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  "ok": true,
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  "reportType": "comparison",
  "comparisonType": "shields",
  "title": "Brave-list blocking off/on comparison",
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    "baseline": "No blocking",
    "variant": "Brave-list blocking"
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    "schemaVersion": 1,
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      "cookies": 4,
      "thirdPartyCookies": 0,
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      "shieldsBlockedRequests": 5
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      "finalUrl": "https://www.facebook.com/",
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      "userAgent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/149.0.7827.55 Safari/537.36",
      "timezone": "UTC",
      "locale": "en-US",
      "language": "en-US",
      "viewport": {
        "width": 1440,
        "height": 980,
        "isMobile": false
      },
      "gpcEnabled": true,
      "consentMode": "observe",
      "automation": "playwright-chromium",
      "headless": true,
      "scannerEgress": "github-actions-ubuntu",
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        "source": "Brave default ad-block lists",
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        "fetchedAt": "2026-06-19T17:24:24.927Z"
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      "trackerCatalog": {
        "source": "Hand-curated service catalog",
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        "license": "AGPL-3.0-or-later"
      },
      "scannerDisclosure": "Automated Chromium scan from github-actions-ubuntu with browser 149.0.7827.55, timezone UTC, locale en-US, the listed viewport, and Brave Shields classification only. Treat results as reproducible evidence for this scan configuration, not a universal claim about all visitors."
    },
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      {
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        "tracker": null,
        "blockedByShields": true,
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        "startedAtMs": 873
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        "status": 200,
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        "blockedByShields": false,
        "startedAtMs": 1165
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      {
        "id": 6,
        "url": "https://static.{label}.fbcdn.net/{seg}/{seg}/{seg}/{seg}",
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        "thirdParty": true,
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        "id": 11,
        "url": "https://static.{label}.fbcdn.net/{seg}/{seg}/{seg}/{seg}/{seg}/{seg}",
        "domain": "static.{label}.fbcdn.net",
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      },
      {
        "id": 12,
        "url": "https://static.{label}.fbcdn.net/{seg}/{seg}/{seg}/{seg}/{seg}/{seg}",
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        "url": "https://static.{label}.fbcdn.net/{seg}/{seg}/{seg}/{seg}/{seg}/{seg}",
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        "url": "https://static.{label}.fbcdn.net/{seg}/{seg}/{seg}/{seg}/{seg}/{seg}",
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        "url": "https://static.{label}.fbcdn.net/{seg}/{seg}/{seg}/{seg}/{seg}/{seg}",
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        "url": "https://static.{label}.fbcdn.net/{seg}/{seg}/{seg}/{seg}/{seg}",
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      },
      {
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        "domain": "www.facebook.com",
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        "startedAtMs": 1632
      },
      {
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        "url": "https://www.instagram.com/{seg}/{seg}",
        "domain": "www.instagram.com",
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        "resourceType": "xhr",
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        "thirdParty": true,
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        "url": "https://static.{label}.fbcdn.net/{seg}/{seg}/{seg}/{seg}",
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      },
      {
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        "domain": "www.facebook.com",
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        "resourceType": "xhr",
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        "thirdParty": false,
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        "blockedByShields": true,
        "startedAtMs": 1813
      },
      {
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        "url": "https://www.facebook.com/{seg}/{seg}",
        "domain": "www.facebook.com",
        "method": "POST",
        "resourceType": "xhr",
        "status": 200,
        "thirdParty": false,
        "tracker": null,
        "blockedByShields": true,
        "startedAtMs": 2610
      },
      {
        "id": 30,
        "url": "https://www.facebook.com/{seg}/{seg}",
        "domain": "www.facebook.com",
        "method": "POST",
        "resourceType": "xhr",
        "status": 200,
        "thirdParty": false,
        "tracker": null,
        "blockedByShields": true,
        "startedAtMs": 3593
      }
    ],
    "domains": [
      {
        "domain": "static.{label}.fbcdn.net",
        "requests": 23,
        "thirdParty": true,
        "tracker": null,
        "blockedByShields": false,
        "statuses": [
          200
        ],
        "resourceTypes": [
          "stylesheet",
          "image",
          "font",
          "script"
        ]
      },
      {
        "domain": "www.instagram.com",
