{ "url": "https://search.yahoo.co.jp", "auditedAt": "2026-07-24T02:18:09.111Z", "mode": "report", "status": "completed", "statusDetail": "Complete atomic audit of the HTTP 403 regional restriction page delivered to this audit environment. The underlying Yahoo search experience was not reachable from this region; all verdicts apply to the delivered restriction surface, not the Japan-region search application.", "page": { "appType": "mpa", "framework": "static server-rendered HTML", "notes": "The target consistently delivered a bilingual EEA/UK unavailability notice with HTTP 403. It is a single static page with no JavaScript, forms, internal routes, manifest, or service worker." }, "evidenceUsed": [ "screenshot", "dom", "evaluate-probe", "layout-metrics", "discoverability", "trace", "har", "headers", "cookies", "trackers", "images", "secrets", "heap-summary", "axe-core", "lighthouse-attempt", "modern-web-guidance" ], "guidanceConsulted": [ "dark-mode", "component-specific-light-dark-theme", "accessibility", "adapt-scrollbar-to-contrast-preferences", "same-document-transitions", "cross-document-transitions", "group-element-transitions", "faster-spa-view-transitions", "scrollytelling", "parallax-scroll-effects", "scroll-entry-exit-effects", "carousel-slide-effects", "physics-based-easing", "individual-transform-properties", "animate-element-entry-exit", "animate-to-from-top-layer", "animate-to-intrinsic-sizes", "dynamic-sibling-animations", "interactive-content-reveal", "pull-to-reveal", "swipe-to-remove", "shrinking-header-on-scroll", "scroll-progress-indicator", "scroll-position-aware-elements", "scroll-snap-realtime-feedback", "scroll-snap-state-sync", "scroll-target-on-load", "soft-edge-content-fade", "scrollability-affordance-hints", "anchor-positioning-tab-underline", "position-aware-tooltips", "interest-triggered-tooltips", "interest-triggered-action-previews", "directional-navigation-transitions", "carousel-snap-highlights", "navigation-drawer", "stack-drill-down", "persistent-app-tours", "persistent-toast-notifications", "light-dismiss-a-dialog", "platform-controls-dismiss-dialog", "declarative-dialog-popover-control", "animated-select-picker", "branded-select-styling", "brand-consistent-forms", "custom-select-picker-layouts", "rich-media-picker", "complex-shapes", "shaped-cutouts", "overflow-clipping-control", "visually-texture-content", "apply-webgl-shaders", "interactive-content-in-3d-scenes", "highlight-text-ranges", "prevent-text-wrapping", "customize-scrollbar-color-and-thickness", "export-html-media-from-canvas", "fluid-scaling", "calculate-with-intrinsic-sizes", "css-layout", "size-aware-styling", "content-based-styling", "child-state-based-styling", "design-token-reactivity", "dynamic-sibling-styling", "form-fields-automatically-fit-contents", "improve-text-layout-and-legibility", "forms", "accessible-error-announcement", "required-field-feedback", "validate-input-after-interaction", "identify-inp-causes", "schedule-tasks-by-priority", "optimize-preload-priority", "improve-next-page-load-performance", "interactions-in-complex-layouts", "performance", "visually-stable-font-fallbacks", "break-up-long-tasks", "identify-heavy-scripts", "optimize-script-priority", "defer-rendering-heavy-content", "defer-work-until-scroll-ends", "optimize-image-priority", "conditional-async-dependencies", "expose-canvas-content-to-browser-features", "move-dom-element-without-losing-state", "precise-text-alignment", "visually-stable-mixed-fonts", "css", "html", "reduce-style-repetition", "security", "privacy", "batch-analytics-events", "full-session-analytics", "calculate-total-foreground-time", "passkeys", "passkey-registration", "passkey-authentication", "passkey-reauthentication", "passkey-conditional-create", "passkey-management", "flicker-free-client-side-ab-testing", "consistent-cross-document-transitions", "stabilize-reactive-state", "resilient-context-menus-and-nested-dropdowns", "persistent-top-layer-ui", "detect-initial-visibility-state", "sequence-distributed-events", "translator", "language-detection", "support-global-calendar-systems", "capture-location-agnostic-data", "format-human-readable-durations", "manage-recurring-intervals", "calculate-event-differentials", "coordinate-global-events", "model-partial-time-concepts", "search-hidden-content", "select-menu-interaction", "style-parent-with-has", "autofill-address-form", "autofill-payment-form", "autofill-sign-in-form", "autofill-sign-up-form", "autofill-highlight-inputs", "deliver-optimized-decorative-images", "resolution-optimized-pseudo-elements", "deprioritize-background-fetches", "efficient-background-processing", "webmcp", "agentic-forms", "agentic-javascript-tools", "language-model", "summarizer" ], "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 }, "paths": [ { "id": "regional-notice", "description": "The only reachable archetype: the server-rendered EEA/UK availability restriction notice, tested as the landing state, narrow/mobile reflow, preference variants, no-JavaScript crawler view, and error-route behavior. Navigation discovery found only outgoing service/help links; the Japan-region search form/results and separate destination hosts were not covered because the target returns HTTP 403 from this environment.", "url": "https://search.yahoo.co.jp/", "conditions": [ "desktop load", "viewport: 360x800", "prefers-color-scheme: dark", "prefers-contrast: more", "prefers-reduced-motion: reduce", "JavaScript disabled/raw crawler", "keyboard focus", "HTTP error routes" ], "result": "issues" } ], "findings": [ { "id": "F001", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "The page ignores the user’s dark color-scheme preference.", "evidence": "The dark screenshot is pixel-equivalent to the light capture; the dark-mode probe reports html background rgb(255,255,255), color-scheme normal, and no color-scheme CSS signal.", "suggestedFix": "Declare color-scheme: light dark and provide preference-driven dark surface, text, link, border, and logo treatments.", "artifacts": [ "evidence/home-dark.png", "evidence/dark-probe.json", "evidence/platform-probe.json" ], "effort": "medium" }, { "id": "F002", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "respect-user-preferences", "principleCheckId": "respects-contrast", "guidanceId": "adapt-scrollbar-to-contrast-preferences", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "The page has no high-contrast adaptation and some essential links remain below WCAG contrast minimums.", "evidence": "The platform probe finds no prefers-contrast or forced-colors CSS; axe reports link contrast ratios of 4.04–4.17:1 where 4.5:1 is required.", "suggestedFix": "Add forced-colors and prefers-contrast treatments that preserve visible text, links, focus, and boundaries; avoid overriding system colors where forced colors are active.", "artifacts": [ "evidence/home-high-contrast.png", "evidence/platform-probe.json", "evidence/axe.json" ], "effort": "small" }, { "id": "F003", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Many mobile link targets are substantially shorter than the recommended touch target.", "evidence": "At 360px, the target-size probe measures several primary links at 16–21px tall and footer links at 14px tall; keyboard focus itself remains visible.", "suggestedFix": "Increase interactive target boxes to at least 24 by 24 CSS pixels, preferably about 44 by 44 for primary touch actions, using padding without reducing text spacing.", "artifacts": [ "evidence/target-sizes.json", "evidence/home-mobile.png" ], "effort": "small" }, { "id": "F004", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "performance", "guidanceCategory": "performance", "severity": "low", "confidence": "medium", "summary": "Observed LCP narrowly misses the good threshold in this test.", "evidence": "The trace summary reports LCP 2549.39ms, about 49ms beyond the 2.5s good threshold; CLS is only 0.001 and TBT is 13.15ms.", "suggestedFix": "Reduce the document and critical-style latency and verify LCP with repeated lab runs plus field data before treating this narrow miss as systemic.", "artifacts": [ "evidence/load-trace-summary.json", "evidence/layout-desktop.json" ], "effort": "small" }, { "id": "F005", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-preload-priority", "guidanceCategory": "performance", "severity": "medium", "confidence": "high", "summary": "Five parser-inserted external stylesheets delay first rendering.", "evidence": "The HAR summary identifies five render-blocking stylesheet candidates, all confirmed in the rendered DOM; FCP and LCP occur together at 2549.39ms.", "suggestedFix": "Inline the small above-the-fold critical CSS, consolidate the remaining styles, and defer non-critical styles while preserving a usable unstyled fallback.", "artifacts": [ "evidence/network-summary.json", "evidence/home-dom.json", "evidence/load-trace-summary.json" ], "effort": "medium" }, { "id": "F006", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "be-inclusive", "principleCheckId": "sufficient-contrast", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Essential links fail WCAG AA text contrast.", "evidence": "axe-core reports 21 affected link nodes at 4.04–4.17:1 against white, below the required 4.5:1 for their sizes and weights.", "suggestedFix": "Use a darker link color that reaches at least 4.5:1 in every state, then rerun automated contrast testing and visually verify focus/visited states.", "artifacts": [ "evidence/axe.json", "evidence/home-desktop.png" ], "effort": "small" }, { "id": "F007", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "be-inclusive", "principleCheckId": "structure-and-focus", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "high", "summary": "The heading and landmark hierarchy is malformed.", "evidence": "The document starts with H3 then H2 elements and has no H1; axe also reports that the contentinfo footer is nested inside main. Focus indication on links is present.", "suggestedFix": "Use one descriptive H1, nest subsequent headings sequentially, and move the footer/contentinfo landmark outside main.", "artifacts": [ "evidence/platform-probe.json", "evidence/axe.json" ], "effort": "small" }, { "id": "F008", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "be-inclusive", "principleCheckId": "zoom-reflow-targets-and-media", "guidanceId": "fluid-scaling", "guidanceCategory": "user-experience", "severity": "high", "confidence": "high", "summary": "Mobile pinch zoom is explicitly disabled.", "evidence": "The viewport is width=device-width,user-scalable=no; axe classifies this as a critical accessibility violation. Narrow reflow itself has no horizontal overflow.", "suggestedFix": "Remove user-scalable=no and do not cap maximum-scale so users can magnify content.", "artifacts": [ "evidence/axe.json", "evidence/home-dom.json", "evidence/home-mobile.png" ], "effort": "small" }, { "id": "F009", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "guidanceId": "html", "guidanceCategory": "html", "severity": "medium", "confidence": "high", "summary": "The logo lacks an intrinsic height and is massively oversized for its rendered slot.", "evidence": "The