{ "url": "https://gcc.sp.mbga.jp", "auditedAt": "2026-07-22T20:05:00.000Z", "mode": "report", "status": "completed", "statusDetail": "The requested gcc.sp.mbga.jp entry redirects to sp.mbga.jp; the redirected public experience and representative templates were audited.", "page": { "appType": "mpa", "framework": "legacy server-rendered site with client-side helpers", "notes": "Japanese mobile game portal. Representative coverage includes landing, catalogue, article, registration entry and invalid-route recovery. Authenticated game/account states and every individual game were not covered because they require credentials or duplicate the sampled templates." }, "evidenceUsed": [ "screenshot", "dom", "evaluate-probe", "layout-metrics", "trace", "har", "discoverability", "headers", "cookies", "trackers", "images", "secrets", "heap-summary", "lighthouse" ], "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" ], "artifacts": [ { "type": "screenshot", "path": "evidence/article.png", "caption": "article evidence", "findingIds": [ "F05", "F06", "F17" ] }, { "type": "other", "path": "evidence/cookies.json", "caption": "cookies evidence", "findingIds": [ "F22" ] }, { "type": "screenshot", "path": "evidence/dark.png", "caption": "dark evidence", "findingIds": [ "F01" ] }, { "type": "screenshot", "path": "evidence/discoverability-crawler.png", "caption": "discoverability crawler evidence", "findingIds": [] }, { "type": "screenshot", "path": "evidence/discoverability-rendered.png", "caption": "discoverability rendered evidence", "findingIds": [] }, { "type": "discoverability", "path": "evidence/discoverability.json", "caption": "discoverability evidence", "findingIds": [] }, { "type": "dom", "path": "evidence/dom.json", "caption": "dom evidence", "findingIds": [] }, { "type": "screenshot", "path": "evidence/forced-colors.png", "caption": "forced colors evidence", "findingIds": [] }, { "type": "other", "path": "evidence/headers.json", "caption": "headers evidence", "findingIds": [ "F22", "F24" ] }, { "type": "heap", "path": "evidence/heap-baseline.heapsnapshot", "caption": "heap baseline evidence", "findingIds": [] }, { "type": "heap", "path": "evidence/heap-post.heapsnapshot", "caption": "heap post evidence", "findingIds": [] }, { "type": "other", "path": "evidence/images.json", "caption": "images evidence", "findingIds": [ "F14", "F26" ] }, { "type": "other", "path": "evidence/interaction-probe.json", "caption": "interaction probe evidence", "findingIds": [ "F08", "F16", "F18", "F21" ] }, { "type": "layout", "path": "evidence/layout-mobile.json", "caption": "layout mobile evidence", "findingIds": [ "F03" ] }, { "type": "lighthouse", "path": "evidence/lighthouse-summary.json", "caption": "lighthouse summary evidence", "findingIds": [] }, { "type": "lighthouse", "path": "evidence/lighthouse.json", "caption": "lighthouse evidence", "findingIds": [ "F11", "F12", "F13", "F15", "F16", "F18", "F19", "F26" ] }, { "type": "screenshot", "path": "evidence/listing.png", "caption": "listing evidence", "findingIds": [ "F04", "F06", "F07", "F17" ] }, { "type": "screenshot", "path": "evidence/mobile.png", "caption": "mobile evidence", "findingIds": [ "F01", "F03", "F04" ] }, { "type": "har-summary", "path": "evidence/network-summary.json", "caption": "network summary evidence", "findingIds": [ "F12", "F27" ] }, { "type": "har", "path": "evidence/network.har", "caption": "network evidence", "findingIds": [] }, { "type": "screenshot", "path": "evidence/not-found.png", "caption": "not found evidence", "findingIds": [ "F10", "F25" ] }, { "type": "other", "path": "evidence/page-probe.json", "caption": "page probe evidence", "findingIds": [ "F02", "F07", "F09", "F14", "F19", "F20" ] }, { "type": "other", "path": "evidence/reduced-motion.json", "caption": "reduced motion evidence", "findingIds": [] }, { "type": "other", "path": "evidence/registration-probe.json", "caption": "registration probe evidence", "findingIds": [ "F23" ] }, { "type": "screenshot", "path": "evidence/registration.png", "caption": "registration evidence", "findingIds": [ "F23" ] }, { "type": "other", "path": "evidence/robots.txt", "caption": "robots evidence", "findingIds": [ "F20" ] }, { "type": "other", "path": "evidence/secrets.json", "caption": "secrets evidence", "findingIds": [] }, { "type": "other", "path": "evidence/sitemap-response.html", "caption": "sitemap response evidence", "findingIds": [ "F20" ] }, { "type": "trace-summary", "path": "evidence/trace-summary.json", "caption": "trace summary evidence", "findingIds": [ "F11" ] }, { "type": "trace", "path": "evidence/trace.json", "caption": "trace evidence", "findingIds": [] }, { "type": "other", "path": "evidence/trackers.json", "caption": "trackers evidence", "findingIds": [] } ], "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 multimodal evidence review against the mapped check and guidance.", "evidence": "Light and dark captures are byte-identical (254,136 bytes), and the dark capture retains white/light-grey surfaces.", "pathIds": [ "home" ], "artifacts": [ "evidence/mobile.png", "evidence/dark.png" ], "findingIds": [ "F01" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "high", "method": "evaluate under prefers-reduced-motion: reduce", "evidence": "Reduced-motion emulation was active; no running animations were found and only a hidden modal carried a 0.3s transition.", "pathIds": [ "home" ], "artifacts": [ "evidence/reduced-motion.json" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "pass", "confidence": "high", "method": "forced-colors screenshot review", "evidence": "Forced-colors capture retained readable high-contrast text, controls, borders and content.", "pathIds": [ "home" ], "artifacts": [ "evidence/forced-colors.png" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "Representative