{
  "url": "https://business.facebook.com",
  "auditedAt": "2026-07-28T12:10:58.253Z",
  "mode": "report",
  "status": "completed",
  "statusDetail": "Completed atomic audit of the public unauthenticated login gateway. Authenticated Business Suite, Ads Manager, account recovery, and credentialed destinations were excluded because no test account was provided.",
  "page": {
    "appType": "hybrid",
    "framework": "Meta client runtime (no public framework marker)",
    "notes": "The requested URL redirects to a public login gateway. The gateway and consent state were audited; authenticated product templates were not silently treated as covered."
  },
  "evidenceUsed": [
    "screenshot",
    "dom",
    "evaluate-probe",
    "layout-metrics",
    "trace",
    "har",
    "discoverability",
    "headers",
    "cookies",
    "trackers",
    "images",
    "secrets",
    "heap-summary",
    "lighthouse",
    "Modern Web Guidance live feed"
  ],
  "guidanceConsulted": [
    "dark-mode",
    "accessibility",
    "adapt-scrollbar-to-contrast-preferences",
    "same-document-transitions",
    "scrollytelling",
    "physics-based-easing",
    "shrinking-header-on-scroll",
    "anchor-positioning-tab-underline",
    "directional-navigation-transitions",
    "light-dismiss-a-dialog",
    "declarative-dialog-popover-control",
    "complex-shapes",
    "fluid-scaling",
    "size-aware-styling",
    "improve-text-layout-and-legibility",
    "forms",
    "accessible-error-announcement",
    "identify-inp-causes",
    "visually-stable-font-fallbacks",
    "break-up-long-tasks",
    "optimize-image-priority",
    "identify-heavy-scripts",
    "move-dom-element-without-losing-state",
    "css",
    "html",
    "security",
    "privacy",
    "passkeys",
    "flicker-free-client-side-ab-testing",
    "resilient-context-menus-and-nested-dropdowns",
    "persistent-toast-notifications",
    "translator",
    "support-global-calendar-systems",
    "coordinate-global-events",
    "search-hidden-content",
    "autofill-address-form",
    "autofill-payment-form",
    "deliver-optimized-decorative-images",
    "deprioritize-background-fetches",
    "webmcp",
    "language-model",
    "manage-recurring-intervals"
  ],
  "artifacts": [
    {
      "type": "other",
      "path": "evidence/axe.json",
      "caption": "axe"
    },
    {
      "type": "other",
      "path": "evidence/cookies.json",
      "caption": "cookies"
    },
    {
      "type": "screenshot",
      "path": "evidence/dark.png",
      "caption": "dark",
      "condition": "prefers-color-scheme: dark",
      "findingIds": [
        "F01"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/discoverability-crawler.png",
      "caption": "discoverability crawler",
      "findingIds": [
        "F17",
        "F18"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/discoverability-rendered.png",
      "caption": "discoverability rendered",
      "findingIds": [
        "F17"
      ]
    },
    {
      "type": "discoverability",
      "path": "evidence/discoverability.json",
      "caption": "discoverability",
      "findingIds": [
        "F17",
        "F18"
      ]
    },
    {
      "type": "other",
      "path": "evidence/guidance-list.txt",
      "caption": "guidance list"
    },
    {
      "type": "other",
      "path": "evidence/guidance-retrieved.txt",
      "caption": "guidance retrieved"
    },
    {
      "type": "other",
      "path": "evidence/headers.json",
      "caption": "headers",
      "findingIds": [
        "F16"
      ]
    },
    {
      "type": "heap",
      "path": "evidence/heap-baseline.heapsnapshot",
      "caption": "heap baseline",
      "findingIds": [
        "F24"
      ]
    },
    {
      "type": "other",
      "path": "evidence/heap-comparison.json",
      "caption": "heap comparison"
    },
    {
      "type": "heap",
      "path": "evidence/heap-post.heapsnapshot",
      "caption": "heap post"
    },
    {
      "type": "other",
      "path": "evidence/images.json",
      "caption": "images",
      "findingIds": [
        "F12",
        "F21",
        "F22"
      ]
    },
    {
      "type": "layout",
      "path": "evidence/layout-mobile.json",
      "caption": "layout mobile",
      "findingIds": [
        "F11"
      ]
    },
    {
      "type": "lighthouse",
      "path": "evidence/lighthouse.json",
      "caption": "lighthouse",
      "findingIds": [
        "F02",
        "F06",
        "F08",
        "F09",
        "F13"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/login-desktop.png",
      "caption": "login desktop"
    },
    {
      "type": "screenshot",
      "path": "evidence/login-mobile.png",
      "caption": "login mobile"
    },
    {
      "type": "other",
      "path": "evidence/metadata.json",
      "caption": "metadata",
      "findingIds": [
        "F14",
        "F15"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/mobile.png",
      "caption": "mobile",
      "condition": "viewport: 360x800",
      "findingIds": [
        "F03",
        "F05",
        "F19",
        "F20"
      ]
    },
    {
      "type": "har-summary",
      "path": "evidence/network-summary.json",
      "caption": "network summary",
      "findingIds": [
        "F07",
        "F08",
        "F21",
        "F22",
        "F23"
      ]
    },
    {
      "type": "har",
      "path": "evidence/network.har",
      "caption": "network",
      "findingIds": [
        "F07",
        "F23"
      ]
    },
    {
      "type": "trace-summary",
      "path": "evidence/performance-trace-summary.json",
      "caption": "performance trace summary",
      "findingIds": [
        "F06"
      ]
    },
    {
      "type": "trace",
      "path": "evidence/performance-trace.json",
      "caption": "performance trace",
      "findingIds": [
        "F06"
      ]
    },
    {
      "type": "other",
      "path": "evidence/post-consent-state.json",
      "caption": "post consent state"
    },
    {
      "type": "other",
      "path": "evidence/recon-controls.json",
      "caption": "recon controls",
      "findingIds": [
        "F04"
      ]
    },
    {
      "type": "dom",
      "path": "evidence/recon-dom.json",
      "caption": "recon dom",
      "findingIds": [
        "F04",
        "F10"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/recon.png",
      "caption": "recon",
      "findingIds": [
        "F01",
        "F03",
        "F19",
        "F20"
      ]
    },
    {
      "type": "other",
      "path": "evidence/reduced-motion.json",
      "caption": "reduced motion"
    },
    {
      "type": "other",
      "path": "evidence/runtime-metrics.json",
      "caption": "runtime metrics",
      "findingIds": [
        "F24"
      ]
    },
    {
      "type": "other",
      "path": "evidence/secrets.json",
      "caption": "secrets"
    },
    {
      "type": "other",
      "path": "evidence/static-probe.json",
      "caption": "static probe",
      "findingIds": [
        "F05",
        "F09",
        "F10",
        "F11",
        "F13"
      ]
    },
    {
      "type": "other",
      "path": "evidence/trackers.json",
      "caption": "trackers"
    }
  ],
  "config": {
    "loaded": false
  },
  "coverage": {
    "catalogVersion": "modern-web-guidance@0.0.172",
    "catalogChecksum": "sha256:78ccfdb2d483f4c57d9dafed80fd86c6265585a56457c8dcfddc254b80fb44d7",
    "expected": 58,
    "recorded": 58,
    "judged": 58,
    "blocked": 0,
    "notRun": 0,
    "missing": 0,
    "unknown": 0,
    "duplicates": 0,
    "complete": true
  },
  "checkOutcomes": [
    {