image audit reports a 1933px-wide PNG rendered at 170px, with a width attribute but no height attribute.", "suggestedFix": "Export a correctly sized modern-format logo and provide both intrinsic width and height while preserving its aspect ratio.", "artifacts": [ "evidence/images.json" ], "effort": "small" }, { "id": "F010", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "be-discoverable", "principleCheckId": "title-and-description", "guidanceId": "html", "guidanceCategory": "html", "severity": "medium", "confidence": "high", "summary": "The page has a descriptive title but no meta description.", "evidence": "DOM and discoverability probes find the title in raw HTML but no meta[name=description].", "suggestedFix": "Add a concise, unique Japanese/English description explaining regional unavailability and the available alternatives.", "artifacts": [ "evidence/platform-probe.json", "evidence/discoverability.json" ], "effort": "small" }, { "id": "F011", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "be-discoverable", "principleCheckId": "crawlable-and-mobile-friendly", "guidanceId": "html", "guidanceCategory": "html", "severity": "low", "confidence": "high", "summary": "Some link text is non-descriptive and crawler control endpoints are not available from this region.", "evidence": "The DOM contains multiple links labelled only “here”; /robots.txt returns the same HTTP 403 restriction document instead of robots text. All anchors do have real href values.", "suggestedFix": "Replace generic “here” labels with destination-specific text and ensure robots.txt remains intentionally and consistently served for the regional host policy.", "artifacts": [ "evidence/recon.json", "evidence/routes-probe.json" ], "effort": "small" }, { "id": "F012", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "guidanceCategory": "security", "severity": "high", "confidence": "high", "summary": "The HTTPS response lacks baseline security headers.", "evidence": "The headers primitive finds no Content-Security-Policy, Strict-Transport-Security, or X-Content-Type-Options; there are no cookies or mixed-content signals.", "suggestedFix": "Send a restrictive CSP, HSTS, and X-Content-Type-Options: nosniff on this static restriction response.", "artifacts": [ "evidence/headers.json", "evidence/cookies.json", "evidence/network-summary.json" ], "effort": "small" }, { "id": "F013", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "guidanceId": "security", "guidanceCategory": "security", "severity": "medium", "confidence": "high", "summary": "Several browser-enforced defensive policies are absent.", "evidence": "X-Frame-Options is SAMEORIGIN, but Referrer-Policy and Permissions-Policy are missing and no CSP frame-ancestors policy is present.", "suggestedFix": "Add a strict Referrer-Policy, a least-privilege Permissions-Policy, and frame-ancestors in CSP while retaining compatible clickjacking protection.", "artifacts": [ "evidence/headers.json" ], "effort": "small" }, { "id": "F014", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "be-internationalised", "principleCheckId": "lang-dir-and-logical-properties", "guidanceId": "translator", "guidanceCategory": "built-in-ai", "severity": "high", "confidence": "high", "summary": "The bilingual document has no language metadata and no logical-property CSS signal.", "evidence": "The html element has neither lang nor dir; axe reports html-has-lang, while the platform probe finds no logical inline/block properties.", "suggestedFix": "Set the primary html lang, identify the alternate-language section with lang, provide appropriate direction metadata, and migrate layout spacing to logical properties.", "artifacts": [ "evidence/platform-probe.json", "evidence/axe.json" ], "effort": "medium" }, { "id": "F015", "pathId": "regional-notice", "url": "https://search.yahoo.co.jp/", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "deliver-optimized-decorative-images", "guidanceCategory": "user-experience", "severity": "low", "confidence": "high", "summary": "The only content image wastes pixels and uses a legacy PNG without responsive alternatives.", "evidence": "The image audit reports a 1933px source displayed at 170px, no srcset, and PNG format; it transfers 13,017 bytes.", "suggestedFix": "Serve an SVG or right-sized AVIF/WebP/PNG variant with intrinsic dimensions and an appropriate srcset where raster output remains necessary.", "artifacts": [ "evidence/images.json", "evidence/network-summary.json" ], "effort": "small" } ], "checkOutcomes": [ { "principleId": "respect-user-preferences", "checkId": "respects-color-scheme", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "The dark screenshot is pixel-equivalent to the light capture; the dark-mode probe reports html background rgb(255,255,255), color-scheme normal, and no color-scheme CSS signal.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/home-dark.png", "evidence/dark-probe.json", "evidence/platform-probe.json" ], "findingIds": [ "F001" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "confidence": "high", "status": "pass", "method": "evaluate under prefers-reduced-motion: reduce", "evidence": "The preference probe confirms reduce is active, with zero document animations and scroll-behavior auto.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/reduced-motion.json" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "The platform probe finds no prefers-contrast or forced-colors CSS; axe reports link contrast ratios of 4.04–4.17:1 where 4.5:1 is required.