landing, listing, article and registration navigations expose no authored view-transition CSS or route transition; page probe found no transition rules.", "pathIds": [ "home" ], "artifacts": [ "evidence/page-probe.json" ], "findingIds": [ "F02" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "not-applicable", "confidence": "high", "method": "Recon and representative-state applicability review.", "evidence": "No parallax, scrollytelling, scroll reveal or other scroll-linked animation exists on the representative pages, so there is no scroll-linked implementation to assess.", "reason": "No parallax, scrollytelling, scroll reveal or other scroll-linked animation exists on the representative pages, so there is no scroll-linked implementation to assess." }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "not-applicable", "confidence": "high", "method": "Recon and representative-state applicability review.", "evidence": "No swipe, pull, drag, carousel or other gesture-driven control exists on the audited public surfaces.", "reason": "No swipe, pull, drag, carousel or other gesture-driven control exists on the audited public surfaces." }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "The 2,882px landing page uses static chrome and the CSS probe found no scroll-state query or progress treatment.", "pathIds": [ "home" ], "artifacts": [ "evidence/layout-mobile.json", "evidence/mobile.png" ], "findingIds": [ "F03" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "not-applicable", "confidence": "high", "method": "Recon and representative-state applicability review.", "evidence": "No visible tooltip, popover or anchored menu was present on the audited public states.", "reason": "No visible tooltip, popover or anchored menu was present on the audited public states." }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "The long landing and catalogue screens use abrupt section/page changes with no current-location cue, transition, or post-navigation highlight.", "pathIds": [ "home" ], "artifacts": [ "evidence/mobile.png", "evidence/listing.png" ], "findingIds": [ "F04" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "pass", "confidence": "high", "method": "visual review on initial load", "evidence": "No load-time modal, consent wall or full-viewport interruption obscured the entry page.", "pathIds": [ "home" ], "artifacts": [ "evidence/mobile.png" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "not-applicable", "confidence": "high", "method": "Recon and representative-state applicability review.", "evidence": "No user-visible transient overlay, modal flow or disclosure was present in the exercised states.", "reason": "No user-visible transient overlay, modal flow or disclosure was present in the exercised states." }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "The article first viewport is dominated by stacked game ads, anniversary promotion, AndApp transfer panel and cross-device promotion; article text is not visible in the captured viewport.", "pathIds": [ "home" ], "artifacts": [ "evidence/article.png" ], "findingIds": [ "F05" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "At 390px, the catalogue and article render multi-column desktop compositions with tiny text and controls, unlike the reflowed landing page.", "pathIds": [ "home" ], "artifacts": [ "evidence/listing.png", "evidence/article.png" ], "findingIds": [ "F06" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "Stylesheet inspection found no @container rules; cards and promotional modules remain desktop-dense on narrow secondary templates.", "pathIds": [ "home" ], "artifacts": [ "evidence/page-probe.json", "evidence/listing.png" ], "findingIds": [ "F07" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "The interaction probe found 32 of 52 visible interactive elements under 44px in at least one dimension; footer links are only 15px high.", "pathIds": [ "home" ], "artifacts": [ "evidence/interaction-probe.json" ], "findingIds": [ "F08" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "high", "method": "first-viewport screenshot and DOM headings/links", "evidence": "The first viewport clearly identifies Mobage and provides registration, login, new games, rankings and genre actions.", "pathIds": [ "home" ], "artifacts": [ "evidence/mobile.png", "evidence/page-probe.json" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "The rendered landing-page probe found ten named new-game cards with an empty href, making the discovery path dependent on script handlers and unavailable to crawlers or standard link actions.", "pathIds": [ "home" ], "artifacts": [ "evidence/page-probe.json" ], "findingIds": [ "F09" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "The deliberately invalid URL rendered the full game portal/article-style promotional page with no 404 explanation, retry, search, or route recovery message.", "pathIds": [ "home" ], "artifacts": [ "evidence/not-found.png" ], "findingIds": [ "F10" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "Trace measured FCP/LCP at 4.42s; Lighthouse measured FCP 4.0s and LCP 4.6s (performance 0.73).", "pathIds": [ "home" ], "artifacts": [ "evidence/trace-summary.json", "evidence/lighthouse.json" ], "findingIds": [ "F11" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "pass", "confidence": "high", "method": "layout observer plus image audit", "evidence": "Layout observer measured CLS 0.0000375 with image dimensions present on all audited img elements.", "pathIds": [ "home" ], "artifacts": [ "evidence/layout-mobile.json", "evidence/images.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "pass", "confidence": "high", "method": "trace and long-task observer", "evidence": "Trace and layout observers recorded zero long tasks and 0ms total blocking time.", "pathIds": [ "home" ], "artifacts": [ "evidence/trace-summary.json", "evidence/layout-mobile.