{
  "url": "https://novel18.syosetu.com",
  "auditedAt": "2026-07-24T04:27:29.092Z",
  "mode": "report",
  "status": "completed",
  "statusDetail": "Atomic audit completed across the public gateway, mandatory age gate, representative destination attempts, and error recovery page.",
  "page": {
    "appType": "mpa",
    "framework": "Server-rendered HTML with legacy jQuery/jQuery UI",
    "notes": "novel18.syosetu.com redirects to nl.syosetu.com. Restricted destinations share a JavaScript-and-cookie age gate."
  },
  "evidenceUsed": [
    "screenshot",
    "DOM/computed-style inspection",
    "evaluate probes",
    "layout metrics",
    "HAR",
    "DevTools trace",
    "Lighthouse",
    "discoverability/no-JS comparison",
    "security headers",
    "cookies",
    "trackers",
    "secret scan",
    "image audit",
    "heap summary",
    "curl HTTP/robots/sitemap recon",
    "Modern Web Guidance 0.0.172"
  ],
  "guidanceConsulted": [
    "dark-mode",
    "accessibility",
    "adapt-scrollbar-to-contrast-preferences",
    "same-document-transitions",
    "cross-document-transitions",
    "scrollytelling",
    "physics-based-easing",
    "shrinking-header-on-scroll",
    "position-aware-tooltips",
    "navigation-drawer",
    "light-dismiss-a-dialog",
    "declarative-dialog-popover-control",
    "css-layout",
    "fluid-scaling",
    "calculate-with-intrinsic-sizes",
    "size-aware-styling",
    "forms",
    "accessible-error-announcement",
    "performance",
    "optimize-image-priority",
    "break-up-long-tasks",
    "identify-heavy-scripts",
    "improve-text-layout-and-legibility",
    "precise-text-alignment",
    "visually-stable-font-fallbacks",
    "html",
    "reduce-style-repetition",
    "security",
    "privacy",
    "batch-analytics-events",
    "passkeys",
    "flicker-free-client-side-ab-testing",
    "persistent-toast-notifications",
    "translator",
    "support-global-calendar-systems",
    "coordinate-global-events",
    "declarative-button-actions",
    "validate-input-after-interaction",
    "autofill-sign-in-form",
    "deliver-optimized-decorative-images",
    "deprioritize-background-fetches",
    "efficient-background-processing",
    "webmcp",
    "agentic-forms",
    "language-model",
    "summarizer",
    "manage-recurring-intervals"
  ],
  "artifacts": [
    {
      "type": "layout",
      "path": "evidence/age-layout-mobile.json",
      "caption": "age layout mobile",
      "findingIds": []
    },
    {
      "type": "dom",
      "path": "evidence/bbs-dom.json",
      "caption": "bbs dom",
      "findingIds": [
        "F013"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/bbs-mobile.png",
      "caption": "bbs mobile",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/cookies.json",
      "caption": "cookies",
      "findingIds": [
        "F010"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/discoverability-crawler.png",
      "caption": "discoverability crawler",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/discoverability-rendered.png",
      "caption": "discoverability rendered",
      "findingIds": []
    },
    {
      "type": "discoverability",
      "path": "evidence/discoverability.json",
      "caption": "discoverability",
      "findingIds": [
        "F008"
      ]
    },
    {
      "type": "other",
      "path": "evidence/guidance-list.json",
      "caption": "guidance list",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-retrieved-extra.md",
      "caption": "guidance retrieved extra",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-retrieved.md",
      "caption": "guidance retrieved",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-03a523d682.json",
      "caption": "guidance search 03a523d682",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-28346c701a.json",
      "caption": "guidance search 28346c701a",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-28387bbc6c.json",
      "caption": "guidance search 28387bbc6c",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-2b1e680519.json",
      "caption": "guidance search 2b1e680519",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-32b22781d1.json",
      "caption": "guidance search 32b22781d1",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-3a05915104.json",
      "caption": "guidance search 3a05915104",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-3d15e3fd7d.json",
      "caption": "guidance search 3d15e3fd7d",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-3e06581629.json",
      "caption": "guidance search 3e06581629",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-3eaefe1e3c.json",
      "caption": "guidance search 3eaefe1e3c",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-4e1a9381d9.json",
      "caption": "guidance search 4e1a9381d9",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-5415ffaccd.json",
      "caption": "guidance search 5415ffaccd",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-56c2d98f91.json",
      "caption": "guidance search 56c2d98f91",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-5f2ca06e3e.json",
      "caption": "guidance search 5f2ca06e3e",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-65b5a7b726.json",
      "caption": "guidance search 65b5a7b726",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-79f91f23c7.json",
      "caption": "guidance search 79f91f23c7",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-a708e52050.json",
      "caption": "guidance search a708e52050",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/guidance-search-f63a610a54.json",
      "caption": "guidance search f63a610a54",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/headers.json",
      "caption": "headers",
      "findingIds": [
        "F010"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/home-dark.png",
      "caption": "home dark",
      "findingIds": [
        "F001"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/home-desktop.png",
      "caption": "home desktop",
      "findingIds": [
        "F002",
        "F006"
      ]
    },
    {
      "type": "dom",
      "path": "evidence/home-dom.json",
      "caption": "home dom",
      "findingIds": [
        "F001",
        "F005",
        "F007",
        "F014"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/home-forced-colors.png",
      "caption": "home forced colors",
      "findingIds": []
    },
    {
      "type": "heap",
      "path": "evidence/home-heap.json",
      "caption": "home heap",
      "findingIds": []
    },
    {
      "type": "layout",
      "path": "evidence/home-layout-mobile.json",
      "caption": "home layout mobile",
      "findingIds": [
        "F003"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/home-mobile.png",
      "caption": "home mobile",
      "findingIds": [
        "F003"
      ]
    },
    {
      "type": "other",
      "path": "evidence/home-motion-probe.json",
      "caption": "home motion probe",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/home-probe.json",
      "caption": "home probe",
      "findingIds": [
        "F002",
        "F003",
        "F007",
        "F008",
        "F009"
      ]
    },
    {
      "type": "har-summary",