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/home-high-contrast.png", "evidence/platform-probe.json", "evidence/axe.json" ], "findingIds": [ "F002" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "confidence": "high", "status": "not-applicable", "method": "Recon-based applicability judgement for this delivered page state", "evidence": "Not applicable to the static regional restriction surface.", "reason": "The delivered page is a static regional notice with no same-document state or internal route transition to animate." }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "confidence": "high", "status": "pass", "method": "CSS and runtime animation inspection", "evidence": "The static page has no scroll-linked motion, no animations, and no animation-timeline/scroll-timeline CSS, so it does not misuse main-thread scroll handlers.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/platform-probe.json", "evidence/reduced-motion.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "confidence": "high", "status": "pass", "method": "DOM/CSS inspection", "evidence": "The notice has no custom pointer gesture handlers or gesture UI and relies on native document scrolling; no conflicting gesture behavior was observed.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/platform-probe.json", "evidence/home-mobile.png" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "confidence": "high", "status": "pass", "method": "scroll/layout and screenshot inspection", "evidence": "The page has no sticky or affixed navigation chrome that needs scroll-state adaptation; content scrolls as one continuous document without obstruction.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/home-desktop.png", "evidence/layout-desktop.json" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "confidence": "high", "status": "not-applicable", "method": "Recon-based applicability judgement for this delivered page state", "evidence": "Not applicable to the static regional restriction surface.", "reason": "The page exposes no tooltip, popover, menu, or other anchored overlay." }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "confidence": "high", "status": "pass", "method": "visual hierarchy and link inspection", "evidence": "The single-page notice uses clear article cards and link styling; in-page navigation does not move focus or scroll to hidden destinations.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/home-desktop.png", "evidence/recon.json" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "confidence": "high", "status": "pass", "method": "load screenshot and DOM overlay probe", "evidence": "The load screenshot shows content immediately with no popup/interstitial; the platform probe reports zero dialogs and zero custom overlays.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/home-desktop.png", "evidence/platform-probe.json" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "confidence": "high", "status": "pass", "method": "DOM primitive inspection", "evidence": "No transient overlay or disclosure control is present, so there is no ad-hoc div-based control replacing a semantic primitive.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/home-dom.json", "evidence/platform-probe.json" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "confidence": "high", "status": "pass", "method": "desktop and mobile screenshot review", "evidence": "The notice devotes nearly the entire viewport to its availability message, with only a compact logo header and footer.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "confidence": "high", "status": "pass", "method": "mobile layout measurement", "evidence": "At 360x800, scrollWidth, clientWidth, and innerWidth are all 360px; horizontalOverflowPx is 0 and viewport meta is present.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/layout-mobile.json", "evidence/home-mobile.png" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "confidence": "high", "status": "not-applicable", "method": "Recon-based applicability judgement for this delivered page state", "evidence": "Not applicable to the static regional restriction surface.", "reason": "The static notice has no component reused in independently sized containers; mobile and desktop layouts were tested directly." }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "At 360px, the target-size probe measures several primary links at 16–21px tall and footer links at 14px tall; keyboard focus itself remains visible.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/target-sizes.json", "evidence/home-mobile.png" ], "findingIds": [ "F003" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "confidence": "high", "status": "pass", "method": "first-viewport visual review", "evidence": "The first viewport clearly states that Yahoo! JAPAN is unavailable in the EEA/UK and the body explains the decision and available alternatives.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "confidence": "high", "status": "pass", "method": "content/link walkthrough", "evidence": "For the delivered restriction state, the complete flow is reading the notice and following available-service/help links; all 20 links have real href destinations and no modal/account detours.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/recon.json", "evidence/home-dom.json" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "confidence": "high", "status": "pass", "method": "restriction and route response inspection", "evidence": "The HTTP 403 state is rendered as a clear bilingual explanation with help and still-available service links instead of a blank shell or spinner.