{
  "schemaVersion": 3,
  "importerVersion": "404-observations-6",
  "redactions": [
    "Request URLs and bodies, cookies, extracted values and hashes, WebSocket payloads, push endpoints, raw errors, local paths, and unknown fields are omitted.",
    "Caller and frame URL queries, fragments, credentials, ports, and identifier-like path segments are omitted."
  ],
  "id": "booking-com",
  "domain": "booking.com",
  "url": "https://booking.com",
  "runs": [
    {
      "id": "headful-53fb8531367a",
      "mode": "headful",
      "modeInferred": false,
      "scannedAt": "2026-10-21T23:02:56.874369Z",
      "scannerVersion": "0.3",
      "browserVersion": "156.0.8078.4",
      "finalUrl": "https://www.booking.com/",
      "httpStatus": 202,
      "pageTitle": "Booking.com | Official site | The best hotels, flights, car rentals & accommodations",
      "pageState": "document",
      "measurementStatus": "ok",
      "finding": "not_observed",
      "signals": {
        "canvas": false,
        "webgl": false,
        "audio": false,
        "fonts": false,
        "device": false
      },
      "collectionCallers": [],
      "apiCalls": [
        {
          "api": "canvas.getContext",
          "count": 1,
          "callers": [],
          "inlineCaller": true,
          "frame": "https://www.booking.com/"
        }
      ],
      "evidenceSnippets": [],
      "transmission": [],
      "providers": [
        {
          "name": "Google Ads",
          "hosts": [
            "securepubads.g.doubleclick.net"
          ]
        }
      ],
      "staticAnalysis": [
        {
          "url": "https://www.booking.com/[redacted-id]/[redacted-id]/[redacted-id]/challenge.js",
          "libraries": [],
          "apiPatternCount": 9
        }
      ],
      "cnameRecords": [],
      "serviceWorkers": [],
      "thirdPartyHosts": [
        "cdn.cookielaw.org",
        "cf.bstatic.com",
        "securepubads.g.doubleclick.net"
      ],
      "requestCount": 133,
      "scriptsCaptured": 2,
      "framesSeen": 1,
      "googleAdsObserved": true,
      "source": {
        "file": "results/headful/booking-com-20261021T230256.json",
        "sha256": "53fb8531367a10670319b250cbd5af0aae65fcd9452637352d79ff15d9addd1f"
      },
      "scanUrl": "https://booking.com",
      "supplementary": false,
      "partial": false,
      "navigationStatus": null
    },
    {
      "id": "headful-e129e516462f",
      "mode": "headful",
      "modeInferred": false,
      "scannedAt": "2026-10-22T14:14:42.995416Z",
      "scannerVersion": "0.4",
      "browserVersion": "156.0.8078.4",
      "scanUrl": "https://booking.com",
      "supplementary": false,
      "partial": false,
      "navigationStatus": "attempt_started",
      "finalUrl": null,
      "httpStatus": null,
      "pageTitle": null,
      "pageState": "unmeasured",
      "measurementStatus": "scanner_error",
      "finding": "unmeasured",
      "signals": {
        "canvas": null,
        "webgl": null,
        "audio": null,
        "fonts": null,
        "device": null
      },
      "collectionCallers": [],
      "apiCalls": [],
      "evidenceSnippets": [],
      "transmission": [],
      "providers": [],
      "staticAnalysis": [],
      "cnameRecords": [],
      "serviceWorkers": [],
      "thirdPartyHosts": [],
      "requestCount": 0,
      "scriptsCaptured": 0,
      "framesSeen": null,
      "googleAdsObserved": null,
      "source": {
        "file": "results/headful/booking-com-20261022T141442.json",
        "sha256": "e129e516462f31e55261249cf835a7b7f06fb46626a0ef44803e040242d9672d"
      }
    },
    {
      "id": "headful-74b089f571fd",
      "mode": "headful",
      "modeInferred": false,
      "scannedAt": "2026-10-22T14:14:43.588850Z",
      "scannerVersion": "0.4",
      "browserVersion": "156.0.8078.4",
      "scanUrl": "https://booking.com",
      "supplementary": false,
      "partial": false,
      "navigationStatus": "error",
      "finalUrl": null,
      "httpStatus": null,
      "pageTitle": "www.booking.com",
      "pageState": "unmeasured",
      "measurementStatus": "navigation_failed",
      "finding": "unmeasured",