      "principleId": "respect-user-preferences",
      "checkId": "respects-color-scheme",
      "status": "issues",
      "confidence": "high",
      "method": "Default and prefers-color-scheme: dark screenshot comparison",
      "evidence": "The dark-emulated capture retained the same white modal and light page palette as the default capture.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/dark.png",
        "evidence/recon.png"
      ],
      "findingIds": [
        "F01"
      ]
    },
    {
      "principleId": "respect-user-preferences",
      "checkId": "respects-reduced-motion",
      "status": "pass",
      "confidence": "high",
      "method": "Emulated reduced motion plus getAnimations/computed transition probe",
      "evidence": "prefers-reduced-motion: reduce matched; no active animations or smooth scrolling were present, and the CSS inventory contained 32 reduced-motion rules.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/reduced-motion.json",
        "evidence/static-probe.json"
      ]
    },
    {
      "principleId": "respect-user-preferences",
      "checkId": "respects-contrast",
      "status": "issues",
      "confidence": "high",
      "method": "Lighthouse contrast audit and visual inspection",
      "evidence": "Lighthouse found “Allow all cookies” at 4.23:1 instead of the required 4.5:1.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/lighthouse.json"
      ],
      "findingIds": [
        "F02"
      ]
    },
    {
      "principleId": "implement-natural-interactions",
      "checkId": "view-transitions",
      "status": "pass",
      "confidence": "medium",
      "method": "Rendered-state and animation inspection",
      "evidence": "The audited gateway has no same-document route swap; the loaded consent state is stable and no jarring animated swap was observed.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/recon.png",
        "evidence/reduced-motion.json"
      ]
    },
    {
      "principleId": "implement-natural-interactions",
      "checkId": "scroll-driven-animations",
      "status": "pass",
      "confidence": "high",
      "method": "Animation and layout inspection",
      "evidence": "No scroll-linked animation or parallax was present, so native scrolling is not blocked by main-thread visual effects.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/reduced-motion.json",
        "evidence/layout-mobile.json"
      ]
    },
    {
      "principleId": "implement-natural-interactions",
      "checkId": "physical-gestures",
      "status": "pass",
      "confidence": "medium",
      "method": "Mobile viewport interaction-surface inspection",
      "evidence": "The gateway exposes ordinary buttons and document scrolling, with no custom swipe, drag, overscroll, or pointer-driven gesture that fights platform behavior.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/mobile.png",
        "evidence/static-probe.json"
      ]
    },
    {
      "principleId": "provide-guided-navigation",
      "checkId": "scroll-state-aware-chrome",
      "status": "pass",
      "confidence": "medium",
      "method": "Full-page visual and DOM inspection",
      "evidence": "No sticky or affixed application chrome is used on this compact gateway, so there is no static scroll chrome obscuring content.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/recon.png",
        "evidence/recon-dom.json"
      ]
    },
    {
      "principleId": "provide-guided-navigation",
      "checkId": "anchored-positioning",
      "status": "pass",
      "confidence": "medium",
      "method": "Overlay/menu DOM and mobile screenshot inspection",
      "evidence": "The visible consent modal remains contained at 360px with zero horizontal overflow; no detached tooltip or manually drifting anchored surface was observed.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/mobile.png",
        "evidence/layout-mobile.json"
      ]
    },
    {
      "principleId": "provide-guided-navigation",
      "checkId": "directs-attention",
      "status": "pass",
      "confidence": "high",
      "method": "First-viewport screenshot and control inventory",
      "evidence": "Purpose copy leads directly to four clearly named authentication choices, while the modal presents two explicit consent actions.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/recon-controls.json",
        "evidence/mobile.png"
      ]
    },
    {
      "principleId": "maximize-content-reduce-noise",
      "checkId": "no-intrusive-interruptions",
      "status": "issues",
      "confidence": "high",
      "method": "First-load desktop and mobile screenshots",
      "evidence": "A modal consent wall obscures the core login page before user interaction.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/recon.png",
        "evidence/mobile.png"
      ],
      "findingIds": [
        "F03"
      ]
    },
    {
      "principleId": "maximize-content-reduce-noise",
      "checkId": "semantic-dismissible-primitives",
      "status": "issues",
      "confidence": "high",
      "method": "Dialog semantics DOM probe",
      "evidence": "The overlay uses role=dialog but has no accessible name and no aria-modal; the menu trigger also lacks an accessible label.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/recon-controls.json",
        "evidence/recon-dom.json"
      ],
      "findingIds": [
        "F04"
      ]
    },
    {
      "principleId": "maximize-content-reduce-noise",
      "checkId": "reduced-chrome",
      "status": "pass",
      "confidence": "medium",
      "method": "Underlying page visual review",
      "evidence": "Behind the consent layer, the gateway is content-focused: one purpose block, four account actions, and a compact footer without a persistent app frame.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/mobile.png",
        "evidence/post-consent-state.json"
      ]
    },
    {
      "principleId": "adapt-to-the-form-factor",
      "checkId": "responsive-no-horizontal-scroll",
      "status": "pass",
      "confidence": "high",
      "method": "Layout primitive at 360x800",
      "evidence": "scrollWidth, clientWidth and innerWidth were all 360px; horizontalOverflowPx was 0 and viewport metadata was present.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/layout-mobile.json",
        "evidence/mobile.png"
      ]
    },
    {
      "principleId": "adapt-to-the-form-factor",
      "checkId": "component-level-responsiveness",
      "status": "pass",
      "confidence": "high",
      "method": "CSSOM rule inventory and narrow screenshot",
      "evidence": "The CSSOM probe found 31 container rules, and the consent surface reflowed from a wide desktop panel to a single-column 360px layout.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/static-probe.json",
        "evidence/mobile.png",
        "evidence/recon.png"
      ]
    },
    {
      "principleId": "adapt-to-the-form-factor",
      "checkId": "input-modality-aware",
      "status": "issues",
      "confidence": "high",
      "method": "Computed interactive target-size probe",
      "evidence": "Twenty-eight actionable footer/locale links measured only 16px high.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/static-probe.json"
      ],
      "findingIds": [
        "F05"
      ]
    },
    {
      "principleId": "support-core-task-success",
      "checkId": "clear-purpose-and-primary-action",
      "status": "pass",
      "confidence": "high",
      "method": "First-viewport content and control inventory",