      "path": "evidence/home-summary.json",
      "caption": "home summary",
      "findingIds": [
        "F005",
        "F014"
      ]
    },
    {
      "type": "trace-summary",
      "path": "evidence/home-trace-summary.json",
      "caption": "home trace summary",
      "findingIds": [
        "F004"
      ]
    },
    {
      "type": "trace",
      "path": "evidence/home-trace.json",
      "caption": "home trace",
      "findingIds": [
        "F004"
      ]
    },
    {
      "type": "har",
      "path": "evidence/home.har",
      "caption": "home",
      "findingIds": [
        "F005"
      ]
    },
    {
      "type": "other",
      "path": "evidence/http-recon.txt",
      "caption": "http recon",
      "findingIds": [
        "F008",
        "F010"
      ]
    },
    {
      "type": "other",
      "path": "evidence/images.json",
      "caption": "images",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/lighthouse-summary.json",
      "caption": "lighthouse summary",
      "findingIds": [
        "F003",
        "F004",
        "F006",
        "F007"
      ]
    },
    {
      "type": "lighthouse",
      "path": "evidence/lighthouse.json",
      "caption": "lighthouse",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/noc-after-age-mobile.png",
      "caption": "noc after age mobile",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/noc-after-age-probe.json",
      "caption": "noc after age probe",
      "findingIds": []
    },
    {
      "type": "dom",
      "path": "evidence/noc-dom.json",
      "caption": "noc dom",
      "findingIds": [
        "F011",
        "F012",
        "F013"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/noc-mobile.png",
      "caption": "noc mobile",
      "findingIds": [
        "F003",
        "F011"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/not-found-mobile.png",
      "caption": "not found mobile",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/not-found-probe.json",
      "caption": "not found probe",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/publications-after-age-mobile.png",
      "caption": "publications after age mobile",
      "findingIds": []
    },
    {
      "type": "dom",
      "path": "evidence/publications-dom.json",
      "caption": "publications dom",
      "findingIds": [
        "F013"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/publications-mobile.png",
      "caption": "publications mobile",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/secrets.json",
      "caption": "secrets",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/trackers.json",
      "caption": "trackers",
      "findingIds": [
        "F012"
      ]
    }
  ],
  "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": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "The dark-mode screenshot is pixel-identical in size to the light screenshot, and the DOM reports color-scheme: normal with the body still rgb(241, 243, 245).",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-dark.png",
        "evidence/home-dom.json"
      ],
      "findingIds": [
        "F001"
      ]
    },
    {
      "principleId": "respect-user-preferences",
      "checkId": "respects-reduced-motion",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "evaluate under prefers-reduced-motion: reduce found zero active animations; there is no auto-advance.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-motion-probe.json"
      ]
    },
    {
      "principleId": "respect-user-preferences",
      "checkId": "respects-contrast",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "Forced-colors screenshot retains visible text, links and navigation; native focus outline remains present.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-forced-colors.png"
      ]
    },
    {
      "principleId": "implement-natural-interactions",
      "checkId": "view-transitions",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "The feature probe found no authored view-transition rules while the primary actions are full-page links to the three reading services.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-probe.json",
        "evidence/home-desktop.png"
      ],
      "findingIds": [
        "F002"
      ]
    },
    {
      "principleId": "implement-natural-interactions",
      "checkId": "scroll-driven-animations",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "Feature/CSS probe found no scroll-event animation or animation-timeline; the page uses ordinary browser scrolling without main-thread scroll effects.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-probe.json"
      ]
    },
    {
      "principleId": "implement-natural-interactions",
      "checkId": "physical-gestures",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "DOM and screenshot inspection found no custom pointer gestures, carousels, swipe handlers, or platform-fighting scroll behaviour.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-dom.json"
      ]
    },
    {
      "principleId": "provide-guided-navigation",
      "checkId": "scroll-state-aware-chrome",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "The short landing content has no sticky chrome that obscures content and needs scroll-state adaptation. Navigation remains stable from top to footer.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-desktop.png"
      ]
    },
    {
      "principleId": "provide-guided-navigation",
      "checkId": "anchored-positioning",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and representative-template DOM inspection for the feature or flow this check targets.",
      "evidence": "No tooltips, popovers, menus, or other anchored overlays exist on the representative templates.",
      "reason": "No tooltips, popovers, menus, or other anchored overlays exist on the representative templates."
    },
    {
      "principleId": "provide-guided-navigation",
      "checkId": "directs-attention",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "The page groups the three primary destinations in a prominent top navigation and repeats descriptive links in the content; the age gate separates under/over-18 actions clearly.",
      "pathIds": [
        "home",
        "age-gate",
        "not-found"
      ],
      "artifacts": [
        "evidence/home-desktop.png"
      ]
    },
    {
      "principleId": "maximize-content-reduce-noise",
      "checkId": "no-intrusive-interruptions",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "Initial landing screenshot contains no popup or obscuring banner; the legally relevant age decision appears only when entering restricted destinations.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-desktop.png"
      ]
    },
    {
      "principleId": "maximize-content-reduce-noise",
      "checkId": "semantic-dismissible-primitives",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and representative-template DOM inspection for the feature or flow this check targets.",
      "evidence": "The age confirmation is a dedicated document, not an in-page overlay; no transient rich controls are present.",
      "reason": "The age confirmation is a dedicated document, not an in-page overlay; no transient rich controls are present."
