{
  "captureDate": "2026-09-01T13:22:19.839Z",
  "study": {
    "slug": "hvac-top10-anatomy",
    "question": "What does a residential HVAC website that ranks in Google's top 10 actually look like, and does site size or publishing cadence track with position?"
  },
  "sample": {
    "markets": 12,
    "resultsSeen": 105,
    "excluded": 35,
    "excludedReasons": [
      [
        "directory, marketplace or social platform",
        32
      ],
      [
        "manufacturer or national brand, not a local operator",
        3
      ]
    ],
    "uniqueBusinesses": 67,
    "reachable": 62,
    "pageCountMeasured": 57,
    "pageCountMissing": 10
  },
  "pageCount": {
    "n": 57,
    "min": 13,
    "p25": 149,
    "median": 378,
    "p75": 682,
    "p90": 1038,
    "max": 10819,
    "mean": 793.44
  },
  "homepageWords": {
    "n": 62,
    "min": 0,
    "p25": 972,
    "median": 1375,
    "p75": 1939,
    "p90": 2563,
    "max": 4121,
    "mean": 1502.37
  },
  "blogPages": {
    "n": 57,
    "min": 0,
    "p25": 1,
    "median": 43,
    "p75": 194,
    "p90": 320,
    "max": 1919,
    "mean": 153.04
  },
  "blogPosts12mo": {
    "n": 44,
    "min": 0,
    "p25": 1,
    "median": 21,
    "p75": 132,
    "p90": 231,
    "max": 1911,
    "mean": 124.2
  },
  "adoption": {
    "hasJsonLd": 54,
    "hasLocalBusinessSchema": 27,
    "hasReviewSchema": 19,
    "hasBlogLink": 50,
    "hasCareersLink": 52,
    "hasFinancingLink": 49,
    "outOf": 62
  },
  "correlations": {
    "rankVsPageCount": {
      "n": 57,
      "rho": -0.259,
      "significant": false,
      "strength": "weak"
    },
    "rankVsHomepageWords": {
      "n": 62,
      "rho": 0.026,
      "significant": false,
      "strength": "no meaningful relationship"
    },
    "rankVsBlogPages": {
      "n": 57,
      "rho": -0.25,
      "significant": false,
      "strength": "weak"
    },
    "rankVsBlogPosts12mo": {
      "n": 44,
      "rho": -0.158,
      "significant": false,
      "strength": "weak"
    },
    "pageCountVsBlogPages": {
      "n": 57,
      "rho": 0.583,
      "significant": true,
      "strength": "strong"
    }
  },
  "limits": [
    "Search results were captured once, from one location setting per market. Rankings vary by device, personalization and time.",
    "Rank is the position within this query only. It is not a measure of overall visibility.",
    "Page count comes from published sitemaps. Sites without a sitemap are reported as missing, never as zero.",
    "Blog volume is counted from sitemap URLs under a blog, news, article or resources path. A site that publishes under a different path structure is undercounted.",
    "Recency uses the sitemap lastmod value, which is a modification date rather than strictly a publication date.",
    "Correlation is not causation. A relationship here describes what co-occurs among sites that already rank, not what causes ranking.",
    "Businesses appearing in more than one market are counted once."
  ],
  "notes": {
    "contaminantFoundInFirstRun": {
      "host": "hvacinformed.com",
      "market": "Dallas, Texas",
      "rank": 2,
      "pagesAtFirstRun": 54097,
      "firstRunCapture": "2026-09-01",
      "remeasuredPages": 54097,
      "remeasureMethod": "index (16 children)",
      "remeasuredAt": "2026-09-02T13:34:47.023Z",
      "note": "Excluded before the second run as an industry directory; the first-run measurement is retained here because the article cites it."
    }
  }
}