        "requests": 1,
        "thirdParty": true,
        "tracker": null,
        "blockedByShields": false,
        "statuses": [
          200
        ],
        "resourceTypes": [
          "xhr"
        ]
      },
      {
        "domain": "www.facebook.com",
        "requests": 6,
        "thirdParty": false,
        "tracker": null,
        "blockedByShields": true,
        "statuses": [
          200
        ],
        "resourceTypes": [
          "document",
          "ping",
          "xhr"
        ]
      }
    ],
    "cookies": [
      {
        "name": "[redacted]",
        "domain": ".facebook.com",
        "path": "/",
        "sameSite": "None",
        "secure": true,
        "httpOnly": true,
        "session": false,
        "thirdParty": false
      },
      {
        "name": "[redacted]",
        "domain": ".facebook.com",
        "path": "/",
        "sameSite": "None",
        "secure": true,
        "httpOnly": true,
        "session": false,
        "thirdParty": false
      },
      {
        "name": "[redacted]",
        "domain": ".facebook.com",
        "path": "/",
        "sameSite": "None",
        "secure": true,
        "httpOnly": true,
        "session": false,
        "thirdParty": false
      },
      {
        "name": "[redacted]",
        "domain": ".facebook.com",
        "path": "/",
        "sameSite": "Lax",
        "secure": true,
        "httpOnly": false,
        "session": false,
        "thirdParty": false
      }
    ],
    "storage": [
      {
        "area": "localStorage",
        "key": "[redacted]",
        "valueBytes": 13
      },
      {
        "area": "localStorage",
        "key": "[redacted]",
        "valueBytes": 20
      },
      {
        "area": "localStorage",
        "key": "[redacted]",
        "valueBytes": 13
      },
      {
        "area": "sessionStorage",
        "key": "[redacted]",
        "valueBytes": 6
      }
    ],
    "fingerprintEvents": [
      {
        "api": "canvas.measureText",
        "count": 74
      },
      {
        "api": "canvas.toDataURL",
        "count": 1
      },
      {
        "api": "webgl.getParameter.UNMASKED_RENDERER_WEBGL",
        "count": 2
      },
      {
        "api": "webgl.getParameter.UNMASKED_VENDOR_WEBGL",
        "count": 2
      },
      {
        "api": "webgl.readPixels",
        "count": 1
      }
    ],
    "fingerprintDetections": [
      {
        "kind": "canvas-font-fingerprinting",
        "heuristic": "canvas-font-probing-v1",
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        "evidence": {
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          "maxDistinctFonts": 74,
          "maxDistinctTextSamples": 1,
          "maxTextLength": 13
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      },
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        "heuristic": "input-listener-coverage-v1",
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        "evidence": {
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            "input",
            "keydown",
            "keypress",
            "keyup",
            "paste"
          ],
          "listenerTargets": [
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            "other",
            "window"
          ],
          "thirdPartyOrigins": [
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          "totalListenerCalls": 21
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      },
      {
        "kind": "session-recording",
        "heuristic": "interaction-listener-coverage-v1",
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        "evidence": {
          "eventTypes": [
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            "input",
            "keydown",
            "keyup",
            "mousedown",
            "mousemove",
            "mouseup",
            "pointerdown",
            "pointermove",
            "pointerup",
            "scroll",
            "selectionchange",
            "touchmove",
            "touchstart",
            "visibilitychange",
            "wheel"
          ],
          "listenerTargets": [
            "document",
            "documentElement",
            "other",
            "window"
          ],
          "thirdPartyOrigins": [
            "https://static.{label}.fbcdn.net/"
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          "totalListenerCalls": 62
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      },
      {
        "kind": "webgl-fingerprinting",
        "heuristic": "webgl-entropy-read-v1",
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        "evidence": {
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          "parameters": [
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            "webgl.getParameter.UNMASKED_VENDOR_WEBGL"
          ],
          "getParameterCalls": 24,
          "readPixelsCalls": 1
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      }
    ],
    "screenshot": null,
    "warnings": [
      "This report is one automated, headless Chromium visit from a fixed en-US / UTC profile, with no scrolling, clicking, or consent interaction. Sites can behave differently for real users, browsers, regions, accounts, or network locations.",
      "Counts are a lower bound: trackers that load only after interaction or consent, and any activity inside Web or Service Workers, are not observed. Service labels use a US-biased hand-curated catalog, so regional services may be under-labeled. Cookie and storage figures are an end-of-visit snapshot.",
      "This scan typed a synthetic test value into 2 form fields (never submitting the form) to test whether typed input is captured and sent to third parties. The value is synthetic and is not stored."
