{
  "study": "SiteWall 100 public-homepage observations from a Tranco top-domain frame",
  "protocolVersion": "2.0.0",
  "collectedAt": "2026-09-05T16:04:28.533Z",
  "browserVersion": "152.0.7977.82",
  "studyDesign": {
    "populationFrame": "first 1,000 domains in the frozen Tranco daily list",
    "deterministicSeed": "sitewall-state-of-client-side-exposure-2026-v1",
    "candidateQueueSize": 260,
    "transport": "HTTPS only",
    "unitOfAnalysis": "one public-homepage browser observation",
    "deduplication": "first qualifying observation per final registrable domain",
    "geography": "Single fixed network location",
    "viewport": "1440x900",
    "locale": "en-US",
    "timezone": "UTC",
    "quantileMethod": "linear interpolation at (n - 1) × q"
  },
  "sampleSize": 100,
  "candidatesAttempted": 260,
  "navigationValidityRateAmongAttemptedCandidatesPct": 45.4,
  "metrics": {
    "totalRequests": {
      "min": 1,
      "p25": 57.75,
      "median": 107.5,
      "p75": 174,
      "max": 445
    },
    "totalJsRequests": {
      "min": 0,
      "p25": 13,
      "median": 32,
      "p75": 56.75,
      "max": 167
    },
    "crossRegistrableDomainResourceEntries": {
      "min": 0,
      "p25": 21,
      "median": 55,
      "p75": 102.75,
      "max": 419
    },
    "crossRegistrableDomains": {
      "min": 0,
      "p25": 4,
      "median": 8,
      "p75": 18.25,
      "max": 64
    },
    "crossRegistrableDomainScriptEntries": {
      "min": 0,
      "p25": 4.75,
      "median": 16.5,
      "p75": 32.75,
      "max": 109
    },
    "crossRegistrableDomainScriptDomains": {
      "min": 0,
      "p25": 2,
      "median": 5.5,
      "p75": 11.25,
      "max": 35
    },
    "observationsWithCrossRegistrableDomainScriptEntries": {
      "count": 92,
      "denominator": 100,
      "pct": 92
    },
    "cspHeaderPresent": {
      "count": 45,
      "denominator": 100,
      "pct": 45
    },
    "cspReportOnlyHeaderPresent": {
      "count": 11,
      "denominator": 100,
      "pct": 11
    },
    "sri": {
      "inScopeFinalDomPages": 92,
      "pagesWithAnySri": {
        "count": 26,
        "denominator": 92,
        "pct": 28.3
      },
      "pagesWithAllEligibleScriptsUsingSri": {
        "count": 0,
        "denominator": 92,
        "pct": 0
      },
      "scriptElementsWithSri": {
        "count": 48,
        "denominator": 2123,
        "pct": 2.3
      }
    }
  }
}