{
  "meta": {
    "vertical": "US hospitals & health systems",
    "sampleSize": 35,
    "measured": 29,
    "measuredAt": "2026-07-20",
    "method": "Single HTTPS homepage GET per site via curl, delivered HTML only (no JavaScript executed). Third-party and tracker counts reflect origins declared in the delivered document; runtime-injected resources are out of scope. Accessibility signals are document-level structural checks, not a full WCAG audit.",
    "excluded": [
      {
        "name": "Mayo Clinic",
        "reason": "HTTP 403 (automated request blocked)"
      },
      {
        "name": "Johns Hopkins Medicine",
        "reason": "HTTP 403 (automated request blocked)"
      },
      {
        "name": "Mount Sinai",
        "reason": "HTTP 403 (automated request blocked)"
      },
      {
        "name": "Michigan Medicine",
        "reason": "HTTP 403 (automated request blocked)"
      },
      {
        "name": "Yale New Haven Health",
        "reason": "HTTP 403 (automated request blocked)"
      },
      {
        "name": "Scripps Health",
        "reason": "connection error"
      }
    ]
  },
  "sites": [
    {
      "name": "Cleveland Clinic",
      "ttfbMs": 371,
      "totalMs": 372,
      "htmlKB": 57,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": false,
      "skipLink": false,
      "h1": 1,
      "imgs": 33,
      "imgAltPct": 85,
      "thirdParties": 16,
      "trackers": 1,
      "trackerList": [
        "googletagmanager.com"
      ],
      "consentSignal": true,
      "preConsentCookies": 8
    },
    {
      "name": "Massachusetts General Hospital",
      "ttfbMs": 600,
      "totalMs": 642,
      "htmlKB": 97,
      "httpVersion": "1.1",
      "compressed": true,
      "hsts": false,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 1,
      "imgs": 17,
      "imgAltPct": 100,
      "thirdParties": 11,
      "trackers": 1,
      "trackerList": [
        "marketo.com"
      ],
      "consentSignal": false,
      "preConsentCookies": 2
    },
    {
      "name": "Cedars-Sinai",
      "ttfbMs": 461,
      "totalMs": 462,
      "htmlKB": 13,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": false,
      "skipLink": false,
      "h1": 0,
      "imgs": 0,
      "imgAltPct": 100,
      "thirdParties": 2,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": false,
      "preConsentCookies": 2
    },
    {
      "name": "UCLA Health",
      "ttfbMs": 225,
      "totalMs": 227,
      "htmlKB": 139,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 0,
      "imgs": 9,
      "imgAltPct": 100,
      "thirdParties": 11,
      "trackers": 1,
      "trackerList": [
        "googletagmanager.com"
      ],
      "consentSignal": false,
      "preConsentCookies": 1
    },
    {
      "name": "NewYork-Presbyterian",
      "ttfbMs": 261,
      "totalMs": 268,
      "htmlKB": 253,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": false,
      "skipLink": false,
      "h1": 1,
      "imgs": 15,
      "imgAltPct": 80,
      "thirdParties": 6,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": false,
      "preConsentCookies": 0
    },
    {
      "name": "UCSF Health",
      "ttfbMs": 646,
      "totalMs": 756,
      "htmlKB": 321,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": false,
      "h1": 1,
      "imgs": 23,
      "imgAltPct": 48,
      "thirdParties": 8,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": true,
      "preConsentCookies": 2
    },
    {
      "name": "Stanford Health Care",
      "ttfbMs": 201,
      "totalMs": 227,
      "htmlKB": 290,
      "httpVersion": "2",
      "compressed": true,
      "hsts": false,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": false,
      "skipLink": true,
      "h1": 1,
      "imgs": 34,
      "imgAltPct": 29,
      "thirdParties": 16,
      "trackers": 2,
      "trackerList": [
        "googletagmanager.com",
        "google-analytics.com"
      ],
      "consentSignal": false,
      "preConsentCookies": 4
    },
    {
      "name": "NYU Langone Health",
      "ttfbMs": 318,
      "totalMs": 358,
      "htmlKB": 356,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 1,
      "imgs": 25,
      "imgAltPct": 76,
      "thirdParties": 9,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": false,