    ]
  },
  "variant": {
    "ok": true,
    "schemaVersion": 1,
    "reportType": "single",
    "summary": {
      "pageTitle": "Facebook",
      "status": 200,
      "durationMs": 6118,
      "firstPartyDomain": "www.facebook.com",
      "totalRequests": 28,
      "thirdPartyRequests": 24,
      "knownTrackerRequests": 0,
      "thirdPartyDomains": 2,
      "cookies": 4,
      "thirdPartyCookies": 0,
      "storageEntries": 4,
      "fingerprintEvents": 80,
      "shieldsBlockedRequests": 4
    },
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      "finalUrl": "https://www.facebook.com/",
      "scannedAt": "2026-06-25T20:28:38.989Z",
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      "userAgent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/149.0.7827.55 Safari/537.36",
      "timezone": "UTC",
      "locale": "en-US",
      "language": "en-US",
      "viewport": {
        "width": 1440,
        "height": 980,
        "isMobile": false
      },
      "gpcEnabled": true,
      "consentMode": "observe",
      "automation": "playwright-chromium",
      "headless": true,
      "scannerEgress": "github-actions-ubuntu",
      "shieldsMode": "block-simulation",
      "adblock": {
        "active": true,
        "source": "Brave default ad-block lists",
        "lists": 31,
        "fetchedAt": "2026-06-19T17:24:24.927Z"
      },
      "trackerCatalog": {
        "source": "Hand-curated service catalog",
        "version": "hand-curated-2026.06",
        "region": "US-biased",
        "entries": 133,
        "curatedOverrides": 133,
        "license": "AGPL-3.0-or-later"
      },
      "scannerDisclosure": "Automated Chromium scan from github-actions-ubuntu with browser 149.0.7827.55, timezone UTC, locale en-US, the listed viewport, and Brave Shields block simulation. Treat results as reproducible evidence for this scan configuration, not a universal claim about all visitors."
    },
    "requests": [
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        "url": "https://www.facebook.com/",
        "domain": "www.facebook.com",
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      {
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        "domain": "static.{label}.fbcdn.net",
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        "status": 200,
        "thirdParty": true,
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        "blockedByShields": false,
        "startedAtMs": 563
      },
      {
        "id": 4,
        "url": "https://static.{label}.fbcdn.net/{seg}/{seg}/{seg}/{seg}",
        "domain": "static.{label}.fbcdn.net",
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        "resourceType": "image",
        "status": 200,
        "thirdParty": true,
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        "blockedByShields": false,
        "startedAtMs": 1077
      },
      {
        "id": 5,
        "url": "https://static.{label}.fbcdn.net/{seg}/{seg}/{seg}/{seg}",
        "domain": "static.{label}.fbcdn.net",
        "method": "GET",
        "resourceType": "font",
        "status": 200,
        "thirdParty": true,
        "tracker": null,
        "blockedByShields": false,
        "startedAtMs": 1203
      },
      {
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        "url": "https://static.{label}.fbcdn.net/{seg}/{seg}/{seg}/{seg}",
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        "resourceType": "font",
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        "thirdParty": true,
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      },
      {
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        "url": "https://static.{label}.fbcdn.net/{seg}/{seg}/{seg}/{seg}/{seg}",
        "domain": "static.{label}.fbcdn.net",
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        "thirdParty": true,
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      {
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        "startedAtMs": 3664
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        "thirdParty": true,
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        "statuses": [
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          "font",
          "script"
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      },
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    ],
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        "domain": ".facebook.com",
        "path": "/",
        "sameSite": "None",
        "secure": true,
        "httpOnly": true,
        "session": false,
        "thirdParty": false
      },
      {
        "name": "[redacted]",
        "domain": ".facebook.com",
        "path": "/",
        "sameSite": "None",
        "secure": true,
        "httpOnly": true,
        "session": false,
        "thirdParty": false
      },
      {
        "name": "[redacted]",
        "domain": ".facebook.com",
        "path": "/",
        "sameSite": "None",
        "secure": true,
        "httpOnly": true,
        "session": false,
        "thirdParty": false
      },
      {
        "name": "[redacted]",
        "domain": ".facebook.com",
        "path": "/",
        "sameSite": "Lax",
        "secure": true,
        "httpOnly": false,
        "session": false,
        "thirdParty": false
      }
    ],
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      {
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        "key": "[redacted]",
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      },
      {
        "area": "localStorage",
        "key": "[redacted]",
        "valueBytes": 20
      },
      {
        "area": "localStorage",
        "key": "[redacted]",
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      {