      "signals": {
        "canvas": null,
        "webgl": null,
        "audio": null,
        "fonts": null,
        "device": null
      },
      "collectionCallers": [],
      "apiCalls": [
        {
          "api": "canvas.getContext",
          "count": 1,
          "callers": [],
          "inlineCaller": true,
          "frame": null
        },
        {
          "api": "navigator.userAgent",
          "count": 2,
          "callers": [],
          "inlineCaller": true,
          "frame": null
        },
        {
          "api": "window.devicePixelRatio",
          "count": 1,
          "callers": [],
          "inlineCaller": true,
          "frame": null
        }
      ],
      "evidenceSnippets": [],
      "transmission": [],
      "providers": [],
      "staticAnalysis": [],
      "cnameRecords": [],
      "serviceWorkers": [],
      "thirdPartyHosts": [],
      "requestCount": 3,
      "scriptsCaptured": 0,
      "framesSeen": 1,
      "googleAdsObserved": false,
      "source": {
        "file": "results/headful/booking-com-20261022T141443.json",
        "sha256": "74b089f571fd2009b0f8afeb7719a258cfa4eaa7cfcf293b1494ab7a621ddea8"
      }
    },
    {
      "id": "headful-b54cccdbfeec",
      "mode": "headful",
      "modeInferred": false,
      "scannedAt": "2026-10-22T19:46:50.833847Z",
      "scannerVersion": "0.4",
      "browserVersion": "156.0.8078.4",
      "scanUrl": "https://booking.com",
      "supplementary": false,
      "partial": false,
      "navigationStatus": "attempt_started",
      "finalUrl": null,
      "httpStatus": null,
      "pageTitle": null,
      "pageState": "unmeasured",
      "measurementStatus": "scanner_error",
      "finding": "unmeasured",
      "signals": {
        "canvas": null,
        "webgl": null,
        "audio": null,
        "fonts": null,
        "device": null
      },
      "collectionCallers": [],
      "apiCalls": [],
      "evidenceSnippets": [],
      "transmission": [],
      "providers": [],
      "staticAnalysis": [],
      "cnameRecords": [],
      "serviceWorkers": [],
      "thirdPartyHosts": [],
      "requestCount": 0,
      "scriptsCaptured": 0,
      "framesSeen": null,
      "googleAdsObserved": null,
      "source": {
        "file": "results/headful/booking-com-20261022T194650.json",
        "sha256": "b54cccdbfeec250ca5b0963cf39459128b99add5f75bcd781f4e6caccda6c676"
      }
    },
    {
      "id": "headful-4210f76caef9",
      "mode": "headful",
      "modeInferred": false,
      "scannedAt": "2026-10-22T19:46:51.546710Z",
      "scannerVersion": "0.4",
      "browserVersion": "156.0.8078.4",
      "scanUrl": "https://booking.com",
      "supplementary": false,
      "partial": true,
      "navigationStatus": "committed",
      "finalUrl": "https://www.booking.com/",
      "httpStatus": 200,
      "pageTitle": "Booking.com | Official site | The best hotels, flights, car rentals & accommodations",
      "pageState": "document",
      "measurementStatus": "ok",
      "finding": "not_observed",
      "signals": {
        "canvas": false,
        "webgl": false,
        "audio": false,
        "fonts": false,
        "device": false
      },
      "collectionCallers": [],
      "apiCalls": [
        {
          "api": "canvas.getContext",
          "count": 1,
          "callers": [],
          "inlineCaller": true,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "document.cookie.read",
          "count": 7,
          "callers": [
            {
              "url": "https://www.booking.com/",
              "line": 153,
              "column": 14176
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "document.cookie.write",
          "count": 2,
          "callers": [
            {
              "url": "https://www.booking.com/",
              "line": 153,
              "column": 14394
            },
            {
              "url": "https://www.booking.com/",
              "line": 153,
              "column": 14474
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "navigator.userAgent",
          "count": 2,
          "callers": [
            {