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "HAR recorded two redirects and five render-blocking candidates; Lighthouse estimates 1.49s redirect, 1.2s render-blocking and 1.1MB cache-lifetime savings.", "pathIds": [ "home" ], "artifacts": [ "evidence/network-summary.json", "evidence/lighthouse.json" ], "findingIds": [ "F12" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "Lighthouse estimates 35KiB unused CSS and 42KiB unused JavaScript on a simple portal page.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json" ], "findingIds": [ "F13" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "Image audit found 44 of 45 images without alt text; page probe also found an unnamed button and an unlabelled visible textarea.", "pathIds": [ "home" ], "artifacts": [ "evidence/images.json", "evidence/page-probe.json" ], "findingIds": [ "F14" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "Lighthouse measured 2.86:1 for 11px blue footer links on #d0d0d0, below the required 4.5:1.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json" ], "findingIds": [ "F15" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "The interaction probe found zero main and zero navigation landmarks; Lighthouse failed landmark-one-main. Keyboard outline was visible, but structure remains weak.", "pathIds": [ "home" ], "artifacts": [ "evidence/interaction-probe.json", "evidence/lighthouse.json" ], "findingIds": [ "F16" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "At 390px, listing and article templates retain dense desktop columns and tiny card/caption text that is difficult to read.", "pathIds": [ "home" ], "artifacts": [ "evidence/listing.png", "evidence/article.png" ], "findingIds": [ "F17" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "Viewport is width=device-width, maximum-scale=1.0, user-scalable=no; Lighthouse failed meta-viewport and the target probe found 32 under 44px.", "pathIds": [ "home" ], "artifacts": [ "evidence/interaction-probe.json", "evidence/lighthouse.json" ], "findingIds": [ "F18" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "pass", "confidence": "high", "method": "Lighthouse best-practices audit", "evidence": "Lighthouse best-practices scored 1.0 and its console-errors audit passed.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "pass", "confidence": "high", "method": "DOM/image probe plus Lighthouse", "evidence": "DOM reports HTML doctype, UTF-8, viewport metadata and all images with explicit dimensions; Lighthouse best-practices scored 1.0.", "pathIds": [ "home" ], "artifacts": [ "evidence/page-probe.json", "evidence/images.json", "evidence/lighthouse.json" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "pass", "confidence": "high", "method": "Lighthouse best-practices audits", "evidence": "Lighthouse best-practices scored 1.0 with no detected deprecated API, prompt-on-load or vulnerable-library failure.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "high", "method": "DOM metadata probe", "evidence": "Rendered HTML includes title “モバゲー” and a descriptive Japanese meta description.", "pathIds": [ "home" ], "artifacts": [ "evidence/page-probe.json" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "Lighthouse failed crawlable-anchors; the DOM probe found multiple visible game cards with empty href values, and viewport disables scaling.", "pathIds": [ "home" ], "artifacts": [ "evidence/page-probe.json", "evidence/lighthouse.json" ], "findingIds": [ "F19" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "The public landing page has no canonical link; /sitemap.xml returns a normal HTML marketing page rather than an XML sitemap.", "pathIds": [ "home" ], "artifacts": [ "evidence/page-probe.json", "evidence/sitemap-response.html", "evidence/robots.txt" ], "findingIds": [ "F20" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "The page has no JSON-LD, og:description is empty, and no canonical URL is supplied despite representing a public game portal.", "pathIds": [ "home" ], "artifacts": [ "evidence/interaction-probe.json" ], "findingIds": [ "F21" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "HTTPS is used, but CSP, HSTS, nosniff, frame protection, Referrer-Policy and Permissions-Policy are absent. All three cookies lack Secure and use SameSite=None.", "pathIds": [ "home" ], "artifacts": [ "evidence/headers.json", "evidence/cookies.json" ], "findingIds": [ "F22" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "pass", "confidence": "high", "method": "tracker, HAR and secret scans", "evidence": "No known external tracker domains or exposed secrets were detected; network origins were Mobage-controlled subdomains.", "pathIds": [ "home" ], "artifacts": [ "evidence/trackers.json", "evidence/network-summary.json", "evidence/secrets.json" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "The public registration entry offers only registration and login links; page/source probes found no WebAuthn/passkey capability. No permission prompt fired on load.", "pathIds": [ "home" ], "artifacts": [ "evidence/registration.png", "evidence/registration-probe.json" ], "findingIds": [ "F23" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "Header evidence found no HSTS, CSP/frame-ancestors or X-Frame-Options, Referrer-Policy, Permissions-Policy or nosniff.", "pathIds": [ "home" ], "artifacts": [ "evidence/headers.json" ], "findingIds": [ "F24" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "pass", "confidence": "high", "method": "discoverability no-JS comparison", "evidence": "Raw HTML was a substantive 25,665-byte document with title, h1 and description; 52% rendered-word coverage and no empty SPA shell.", "pathIds": [ "home" ], "artifacts": [ "evidence/discoverability.json", "evidence/discoverability-crawler.png" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "pass", "confidence": "high", "method": "multi-template visual review plus Lighthouse", "evidence": "Representative public pages rendered complete content without cut-off overlays, infinite loading or uncaught runtime errors.", "pathIds": [ "home" ], "artifacts": [ "evidence/mobile.png", "evidence/listing.png", "evidence/registration.png", "evidence/lighthouse.json" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "not-applicable", "confidence": "high", "method": "Recon and representative-state applicability review.", "evidence": "This public game directory hands off to intrinsically online services and does not present itself as an installable app; offline/installability is not required for the audited portal.", "reason": "This public game directory hands off to intrinsically online services and does not present itself as an installable app; offline/installability is not required for the audited portal." }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "A deliberately unknown path rendered unrelated portal content with no error status/message or recovery action visible.", "pathIds": [ "home" ], "artifacts": [ "evidence/not-found.png" ], "findingIds": [ "F25" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "not-applicable", "confidence": "high", "method": "Recon and representative-state applicability review.", "evidence": "The site is deliberately Japanese-only (lang=ja) and no alternate-language or bidi surface is offered; broader translation layout was judged out of scope.", "reason": "The site is deliberately Japanese-only (lang=ja) and no alternate-language or bidi surface is offered; broader translation layout was judged out of scope." }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "not-applicable", "confidence": "high", "method": "Recon and representative-state applicability review.", "evidence": "No dates, currencies, locale-switching or other locale-sensitive data appeared in the representative public task surfaces.", "reason": "No dates, currencies, locale-switching or other locale-sensitive data appeared in the representative public task surfaces." }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "not-applicable", "confidence": "high", "method": "Recon and representative-state applicability review.", "evidence": "No event scheduling, stored times, recurring intervals or cross-time-zone flow appeared in scope.", "reason": "No event scheduling, stored times, recurring intervals or cross-time-zone flow appeared in scope." }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "pass", "confidence": "high", "method": "visual walkthrough of public and registration entry pages", "evidence": "No consent nag, confirmshaming, forced continuity or disguised control appeared on the audited public and registration-entry surfaces.", "pathIds": [ "home" ], "artifacts": [ "evidence/mobile.png", "evidence/registration.png" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "not-applicable", "confidence": "high", "method": "Recon and representative-state applicability review.", "evidence": "The public registration entry exposes no editable form fields; submitting account credentials was outside this unauthenticated audit.", "reason": "The public registration entry exposes no editable form fields; submitting account credentials was outside this unauthenticated audit." }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "not-applicable", "confidence": "high", "method": "Recon and representative-state applicability review.", "evidence": "No visible address, payment, sign-in or sign-up input fields were exposed on the audited public pages.", "reason": "No visible address, payment, sign-in or sign-up input fields were exposed on the audited public pages." }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "not-applicable", "confidence": "high", "method": "Recon and representative-state applicability review.", "evidence": "No checkout, subscription, cancellation or authenticated account-management flow was available without creating or using an account.", "reason": "No checkout, subscription, cancellation or authenticated account-management flow was available without creating or using an account." }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "Image audit found 39 legacy PNG/GIF assets, 16 below-fold images without lazy loading and no modern-format images; Lighthouse estimates 573KiB image savings.", "pathIds": [ "home" ], "artifacts": [ "evidence/images.json", "evidence/lighthouse.json" ], "findingIds": [ "F26" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "pass", "confidence": "high", "method": "trace, HAR and tracker review", "evidence": "Trace observed no long tasks or continuing animation work; network capture found one XHR/fetch and no known analytics tracker.", "pathIds": [ "home" ], "artifacts": [ "evidence/trace-summary.json", "evidence/network-summary.json", "evidence/trackers.json" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "Direct multimodal evidence review against the mapped check and guidance.", "evidence": "HAR recorded 1,197,467 transferred bytes, including 1,038,457 image bytes; four legacy sprites alone total about 670KiB.", "pathIds": [ "home" ], "artifacts": [ "evidence/network-summary.json" ], "findingIds": [ "F27" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "not-applicable", "confidence": "high", "method": "Recon and representative-state applicability review.", "evidence": "No developer intent for agent-operated transactions or tools is declared; this emerging capability is optional for the public game directory.", "reason": "No developer intent for agent-operated transactions or tools is declared; this emerging capability is optional for the public game directory." }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "Recon and representative-state applicability review.", "evidence": "No summarisation, generation or other inference task exists where an on-device model would improve the audited core journey.", "reason": "No summarisation, generation or other inference task exists where an on-device model would improve the audited core journey." }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "pass", "confidence": "high", "method": "baseline/post heap summaries after 10 repeated scroll cycles", "evidence": "After ten full-page scroll cycles, heap changed from 5,020,189 to 5,045,313 bytes (+0.5%) and 89,392 to 89,497 nodes (+0.12%), with stable closure count.