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/home-desktop.png", "evidence/routes-probe.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "The trace summary reports LCP 2549.39ms, about 49ms beyond the 2.5s good threshold; CLS is only 0.001 and TBT is 13.15ms.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/load-trace-summary.json", "evidence/layout-desktop.json" ], "findingIds": [ "F004" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "confidence": "high", "status": "pass", "method": "layout-shift observer", "evidence": "Observed CLS is 0 on mobile and 0.001068 on desktop, with only one negligible shift.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/layout-mobile.json", "evidence/layout-desktop.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "confidence": "high", "status": "pass", "method": "trace long-task analysis", "evidence": "The trace records one 63.15ms long task and only 13.15ms total blocking time; the page ships no JavaScript.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/load-trace-summary.json", "evidence/platform-probe.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "The HAR summary identifies five render-blocking stylesheet candidates, all confirmed in the rendered DOM; FCP and LCP occur together at 2549.39ms.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/network-summary.json", "evidence/home-dom.json", "evidence/load-trace-summary.json" ], "findingIds": [ "F005" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "confidence": "high", "status": "pass", "method": "HAR and DOM script inventory", "evidence": "The page ships no JavaScript, only 73,729 transferred bytes over 9 requests, and no third-party tracker code; no large duplicate/legacy bundle is present.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/network-summary.json", "evidence/platform-probe.json", "evidence/trackers.json" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "confidence": "high", "status": "pass", "method": "axe and DOM semantics inspection", "evidence": "The single image has meaningful alt text, links have text names, and axe reports no accessible-name, role, or image-alt violation.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/axe.json", "evidence/images.json" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "axe-core reports 21 affected link nodes at 4.04–4.17:1 against white, below the required 4.5:1 for their sizes and weights.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/axe.json", "evidence/home-desktop.png" ], "findingIds": [ "F006" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "The document starts with H3 then H2 elements and has no H1; axe also reports that the contentinfo footer is nested inside main. Focus indication on links is present.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/platform-probe.json", "evidence/axe.json" ], "findingIds": [ "F007" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "confidence": "high", "status": "pass", "method": "desktop/mobile screenshot review", "evidence": "Body text reflows without clipping at 360px, uses readable spacing, and remains stable; no media or canvas text is present.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-desktop.png", "evidence/layout-mobile.json" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "The viewport is width=device-width,user-scalable=no; axe classifies this as a critical accessibility violation. Narrow reflow itself has no horizontal overflow.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/axe.json", "evidence/home-dom.json", "evidence/home-mobile.png" ], "findingIds": [ "F008" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "confidence": "high", "status": "pass", "method": "rendered DOM and script inventory", "evidence": "The delivered document contains no script elements or event-driven application runtime, and all evidence primitives loaded it without a Runtime exception. Lighthouse could not score the intentional 403 response.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/home-dom.json", "evidence/lighthouse.json" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "The image audit reports a 1933px-wide PNG rendered at 170px, with a width attribute but no height attribute.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/images.json" ], "findingIds": [ "F009" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "confidence": "high", "status": "pass", "method": "DOM/API/network inspection", "evidence": "The static page invokes no deprecated APIs, permissions, notifications, geolocation, paste handlers, or vulnerable client library; it ships no JavaScript.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/platform-probe.json", "evidence/network-summary.json" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "DOM and discoverability probes find the title in raw HTML but no meta[name=description].", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/platform-probe.json", "evidence/discoverability.json" ], "findingIds": [ "F010" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "The DOM contains multiple links labelled only “here”; /robots.txt returns the same HTTP 403 restriction document instead of robots text. All anchors do have real href values.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/recon.json", "evidence/routes-probe.json" ], "findingIds": [ "F011" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "confidence": "high", "status": "pass", "method": "HTTP and regional-policy inspection", "evidence": "The delivered state consistently returns HTTP 403 for the root, robots, sitemap, and unknown paths, matching its explicit regional-denial purpose rather than accidentally exposing an indexable success page.