    },
    {
      "principleId": "maximize-content-reduce-noise",
      "checkId": "reduced-chrome",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "Desktop screenshot shows a content-first, sparse page with no advertising or decorative panels competing with the service descriptions.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-desktop.png"
      ]
    },
    {
      "principleId": "adapt-to-the-form-factor",
      "checkId": "responsive-no-horizontal-scroll",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "At 360x800 the landing screenshot renders a 1088px desktop canvas scaled to 0.331; its meta viewport is width=1088, maximum-scale=1.0. Lighthouse also fails meta-viewport on the mobile variant for user-scalable=no, and the age gate has no viewport meta.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-mobile.png",
        "evidence/home-layout-mobile.json",
        "evidence/home-probe.json",
        "evidence/lighthouse-summary.json",
        "evidence/noc-mobile.png"
      ],
      "findingIds": [
        "F003"
      ]
    },
    {
      "principleId": "adapt-to-the-form-factor",
      "checkId": "component-level-responsiveness",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and representative-template DOM inspection for the feature or flow this check targets.",
      "evidence": "The landing template has no component reused in independently sized containers; viewport responsiveness remains applicable and was judged separately.",
      "reason": "The landing template has no component reused in independently sized containers; viewport responsiveness remains applicable and was judged separately."
    },
    {
      "principleId": "adapt-to-the-form-factor",
      "checkId": "input-modality-aware",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "At 360x800 the landing screenshot renders a 1088px desktop canvas scaled to 0.331; its meta viewport is width=1088, maximum-scale=1.0. Lighthouse also fails meta-viewport on the mobile variant for user-scalable=no, and the age gate has no viewport meta.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-mobile.png",
        "evidence/home-layout-mobile.json",
        "evidence/home-probe.json",
        "evidence/lighthouse-summary.json",
        "evidence/noc-mobile.png"
      ],
      "findingIds": [
        "F003"
      ]
    },
    {
      "principleId": "support-core-task-success",
      "checkId": "clear-purpose-and-primary-action",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "The first content block explains the R18 service and provides three clearly named destinations with descriptions.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-desktop.png"
      ]
    },
    {
      "principleId": "support-core-task-success",
      "checkId": "primary-flow-completion",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "The age-gate Enter action was exercised and navigated to https://noc.syosetu.com/top/top/; the under-18 alternative is also explicit.",
      "pathIds": [
        "age-gate"
      ],
      "artifacts": [
        "evidence/noc-after-age-probe.json"
      ]
    },
    {
      "principleId": "support-core-task-success",
      "checkId": "clear-system-state-and-recovery",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "The age gate states the restriction and both next states; the tested 404 names the failure and offers contact and service links for recovery.",
      "pathIds": [
        "not-found"
      ],
      "artifacts": [
        "evidence/not-found-probe.json"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "good-core-web-vitals",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "Lighthouse measured FCP/LCP at 4.0s and Speed Index at 6.8s (performance 0.73); the independent trace measured LCP 4.89s. CLS and TBT were good.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/lighthouse-summary.json",
        "evidence/home-trace-summary.json",
        "evidence/home-trace.json"
      ],
      "findingIds": [
        "F004"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "visual-stability",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "Mobile layout observer measured CLS 0.0000039 and Lighthouse measured CLS 0.00013, both well inside the good range.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-layout-mobile.json"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "efficient-main-thread",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "Trace and layout evidence recorded zero long tasks and 0ms total blocking time.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-trace-summary.json"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "efficient-resource-delivery",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "HAR records 144KB of script in a 218KB load, led by parser-inserted jQuery UI 1.12.1 (84KB) and jQuery 1.12.4 (40KB), with eight confirmed parser-blocking CSS/script candidates and no async/defer attributes in the DOM.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-summary.json",
        "evidence/home.har",
        "evidence/home-dom.json"
      ],
      "findingIds": [
        "F005"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "trim-unused-and-duplicate-code",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "HAR records 144KB of script in a 218KB load, led by parser-inserted jQuery UI 1.12.1 (84KB) and jQuery 1.12.4 (40KB), with eight confirmed parser-blocking CSS/script candidates and no async/defer attributes in the DOM.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-summary.json",
        "evidence/home.har",
        "evidence/home-dom.json"
      ],
      "findingIds": [
        "F005"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "names-roles-labels",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "All interactive content on the landing page is native <a> with descriptive visible text; there are no images, form fields, canvas, or custom widgets requiring extra names.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-probe.json"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "sufficient-contrast",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "Lighthouse/axe measured white text on #ff922b at 2.23:1 for 14px text, below the required 4.5:1.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/lighthouse-summary.json",
        "evidence/home-desktop.png"
      ],
      "findingIds": [
        "F006"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "structure-and-focus",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "DOM inspection found no main element and no h1; Lighthouse independently failed landmark-one-main. Keyboard focus itself had a visible auto outline.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-dom.json",
        "evidence/home-probe.json",
        "evidence/lighthouse-summary.json"
      ],
      "findingIds": [
        "F007"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "legible-text",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "At 360x800 the landing screenshot renders a 1088px desktop canvas scaled to 0.331; its meta viewport is width=1088, maximum-scale=1.0. Lighthouse also fails meta-viewport on the mobile variant for user-scalable=no, and the age gate has no viewport meta.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-mobile.png",
        "evidence/home-layout-mobile.json",
        "evidence/home-probe.json",
        "evidence/lighthouse-summary.json",
        "evidence/noc-mobile.png"
      ],
      "findingIds": [
        "F003"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "zoom-reflow-targets-and-media",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "At 360x800 the landing screenshot renders a 1088px desktop canvas scaled to 0.331; its meta viewport is width=1088, maximum-scale=1.0. Lighthouse also fails meta-viewport on the mobile variant for user-scalable=no, and the age gate has no viewport meta.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-mobile.png",
        "evidence/home-layout-mobile.json",
        "evidence/home-probe.json",