      "evidence": "The body states “Get started with business tools from Meta” and exposes Facebook, Instagram, account creation, and managed-account actions.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/post-consent-state.json",
        "evidence/recon-controls.json"
      ]
    },
    {
      "principleId": "support-core-task-success",
      "checkId": "primary-flow-completion",
      "status": "pass",
      "confidence": "medium",
      "method": "Authentication handoff inspection",
      "evidence": "For the auditable public gateway, all four authentication handoff choices are present, named, focusable, and wired as actions; credentialed destinations were intentionally excluded.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/recon-controls.json",
        "evidence/static-probe.json"
      ]
    },
    {
      "principleId": "support-core-task-success",
      "checkId": "clear-system-state-and-recovery",
      "status": "not-applicable",
      "confidence": "medium",
      "method": "Public-gateway state inventory",
      "evidence": "The pre-authentication gateway contains no local data-entry or submit result state; credential errors and recovery occur beyond the unauthenticated scope.",
      "reason": "The public gateway has no local success/error/empty workflow to exercise."
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "good-core-web-vitals",
      "status": "issues",
      "confidence": "high",
      "method": "Lighthouse and independent CDP trace",
      "evidence": "Lighthouse LCP was 11.6s and FCP 9.7s; the independent trace LCP was 3.25s.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/lighthouse.json",
        "evidence/performance-trace-summary.json"
      ],
      "findingIds": [
        "F06"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "visual-stability",
      "status": "pass",
      "confidence": "high",
      "method": "Mobile layout-shift observer and Lighthouse CLS",
      "evidence": "Both instruments reported CLS 0 with no observed shifts.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/layout-mobile.json",
        "evidence/lighthouse.json"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "efficient-main-thread",
      "status": "pass",
      "confidence": "high",
      "method": "CDP trace and Lighthouse TBT",
      "evidence": "Trace found one 60.83ms long task and 10.83ms TBT; Lighthouse TBT was 32ms, both low.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/performance-trace-summary.json",
        "evidence/lighthouse.json"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "efficient-resource-delivery",
      "status": "issues",
      "confidence": "high",
      "method": "HAR summary plus parser-initiator evidence",
      "evidence": "112 requests transferred 2.14MB; 21 stylesheets included numerous parser-inserted VeryHigh-priority render-blocking candidates.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/network-summary.json",
        "evidence/network.har"
      ],
      "findingIds": [
        "F07"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "trim-unused-and-duplicate-code",
      "status": "issues",
      "confidence": "high",
      "method": "HAR resource-type inventory",
      "evidence": "The gateway loaded 62 scripts (1.06MB) and 21 stylesheets (386KB) for a four-choice login surface.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/network-summary.json"
      ],
      "findingIds": [
        "F08"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "names-roles-labels",
      "status": "issues",
      "confidence": "high",
      "method": "Lighthouse accessibility audits and DOM control probe",
      "evidence": "Lighthouse found two unnamed focusable links; the custom probe counted five unlabeled interactives.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/lighthouse.json",
        "evidence/static-probe.json"
      ],
      "findingIds": [
        "F09"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "sufficient-contrast",
      "status": "issues",
      "confidence": "high",
      "method": "Lighthouse color-contrast audit",
      "evidence": "The primary cookie acceptance control measured 4.23:1 against a 4.5:1 requirement.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/lighthouse.json"
      ],
      "findingIds": [
        "F02"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "structure-and-focus",
      "status": "issues",
      "confidence": "high",
      "method": "Heading/landmark DOM probe",
      "evidence": "No H1 and no semantic landmarks were found; all detected headings were H2 elements inside consent content.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/static-probe.json"
      ],
      "findingIds": [
        "F10"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "legible-text",
      "status": "pass",
      "confidence": "high",
      "method": "Desktop/mobile visual review",
      "evidence": "Body copy wraps without clipping at 360px, remains readable, and the layout primitive found no overflow.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/mobile.png",
        "evidence/recon.png",
        "evidence/layout-mobile.json"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "zoom-reflow-targets-and-media",
      "status": "issues",
      "confidence": "high",
      "method": "Viewport metadata, reflow, and target-size probe",
      "evidence": "User scaling is not disabled and reflow has no overflow, but 28 links are only 16px high.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/static-probe.json",
        "evidence/layout-mobile.json"
      ],
      "findingIds": [
        "F11"
      ]
    },
    {
      "principleId": "follow-best-practices",
      "checkId": "no-console-errors",
      "status": "pass",
      "confidence": "high",
      "method": "Lighthouse console audit and failed-resource probe",
      "evidence": "Lighthouse errors-in-console passed, and the resource timing probe found no response status >=400.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/lighthouse.json",
        "evidence/runtime-metrics.json"
      ]
    },
    {
      "principleId": "follow-best-practices",
      "checkId": "sound-document-and-assets",
      "status": "issues",
      "confidence": "high",
      "method": "Document metadata and image audit",
      "evidence": "HTML5 doctype, UTF-8 and viewport are present, but 8 of 9 images omit intrinsic dimensions and 8 use PNG.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/static-probe.json",
        "evidence/images.json"
      ],
      "findingIds": [
        "F12"
      ]
    },
    {
      "principleId": "follow-best-practices",
      "checkId": "browser-platform-hygiene",
      "status": "pass",
      "confidence": "medium",
      "method": "Lighthouse best-practices and runtime inspection",
      "evidence": "The page produced no console errors, no failing timed resources, and no permission prompt on load; HTTPS passed.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/lighthouse.json",
        "evidence/runtime-metrics.json",
        "evidence/recon.png"
      ]
    },
    {
      "principleId": "be-discoverable",
      "checkId": "title-and-description",
      "status": "issues",
      "confidence": "high",
      "method": "DOM metadata probe and Lighthouse SEO",
      "evidence": "A descriptive title exists, but meta description is absent.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/static-probe.json",
        "evidence/lighthouse.json"
      ],
      "findingIds": [
        "F13"
      ]
    },
    {
      "principleId": "be-discoverable",
      "checkId": "crawlable-and-mobile-friendly",