              "url": "https://cf.bstatic.com/psb/capla/static/js/81da5f32.a942ad2f.chunk.js",
              "line": 2,
              "column": 277950
            },
            {
              "url": "https://cf.bstatic.com/psb/capla/static/js/client.4b84af48.js",
              "line": 8,
              "column": 561505
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        }
      ],
      "evidenceSnippets": [],
      "transmission": [],
      "providers": [
        {
          "name": "Google Ads",
          "hosts": [
            "securepubads.g.doubleclick.net"
          ]
        }
      ],
      "staticAnalysis": [],
      "cnameRecords": [],
      "serviceWorkers": [],
      "thirdPartyHosts": [
        "cdn.cookielaw.org",
        "cf.bstatic.com",
        "q-xx.bstatic.com",
        "r-xx.bstatic.com",
        "securepubads.g.doubleclick.net",
        "t-cf.bstatic.com"
      ],
      "requestCount": 270,
      "scriptsCaptured": 40,
      "framesSeen": 1,
      "googleAdsObserved": true,
      "source": {
        "file": "results/headful/booking-com-20261022T194651.json",
        "sha256": "4210f76caef9b470486d76e5c7c0bf3e14f9f613240d384c4a91a46ca9fc5951"
      }
    },
    {
      "id": "research-32a5fdb8f9e3",
      "mode": "research",
      "modeInferred": false,
      "scannedAt": "2026-10-21T21:22:21.126056Z",
      "scannerVersion": "0.3",
      "browserVersion": "156.0.8078.4",
      "finalUrl": null,
      "httpStatus": null,
      "pageTitle": null,
      "pageState": "unmeasured",
      "measurementStatus": "navigation_failed",
      "finding": "unmeasured",
      "signals": {
        "canvas": null,
        "webgl": null,
        "audio": null,
        "fonts": null,
        "device": null
      },
      "collectionCallers": [],
      "apiCalls": [],
      "evidenceSnippets": [],
      "transmission": [],
      "providers": [],
      "staticAnalysis": [],
      "cnameRecords": [],
      "serviceWorkers": [],
      "thirdPartyHosts": [],
      "requestCount": 0,
      "scriptsCaptured": 0,
      "framesSeen": null,
      "googleAdsObserved": null,
      "source": {
        "file": "results/headless/booking-com-20261021T212221.json",
        "sha256": "32a5fdb8f9e39a19c9b5dd889d7fed04a48f70a9926e6862f7a5e09fd1c8773c"
      },
      "scanUrl": "https://booking.com",
      "supplementary": false,
      "partial": false,
      "navigationStatus": null
    },
    {
      "id": "research-6c3adcf868fd",
      "mode": "research",
      "modeInferred": false,
      "scannedAt": "2026-10-22T17:44:12.430551Z",
      "scannerVersion": "0.4",
      "browserVersion": "156.0.8078.4",
      "scanUrl": "https://booking.com",
      "supplementary": false,
      "partial": true,
      "navigationStatus": "committed",
      "finalUrl": "https://www.booking.com/",
      "httpStatus": 200,
      "pageTitle": "Booking.com | Official site | The best hotels, flights, car rentals & accommodations",
      "pageState": "document",
      "measurementStatus": "ok",
      "finding": "signals",
      "signals": {
        "canvas": false,
        "webgl": false,
        "audio": false,
        "fonts": false,
        "device": true
      },
      "collectionCallers": [],
      "apiCalls": [
        {
          "api": "canvas.getContext",
          "count": 1,
          "callers": [],
          "inlineCaller": true,
          "frame": "https://cm.g.doubleclick.net/partnerpixels"
        },
        {
          "api": "canvas.getContext",
          "count": 1,
          "callers": [],
          "inlineCaller": true,
          "frame": "https://e3965682e08c3aedbdd796dcf46c564c.safeframe.googlesyndication.com/safeframe/1-0-45/html/container.html"
        },
        {
          "api": "canvas.getContext",
          "count": 1,
          "callers": [],
          "inlineCaller": true,
          "frame": "https://pagead2.googlesyndication.com/pagead/s/eeframe.html"
        },
        {
          "api": "canvas.getContext",
          "count": 1,
          "callers": [],
          "inlineCaller": true,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "document.cookie.read",
          "count": 51,
          "callers": [