        "evidence/lighthouse-summary.json",
        "evidence/noc-mobile.png"
      ],
      "findingIds": [
        "F003"
      ]
    },
    {
      "principleId": "follow-best-practices",
      "checkId": "no-console-errors",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "Lighthouse best-practices scored 1.0 and reported no console-error or uncaught-exception failure.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/lighthouse-summary.json"
      ]
    },
    {
      "principleId": "follow-best-practices",
      "checkId": "sound-document-and-assets",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "DOM inspection confirms HTML doctype and UTF-8 charset; the page contains no <img> elements with sizing/aspect-ratio risk.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-probe.json"
      ]
    },
    {
      "principleId": "follow-best-practices",
      "checkId": "browser-platform-hygiene",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "DOM source loads jQuery 1.12.4 and jQuery UI 1.12.1 synchronously; these legacy branches are unnecessary for the observed static landing experience.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-dom.json",
        "evidence/home-summary.json"
      ],
      "findingIds": [
        "F014"
      ]
    },
    {
      "principleId": "be-discoverable",
      "checkId": "title-and-description",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "DOM capture of representative publication, forum and reading destinations consistently landed on the age template; its head contains <title>年齢確認</title> but no meta description.",
      "pathIds": [
        "age-gate"
      ],
      "artifacts": [
        "evidence/noc-dom.json",
        "evidence/publications-dom.json",
        "evidence/bbs-dom.json"
      ],
      "findingIds": [
        "F013"
      ]
    },
    {
      "principleId": "be-discoverable",
      "checkId": "crawlable-and-mobile-friendly",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "All landing links have real HTTPS hrefs and descriptive Japanese text; robots.txt allows general crawling. Mobile usability defects are separately recorded under form factor.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-probe.json"
      ]
    },
    {
      "principleId": "be-discoverable",
      "checkId": "canonical-and-indexing-signals",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "The requested host 302s to nl.syosetu.com, but the final page has no canonical link; /sitemap.xml returns 404. robots.txt is available and does not generally block indexing.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-probe.json",
        "evidence/http-recon.txt",
        "evidence/discoverability.json"
      ],
      "findingIds": [
        "F008"
      ]
    },
    {
      "principleId": "be-discoverable",
      "checkId": "structured-and-shareable-metadata",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "The metadata probe found zero Open Graph properties and zero JSON-LD blocks despite the page describing the three R18 services and their operator.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-probe.json"
      ],
      "findingIds": [
        "F009"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "checkId": "secure-transport-and-headers",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "The final response exposes X-Frame-Options: sameorigin, but no CSP, HSTS, X-Content-Type-Options, Referrer-Policy, or Permissions-Policy. Cookies are Secure, but both are reported SameSite=None and the year-long ks2 cookie is script-readable.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/headers.json",
        "evidence/cookies.json",
        "evidence/http-recon.txt"
      ],
      "findingIds": [
        "F010"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "checkId": "data-minimisation-and-third-parties",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "The age-gate DOM includes an async googletagmanager.com gtag script and immediately runs gtag config, while the home tracker capture otherwise found no known tracker.",
      "pathIds": [
        "age-gate"
      ],
      "artifacts": [
        "evidence/noc-dom.json",
        "evidence/trackers.json"
      ],
      "findingIds": [
        "F012"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "checkId": "in-context-permissions-and-modern-auth",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "No permission prompt or permissions API use occurred on load; authentication is not embedded in this gateway and is only linked to a separate service.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-probe.json"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "checkId": "defensive-browser-policies",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "The final response exposes X-Frame-Options: sameorigin, but no CSP, HSTS, X-Content-Type-Options, Referrer-Policy, or Permissions-Policy. Cookies are Secure, but both are reported SameSite=None and the year-long ks2 cookie is script-readable.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/headers.json",
        "evidence/cookies.json",
        "evidence/http-recon.txt"
      ],
      "findingIds": [
        "F010"
      ]
    },
    {
      "principleId": "be-resilient",
      "checkId": "progressive-enhancement",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "The age page explicitly says JavaScript and cookies are required; its “Enter” action is href=\"javascript:void(0)\" with the destination only in data-url. A non-JS crawler therefore cannot follow the adult confirmation path.",
      "pathIds": [
        "age-gate"
      ],
      "artifacts": [
        "evidence/noc-dom.json",
        "evidence/noc-mobile.png"
      ],
      "findingIds": [
        "F011"
      ]
    },
    {
      "principleId": "be-resilient",
      "checkId": "resilient-runtime-behaviour",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "The simple MPA uses native links and dedicated documents, with no clipped overlay, fragile async shell, or DOM-move state. The tested age decision navigated successfully.",
      "pathIds": [
        "age-gate"
      ],
      "artifacts": [
        "evidence/noc-after-age-probe.json"
      ]
    },
    {
      "principleId": "be-resilient",
      "checkId": "offline-and-installable",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and representative-template DOM inspection for the feature or flow this check targets.",
      "evidence": "This public content gateway is not an app-like installable product; offline installability is not necessary for its core purpose.",
      "reason": "This public content gateway is not an app-like installable product; offline installability is not necessary for its core purpose."
    },
    {
      "principleId": "be-resilient",
      "checkId": "network-and-http-failure-states",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "A deliberately invalid path renders an explicit error, explains the missing URL, and provides contact and service links rather than a blank shell.",
      "pathIds": [
        "not-found"
      ],
      "artifacts": [
        "evidence/not-found-probe.json"
      ]
    },
    {
      "principleId": "be-internationalised",
      "checkId": "lang-dir-and-logical-properties",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "The server-rendered document declares html lang=\"ja\" and presents a coherent Japanese reading order; no bidi content is present.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-probe.json"
      ]
    },
    {
      "principleId": "be-internationalised",
      "checkId": "locale-aware-data",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and representative-template DOM inspection for the feature or flow this check targets.",
      "evidence": "The deliberately Japanese-only landing and age gate render no dates, numbers, currencies, durations, or calendars requiring locale formatting.",
      "reason": "The deliberately Japanese-only landing and age gate render no dates, numbers, currencies, durations, or calendars requiring locale formatting."