      "status": "pass",
      "confidence": "high",
      "method": "Lighthouse SEO, link inventory, and viewport check",
      "evidence": "Robots and crawlable-anchor audits passed; real href links and viewport metadata are present.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/lighthouse.json",
        "evidence/recon-controls.json",
        "evidence/static-probe.json"
      ]
    },
    {
      "principleId": "be-discoverable",
      "checkId": "canonical-and-indexing-signals",
      "status": "issues",
      "confidence": "high",
      "method": "Canonical/hreflang/robots metadata probe",
      "evidence": "The 200 public page has locale choices but no canonical or hreflang links.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/metadata.json",
        "evidence/discoverability.json"
      ],
      "findingIds": [
        "F14"
      ]
    },
    {
      "principleId": "be-discoverable",
      "checkId": "structured-and-shareable-metadata",
      "status": "issues",
      "confidence": "high",
      "method": "Open Graph, Twitter Card and JSON-LD probe",
      "evidence": "No Open Graph, Twitter Card or JSON-LD metadata was present.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/metadata.json"
      ],
      "findingIds": [
        "F15"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "checkId": "secure-transport-and-headers",
      "status": "issues",
      "confidence": "high",
      "method": "Security headers, cookies, HTTPS and secret scan",
      "evidence": "HTTPS, HSTS, nosniff and CSP are present and no client secret was found, but Referrer-Policy is absent and CSP allows inline styles.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/headers.json",
        "evidence/cookies.json",
        "evidence/secrets.json"
      ],
      "findingIds": [
        "F16"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "checkId": "data-minimisation-and-third-parties",
      "status": "pass",
      "confidence": "high",
      "method": "Cookie, tracker, and HAR-origin inspection before consent",
      "evidence": "Before a consent choice, CDP found zero cookies and no known tracker domains; external requests were confined to Meta-operated facebook.com/fbcdn.net origins.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/cookies.json",
        "evidence/trackers.json",
        "evidence/network-summary.json"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "checkId": "in-context-permissions-and-modern-auth",
      "status": "pass",
      "confidence": "high",
      "method": "First-load screenshot and authentication control inventory",
      "evidence": "No browser permission prompt appeared; authentication offers Facebook, Instagram and a managed Meta account rather than exposing a local password form.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/recon.png",
        "evidence/recon-controls.json"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "checkId": "defensive-browser-policies",
      "status": "issues",
      "confidence": "high",
      "method": "Response-header policy inspection",
      "evidence": "HSTS, DENY framing and Permissions-Policy are present, but Referrer-Policy is missing.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/headers.json"
      ],
      "findingIds": [
        "F16"
      ]
    },
    {
      "principleId": "be-resilient",
      "checkId": "progressive-enhancement",
      "status": "issues",
      "confidence": "high",
      "method": "Raw HTML versus rendered DOM discoverability comparison",
      "evidence": "Only 11% of rendered content words were available in raw HTML without JavaScript.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/discoverability.json",
        "evidence/discoverability-rendered.png",
        "evidence/discoverability-crawler.png"
      ],
      "findingIds": [
        "F17"
      ]
    },
    {
      "principleId": "be-resilient",
      "checkId": "resilient-runtime-behaviour",
      "status": "pass",
      "confidence": "high",
      "method": "Runtime, mobile layout and console inspection",
      "evidence": "The modal stays within a 360px viewport with zero horizontal overflow, no console errors, and no failing resource status observed.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/layout-mobile.json",
        "evidence/mobile.png",
        "evidence/lighthouse.json"
      ]
    },
    {
      "principleId": "be-resilient",
      "checkId": "offline-and-installable",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Manifest/service-worker and site-purpose assessment",
      "evidence": "The audited surface is an online authentication gateway to account-bound business services; offline task completion is not meaningful.",
      "reason": "An unauthenticated login gateway to intrinsically online account services does not have a meaningful offline core task."
    },
    {
      "principleId": "be-resilient",
      "checkId": "network-and-http-failure-states",
      "status": "issues",
      "confidence": "high",
      "method": "JavaScript-disabled fallback inspection",
      "evidence": "When script execution is unavailable, only 11% of normal content survives and the primary rendered gateway is not preserved.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/discoverability.json",
        "evidence/discoverability-crawler.png"
      ],
      "findingIds": [
        "F18"
      ]
    },
    {
      "principleId": "be-internationalised",
      "checkId": "lang-dir-and-logical-properties",
      "status": "pass",
      "confidence": "medium",
      "method": "DOM language and locale-navigation inspection",
      "evidence": "The document declares lang=en and exposes multiple clearly named locale choices; no forced LTR dir attribute conflicts with language selection.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/static-probe.json",
        "evidence/recon-controls.json"
      ]
    },
    {
      "principleId": "be-internationalised",
      "checkId": "locale-aware-data",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Visible-content and DOM inspection",
      "evidence": "The gateway displays no locale-sensitive date, number, currency, duration, address, or calendar data to format.",
      "reason": "No locale-sensitive data appears on the audited public gateway."
    },
    {
      "principleId": "be-internationalised",
      "checkId": "time-zone-correctness",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Visible-content and DOM inspection",
      "evidence": "The gateway presents no times, events, schedules, or recurring intervals.",
      "reason": "No temporal data or scheduling feature appears on the audited public gateway."
    },
    {
      "principleId": "be-trustworthy",
      "checkId": "no-dark-patterns",
      "status": "issues",
      "confidence": "high",
      "method": "First-load consent screenshots and control comparison",
      "evidence": "The mandatory full-screen consent detour blocks all authentication actions before they can be used.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/recon.png",
        "evidence/mobile.png"
      ],
      "findingIds": [
        "F19"
      ]
    },
    {
      "principleId": "be-trustworthy",
      "checkId": "humane-error-handling",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Form inventory",
      "evidence": "document.forms was empty and the public gateway exposes no local editable fields or validation state.",
      "reason": "No local form validation or error-feedback surface exists on this gateway."