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/routes-probe.json", "evidence/discoverability.json" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "confidence": "high", "status": "not-applicable", "method": "Recon-based applicability judgement for this delivered page state", "evidence": "Not applicable to the static regional restriction surface.", "reason": "The regional restriction response is not an article, product, event, organization profile, or other rich entity requiring structured/share-preview metadata." }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "The headers primitive finds no Content-Security-Policy, Strict-Transport-Security, or X-Content-Type-Options; there are no cookies or mixed-content signals.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/headers.json", "evidence/cookies.json", "evidence/network-summary.json" ], "findingIds": [ "F012" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "confidence": "high", "status": "pass", "method": "trackers, cookies, secrets, and HAR inspection", "evidence": "No cookies, known trackers, analytics calls, or exposed secrets were found. The sole third-party origin is Yahoo’s static asset CDN s.yimg.jp.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/trackers.json", "evidence/cookies.json", "evidence/secrets.json", "evidence/network-summary.json" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "confidence": "high", "status": "not-applicable", "method": "Recon-based applicability judgement for this delivered page state", "evidence": "Not applicable to the static regional restriction surface.", "reason": "The restriction notice requests no permissions and has no authentication surface." }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "X-Frame-Options is SAMEORIGIN, but Referrer-Policy and Permissions-Policy are missing and no CSP frame-ancestors policy is present.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/headers.json" ], "findingIds": [ "F013" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "confidence": "high", "status": "pass", "method": "raw/rendered/no-JS comparison", "evidence": "Discoverability reports 100% raw-to-rendered content coverage and no JS shell; the crawler screenshot retains the complete notice.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/discoverability.json", "evidence/discoverability-rendered.png", "evidence/discoverability-crawler.png" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "confidence": "high", "status": "pass", "method": "DOM and runtime inventory", "evidence": "The page has no runtime application state, overlays, async dependencies, or scripts; its static links and content remain visible without JavaScript.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/platform-probe.json", "evidence/discoverability.json" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "confidence": "high", "status": "not-applicable", "method": "Recon-based applicability judgement for this delivered page state", "evidence": "Not applicable to the static regional restriction surface.", "reason": "This static regional denial notice is not an app-like surface and has no installability intent." }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "confidence": "high", "status": "pass", "method": "HTTP error-state walkthrough", "evidence": "The main 403 and unknown-path 403 responses show the same useful bilingual availability explanation and recovery links rather than a broken shell.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/routes-probe.json", "evidence/home-desktop.png" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "The html element has neither lang nor dir; axe reports html-has-lang, while the platform probe finds no logical inline/block properties.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/platform-probe.json", "evidence/axe.json" ], "findingIds": [ "F014" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "confidence": "high", "status": "pass", "method": "bilingual content review", "evidence": "The static notice presents its date in conventional Japanese and English forms within separately authored language sections and contains no currencies, quantities, durations, or user-locale calculations.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/home-dom.json", "evidence/home-desktop.png" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "confidence": "high", "status": "not-applicable", "method": "Recon-based applicability judgement for this delivered page state", "evidence": "Not applicable to the static regional restriction surface.", "reason": "The notice contains a historical calendar date but no time, event scheduling, recurrence, or timezone-sensitive data." }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "confidence": "high", "status": "pass", "method": "full-page screenshot and flow review", "evidence": "The notice states the restriction directly, shows alternatives, has no consent wall, upsell, disguised advertising, preselected choice, or forced continuity.