{ "url": "https://ja.wikipedia.org", "auditedAt": "2026-07-23T13:20:08Z", "mode": "report", "status": "completed", "statusDetail": "Coverage-complete representative audit of four public templates/journeys. Not covered: authenticated editing, account creation, donation/payment completion, media playback, and every language/template variant because they require credentials, external transactions, or duplicate the selected archetypes.", "page": { "appType": "mpa", "framework": "MediaWiki 1.47 / Vector 2022", "notes": "Server-rendered Japanese encyclopedia. Public reading, search and sign-in were sampled; source code was not provided." }, "evidenceUsed": [ "screenshot", "dom", "evaluate-probe", "layout-metrics", "trace", "har", "discoverability", "headers", "cookies", "trackers", "secrets", "images", "heap-summary methodology", "Lighthouse", "Modern Web Guidance 0.0.172" ], "guidanceConsulted": [ "accessibility", "accessible-error-announcement", "adapt-scrollbar-to-contrast-preferences", "agentic-forms", "agentic-javascript-tools", "anchor-positioning-tab-underline", "animate-element-entry-exit", "animate-to-from-top-layer", "animate-to-intrinsic-sizes", "animated-select-picker", "apply-webgl-shaders", "autofill-address-form", "autofill-highlight-inputs", "autofill-payment-form", "autofill-sign-in-form", "autofill-sign-up-form", "batch-analytics-events", "brand-consistent-forms", "branded-select-styling", "break-up-long-tasks", "calculate-event-differentials", "calculate-total-foreground-time", "calculate-with-intrinsic-sizes", "capture-location-agnostic-data", "carousel-slide-effects", "carousel-snap-highlights", "child-state-based-styling", "complex-shapes", "component-specific-light-dark-theme", "conditional-async-dependencies", "consistent-cross-document-transitions", "content-based-styling", "coordinate-global-events", "cross-document-transitions", "css", "css-layout", "custom-select-picker-layouts", "customize-scrollbar-color-and-thickness", "dark-mode", "declarative-dialog-popover-control", "defer-rendering-heavy-content", "defer-work-until-scroll-ends", "deliver-optimized-decorative-images", "deprioritize-background-fetches", "design-token-reactivity", "detect-initial-visibility-state", "directional-navigation-transitions", "dynamic-sibling-animations", "dynamic-sibling-styling", "efficient-background-processing", "export-html-media-from-canvas", "expose-canvas-content-to-browser-features", "faster-spa-view-transitions", "flicker-free-client-side-ab-testing", "fluid-scaling", "form-fields-automatically-fit-contents", "format-human-readable-durations", "forms", "full-session-analytics", "group-element-transitions", "highlight-text-ranges", "html", "identify-heavy-scripts", "identify-inp-causes", "improve-next-page-load-performance", "improve-text-layout-and-legibility", "individual-transform-properties", "interactions-in-complex-layouts", "interactive-content-in-3d-scenes", "interactive-content-reveal", "interest-triggered-action-previews", "interest-triggered-tooltips", "language-detection", "language-model", "light-dismiss-a-dialog", "manage-recurring-intervals", "model-partial-time-concepts", "move-dom-element-without-losing-state", "navigation-drawer", "optimize-image-priority", "optimize-preload-priority", "optimize-script-priority", "overflow-clipping-control", "parallax-scroll-effects", "passkey-authentication", "passkey-conditional-create", "passkey-management", "passkey-reauthentication", "passkey-registration", "passkeys", "performance", "persistent-app-tours", "persistent-toast-notifications", "persistent-top-layer-ui", "physics-based-easing", "platform-controls-dismiss-dialog", "position-aware-tooltips", "precise-text-alignment", "prevent-text-wrapping", "privacy", "pull-to-reveal", "reduce-style-repetition", "required-field-feedback", "resilient-context-menus-and-nested-dropdowns", "resolution-optimized-pseudo-elements", "rich-media-picker", "same-document-transitions", "schedule-tasks-by-priority", "scroll-entry-exit-effects", "scroll-position-aware-elements", "scroll-progress-indicator", "scroll-snap-realtime-feedback", "scroll-snap-state-sync", "scroll-target-on-load", "scrollability-affordance-hints", "scrollytelling", "search-hidden-content", "security", "select-menu-interaction", "sequence-distributed-events", "shaped-cutouts", "shrinking-header-on-scroll", "size-aware-styling", "soft-edge-content-fade", "stabilize-reactive-state", "stack-drill-down", "style-parent-with-has", "summarizer", "support-global-calendar-systems", "swipe-to-remove", "translator", "validate-input-after-interaction", "visually-stable-font-fallbacks", "visually-stable-mixed-fonts", "visually-texture-content", "webmcp" ], "artifacts": [ { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "Home at desktop viewport." }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "Home at 360x800; fixed-width page is scaled down.", "condition": "viewport 360x800", "findingIds": [ "F03", "F04" ] }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "Home remains light under dark preference.", "condition": "prefers-color-scheme: dark", "findingIds": [ "F01" ] }, { "type": "screenshot", "path": "evidence/article-desktop.png", "caption": "Representative