    },
    {
      "principleId": "be-trustworthy",
      "checkId": "trustworthy-input-assistance",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Form and input inventory",
      "evidence": "The DOM contains no public input fields requiring autocomplete or input assistance.",
      "reason": "No editable inputs exist on the audited public gateway."
    },
    {
      "principleId": "be-trustworthy",
      "checkId": "safe-commercial-and-account-flows",
      "status": "issues",
      "confidence": "high",
      "method": "Authentication and consent journey inspection",
      "evidence": "All account actions are blocked until the separate consent overlay is handled.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/recon.png",
        "evidence/mobile.png",
        "evidence/recon-controls.json"
      ],
      "findingIds": [
        "F20"
      ]
    },
    {
      "principleId": "be-sustainable",
      "checkId": "optimised-assets",
      "status": "issues",
      "confidence": "high",
      "method": "Image audit and HAR weight inspection",
      "evidence": "Eight legacy PNG images lack dimensions; responsive sources are missing on five and below-fold consent images load eagerly.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/images.json",
        "evidence/network-summary.json"
      ],
      "findingIds": [
        "F21"
      ]
    },
    {
      "principleId": "be-sustainable",
      "checkId": "no-wasteful-work",
      "status": "issues",
      "confidence": "high",
      "method": "HAR and hidden-image inspection",
      "evidence": "Initial load performs 112 requests including 62 scripts and fetches offscreen consent illustrations.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/network-summary.json",
        "evidence/images.json"
      ],
      "findingIds": [
        "F22"
      ]
    },
    {
      "principleId": "be-sustainable",
      "checkId": "third-party-and-media-budget",
      "status": "issues",
      "confidence": "high",
      "method": "HAR origin/byte budget inspection",
      "evidence": "Meta CDN and related-origin traffic accounts for 101 requests and 2.08MB of 2.14MB transferred.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/network-summary.json",
        "evidence/network.har"
      ],
      "findingIds": [
        "F23"
      ]
    },
    {
      "principleId": "be-agent-ready",
      "checkId": "structured-agent-capabilities",
      "status": "not-applicable",
      "confidence": "high",
      "method": "WebMCP/tool probe and unauthenticated-scope assessment",
      "evidence": "No WebMCP capabilities are exposed, but the public gateway has no safe domain action beyond handing off to credentialed authentication.",
      "reason": "Agent capabilities would require authenticated, permissioned business context and are not appropriate on this unauthenticated gateway."
    },
    {
      "principleId": "be-agent-ready",
      "checkId": "on-device-inference",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Built-in AI usage and feature-purpose assessment",
      "evidence": "The gateway performs no inference, summarisation, translation, or generative task.",
      "reason": "There is no inference-relevant feature on the public login gateway."
    },
    {
      "principleId": "be-memory-efficient",
      "checkId": "no-leak-under-repeated-interaction",
      "status": "pass",
      "confidence": "medium",
      "method": "Baseline/post heap summaries around 10 repeated consent disclosure toggles",
      "evidence": "After repeated disclosure clicks, node count fell by 1,022 and retained self-size changed by only +38,219 bytes, with no Detached constructor in the top post-interaction list.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/heap-baseline.heapsnapshot",
        "evidence/heap-post.heapsnapshot",
        "evidence/heap-comparison.json"
      ]
    },
    {
      "principleId": "be-memory-efficient",
      "checkId": "bounded-footprint",
      "status": "issues",
      "confidence": "medium",
      "method": "Heap summary and DOM/runtime metrics",
      "evidence": "The baseline heap held 1,368,314 V8 nodes and 53.1MB self-size for a 716-element login gateway.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/heap-baseline.heapsnapshot",
        "evidence/runtime-metrics.json"
      ],
      "findingIds": [
        "F24"
      ]
    },
    {
      "principleId": "be-memory-efficient",
      "checkId": "no-detached-dom-or-unbounded-listeners",
      "status": "pass",
      "confidence": "medium",
      "method": "Baseline/post heap constructor comparison",
      "evidence": "Node/edge counts decreased after repetition and no Detached constructor appeared in the post-interaction top constructors.",
      "pathIds": [
        "public-login"
      ],
      "artifacts": [
        "evidence/heap-comparison.json",
        "evidence/heap-post.heapsnapshot"
      ]
    }
  ],
  "principleOutcomes": [
    {
      "principleId": "respect-user-preferences",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F01",
        "F02"
      ]
    },
    {
      "principleId": "implement-natural-interactions",
      "expectation": "default",
      "status": "pass"
    },
    {
      "principleId": "provide-guided-navigation",
      "expectation": "default",
      "status": "pass"
    },
    {
      "principleId": "maximize-content-reduce-noise",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F03",
        "F04"
      ]
    },
    {
      "principleId": "adapt-to-the-form-factor",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F05"
      ]
    },
    {
      "principleId": "support-core-task-success",
      "expectation": "default",
      "status": "pass"
    },
    {
      "principleId": "be-fast-and-stable",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F06",
        "F07",
        "F08"
      ]
    },
    {
      "principleId": "be-inclusive",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F09",
        "F02",
        "F10",
        "F11"
      ]
    },
    {
      "principleId": "follow-best-practices",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F12"
      ]
    },
    {
      "principleId": "be-discoverable",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F13",
        "F14",
        "F15"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F16"
      ]
    },
    {
      "principleId": "be-resilient",
      "expectation": "contextual",
      "status": "issues",
      "findingIds": [
        "F17",
        "F18"
      ]
    },
    {
      "principleId": "be-internationalised",
      "expectation": "contextual",
      "status": "pass"
    },
    {
      "principleId": "be-trustworthy",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F19",
        "F20"
      ]
    },
    {
      "principleId": "be-sustainable",
      "expectation": "contextual",
      "status": "issues",
      "findingIds": [
        "F21",
        "F22",
        "F23"
      ]
    },
    {
      "principleId": "be-agent-ready",
      "expectation": "contextual",
      "status": "not-applicable",
      "reason": "Agent capabilities would require authenticated, permissioned business context and are not appropriate on this unauthenticated gateway. There is no inference-relevant feature on the public login gateway."