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-dom.json" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "confidence": "high", "status": "not-applicable", "method": "Recon-based applicability judgement for this delivered page state", "evidence": "Not applicable to the static regional restriction surface.", "reason": "There are no forms or editable inputs on the delivered notice." }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "confidence": "high", "status": "not-applicable", "method": "Recon-based applicability judgement for this delivered page state", "evidence": "Not applicable to the static regional restriction surface.", "reason": "There are no form fields or sign-in, payment, or address inputs on the delivered notice." }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "confidence": "high", "status": "not-applicable", "method": "Recon-based applicability judgement for this delivered page state", "evidence": "Not applicable to the static regional restriction surface.", "reason": "There is no checkout, subscription, consent, authentication, or account-management flow on the delivered notice." }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "confidence": "high", "status": "issues", "method": "Direct evidence review using the referenced artifacts", "evidence": "The image audit reports a 1933px source displayed at 170px, no srcset, and PNG format; it transfers 13,017 bytes.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/images.json", "evidence/network-summary.json" ], "findingIds": [ "F015" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "confidence": "high", "status": "pass", "method": "HAR, trace, and runtime review", "evidence": "There is no JavaScript, background processing, analytics, polling, or over-fetch loop; load uses 9 requests and 73,729 transferred bytes.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/network-summary.json", "evidence/load-trace-summary.json", "evidence/platform-probe.json" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "confidence": "high", "status": "pass", "method": "HAR and media inventory", "evidence": "No video/audio/autoplay exists, no tracker was detected, and the only third-party is Yahoo’s asset CDN; total transfer is 73,729 bytes.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/network-summary.json", "evidence/trackers.json", "evidence/platform-probe.json" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "confidence": "high", "status": "not-applicable", "method": "Recon-based applicability judgement for this delivered page state", "evidence": "Not applicable to the static regional restriction surface.", "reason": "The delivered surface is only a static regional availability notice, not an agent-operable search capability." }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "confidence": "high", "status": "not-applicable", "method": "Recon-based applicability judgement for this delivered page state", "evidence": "Not applicable to the static regional restriction surface.", "reason": "The static availability notice has no inference task where an on-device model would improve the experience." }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "confidence": "high", "status": "not-applicable", "method": "Recon-based applicability judgement for this delivered page state", "evidence": "Not applicable to the static regional restriction surface.", "reason": "The page has no modal, route transition, feed, editor, or other representative repeated interaction; fabricating one would not test a real session behavior." }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "confidence": "high", "status": "pass", "method": "heap and runtime metrics", "evidence": "The static 99-element document uses about 0.96MB JS heap at runtime; the heap summary is 1.92MB self size with 44,087 nodes, proportionate for Chrome’s baseline environment.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/heap-baseline.json", "evidence/runtime-metrics.json" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "confidence": "high", "status": "pass", "method": "heap constructor and runtime inspection", "evidence": "The baseline heap top constructors contain no Detached* population; the page has no scripts, timers, observers, or application listeners to accumulate.", "pathIds": [ "regional-notice" ], "artifacts": [ "evidence/heap-baseline.json", "evidence/platform-probe.json", "evidence/runtime-metrics.json" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "F001", "F002" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "pass" }, { "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", "F008" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "F009" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "F010", "F011" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F012", "F013" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "pass" }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "issues", "findingIds": [ "F014" ] }, { "principleId": "be-trustworthy", "expectation": "default", "status": "pass" }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F015" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "not-applicable", "reason": "Derived from the recorded check-level applicability and execution outcomes." }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "pass" } ], "taskList": [ { "id": "T001", "title": "Restore inclusive scaling, contrast, semantics, and touch target sizing", "priority": 1, "findingIds": [ "F002", "F003", "F006", "F007", "F008", "F014" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T002", "title": "Add a complete security-header policy to the regional 403 response", "priority": 2, "findingIds": [ "F012", "F013" ], "guidanceId": "security", "status": "open" }, { "id": "T003", "title": "Consolidate critical CSS and reduce render-blocking load latency", "priority": 3, "findingIds": [ "F004", "F005" ], "guidanceId": "optimize-preload-priority", "status": "open" }, { "id": "T004", "title": "Support preference-driven dark