    },
    {
      "principleId": "be-internationalised",
      "checkId": "time-zone-correctness",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and representative-template DOM inspection for the feature or flow this check targets.",
      "evidence": "The audited templates contain no events, schedules, or stored time concepts.",
      "reason": "The audited templates contain no events, schedules, or stored time concepts."
    },
    {
      "principleId": "be-trustworthy",
      "checkId": "no-dark-patterns",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "The age decision plainly describes the restriction, gives equal under-18 and over-18 choices, and makes no commercial promise, forced continuity, or confirmshaming claim.",
      "pathIds": [
        "age-gate"
      ],
      "artifacts": [
        "evidence/noc-mobile.png"
      ]
    },
    {
      "principleId": "be-trustworthy",
      "checkId": "humane-error-handling",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and representative-template DOM inspection for the feature or flow this check targets.",
      "evidence": "No user-input form is present in the audited public gateway or age-decision flow.",
      "reason": "No user-input form is present in the audited public gateway or age-decision flow."
    },
    {
      "principleId": "be-trustworthy",
      "checkId": "trustworthy-input-assistance",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and representative-template DOM inspection for the feature or flow this check targets.",
      "evidence": "No text, address, payment, sign-in, or signup inputs are present on the audited templates.",
      "reason": "No text, address, payment, sign-in, or signup inputs are present on the audited templates."
    },
    {
      "principleId": "be-trustworthy",
      "checkId": "safe-commercial-and-account-flows",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and representative-template DOM inspection for the feature or flow this check targets.",
      "evidence": "No checkout, subscription, authentication form, or account-management flow is hosted by the audited gateway; login links leave scope.",
      "reason": "No checkout, subscription, authentication form, or account-management flow is hosted by the audited gateway; login links leave scope."
    },
    {
      "principleId": "be-sustainable",
      "checkId": "optimised-assets",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "Images primitive found zero content images, so there are no oversized, legacy-format, or missing-responsive-source image transfers on the landing page.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/images.json"
      ]
    },
    {
      "principleId": "be-sustainable",
      "checkId": "no-wasteful-work",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "HAR records 144KB of script in a 218KB load, led by parser-inserted jQuery UI 1.12.1 (84KB) and jQuery 1.12.4 (40KB), with eight confirmed parser-blocking CSS/script candidates and no async/defer attributes in the DOM.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-summary.json",
        "evidence/home.har",
        "evidence/home-dom.json"
      ],
      "findingIds": [
        "F005"
      ]
    },
    {
      "principleId": "be-sustainable",
      "checkId": "third-party-and-media-budget",
      "status": "issues",
      "confidence": "high",
      "method": "Direct visual, DOM, network, performance, or Lighthouse evidence as cited.",
      "evidence": "HAR records 144KB of script in a 218KB load, led by parser-inserted jQuery UI 1.12.1 (84KB) and jQuery 1.12.4 (40KB), with eight confirmed parser-blocking CSS/script candidates and no async/defer attributes in the DOM.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-summary.json",
        "evidence/home.har",
        "evidence/home-dom.json"
      ],
      "findingIds": [
        "F005"
      ]
    },
    {
      "principleId": "be-agent-ready",
      "checkId": "structured-agent-capabilities",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and representative-template DOM inspection for the feature or flow this check targets.",
      "evidence": "The gateway exposes no transactional capability for an agent; its server-rendered links and text are already machine-readable.",
      "reason": "The gateway exposes no transactional capability for an agent; its server-rendered links and text are already machine-readable."
    },
    {
      "principleId": "be-agent-ready",
      "checkId": "on-device-inference",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and representative-template DOM inspection for the feature or flow this check targets.",
      "evidence": "No summarisation or generative interaction is part of this small navigational gateway, so on-device inference would add no clear user value.",
      "reason": "No summarisation or generative interaction is part of this small navigational gateway, so on-device inference would add no clear user value."
    },
    {
      "principleId": "be-memory-efficient",
      "checkId": "no-leak-under-repeated-interaction",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and representative-template DOM inspection for the feature or flow this check targets.",
      "evidence": "The landing page is a one-shot MPA document with no representative open/close, route, or feed interaction to repeat without fabricating a test.",
      "reason": "The landing page is a one-shot MPA document with no representative open/close, route, or feed interaction to repeat without fabricating a test."