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post.heapsnapshot" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "pass", "confidence": "high", "method": "heap-summary footprint review", "evidence": "Heap summary was about 5.0MB and 89k nodes, proportionate to the image-heavy static portal, with no dominating application-object population.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "high", "method": "before/after heap constructor comparison", "evidence": "Repeated interaction left closure count unchanged at 2,856 and application constructors stable; summary showed no growing Detached* population.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post.heapsnapshot" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "F01" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "issues", "findingIds": [ "F02" ] }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "issues", "findingIds": [ "F03", "F04" ] }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "F05" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F06", "F07", "F08" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "issues", "findingIds": [ "F09", "F10" ] }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F11", "F12", "F13" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F14", "F15", "F16", "F17", "F18" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "pass" }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "F19", "F20", "F21" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F22", "F23", "F24" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "issues", "findingIds": [ "F25" ] }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "not-applicable", "reason": "The site is deliberately Japanese-only (lang=ja) and no alternate-language or bidi surface is offered; broader translation layout was judged out of scope. No dates, currencies, locale-switching or other locale-sensitive data appeared in the representative public task surfaces. No event scheduling, stored times, recurring intervals or cross-time-zone flow appeared in scope." }, { "principleId": "be-trustworthy", "expectation": "default", "status": "pass" }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F26", "F27" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "not-applicable", "reason": "No developer intent for agent-operated transactions or tools is declared; this emerging capability is optional for the public game directory. No summarisation, generation or other inference task exists where an on-device model would improve the audited core journey." }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "pass" } ], "paths": [ { "id": "home", "description": "Public mobile landing page and game portal; represents global chrome, news and game discovery.", "url": "https://gcc.sp.mbga.jp", "conditions": [ "390x844", "360x800", "prefers-color-scheme: dark", "prefers-reduced-motion: reduce", "forced-colors: active", "keyboard focus" ], "result": "issues" }, { "id": "listing", "description": "New-games listing; represents catalogue/listing template.", "url": "https://sp.mbga.jp/_game_newly_list?_from=game_top_navi", "conditions": [ "390x844" ], "result": "issues" }, { "id": "article", "description": "News topic; represents content/detail template and its promotional chrome.", "url": "https://sp.mbga.jp/_news_topic?topic_id=1901&nocnt=1", "conditions": [ "390x844" ], "result": "issues" }, { "id": "registration", "description": "Registration entry; represents the public account-start journey. Credential submission was intentionally not performed.", "url": "https://sp.mbga.jp/_reg", "conditions": [ "390x844" ], "result": "pass" }, { "id": "not-found", "description": "Unknown path; tests error and recovery behaviour.", "url": "https://sp.mbga.jp/definitely-not-a-real-page-web-uplift", "conditions": [ "390x844" ], "result": "issues" } ], "findings": [ { "id": "F01", "severity": "medium", "confidence": "high", "summary": "The site ignores the user’s dark colour-scheme preference.", "evidence": "Light and dark captures are byte-identical (254,136 bytes), and the dark capture retains white/light-grey surfaces.", "suggestedFix": "Declare color-scheme and provide preference-driven dark surface, text and control colours.", "effort": "small", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/mobile.png", "evidence/dark.png" ] }, { "id": "F02", "severity": "low", "confidence": "high", "summary": "Navigation swaps are abrupt rather than continuity-preserving.", "evidence": "Representative landing, listing, article and registration navigations expose no authored view-transition CSS or route transition; page probe found no transition rules.", "suggestedFix": "Progressively add same-origin cross-document View Transitions with a no-motion fallback.", "effort": "medium", "principleId": "implement-natural-interactions", "principleCheckId": "view-transitions", "guidanceId": "cross-document-transitions", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/page-probe.json" ] }, { "id": "F03", "severity": "low", "confidence": "high", "summary": "Long