      "preConsentCookies": 0
    },
    {
      "name": "Northwestern Medicine",
      "ttfbMs": 763,
      "totalMs": 892,
      "htmlKB": 86,
      "httpVersion": "2",
      "compressed": false,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 2,
      "imgs": 33,
      "imgAltPct": 85,
      "thirdParties": 25,
      "trackers": 3,
      "trackerList": [
        "googletagmanager.com",
        "hotjar.com",
        "tiktok.com"
      ],
      "consentSignal": false,
      "preConsentCookies": 2
    },
    {
      "name": "Duke Health",
      "ttfbMs": 210,
      "totalMs": 214,
      "htmlKB": 116,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 1,
      "imgs": 11,
      "imgAltPct": 100,
      "thirdParties": 9,
      "trackers": 1,
      "trackerList": [
        "googletagmanager.com"
      ],
      "consentSignal": true,
      "preConsentCookies": 0
    },
    {
      "name": "Brigham and Women's Hospital",
      "ttfbMs": 1692,
      "totalMs": 1692,
      "htmlKB": 47,
      "httpVersion": "1.1",
      "compressed": true,
      "hsts": false,
      "htmlLang": false,
      "viewport": true,
      "mainLandmark": false,
      "skipLink": true,
      "h1": 1,
      "imgs": 10,
      "imgAltPct": 90,
      "thirdParties": 10,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": false,
      "preConsentCookies": 2
    },
    {
      "name": "Houston Methodist",
      "ttfbMs": 647,
      "totalMs": 698,
      "htmlKB": 201,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": false,
      "skipLink": false,
      "h1": 0,
      "imgs": 20,
      "imgAltPct": 65,
      "thirdParties": 13,
      "trackers": 1,
      "trackerList": [
        "tiktok.com"
      ],
      "consentSignal": true,
      "preConsentCookies": 4
    },
    {
      "name": "Vanderbilt University Medical Center",
      "ttfbMs": 344,
      "totalMs": 368,
      "htmlKB": 57,
      "httpVersion": "1.1",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 1,
      "imgs": 14,
      "imgAltPct": 64,
      "thirdParties": 16,
      "trackers": 1,
      "trackerList": [
        "googletagmanager.com"
      ],
      "consentSignal": false,
      "preConsentCookies": 0
    },
    {
      "name": "UPMC",
      "ttfbMs": 537,
      "totalMs": 710,
      "htmlKB": 154,
      "httpVersion": "1.1",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": false,
      "h1": 1,
      "imgs": 32,
      "imgAltPct": 100,
      "thirdParties": 18,
      "trackers": 1,
      "trackerList": [
        "tiktok.com"
      ],
      "consentSignal": true,
      "preConsentCookies": 9
    },
    {
      "name": "Penn Medicine",
      "ttfbMs": 247,
      "totalMs": 248,
      "htmlKB": 0,
      "httpVersion": "2",
      "compressed": false,
      "hsts": true,
      "htmlLang": false,
      "viewport": false,
      "mainLandmark": false,
      "skipLink": false,
      "h1": 0,
      "imgs": 0,
      "imgAltPct": 100,
      "thirdParties": 0,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": false,
      "preConsentCookies": 2
    },
    {
      "name": "Emory Healthcare",
      "ttfbMs": 313,
      "totalMs": 332,
      "htmlKB": 107,
      "httpVersion": "2",
      "compressed": true,
      "hsts": false,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 1,
      "imgs": 18,
      "imgAltPct": 100,
      "thirdParties": 12,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": false,
      "preConsentCookies": 2
    },
    {
      "name": "Rush University Medical Center",
      "ttfbMs": 223,
      "totalMs": 223,
      "htmlKB": 113,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 0,
      "imgs": 21,
      "imgAltPct": 95,
      "thirdParties": 11,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": true,
      "preConsentCookies": 0
    },
    {
      "name": "Ochsner Health",
      "ttfbMs": 377,
      "totalMs": 437,
      "htmlKB": 312,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": false,
      "h1": 0,
      "imgs": 30,
      "imgAltPct": 100,
      "thirdParties": 16,
      "trackers": 2,
      "trackerList": [
        "googletagmanager.com",
        "tiktok.com"
      ],
      "consentSignal": false,
      "preConsentCookies": 0
    },
    {