    },
    {
      "principleId": "be-memory-efficient",
      "checkId": "bounded-footprint",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "Heap summary reports 68,864 nodes and 3.09MB total self size, proportionate for this small MPA page.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-heap.json"
      ]
    },
    {
      "principleId": "be-memory-efficient",
      "checkId": "no-detached-dom-or-unbounded-listeners",
      "status": "pass",
      "confidence": "high",
      "method": "Direct evidence inspection under the cited condition.",
      "evidence": "The single-state heap summary shows no Detached* constructor among the largest populations; the static page has no repeatable dynamic lifecycle or timer-driven UI.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-heap.json"
      ]
    }
  ],
  "principleOutcomes": [
    {
      "principleId": "respect-user-preferences",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F001"
      ]
    },
    {
      "principleId": "implement-natural-interactions",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F002"
      ]
    },
    {
      "principleId": "provide-guided-navigation",
      "expectation": "default",
      "status": "pass"
    },
    {
      "principleId": "maximize-content-reduce-noise",
      "expectation": "default",
      "status": "pass"
    },
    {
      "principleId": "adapt-to-the-form-factor",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F003"
      ]
    },
    {
      "principleId": "support-core-task-success",
      "expectation": "default",
      "status": "pass"
    },
    {
      "principleId": "be-fast-and-stable",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F004",
        "F005"
      ]
    },
    {
      "principleId": "be-inclusive",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F006",
        "F007",
        "F003"
      ]
    },
    {
      "principleId": "follow-best-practices",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F014"
      ]
    },
    {
      "principleId": "be-discoverable",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F013",
        "F008",
        "F009"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F010",
        "F012"
      ]
    },
    {
      "principleId": "be-resilient",
      "expectation": "contextual",
      "status": "issues",
      "findingIds": [
        "F011"
      ]
    },
    {
      "principleId": "be-internationalised",
      "expectation": "contextual",
      "status": "pass"
    },
    {
      "principleId": "be-trustworthy",
      "expectation": "default",
      "status": "pass"
    },
    {
      "principleId": "be-sustainable",
      "expectation": "contextual",
      "status": "issues",
      "findingIds": [
        "F005"
      ]
    },
    {
      "principleId": "be-agent-ready",
      "expectation": "contextual",
      "status": "not-applicable",
      "reason": "The gateway exposes no transactional capability for an agent; its server-rendered links and text are already machine-readable. No summarisation or generative interaction is part of this small navigational gateway, so on-device inference would add no clear user value."
    },
    {
      "principleId": "be-memory-efficient",
      "expectation": "default",
      "status": "pass"
    }
  ],
  "paths": [
    {
      "id": "home",
      "description": "Public R18 group gateway and primary choice of reading service; covers the landing template, navigation, preferences, mobile rendering, metadata, performance and security.",
      "url": "https://novel18.syosetu.com",
      "conditions": [
        "desktop 1440x900",
        "mobile 360x800",
        "prefers-color-scheme: dark",
        "prefers-reduced-motion: reduce",
        "forced-colors: active",
        "JavaScript-disabled crawler"
      ],
      "result": "issues"
    },
    {
      "id": "age-gate",
      "description": "Mandatory age-confirmation journey reached from publication, forum and Nocturne destinations; represents the shared restricted-content gate and primary flow.",
      "url": "https://nl.syosetu.com/redirect/ageauth/",
      "conditions": [
        "mobile 360x800",
        "keyboard/native-link inspection",
        "JavaScript interaction"
      ],
      "result": "issues"
    },
    {
      "id": "not-found",
      "description": "Invalid URL used to inspect HTTP/navigation failure messaging and recovery options.",
      "url": "https://novel18.syosetu.com/not-a-real-page",
      "conditions": [
        "mobile 360x800"
      ],
      "result": "pass"
    }
  ],
  "findings": [
    {
      "id": "F001",
      "pathId": "home",
      "url": "https://nl.syosetu.com/",
      "principleId": "respect-user-preferences",
      "principleCheckId": "respects-color-scheme",
      "guidanceId": "dark-mode",
      "guidanceCategory": "user-experience",
      "severity": "medium",
      "confidence": "high",
      "summary": "The landing page ignores the user’s dark colour-scheme preference.",
      "evidence": "The dark-mode screenshot is pixel-identical in size to the light screenshot, and the DOM reports color-scheme: normal with the body still rgb(241, 243, 245).",
      "artifacts": [
        "evidence/home-dark.png",
        "evidence/home-dom.json"
      ],
      "suggestedFix": "Declare color-scheme: light dark and define preference-driven surface, text, link, and control colours using prefers-color-scheme or light-dark().",
      "effort": "small"
    },
    {
      "id": "F002",
      "pathId": "home",
      "url": "https://nl.syosetu.com/",
      "principleId": "implement-natural-interactions",
      "principleCheckId": "view-transitions",
      "guidanceId": "cross-document-transitions",
      "guidanceCategory": "user-experience",
      "severity": "low",
      "confidence": "high",
      "summary": "Cross-document navigation swaps abruptly with no View Transition treatment.",
      "evidence": "The feature probe found no authored view-transition rules while the primary actions are full-page links to the three reading services.",
      "artifacts": [
        "evidence/home-probe.json",
        "evidence/home-desktop.png"
      ],
      "suggestedFix": "Add @view-transition { navigation: auto } and stable view-transition-name values for persistent navigation, with reduced-motion-safe styling.",
      "effort": "small"
    },
    {
      "id": "F003",
      "pathId": "home",
      "url": "https://nl.syosetu.com/",
      "principleId": "adapt-to-the-form-factor",
      "principleCheckId": "responsive-no-horizontal-scroll",
      "guidanceId": "fluid-scaling",
      "guidanceCategory": "css",