pages provide no scroll-state-aware orientation aid.", "evidence": "The 2,882px landing page uses static chrome and the CSS probe found no scroll-state query or progress treatment.", "suggestedFix": "Add a lightweight progress or scroll-state treatment where it helps users retain position.", "effort": "small", "principleId": "provide-guided-navigation", "principleCheckId": "scroll-state-aware-chrome", "guidanceId": "scroll-progress-indicator", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/layout-mobile.json", "evidence/mobile.png" ] }, { "id": "F04", "severity": "low", "confidence": "high", "summary": "Navigation does not visibly guide attention between dense sections.", "evidence": "The long landing and catalogue screens use abrupt section/page changes with no current-location cue, transition, or post-navigation highlight.", "suggestedFix": "Add current-location cues and progressive attention transitions for page/section changes.", "effort": "medium", "principleId": "provide-guided-navigation", "principleCheckId": "directs-attention", "guidanceId": "directional-navigation-transitions", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/mobile.png", "evidence/listing.png" ] }, { "id": "F05", "severity": "high", "confidence": "high", "summary": "Promotional chrome overwhelms the news article content.", "evidence": "The article first viewport is dominated by stacked game ads, anniversary promotion, AndApp transfer panel and cross-device promotion; article text is not visible in the captured viewport.", "suggestedFix": "Move article content ahead of cross-promotions and defer non-essential promotional panels.", "effort": "medium", "principleId": "maximize-content-reduce-noise", "principleCheckId": "reduced-chrome", "guidanceId": "reduce visual clutter maximize content", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/article.png" ] }, { "id": "F06", "severity": "high", "confidence": "high", "summary": "Secondary templates shrink a desktop layout instead of reflowing for mobile.", "evidence": "At 390px, the catalogue and article render multi-column desktop compositions with tiny text and controls, unlike the reflowed landing page.", "suggestedFix": "Use intrinsic responsive layouts and a readable single-column mobile composition for listing/article templates.", "effort": "large", "principleId": "adapt-to-the-form-factor", "principleCheckId": "responsive-no-horizontal-scroll", "guidanceId": "fluid-scaling", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/listing.png", "evidence/article.png" ] }, { "id": "F07", "severity": "medium", "confidence": "high", "summary": "Reusable components do not adapt at component level.", "evidence": "Stylesheet inspection found no @container rules; cards and promotional modules remain desktop-dense on narrow secondary templates.", "suggestedFix": "Introduce container queries for catalogue cards and promotional modules, with intrinsic fallback layout.", "effort": "medium", "principleId": "adapt-to-the-form-factor", "principleCheckId": "component-level-responsiveness", "guidanceId": "size-aware-styling", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/page-probe.json", "evidence/listing.png" ] }, { "id": "F08", "severity": "high", "confidence": "high", "summary": "Many interactive targets are too small for touch.", "evidence": "The interaction probe found 32 of 52 visible interactive elements under 44px in at least one dimension; footer links are only 15px high.", "suggestedFix": "Increase target boxes and spacing while preserving the visible keyboard outline.", "effort": "medium", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "guidanceId": "touch target size hover fallback pointer input focus-visible", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/interaction-probe.json" ] }, { "id": "F09", "severity": "high", "confidence": "high", "summary": "Several prominent game cards are not real links.", "evidence": "The rendered landing-page probe found ten named new-game cards with an empty href, making the discovery path dependent on script handlers and unavailable to crawlers or standard link actions.", "suggestedFix": "Give every game card a real destination href and layer tracking/launch behaviour on top.", "effort": "medium", "principleId": "support-core-task-success", "principleCheckId": "primary-flow-completion", "guidanceId": "custom-button-actions", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/page-probe.json" ] }, { "id": "F10", "severity": "high", "confidence": "high", "summary": "Unknown URLs silently show unrelated portal content instead of a recovery state.", "evidence": "The deliberately invalid URL rendered the full game portal/article-style promotional page with no 404 explanation, retry, search, or route recovery message.", "suggestedFix": "Return a correct 404 status and a concise not-found state with home, search and back actions.", "effort": "small", "principleId": "support-core-task-success", "principleCheckId": "clear-system-state-and-recovery", "guidanceId": "persistent-toast-notifications", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/not-found.png" ] }, { "id": "F11", "severity": "high", "confidence": "high", "summary": "Initial content is slow on the tested mobile load.", "evidence": "Trace measured FCP/LCP at 4.42s; Lighthouse measured FCP 4.0s and LCP 4.6s (performance 0.73).", "suggestedFix": "Reduce document latency and prioritize the LCP resource; verify LCP at or below 2.5s.", "effort": "large", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "performance", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/trace-summary.json", "evidence/lighthouse.json" ] }, { "id": "F12", "severity": "high", "confidence": "high", "summary": "Redirects, blocking