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      {
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      {
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        "heuristic": "canvas-font-probing-v1",
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            "window"
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            "mousedown",
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            "pointerdown",
            "pointermove",
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            "selectionchange",
            "touchmove",
            "touchstart",
            "visibilitychange",
            "wheel"
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            "documentElement",
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      },
      {
        "kind": "webgl-fingerprinting",
        "heuristic": "webgl-entropy-read-v1",
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        "evidence": {
          "readApis": [
            "webgl.readPixels"
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          "parameters": [
            "webgl.getParameter.UNMASKED_RENDERER_WEBGL",
            "webgl.getParameter.UNMASKED_VENDOR_WEBGL"
          ],
          "getParameterCalls": 24,
          "readPixelsCalls": 1
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    ],
    "screenshot": null,
    "warnings": [
      "This report is one automated, headless Chromium visit from a fixed en-US / UTC profile, with no scrolling, clicking, or consent interaction. Sites can behave differently for real users, browsers, regions, accounts, or network locations.",
      "Counts are a lower bound: trackers that load only after interaction or consent, and any activity inside Web or Service Workers, are not observed. Service labels use a US-biased hand-curated catalog, so regional services may be under-labeled. Cookie and storage figures are an end-of-visit snapshot.",
      "Brave Shields block simulation was enabled; matching requests were aborted before loading and are not included in request totals.",
      "This scan typed a synthetic test value into 2 form fields (never submitting the form) to test whether typed input is captured and sent to third parties. The value is synthetic and is not stored."
    ]
  },
  "diff": {
    "totalRequests": {
      "before": 30,
      "after": 28,
      "delta": -2
    },
    "thirdPartyRequests": {
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      "delta": 0
    },
    "knownTrackerRequests": {
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      "delta": 0
    },
    "thirdPartyDomains": {
      "before": 2,
      "after": 2,
      "delta": 0
    },
    "cookies": {
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      "delta": 0
    },
    "thirdPartyCookies": {
      "before": 0,
      "after": 0,
      "delta": 0
    },
    "storageEntries": {
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      "delta": 0
    },
    "fingerprintEvents": {
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      "after": 80,
      "delta": 0
    },
    "addedDomains": [],
    "removedDomains": [],
    "addedEntities": [],
    "removedEntities": [],
    "addedCookies": [],
    "removedCookies": [],
    "addedStorageKeys": [],
    "removedStorageKeys": [],
    "addedFingerprinting": [],
    "removedFingerprinting": [],
    "addedProvenance": [],
    "removedProvenance": [],
    "shieldsBlockedRequests": {
      "before": 5,
      "after": 4,
      "delta": -1
    }
  },
  "warnings": [
    "Shields comparison runs should be collected under matched crawl conditions. Differences can still reflect timing, experiments, cache state, consent state, or bot detection.",
    "No blocking: This report is one automated, headless Chromium visit from a fixed en-US / UTC profile, with no scrolling, clicking, or consent interaction. Sites can behave differently for real users, browsers, regions, accounts, or network locations.",
    "No blocking: Counts are a lower bound: trackers that load only after interaction or consent, and any activity inside Web or Service Workers, are not observed. Service labels use a US-biased hand-curated catalog, so regional services may be under-labeled. Cookie and storage figures are an end-of-visit snapshot.",
    "No blocking: This scan typed a synthetic test value into 2 form fields (never submitting the form) to test whether typed input is captured and sent to third parties. The value is synthetic and is not stored.",
    "Brave-list blocking: This report is one automated, headless Chromium visit from a fixed en-US / UTC profile, with no scrolling, clicking, or consent interaction. Sites can behave differently for real users, browsers, regions, accounts, or network locations.",
    "Brave-list blocking: Counts are a lower bound: trackers that load only after interaction or consent, and any activity inside Web or Service Workers, are not observed. Service labels use a US-biased hand-curated catalog, so regional services may be under-labeled. Cookie and storage figures are an end-of-visit snapshot.",
    "Brave-list blocking: Brave Shields block simulation was enabled; matching requests were aborted before loading and are not included in request totals.",
    "Brave-list blocking: This scan typed a synthetic test value into 2 form fields (never submitting the form) to test whether typed input is captured and sent to third parties. The value is synthetic and is not stored."
  ],
  "share": {
    "id": "20260625-cbd321851540c86d7a2fbb02b5e60b7f",
    "path": "/reports/20260625-cbd321851540c86d7a2fbb02b5e60b7f/",
    "jsonPath": "/reports/20260625-cbd321851540c86d7a2fbb02b5e60b7f.json"
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}