      "severity": "high",
      "confidence": "high",
      "summary": "Mobile rendering uses desktop-width or zoom-restricting viewport policies, leaving important text and targets too small.",
      "evidence": "At 360x800 the landing screenshot renders a 1088px desktop canvas scaled to 0.331; its meta viewport is width=1088, maximum-scale=1.0. Lighthouse also fails meta-viewport on the mobile variant for user-scalable=no, and the age gate has no viewport meta.",
      "artifacts": [
        "evidence/home-mobile.png",
        "evidence/home-layout-mobile.json",
        "evidence/home-probe.json",
        "evidence/lighthouse-summary.json",
        "evidence/noc-mobile.png"
      ],
      "suggestedFix": "Use width=device-width, initial-scale=1 without maximum-scale/user-scalable restrictions; replace fixed widths with fluid intrinsic layouts and keep controls at least 44 CSS px.",
      "effort": "medium"
    },
    {
      "id": "F004",
      "pathId": "home",
      "url": "https://nl.syosetu.com/",
      "principleId": "be-fast-and-stable",
      "principleCheckId": "good-core-web-vitals",
      "guidanceId": "performance",
      "guidanceCategory": "performance",
      "severity": "high",
      "confidence": "high",
      "summary": "The simple text landing page paints too slowly.",
      "evidence": "Lighthouse measured FCP/LCP at 4.0s and Speed Index at 6.8s (performance 0.73); the independent trace measured LCP 4.89s. CLS and TBT were good.",
      "artifacts": [
        "evidence/lighthouse-summary.json",
        "evidence/home-trace-summary.json",
        "evidence/home-trace.json"
      ],
      "suggestedFix": "Reduce TTFB and render delay, inline or prioritise the small critical stylesheet, and defer non-critical scripts so text can paint immediately.",
      "effort": "medium"
    },
    {
      "id": "F005",
      "pathId": "home",
      "url": "https://nl.syosetu.com/",
      "principleId": "be-fast-and-stable",
      "principleCheckId": "efficient-resource-delivery",
      "guidanceId": "identify-heavy-scripts",
      "guidanceCategory": "performance",
      "severity": "medium",
      "confidence": "high",
      "summary": "Parser-blocking legacy libraries dominate a page that has almost no interaction.",
      "evidence": "HAR records 144KB of script in a 218KB load, led by parser-inserted jQuery UI 1.12.1 (84KB) and jQuery 1.12.4 (40KB), with eight confirmed parser-blocking CSS/script candidates and no async/defer attributes in the DOM.",
      "artifacts": [
        "evidence/home-summary.json",
        "evidence/home.har",
        "evidence/home-dom.json"
      ],
      "suggestedFix": "Remove jQuery UI and unused global bundles from this static landing template; replace the remaining behaviour with small native modules loaded with defer.",
      "effort": "medium"
    },
    {
      "id": "F006",
      "pathId": "home",
      "url": "https://nl.syosetu.com/",
      "principleId": "be-inclusive",
      "principleCheckId": "sufficient-contrast",
      "guidanceId": "accessibility",
      "guidanceCategory": "accessibility",
      "severity": "medium",
      "confidence": "high",
      "summary": "The user-registration control does not meet minimum text contrast.",
      "evidence": "Lighthouse/axe measured white text on #ff922b at 2.23:1 for 14px text, below the required 4.5:1.",
      "artifacts": [
        "evidence/lighthouse-summary.json",
        "evidence/home-desktop.png"
      ],
      "suggestedFix": "Darken the orange control background or use dark text until normal-size text reaches at least 4.5:1 in every state.",
      "effort": "trivial"
    },
    {
      "id": "F007",
      "pathId": "home",
      "url": "https://nl.syosetu.com/",
      "principleId": "be-inclusive",
      "principleCheckId": "structure-and-focus",
      "guidanceId": "accessibility",
      "guidanceCategory": "accessibility",
      "severity": "medium",
      "confidence": "high",
      "summary": "The document lacks a main landmark and starts its content hierarchy at h2.",
      "evidence": "DOM inspection found no main element and no h1; Lighthouse independently failed landmark-one-main. Keyboard focus itself had a visible auto outline.",
      "artifacts": [
        "evidence/home-dom.json",
        "evidence/home-probe.json",
        "evidence/lighthouse-summary.json"
      ],
      "suggestedFix": "Wrap the unique page content in <main> and make its page title an <h1>, preserving the visible focus treatment and logical source order.",
      "effort": "trivial"
    },
    {
      "id": "F008",
      "pathId": "home",
      "url": "https://nl.syosetu.com/",
      "principleId": "be-discoverable",
      "principleCheckId": "canonical-and-indexing-signals",
      "guidanceId": "html",
      "guidanceCategory": "html",
      "severity": "medium",
      "confidence": "high",
      "summary": "Canonical and sitemap signals do not consistently describe the public URL set.",
      "evidence": "The requested host 302s to nl.syosetu.com, but the final page has no canonical link; /sitemap.xml returns 404. robots.txt is available and does not generally block indexing.",
      "artifacts": [
        "evidence/home-probe.json",
        "evidence/http-recon.txt",
        "evidence/discoverability.json"
      ],
      "suggestedFix": "Publish a canonical URL on each public template and expose a sitemap containing canonical URLs, then reference it from robots.txt.",
      "effort": "small"
    },
    {
      "id": "F009",
      "pathId": "home",
      "url": "https://nl.syosetu.com/",
      "principleId": "be-discoverable",
      "principleCheckId": "structured-and-shareable-metadata",
      "guidanceId": "html",
      "guidanceCategory": "html",
      "severity": "low",
      "confidence": "high",
      "summary": "The public landing page has no social preview or structured entity metadata.",
      "evidence": "The metadata probe found zero Open Graph properties and zero JSON-LD blocks despite the page describing the three R18 services and their operator.",
      "artifacts": [
        "evidence/home-probe.json"
      ],
      "suggestedFix": "Add accurate og:title, og:description, og:url and preview image metadata, plus Organization/WebSite JSON-LD matching visible content.",
      "effort": "small"
    },
    {
      "id": "F010",
      "pathId": "home",
      "url": "https://nl.syosetu.com/",
      "principleId": "be-private-and-secure",
      "principleCheckId": "secure-transport-and-headers",
      "guidanceId": "security",
      "guidanceCategory": "security",
      "severity": "high",