resources and weak cache/font delivery delay content.", "evidence": "HAR recorded two redirects and five render-blocking candidates; Lighthouse estimates 1.49s redirect, 1.2s render-blocking and 1.1MB cache-lifetime savings.", "suggestedFix": "Remove redirect hops, shorten critical chains, set effective cache lifetimes and use non-blocking font/resource delivery.", "effort": "large", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-preload-priority", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/network-summary.json", "evidence/lighthouse.json" ] }, { "id": "F13", "severity": "medium", "confidence": "high", "summary": "The landing page ships avoidable unused CSS and JavaScript.", "evidence": "Lighthouse estimates 35KiB unused CSS and 42KiB unused JavaScript on a simple portal page.", "suggestedFix": "Split legacy bundles by page need and remove unused rules/modules.", "effort": "medium", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "identify-heavy-scripts", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/lighthouse.json" ] }, { "id": "F14", "severity": "high", "confidence": "high", "summary": "Important images and controls lack accessible alternatives.", "evidence": "Image audit found 44 of 45 images without alt text; page probe also found an unnamed button and an unlabelled visible textarea.", "suggestedFix": "Provide meaningful alt text for content images, empty alt for decoration, and accessible names/labels for controls.", "effort": "medium", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/images.json", "evidence/page-probe.json" ] }, { "id": "F15", "severity": "high", "confidence": "high", "summary": "Footer links fail minimum text contrast.", "evidence": "Lighthouse measured 2.86:1 for 11px blue footer links on #d0d0d0, below the required 4.5:1.", "suggestedFix": "Use a darker link colour and re-test all states to at least WCAG AA contrast.", "effort": "small", "principleId": "be-inclusive", "principleCheckId": "sufficient-contrast", "guidanceId": "accessibility", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/lighthouse.json" ] }, { "id": "F16", "severity": "medium", "confidence": "high", "summary": "The page lacks main and navigation landmarks.", "evidence": "The interaction probe found zero main and zero navigation landmarks; Lighthouse failed landmark-one-main. Keyboard outline was visible, but structure remains weak.", "suggestedFix": "Use main/nav/header/footer landmarks and preserve the existing visible focus treatment.", "effort": "small", "principleId": "be-inclusive", "principleCheckId": "structure-and-focus", "guidanceId": "accessibility", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/interaction-probe.json", "evidence/lighthouse.json" ] }, { "id": "F17", "severity": "high", "confidence": "high", "summary": "Text becomes uncomfortably small on secondary mobile templates.", "evidence": "At 390px, listing and article templates retain dense desktop columns and tiny card/caption text that is difficult to read.", "suggestedFix": "Reflow to a readable mobile measure and use fluid type with an accessible minimum size.", "effort": "medium", "principleId": "be-inclusive", "principleCheckId": "legible-text", "guidanceId": "improve-text-layout-and-legibility", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/listing.png", "evidence/article.png" ] }, { "id": "F18", "severity": "high", "confidence": "high", "summary": "The viewport disables pinch zoom and many targets are undersized.", "evidence": "Viewport is width=device-width, maximum-scale=1.0, user-scalable=no; Lighthouse failed meta-viewport and the target probe found 32 under 44px.", "suggestedFix": "Remove user-scalable=no/maximum-scale and make controls comfortably touchable after zoom/reflow.", "effort": "small", "principleId": "be-inclusive", "principleCheckId": "zoom-reflow-targets-and-media", "guidanceId": "fluid-scaling", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/interaction-probe.json", "evidence/lighthouse.json" ] }, { "id": "F19", "severity": "high", "confidence": "high", "summary": "Prominent links are not crawlable and scaling is disabled.", "evidence": "Lighthouse failed crawlable-anchors; the DOM probe found multiple visible game cards with empty href values, and viewport disables scaling.", "suggestedFix": "Provide valid href destinations and an unrestricted responsive viewport.", "effort": "medium", "principleId": "be-discoverable", "principleCheckId": "crawlable-and-mobile-friendly", "guidanceId": "html", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/page-probe.json", "evidence/lighthouse.json" ] }, { "id": "F20", "severity": "medium", "confidence": "high", "summary": "Canonical and sitemap signals are unreliable.", "evidence": "The public landing page has no canonical link; /sitemap.xml returns a normal HTML marketing page rather than an XML sitemap.", "suggestedFix": "Publish a canonical URL and a valid XML sitemap referenced from robots.txt.", "effort": "small", "principleId": "be-discoverable", "principleCheckId": "canonical-and-indexing-signals", "guidanceId": "html", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/page-probe.json", "evidence/sitemap-response.html", "evidence/robots.txt" ] }, { "id": "F21", "severity": "medium", "confidence": "high", "summary": "Entity and social-preview metadata is incomplete.", "evidence": "The page has no JSON-LD, og:description is empty, and no canonical URL is supplied despite representing a public game portal.", "suggestedFix": "Add accurate Organization/WebSite or collection JSON-LD and complete canonical Open Graph