and high-contrast rendering", "priority": 4, "findingIds": [ "F001", "F002" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "T005", "title": "Right-size the logo and provide intrinsic dimensions/modern formats", "priority": 5, "findingIds": [ "F009", "F015" ], "guidanceId": "deliver-optimized-decorative-images", "status": "open" }, { "id": "T006", "title": "Complete metadata and descriptive link text for the regional notice", "priority": 6, "findingIds": [ "F010", "F011" ], "guidanceId": "html", "status": "open" } ], "budget": { "pathCount": 1, "auditPasses": 1 }, "artifacts": [ { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "Rendered regional restriction notice at the desktop viewport", "condition": "viewport: 780x493", "findingIds": [ "F006" ] }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "Narrow viewport rendering of the restriction notice", "condition": "viewport: 360x800", "findingIds": [ "F003", "F008" ] }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "Page remains light under the dark color-scheme preference", "condition": "prefers-color-scheme: dark", "findingIds": [ "F001" ] }, { "type": "screenshot", "path": "evidence/home-high-contrast.png", "caption": "Page under prefers-contrast: more", "condition": "prefers-contrast: more", "findingIds": [ "F002" ] }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "Rendered HTML and computed styles for primary landmarks and controls", "findingIds": [ "F005", "F008" ] }, { "type": "other", "path": "evidence/recon.json", "caption": "Links, forms, manifest, and route reconnaissance", "findingIds": [ "F011" ] }, { "type": "layout", "path": "evidence/layout-mobile.json", "caption": "Mobile layout metrics with zero horizontal overflow and zero CLS", "condition": "viewport: 360x800" }, { "type": "layout", "path": "evidence/layout-desktop.json", "caption": "Desktop layout metrics and layout-shift observation", "findingIds": [ "F004" ] }, { "type": "discoverability", "path": "evidence/discoverability.json", "caption": "Raw HTML versus rendered DOM discoverability comparison", "findingIds": [ "F010" ] }, { "type": "screenshot", "path": "evidence/discoverability-rendered.png", "caption": "Rendered browser view from discoverability capture" }, { "type": "screenshot", "path": "evidence/discoverability-crawler.png", "caption": "Crawler/no-JavaScript view from discoverability capture", "condition": "JavaScript disabled" }, { "type": "trace", "path": "evidence/load-trace.json", "caption": "DevTools load trace" }, { "type": "trace-summary", "path": "evidence/load-trace-summary.json", "caption": "Compact load timing and main-thread summary", "findingIds": [ "F004", "F005" ] }, { "type": "har", "path": "evidence/network.har", "caption": "HAR 1.2 network capture" }, { "type": "har-summary", "path": "evidence/network-summary.json", "caption": "Compact request, weight, third-party, and delivery summary", "findingIds": [ "F005", "F012", "F015" ] }, { "type": "other", "path": "evidence/headers.json", "caption": "Security response-header audit", "findingIds": [ "F012", "F013" ] }, { "type": "other", "path": "evidence/cookies.json", "caption": "Cookie security and third-party audit", "findingIds": [ "F012" ] }, { "type": "other", "path": "evidence/trackers.json", "caption": "Third-party and known-tracker audit" }, { "type": "other", "path": "evidence/images.json", "caption": "Rendered image dimensions, sizing, and format audit", "findingIds": [ "F009", "F015" ] }, { "type": "other", "path": "evidence/secrets.json", "caption": "Client-delivered secret scan" }, { "type": "heap", "path": "evidence/heap-baseline.json", "caption": "Baseline heap summary for the static page" }, { "type": "other", "path": "evidence/platform-probe.json", "caption": "Document semantics, metadata, focus, CSS/API signals, and PWA probe", "findingIds": [ "F001", "F002", "F007", "F010", "F014" ] }, { "type": "other", "path": "evidence/reduced-motion.json", "caption": "Animation state under reduced-motion preference", "condition": "prefers-reduced-motion: reduce" }, { "type": "other", "path": "evidence/dark-probe.json", "caption": "Computed colors under dark-mode preference", "condition": "prefers-color-scheme: dark", "findingIds": [ "F001" ] }, { "type": "other", "path": "evidence/routes-probe.json", "caption": "robots.txt, sitemap.xml, and unknown-route response probe", "findingIds": [ "F011" ] }, { "type": "other", "path": "evidence/runtime-metrics.json", "caption": "Navigation, DOM size, and JS heap runtime metrics" }, { "type": "other", "path": "evidence/axe.json", "caption": "axe-core 4.10.3 accessibility results", "findingIds": [ "F002", "F006", "F007", "F008", "F014" ] }, { "type": "other", "path": "evidence/target-sizes.json", "caption": "Link target dimensions at the mobile viewport", "condition": "viewport: 360x800", "findingIds": [ "F003" ] }, { "type": "lighthouse", "path": "evidence/lighthouse.json", "caption": "Lighthouse attempt; document rejected because the delivered response is HTTP 403" }, { "type": "other", "path": "evidence/guidance-retrieved.md", "caption": "Full Modern Web Guidance retrieved for all 136 mapped guide IDs" }, { "type": "other", "path": "evidence/guidance-searches.md", "caption": "Modern Web Guidance search results for all 59 mapped free-text queries" }, { "type": "other", "path": "coverage-manifest.json", "caption": "Atomic coverage manifest for all catalog checks" }, { "type": "other", "path": "evidence-plan.json", "caption": "Per-check evidence plan for all 58 catalog checks" } ], "agent": "pi", "runId": "2026-07-24T02-18-09-111Z" }