      "name": "Intermountain Health",
      "ttfbMs": 379,
      "totalMs": 416,
      "htmlKB": 493,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 1,
      "imgs": 18,
      "imgAltPct": 89,
      "thirdParties": 3,
      "trackers": 1,
      "trackerList": [
        "googletagmanager.com"
      ],
      "consentSignal": false,
      "preConsentCookies": 1
    },
    {
      "name": "Banner Health",
      "ttfbMs": 337,
      "totalMs": 338,
      "htmlKB": 67,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": false,
      "skipLink": false,
      "h1": 1,
      "imgs": 21,
      "imgAltPct": 100,
      "thirdParties": 16,
      "trackers": 1,
      "trackerList": [
        "googletagmanager.com"
      ],
      "consentSignal": false,
      "preConsentCookies": 4
    },
    {
      "name": "Sutter Health",
      "ttfbMs": 280,
      "totalMs": 302,
      "htmlKB": 308,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 1,
      "imgs": 40,
      "imgAltPct": 78,
      "thirdParties": 7,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": false,
      "preConsentCookies": 1
    },
    {
      "name": "Baptist Health",
      "ttfbMs": 322,
      "totalMs": 353,
      "htmlKB": 182,
      "httpVersion": "2",
      "compressed": true,
      "hsts": false,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 2,
      "imgs": 11,
      "imgAltPct": 82,
      "thirdParties": 9,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": false,
      "preConsentCookies": 3
    },
    {
      "name": "Tampa General Hospital",
      "ttfbMs": 312,
      "totalMs": 337,
      "htmlKB": 154,
      "httpVersion": "1.1",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 1,
      "imgs": 21,
      "imgAltPct": 95,
      "thirdParties": 13,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": false,
      "preConsentCookies": 3
    },
    {
      "name": "Advocate Health",
      "ttfbMs": 222,
      "totalMs": 240,
      "htmlKB": 136,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": false,
      "h1": 6,
      "imgs": 14,
      "imgAltPct": 100,
      "thirdParties": 13,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": false,
      "preConsentCookies": 0
    },
    {
      "name": "Nationwide Children's Hospital",
      "ttfbMs": 401,
      "totalMs": 442,
      "htmlKB": 200,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": false,
      "h1": 2,
      "imgs": 13,
      "imgAltPct": 85,
      "thirdParties": 9,
      "trackers": 2,
      "trackerList": [
        "googletagmanager.com",
        "tiktok.com"
      ],
      "consentSignal": false,
      "preConsentCookies": 4
    },
    {
      "name": "Boston Children's Hospital",
      "ttfbMs": 551,
      "totalMs": 578,
      "htmlKB": 68,
      "httpVersion": "1.1",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 1,
      "imgs": 29,
      "imgAltPct": 100,
      "thirdParties": 14,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": false,
      "preConsentCookies": 5
    },
    {
      "name": "MD Anderson Cancer Center",
      "ttfbMs": 388,
      "totalMs": 441,
      "htmlKB": 160,
      "httpVersion": "1.1",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 2,
      "imgs": 18,
      "imgAltPct": 39,
      "thirdParties": 8,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": false,
      "preConsentCookies": 0
    },
    {
      "name": "Memorial Sloan Kettering",
      "ttfbMs": 255,
      "totalMs": 335,
      "htmlKB": 617,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": true,
      "skipLink": true,
      "h1": 1,
      "imgs": 7,
      "imgAltPct": 86,
      "thirdParties": 10,
      "trackers": 1,
      "trackerList": [
        "googletagmanager.com"
      ],
      "consentSignal": true,
      "preConsentCookies": 0
    },
    {
      "name": "Mass General Brigham",
      "ttfbMs": 200,
      "totalMs": 206,
      "htmlKB": 317,
      "httpVersion": "2",
      "compressed": true,
      "hsts": true,
      "htmlLang": true,
      "viewport": true,
      "mainLandmark": false,
      "skipLink": true,
      "h1": 1,
      "imgs": 35,
      "imgAltPct": 71,
      "thirdParties": 12,
      "trackers": 0,
      "trackerList": [],
      "consentSignal": false,
      "preConsentCookies": 1
    }
  ]
}