metadata.", "effort": "small", "principleId": "be-discoverable", "principleCheckId": "structured-and-shareable-metadata", "guidanceId": "html", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/interaction-probe.json" ] }, { "id": "F22", "severity": "critical", "confidence": "high", "summary": "Security headers and cookie protections are missing.", "evidence": "HTTPS is used, but CSP, HSTS, nosniff, frame protection, Referrer-Policy and Permissions-Policy are absent. All three cookies lack Secure and use SameSite=None.", "suggestedFix": "Set Secure/SameSite cookie attributes and deploy CSP, HSTS, nosniff and framing protections.", "effort": "medium", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/headers.json", "evidence/cookies.json" ] }, { "id": "F23", "severity": "medium", "confidence": "high", "summary": "The account journey exposes no phishing-resistant sign-in option.", "evidence": "The public registration entry offers only registration and login links; page/source probes found no WebAuthn/passkey capability. No permission prompt fired on load.", "suggestedFix": "Offer passkey registration and authentication alongside recovery-compatible existing methods.", "effort": "large", "principleId": "be-private-and-secure", "principleCheckId": "in-context-permissions-and-modern-auth", "guidanceId": "passkeys", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/registration.png", "evidence/registration-probe.json" ] }, { "id": "F24", "severity": "high", "confidence": "high", "summary": "Browser-enforced defensive policies are absent.", "evidence": "Header evidence found no HSTS, CSP/frame-ancestors or X-Frame-Options, Referrer-Policy, Permissions-Policy or nosniff.", "suggestedFix": "Deploy a restrictive policy set, beginning with CSP report-only, HSTS and frame-ancestors.", "effort": "medium", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "guidanceId": "security", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/headers.json" ] }, { "id": "F25", "severity": "high", "confidence": "high", "summary": "Route failure has no explicit recovery state.", "evidence": "A deliberately unknown path rendered unrelated portal content with no error status/message or recovery action visible.", "suggestedFix": "Return intentional HTTP errors and render a useful recovery screen.", "effort": "small", "principleId": "be-resilient", "principleCheckId": "network-and-http-failure-states", "guidanceId": "persistent-toast-notifications", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/not-found.png" ] }, { "id": "F26", "severity": "high", "confidence": "high", "summary": "Image delivery is substantially unoptimised.", "evidence": "Image audit found 39 legacy PNG/GIF assets, 16 below-fold images without lazy loading and no modern-format images; Lighthouse estimates 573KiB image savings.", "suggestedFix": "Convert suitable assets to AVIF/WebP, provide responsive sources and lazy-load below-fold content.", "effort": "medium", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "deliver-optimized-decorative-images", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/images.json", "evidence/lighthouse.json" ] }, { "id": "F27", "severity": "medium", "confidence": "high", "summary": "Decorative image sprites dominate a 1.2MB landing-page transfer.", "evidence": "HAR recorded 1,197,467 transferred bytes, including 1,038,457 image bytes; four legacy sprites alone total about 670KiB.", "suggestedFix": "Replace legacy sprite sheets with smaller per-use modern assets and set a page-weight budget.", "effort": "medium", "principleId": "be-sustainable", "principleCheckId": "third-party-and-media-budget", "guidanceId": "deliver-optimized-decorative-images", "pathId": "home", "url": "https://gcc.sp.mbga.jp", "artifacts": [ "evidence/network-summary.json" ] } ], "taskList": [ { "id": "T1", "title": "Deploy security headers and secure cookie attributes", "priority": 1, "findingIds": [ "F22", "F24" ], "guidanceId": "security", "status": "open" }, { "id": "T2", "title": "Reflow listing and article templates for readable mobile use and zoom", "priority": 2, "findingIds": [ "F06", "F07", "F17", "F18" ], "guidanceId": "fluid-scaling", "status": "open" }, { "id": "T3", "title": "Put article content before promotional panels", "priority": 3, "findingIds": [ "F05" ], "guidanceId": "reduce visual clutter maximize content", "status": "open" }, { "id": "T4", "title": "Improve semantic names, landmarks, contrast and touch targets", "priority": 4, "findingIds": [ "F08", "F14", "F15", "F16" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T5", "title": "Remove redirects and optimize critical/cache/font delivery", "priority": 5, "findingIds": [ "F11", "F12", "F13" ], "guidanceId": "optimize-preload-priority", "status": "open" }, { "id": "T6", "title": "Give all game cards crawlable href destinations", "priority": 6, "findingIds": [ "F09", "F19" ], "guidanceId": "html", "status": "open" }, { "id": "T7", "title": "Modernize and lazy-load image assets", "priority": 7, "findingIds": [ "F26", "F27" ], "guidanceId": "deliver-optimized-decorative-images", "status": "open" }, { "id": "T8", "title": "Return a clear, actionable 404 state", "priority": 8, "findingIds": [ "F10", "F25" ], "guidanceId": "persistent-toast-notifications", "status": "open" }, { "id": "T9", "title": "Complete canonical, sitemap and structured metadata", "priority": 9, "findingIds": [ "F20", "F21" ], "guidanceId": "html", "status": "open" }, { "id": "T10", "title": "Add preference-driven dark theme and progressive navigation transitions", "priority": 10, "findingIds": [ "F01", "F02", "F03", "F04" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "T11", "title": "Offer passkey-based account authentication", "priority": 11, "findingIds": [ "F23" ], "guidanceId": "passkeys", "status": "open" } ], "budget": { "pathCount": 5, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-22T19-57-47-342Z" }