    },
    {
      "principleId": "be-memory-efficient",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F24"
      ]
    }
  ],
  "paths": [
    {
      "id": "public-login",
      "description": "Public pre-authentication gateway and initial cookie-consent state, representing the only accessible template. Audited at desktop, 360x800, dark preference, reduced motion, and no-JavaScript crawler conditions. Authenticated Business Suite, Ads Manager, credential recovery, and post-login workflows were not covered because they require credentials.",
      "url": "https://business.facebook.com/business/loginpage/",
      "conditions": [
        "desktop viewport",
        "viewport: 360x800",
        "prefers-color-scheme: dark",
        "prefers-reduced-motion: reduce",
        "JavaScript disabled/raw HTML",
        "cold-load performance"
      ],
      "result": "issues"
    }
  ],
  "findings": [
    {
      "id": "F01",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "respect-user-preferences",
      "principleCheckId": "respects-color-scheme",
      "guidanceId": "dark-mode",
      "severity": "medium",
      "confidence": "high",
      "summary": "The public login and consent surfaces do not adapt to dark color preference.",
      "evidence": "The dark-emulated screenshot is pixel-identical in palette and file size to the default capture: white modal and light page surfaces remain unchanged.",
      "suggestedFix": "Declare color-scheme and use preference-driven surface/text tokens, retaining tested contrast in both schemes.",
      "artifacts": [
        "evidence/dark.png",
        "evidence/recon.png"
      ],
      "effort": "small"
    },
    {
      "id": "F02",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "respect-user-preferences",
      "principleCheckId": "respects-contrast",
      "guidanceId": "accessibility",
      "severity": "low",
      "confidence": "high",
      "summary": "The primary cookie acceptance control narrowly misses minimum text contrast.",
      "evidence": "Lighthouse measured the 12px bold white “Allow all cookies” label at 4.23:1 against #1877f2, below 4.5:1.",
      "suggestedFix": "Adjust the button foreground/background token to reach at least 4.5:1 and verify forced-colors behavior.",
      "artifacts": [
        "evidence/lighthouse.json"
      ],
      "effort": "trivial"
    },
    {
      "id": "F03",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "maximize-content-reduce-noise",
      "principleCheckId": "no-intrusive-interruptions",
      "guidanceId": "light-dismiss-a-dialog",
      "severity": "high",
      "confidence": "high",
      "summary": "A blocking cookie interstitial obscures the core login content immediately on load.",
      "evidence": "Desktop and 360x800 screenshots show the consent dialog covering most of the first viewport before any user action; the underlying login actions are dimmed and unavailable.",
      "suggestedFix": "Use a compact, content-first consent surface that limits blocking to what is legally necessary and preserves immediate access to essential context/actions.",
      "artifacts": [
        "evidence/recon.png",
        "evidence/mobile.png"
      ],
      "effort": "medium"
    },
    {
      "id": "F04",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "maximize-content-reduce-noise",
      "principleCheckId": "semantic-dismissible-primitives",
      "guidanceId": "declarative-dialog-popover-control",
      "severity": "medium",
      "confidence": "high",
      "summary": "The consent overlay lacks complete modal semantics.",
      "evidence": "The DOM probe found role=dialog but no accessible label and no aria-modal; the control inventory also found an unlabeled menu-style control.",
      "suggestedFix": "Use a native dialog or complete role=dialog semantics with aria-modal, an accessible name, focus containment, and deterministic focus return.",
      "artifacts": [
        "evidence/recon-dom.json",
        "evidence/recon-controls.json"
      ],
      "effort": "small"
    },
    {
      "id": "F05",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "adapt-to-the-form-factor",
      "principleCheckId": "input-modality-aware",
      "guidanceId": "accessibility",
      "severity": "medium",
      "confidence": "high",
      "summary": "Many footer and locale links have undersized touch hit areas.",
      "evidence": "The computed target probe found 28 interactive links only 16px high, including Privacy, Terms, language choices, and Help Centre.",
      "suggestedFix": "Increase target boxes and spacing so touch targets are at least 24px minimum, preferably 44px on mobile, while retaining visible keyboard focus.",
      "artifacts": [
        "evidence/static-probe.json",
        "evidence/mobile.png"
      ],
      "effort": "small"
    },
    {
      "id": "F06",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-fast-and-stable",
      "principleCheckId": "good-core-web-vitals",
      "guidanceId": "identify-inp-causes",
      "severity": "high",
      "confidence": "high",
      "summary": "Cold-load paint performance is poor.",
      "evidence": "Lighthouse measured FCP 9.7s, LCP 11.6s, Speed Index 9.7s, and time to interactive 11.9s. A separate trace still measured LCP 3.25s, above the good threshold.",
      "suggestedFix": "Prioritise the actual LCP content, reduce critical CSS/script dependencies, and verify under representative mobile throttling.",
      "artifacts": [
        "evidence/lighthouse.json",
        "evidence/performance-trace-summary.json",
        "evidence/performance-trace.json"
      ],
      "effort": "large"
    },
    {
      "id": "F07",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-fast-and-stable",
      "principleCheckId": "efficient-resource-delivery",
      "guidanceId": "optimize-preload-priority",
      "severity": "high",
      "confidence": "high",
      "summary": "The login gateway has a long, heavy critical-resource path.",
      "evidence": "HAR recorded 112 requests and 2,140,487 transferred bytes, including 21 stylesheets and multiple parser-inserted VeryHigh-priority CSS candidates; 101 requests and 2.08MB came from related external origins.",
      "suggestedFix": "Collapse and prune critical CSS, preload only proven critical assets, defer nonessential consent illustrations and scripts, and apply durable caching.",
      "artifacts": [
        "evidence/network-summary.json",
        "evidence/network.har"
      ],
      "effort": "large"
    },
    {
      "id": "F08",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-fast-and-stable",
      "principleCheckId": "trim-unused-and-duplicate-code",
      "guidanceId": "identify-heavy-scripts",
      "severity": "medium",
      "confidence": "high",
      "summary": "The simple gateway ships disproportionate script and stylesheet volume.",
      "evidence": "HAR recorded 62 scripts transferring 1,057,506 bytes plus 21 stylesheets transferring 385,868 bytes for a page whose visible task is choosing one of four login methods.",
      "suggestedFix": "Use coverage and bundle analysis to remove unused modules and route-split consent/help code and authenticated-product code from the gateway.",
      "artifacts": [
        "evidence/network-summary.json",
        "evidence/lighthouse.json"