            {
              "url": "https://cf.bstatic.com/psb/capla/static/js/dc32f6b7.c74b5a8a.chunk.js",
              "line": 2,
              "column": 87661
            },
            {
              "url": "https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610190101/pubads_impl.js",
              "line": 19,
              "column": 47505
            },
            {
              "url": "https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610190101/pubads_impl.js",
              "line": 23,
              "column": 3123
            },
            {
              "url": "https://securepubads.g.doubleclick.net/tag/js/gpt.js",
              "line": 11,
              "column": 18236
            },
            {
              "url": "https://www.booking.com/",
              "line": 39,
              "column": 14176
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "document.cookie.write",
          "count": 7,
          "callers": [
            {
              "url": "https://cf.bstatic.com/psb/capla/static/js/2d35db29.2fee358a.chunk.js",
              "line": 1,
              "column": 32803
            },
            {
              "url": "https://cf.bstatic.com/psb/capla/static/js/dc32f6b7.c74b5a8a.chunk.js",
              "line": 2,
              "column": 266586
            },
            {
              "url": "https://www.booking.com/",
              "line": 39,
              "column": 7862
            },
            {
              "url": "https://www.booking.com/",
              "line": 39,
              "column": 14394
            },
            {
              "url": "https://www.booking.com/",
              "line": 39,
              "column": 14474
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "navigator.deviceMemory",
          "count": 2,
          "callers": [
            {
              "url": "https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610190101/pubads_impl.js",
              "line": 23,
              "column": 318827
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "navigator.hardwareConcurrency",
          "count": 1,
          "callers": [
            {
              "url": "https://cf.bstatic.com/psb/capla/static/js/dc32f6b7.c74b5a8a.chunk.js",
              "line": 2,
              "column": 289863
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "navigator.language",
          "count": 31,
          "callers": [
            {
              "url": "https://cf.bstatic.com/psb/capla/static/js/0fdff3cd.badfd118.chunk.js",
              "line": 2,
              "column": 4510
            },
            {
              "url": "https://cf.bstatic.com/psb/capla/static/js/35325389.f0b0422e.chunk.js",
              "line": 2,
              "column": 54337
            },
            {
              "url": "https://cf.bstatic.com/psb/capla/static/js/81da5f32.a942ad2f.chunk.js",
              "line": 2,
              "column": 91736
            },
            {
              "url": "https://cf.bstatic.com/psb/capla/static/js/8f1f9b37.5331a0f2.chunk.js",
              "line": 2,
              "column": 9049
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "navigator.userAgent",
          "count": 132,
          "callers": [
            {
              "url": "https://cf.bstatic.com/psb/capla/static/js/81da5f32.a942ad2f.chunk.js",
              "line": 2,
              "column": 277950
            },
            {
              "url": "https://cf.bstatic.com/psb/capla/static/js/client.4b84af48.js",
              "line": 8,
              "column": 561505
            },
            {
              "url": "https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610190101/pubads_impl.js",
              "line": 19,
              "column": 3706
            },
            {
              "url": "https://securepubads.g.doubleclick.net/tag/js/gpt.js",
              "line": 6,
              "column": 1336
            },
            {
              "url": "https://securepubads.g.doubleclick.net/tag/js/gpt.js",
              "line": 11,
              "column": 33529
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "screen.availHeight",