      "confidence": "high",
      "summary": "HTTPS is used, but key browser-enforced security headers and conservative cookie attributes are missing.",
      "evidence": "The final response exposes X-Frame-Options: sameorigin, but no CSP, HSTS, X-Content-Type-Options, Referrer-Policy, or Permissions-Policy. Cookies are Secure, but both are reported SameSite=None and the year-long ks2 cookie is script-readable.",
      "artifacts": [
        "evidence/headers.json",
        "evidence/cookies.json",
        "evidence/http-recon.txt"
      ],
      "suggestedFix": "Add HSTS, a nonce/hash-based CSP, nosniff, Referrer-Policy and Permissions-Policy; use Lax/Strict and HttpOnly wherever cross-site or script access is not required.",
      "effort": "medium"
    },
    {
      "id": "F011",
      "pathId": "age-gate",
      "url": "https://nl.syosetu.com/redirect/ageauth/",
      "principleId": "be-resilient",
      "principleCheckId": "progressive-enhancement",
      "guidanceId": "html",
      "guidanceCategory": "html",
      "severity": "high",
      "confidence": "high",
      "summary": "The required age-confirmation journey depends on JavaScript and cookies instead of a real navigable action.",
      "evidence": "The age page explicitly says JavaScript and cookies are required; its “Enter” action is href=\"javascript:void(0)\" with the destination only in data-url. A non-JS crawler therefore cannot follow the adult confirmation path.",
      "artifacts": [
        "evidence/noc-dom.json",
        "evidence/noc-mobile.png"
      ],
      "suggestedFix": "Use a real form or href destination handled server-side, with JavaScript only enhancing the transition; preserve the age decision using a progressively enhanced cookie/session.",
      "effort": "medium"
    },
    {
      "id": "F012",
      "pathId": "age-gate",
      "url": "https://nl.syosetu.com/redirect/ageauth/",
      "principleId": "be-private-and-secure",
      "principleCheckId": "data-minimisation-and-third-parties",
      "guidanceId": "privacy",
      "guidanceCategory": "privacy",
      "severity": "medium",
      "confidence": "high",
      "summary": "Google Analytics loads on the mandatory age-confirmation screen before the user chooses a path.",
      "evidence": "The age-gate DOM includes an async googletagmanager.com gtag script and immediately runs gtag config, while the home tracker capture otherwise found no known tracker.",
      "artifacts": [
        "evidence/noc-dom.json",
        "evidence/trackers.json"
      ],
      "suggestedFix": "Do not load analytics on the mandatory gate by default; if measurement is necessary, minimise it, respect consent and privacy signals, and defer/batch it after an informed action.",
      "effort": "small"
    },
    {
      "id": "F013",
      "pathId": "age-gate",
      "url": "https://nl.syosetu.com/redirect/ageauth/",
      "principleId": "be-discoverable",
      "principleCheckId": "title-and-description",
      "guidanceId": "html",
      "guidanceCategory": "html",
      "severity": "low",
      "confidence": "high",
      "summary": "The age-confirmation template has a title but no meta description.",
      "evidence": "DOM capture of representative publication, forum and reading destinations consistently landed on the age template; its head contains <title>年齢確認</title> but no meta description.",
      "artifacts": [
        "evidence/noc-dom.json",
        "evidence/publications-dom.json",
        "evidence/bbs-dom.json"
      ],
      "suggestedFix": "Add a concise, page-specific meta description explaining the age decision and destination context.",
      "effort": "trivial"
    },
    {
      "id": "F014",
      "pathId": "home",
      "url": "https://nl.syosetu.com/",
      "principleId": "follow-best-practices",
      "principleCheckId": "browser-platform-hygiene",
      "guidanceId": "html",
      "guidanceCategory": "html",
      "severity": "medium",
      "confidence": "high",
      "summary": "The landing template ships obsolete jQuery and jQuery UI releases.",
      "evidence": "DOM source loads jQuery 1.12.4 and jQuery UI 1.12.1 synchronously; these legacy branches are unnecessary for the observed static landing experience.",
      "artifacts": [
        "evidence/home-dom.json",
        "evidence/home-summary.json"
      ],
      "suggestedFix": "Remove the legacy dependencies from this template and use current platform APIs; if a library remains necessary, update it and continuously scan dependency advisories.",
      "effort": "medium"
    }
  ],
  "taskList": [
    {
      "id": "T001",
      "title": "Make every template fluid, zoomable and touch-readable",
      "priority": 1,
      "findingIds": [
        "F003"
      ],
      "guidanceId": "fluid-scaling",
      "status": "open"
    },
    {
      "id": "T002",
      "title": "Restore progressive enhancement to the age-confirmation flow",
      "priority": 2,
      "findingIds": [
        "F011"
      ],
      "guidanceId": "html",
      "status": "open"
    },
    {
      "id": "T003",
      "title": "Add a modern response-header and cookie baseline",
      "priority": 3,
      "findingIds": [
        "F010"
      ],
      "guidanceId": "security",
      "status": "open"
    },
    {
      "id": "T004",
      "title": "Remove parser-blocking legacy libraries and speed first paint",
      "priority": 4,
      "findingIds": [
        "F004",
        "F005",
        "F014"
      ],
      "guidanceId": "identify-heavy-scripts",
      "status": "open"
    },
    {
      "id": "T005",
      "title": "Fix contrast and document landmarks",
      "priority": 5,
      "findingIds": [
        "F006",
        "F007"
      ],
      "guidanceId": "accessibility",
      "status": "open"
    },
    {
      "id": "T006",
      "title": "Minimise age-gate analytics",
      "priority": 6,
      "findingIds": [
        "F012"
      ],
      "guidanceId": "privacy",
      "status": "open"
    },
    {
      "id": "T007",
      "title": "Complete canonical, sitemap, social and age-page metadata",
      "priority": 7,
      "findingIds": [
        "F008",
        "F009",
        "F013"
      ],
      "guidanceId": "html",
      "status": "open"
    },
    {
      "id": "T008",
      "title": "Respect dark mode and add reduced-motion-safe page transitions",
      "priority": 8,
      "findingIds": [
        "F001",
        "F002"
      ],
      "guidanceId": "dark-mode",
      "status": "open"
    }
  ],
  "budget": {
    "pathCount": 3,
    "auditPasses": 1
  },
  "agent": "pi",
  "runId": "2026-07-24T04-27-29-092Z"
}