      ],
      "effort": "large"
    },
    {
      "id": "F09",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-inclusive",
      "principleCheckId": "names-roles-labels",
      "guidanceId": "accessibility",
      "severity": "medium",
      "confidence": "high",
      "summary": "Focusable links lack accessible names.",
      "evidence": "Lighthouse link-name audit failed on two tab-order anchors, including a store link and the consent menu trigger; the custom probe counted five unlabeled interactive elements.",
      "suggestedFix": "Give every interactive element a stable accessible name and use native button/link semantics where possible.",
      "artifacts": [
        "evidence/lighthouse.json",
        "evidence/static-probe.json"
      ],
      "effort": "small"
    },
    {
      "id": "F10",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-inclusive",
      "principleCheckId": "structure-and-focus",
      "guidanceId": "accessibility",
      "severity": "high",
      "confidence": "high",
      "summary": "The page lacks a useful top-level heading and landmark structure.",
      "evidence": "Rendered DOM contained no H1 and no main, nav, header, footer, aside, or equivalent role landmarks; only consent-content H2 elements were detected.",
      "suggestedFix": "Add a single descriptive H1 and semantic main/nav/footer landmarks, then verify focus enters and exits the modal predictably.",
      "artifacts": [
        "evidence/static-probe.json",
        "evidence/recon-dom.json"
      ],
      "effort": "medium"
    },
    {
      "id": "F11",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-inclusive",
      "principleCheckId": "zoom-reflow-targets-and-media",
      "guidanceId": "accessibility",
      "severity": "medium",
      "confidence": "high",
      "summary": "Interactive footer and language targets are too short for reliable touch use.",
      "evidence": "The target-size probe measured 28 actionable links at 16px high. Mobile reflow itself had no horizontal overflow, so the failure is target sizing rather than layout width.",
      "suggestedFix": "Expand clickable padding without preventing zoom and retest at 200% zoom and 360px reflow.",
      "artifacts": [
        "evidence/static-probe.json",
        "evidence/layout-mobile.json"
      ],
      "effort": "small"
    },
    {
      "id": "F12",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "follow-best-practices",
      "principleCheckId": "sound-document-and-assets",
      "guidanceId": "optimize-image-priority",
      "severity": "low",
      "confidence": "high",
      "summary": "Most consent illustrations omit intrinsic dimensions and use legacy PNG delivery.",
      "evidence": "The image audit found 8 of 9 images without width/height, 8 PNG assets, 5 without responsive sources, and 2 below-fold images not lazy-loaded.",
      "suggestedFix": "Set intrinsic dimensions, lazy-load below-fold illustrations, and serve appropriately sized AVIF/WebP responsive sources.",
      "artifacts": [
        "evidence/images.json"
      ],
      "effort": "medium"
    },
    {
      "id": "F13",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-discoverable",
      "principleCheckId": "title-and-description",
      "guidanceId": "html",
      "severity": "medium",
      "confidence": "high",
      "summary": "The public gateway has no meta description.",
      "evidence": "The DOM probe and Lighthouse agree that the title exists but meta[name=description] is absent.",
      "suggestedFix": "Add a concise, unique description explaining that this page signs users into Meta business tools.",
      "artifacts": [
        "evidence/static-probe.json",
        "evidence/lighthouse.json"
      ],
      "effort": "trivial"
    },
    {
      "id": "F14",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-discoverable",
      "principleCheckId": "canonical-and-indexing-signals",
      "guidanceId": "html",
      "severity": "low",
      "confidence": "high",
      "summary": "Localized login URLs have no canonical or hreflang signals.",
      "evidence": "Metadata inspection found no canonical link, no alternate hreflang links, and no robots meta despite a visible locale selector.",
      "suggestedFix": "Publish a stable canonical and reciprocal hreflang alternates for indexable locale variants, aligned with sitemap and robots policy.",
      "artifacts": [
        "evidence/metadata.json"
      ],
      "effort": "small"
    },
    {
      "id": "F15",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-discoverable",
      "principleCheckId": "structured-and-shareable-metadata",
      "guidanceId": "html",
      "severity": "low",
      "confidence": "high",
      "summary": "The public organization/login page has no share-preview or structured entity metadata.",
      "evidence": "Metadata inspection found no Open Graph tags, Twitter card tags, or JSON-LD.",
      "suggestedFix": "Add accurate Organization/WebSite JSON-LD and minimal Open Graph metadata matching visible content.",
      "artifacts": [
        "evidence/metadata.json"
      ],
      "effort": "small"
    },
    {
      "id": "F16",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-private-and-secure",
      "principleCheckId": "secure-transport-and-headers",
      "guidanceId": "security",
      "severity": "low",
      "confidence": "high",
      "summary": "The response omits Referrer-Policy and permits inline styles in CSP.",
      "evidence": "Header inspection found HTTPS, HSTS, nosniff, X-Frame-Options DENY and Permissions-Policy, but no Referrer-Policy; CSP style-src includes unsafe-inline.",
      "suggestedFix": "Set an explicit privacy-preserving Referrer-Policy and continue reducing CSP unsafe-inline usage with hashes/nonces where feasible.",
      "artifacts": [
        "evidence/headers.json"
      ],
      "effort": "medium"
    },
    {
      "id": "F17",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-resilient",
      "principleCheckId": "progressive-enhancement",
      "guidanceId": "flicker-free-client-side-ab-testing",
      "severity": "high",
      "confidence": "high",
      "summary": "Most meaningful gateway content is unavailable without JavaScript.",
      "evidence": "Discoverability measured only 11% rendered-word coverage in raw HTML: 37 raw content tokens versus 185 rendered, with crawler and rendered screenshots materially different.",
      "suggestedFix": "Server-render the purpose, login choices, and essential consent text/actions; hydrate only interaction enhancements.",
      "artifacts": [
        "evidence/discoverability.json",
        "evidence/discoverability-rendered.png",
        "evidence/discoverability-crawler.png"
      ],
      "effort": "large"
    },
    {
      "id": "F18",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-resilient",
      "principleCheckId": "network-and-http-failure-states",
      "guidanceId": "resilient-context-menus-and-nested-dropdowns",
      "severity": "medium",
      "confidence": "high",
      "summary": "The JavaScript-disabled/network-degraded state loses most of the primary experience.",
      "evidence": "The no-JavaScript crawler capture retained only 11% of rendered content, demonstrating that a failed script delivery removes the normal login gateway rather than presenting a useful fallback.",
