59458,
      "unique_urls": 3131,
      "brands": 480,
      "source_category": "reviews"
    },
    {
      "rank": 47,
      "domain": "learn.g2.com",
      "citation_share": 0.073,
      "citations": 59263,
      "unique_urls": 764,
      "brands": 481,
      "source_category": "reviews"
    },
    {
      "rank": 48,
      "domain": "gov.uk",
      "citation_share": 0.071,
      "citations": 57085,
      "unique_urls": 2024,
      "brands": 197,
      "source_category": "other"
    },
    {
      "rank": 49,
      "domain": "shopify.com",
      "citation_share": 0.07,
      "citations": 56863,
      "unique_urls": 2126,
      "brands": 260,
      "source_category": "ecommerce"
    },
    {
      "rank": 50,
      "domain": "ibm.com",
      "citation_share": 0.07,
      "citations": 56188,
      "unique_urls": 2562,
      "brands": 344,
      "source_category": "other"
    }
  ],
  "methodology": [
    "Citation share is calculated from the Trakkr Citation Index across observed AI answer citations.",
    "The public snapshot includes the top source domains plus aggregate metadata from the latest slim index.",
    "Unique URL and brand counts show how broadly a domain is cited, not just how often it appears."
  ],
  "notes": [
    "Coverage window: 2025-10-03 to 2026-10-14."
  ]
}