          "count": 2,
          "callers": [
            {
              "url": "https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610190101/pubads_impl.js",
              "line": 23,
              "column": 318483
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "screen.availWidth",
          "count": 2,
          "callers": [
            {
              "url": "https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610190101/pubads_impl.js",
              "line": 23,
              "column": 318543
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "screen.colorDepth",
          "count": 2,
          "callers": [
            {
              "url": "https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610190101/pubads_impl.js",
              "line": 23,
              "column": 318602
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "screen.height",
          "count": 4,
          "callers": [
            {
              "url": "https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610190101/pubads_impl.js",
              "line": 19,
              "column": 152889
            },
            {
              "url": "https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610190101/pubads_impl.js",
              "line": 23,
              "column": 318375
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "screen.width",
          "count": 4,
          "callers": [
            {
              "url": "https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610190101/pubads_impl.js",
              "line": 19,
              "column": 152871
            },
            {
              "url": "https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610190101/pubads_impl.js",
              "line": 23,
              "column": 318429
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        },
        {
          "api": "window.devicePixelRatio",
          "count": 2,
          "callers": [
            {
              "url": "https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202610190101/pubads_impl.js",
              "line": 23,
              "column": 318651
            }
          ],
          "inlineCaller": false,
          "frame": "https://www.booking.com/"
        }
      ],
      "evidenceSnippets": [],
      "transmission": [],
      "providers": [
        {
          "name": "Google Ads",
          "hosts": [
            "cm.g.doubleclick.net",
            "e3965682e08c3aedbdd796dcf46c564c.safeframe.googlesyndication.com",
            "pagead2.googlesyndication.com",
            "securepubads.g.doubleclick.net",
            "tpc.googlesyndication.com"
          ]
        },
        {
          "name": "Google Tag Manager",
          "hosts": [
            "www.googletagmanager.com"
          ]
        }
      ],
      "staticAnalysis": [],
      "cnameRecords": [],
      "serviceWorkers": [],
      "thirdPartyHosts": [
        "awswaf.com",
        "bat.bing.com",
        "bstatic.com",
        "c.amazon-adsystem.com",
        "cdn.cookielaw.org",
        "cf.bstatic.com",
        "cm.g.doubleclick.net",
        "dynamic.criteo.com",
        "e3965682e08c3aedbdd796dcf46c564c.safeframe.googlesyndication.com",
        "ep1.adtrafficquality.google",
        "fonts.googleapis.com",
        "gum.criteo.com",
        "id5-sync.com",
        "image6.pubmatic.com",
        "js.adsrvr.org",
        "lb.eu-1-id5-sync.com",
        "lbs.eu-1-id5-sync.com",
        "pagead2.googlesyndication.com",
        "q-xx.bstatic.com",
        "r-xx.bstatic.com",
        "s.yimg.jp",
        "securepubads.g.doubleclick.net",
        "t-cf.bstatic.com",
        "tag.flvcdn.net",
        "tpc.googlesyndication.com",
        "us.creativecdn.com",
        "www.googletagmanager.com",
        "www.redditstatic.com",
        "z.moatads.com"
      ],
      "requestCount": 305,
      "scriptsCaptured": 26,
      "framesSeen": 5,
      "googleAdsObserved": true,
      "source": {
        "file": "results/headless/booking-com-20261022T174412.json",
        "sha256": "6c3adcf868fdcf4428b06d5b22c8f893177de027f739ed5051da54da3d8a6b16"
      }
    }
  ]
}