      "suggestedFix": "Provide server-rendered fallback login links and an actionable retry/status message when required client resources fail.",
      "artifacts": [
        "evidence/discoverability.json",
        "evidence/discoverability-crawler.png"
      ],
      "effort": "large"
    },
    {
      "id": "F19",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-trustworthy",
      "principleCheckId": "no-dark-patterns",
      "guidanceId": "privacy",
      "severity": "high",
      "confidence": "high",
      "summary": "Consent blocks the account task before the user can proceed.",
      "evidence": "On both desktop and mobile the consent wall appears first and disables the underlying sign-in choices; mobile dedicates nearly the full viewport to the prompt. Decline and allow controls are visually similar, but the interruption remains coercive by placement.",
      "suggestedFix": "Minimise the blocking surface, make essential use possible without optional consent, and keep decline/revisit controls as direct and durable as acceptance.",
      "artifacts": [
        "evidence/recon.png",
        "evidence/mobile.png"
      ],
      "effort": "medium"
    },
    {
      "id": "F20",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-trustworthy",
      "principleCheckId": "safe-commercial-and-account-flows",
      "guidanceId": "privacy",
      "severity": "medium",
      "confidence": "high",
      "summary": "The authentication entry is gated behind a separate full-screen consent decision.",
      "evidence": "The first-load screenshots show all four account actions dimmed beneath the consent overlay, adding a mandatory detour before authentication.",
      "suggestedFix": "Keep privacy choice clear but decouple optional-cookie consent from access to essential authentication wherever policy permits.",
      "artifacts": [
        "evidence/recon.png",
        "evidence/mobile.png"
      ],
      "effort": "medium"
    },
    {
      "id": "F21",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-sustainable",
      "principleCheckId": "optimised-assets",
      "guidanceId": "deliver-optimized-decorative-images",
      "severity": "medium",
      "confidence": "high",
      "summary": "Consent artwork is delivered inefficiently.",
      "evidence": "Image audit found 8 legacy PNGs, 8 images without dimensions, 5 without responsive sources, and two below-fold images loaded eagerly.",
      "suggestedFix": "Convert decorative illustrations to modern formats, add responsive sources/intrinsic sizes, and defer assets outside the visible consent panel.",
      "artifacts": [
        "evidence/images.json",
        "evidence/network-summary.json"
      ],
      "effort": "medium"
    },
    {
      "id": "F22",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-sustainable",
      "principleCheckId": "no-wasteful-work",
      "guidanceId": "deprioritize-background-fetches",
      "severity": "medium",
      "confidence": "high",
      "summary": "The gateway performs substantial work unrelated to its visible task.",
      "evidence": "HAR shows 112 requests, 62 scripts and 21 stylesheets; several offscreen consent-card images are fetched on initial load.",
      "suggestedFix": "Defer hidden consent detail assets and noncritical modules until requested, and deprioritise background work.",
      "artifacts": [
        "evidence/network-summary.json",
        "evidence/images.json"
      ],
      "effort": "large"
    },
    {
      "id": "F23",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-sustainable",
      "principleCheckId": "third-party-and-media-budget",
      "guidanceId": "deprioritize-background-fetches",
      "severity": "medium",
      "confidence": "high",
      "summary": "Related-origin CDN traffic dominates the page budget.",
      "evidence": "101 of 112 requests and 2,079,503 of 2,140,487 transferred bytes came from static.xx.fbcdn.net or www.facebook.com. Even treating these as Meta-operated infrastructure, the transfer is disproportionate for a login chooser.",
      "suggestedFix": "Set a strict route budget, remove nonessential dependencies, and defer media/help assets until opened.",
      "artifacts": [
        "evidence/network-summary.json",
        "evidence/network.har"
      ],
      "effort": "large"
    },
    {
      "id": "F24",
      "pathId": "public-login",
      "url": "https://business.facebook.com/business/loginpage/",
      "principleId": "be-memory-efficient",
      "principleCheckId": "bounded-footprint",
      "guidanceId": "performance",
      "severity": "medium",
      "confidence": "medium",
      "summary": "The baseline JavaScript heap is large for a pre-authentication gateway.",
      "evidence": "Heap summary reported 1,368,314 V8 nodes, 4,244,945 edges and 53,144,077 self-size bytes while the rendered DOM contained only 716 elements.",
      "suggestedFix": "Profile retained native/object populations and avoid loading authenticated-product runtime and hidden consent content before it is needed.",
      "artifacts": [
        "evidence/heap-baseline.heapsnapshot",
        "evidence/runtime-metrics.json"
      ],
      "effort": "large"
    }
  ],
  "taskList": [
    {
      "id": "T01",
      "title": "Make the primary gateway server-rendered and resilient",
      "priority": 1,
      "findingIds": [
        "F17",
        "F18"
      ],
      "guidanceId": "flicker-free-client-side-ab-testing",
      "status": "open"
    },
    {
      "id": "T02",
      "title": "Cut the login route critical path and bundle budget",
      "priority": 2,
      "findingIds": [
        "F06",
        "F07",
        "F08",
        "F22",
        "F23",
        "F24"
      ],
      "guidanceId": "identify-heavy-scripts",
      "status": "open"
    },
    {
      "id": "T03",
      "title": "Replace the blocking consent experience with an accessible, proportionate flow",
      "priority": 3,
      "findingIds": [
        "F03",
        "F04",
        "F19",
        "F20"
      ],
      "guidanceId": "light-dismiss-a-dialog",
      "status": "open"
    },
    {
      "id": "T04",
      "title": "Restore semantic structure, names, contrast, and target sizing",
      "priority": 4,
      "findingIds": [
        "F02",
        "F05",
        "F09",
        "F10",
        "F11"
      ],
      "guidanceId": "accessibility",
      "status": "open"
    },
    {
      "id": "T05",
      "title": "Optimise and defer consent artwork",
      "priority": 5,
      "findingIds": [
        "F12",
        "F21"
      ],
      "guidanceId": "deliver-optimized-decorative-images",
      "status": "open"
    },
    {
      "id": "T06",
      "title": "Complete search and sharing metadata",
      "priority": 6,
      "findingIds": [
        "F13",
        "F14",
        "F15"
      ],
      "guidanceId": "html",
      "status": "open"
    },
    {
      "id": "T07",
      "title": "Add preference-driven dark styling and tighten response policies",
      "priority": 7,
      "findingIds": [
        "F01",
        "F16"
      ],
      "guidanceId": "dark-mode",
      "status": "open"
    }
  ],
  "budget": {
    "wallClockSeconds": 420,
    "pathCount": 1,
    "auditPasses": 1
  },
  "agent": "pi",
  "runId": "2026-07-28T12-10-58-253Z"
}