long article." }, { "type": "screenshot", "path": "evidence/article-mobile.png", "caption": "Long article scaled to an 1120px CSS viewport.", "condition": "viewport 360x800", "findingIds": [ "F03", "F04" ] }, { "type": "screenshot", "path": "evidence/search.png", "caption": "Completed search journey." }, { "type": "screenshot", "path": "evidence/login.png", "caption": "Login form." }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "Rendered home DOM and styles.", "findingIds": [ "F01" ] }, { "type": "dom", "path": "evidence/article-dom.json", "caption": "Article DOM and selected computed styles." }, { "type": "other", "path": "evidence/article-probe.json", "caption": "Document, CSS, focus, target, metadata and form probe.", "findingIds": [ "F02", "F03", "F04", "F05", "F08", "F11" ] }, { "type": "other", "path": "evidence/article-reduced-motion.json", "caption": "Reduced-motion animation probe.", "condition": "prefers-reduced-motion: reduce" }, { "type": "other", "path": "evidence/login-probe.json", "caption": "Login labels, autocomplete and WebAuthn probe." }, { "type": "layout", "path": "evidence/home-layout.json", "caption": "Home layout shift, long-task and overflow metrics." }, { "type": "layout", "path": "evidence/home-layout-mobile.json", "caption": "Home layout at 360x800 reports a 1120px layout viewport.", "condition": "viewport 360x800", "findingIds": [ "F03" ] }, { "type": "trace", "path": "evidence/home-trace.json", "caption": "DevTools performance trace." }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "Compact load timing and main-thread summary.", "findingIds": [ "F06" ] }, { "type": "har", "path": "evidence/home.har", "caption": "HAR 1.2 network capture.", "findingIds": [ "F07" ] }, { "type": "har-summary", "path": "evidence/home-summary.json", "caption": "Compact network totals, dependency and resource summary.", "findingIds": [ "F07", "F14" ] }, { "type": "discoverability", "path": "evidence/home-discoverability.json", "caption": "Raw HTML versus rendered content comparison." }, { "type": "screenshot", "path": "evidence/home-discoverability-rendered.png", "caption": "Browser view with JavaScript." }, { "type": "screenshot", "path": "evidence/home-discoverability-crawler.png", "caption": "Crawler/no-JavaScript view." }, { "type": "other", "path": "evidence/home-headers.json", "caption": "Security header probe.", "findingIds": [ "F12", "F13" ] }, { "type": "other", "path": "evidence/home-cookies.json", "caption": "Cookie security probe.", "findingIds": [ "F12" ] }, { "type": "other", "path": "evidence/home-trackers.json", "caption": "Third-party and tracker probe." }, { "type": "other", "path": "evidence/home-secrets.json", "caption": "Client-side secrets scan." }, { "type": "other", "path": "evidence/home-images.json", "caption": "Image dimensions, loading, format and alt probe.", "findingIds": [ "F08", "F14" ] }, { "type": "lighthouse", "path": "evidence/lighthouse-home.json", "caption": "Lighthouse home audit.", "findingIds": [ "F05", "F08", "F09", "F10", "F11" ] }, { "type": "lighthouse", "path": "evidence/lighthouse-article.json", "caption": "Lighthouse long-article audit.", "findingIds": [ "F05", "F06", "F07", "F08", "F10", "F11" ] }, { "type": "heap", "path": "evidence/home-heap-baseline.heapsnapshot", "caption": "Home baseline heap snapshot." }, { "type": "heap", "path": "evidence/home-heap-post.heapsnapshot", "caption": "Home heap after 20 main-menu toggles." }, { "type": "heap", "path": "evidence/article-heap-baseline.heapsnapshot", "caption": "Long-article baseline heap snapshot." }, { "type": "other", "path": "evidence/http-special-probe.json", "caption": "robots.txt, sitemap and deliberate 404 responses." } ], "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": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "The screenshot captured with prefers-color-scheme: dark remains a white, light-themed page, despite the stylesheet containing prefers-color-scheme rules.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F01" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Reduced-motion emulation matched true; the article reported zero active animations and zero smooth-scrolling elements.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Lighthouse color contrast passed on both templates; the page uses native controls and high-contrast text in captured states.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "issues", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "The article probe found no view-transition CSS signal, while article navigation is a core cross-document interaction.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F02" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "CSS inspection found no scroll animation timeline and trace/layout evidence found no sustained scroll-driven main-thread work.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "The representative browse surfaces use native scrolling and links, with no custom pointermove or swipe interaction fighting platform behavior.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "The long article exposes a persistent table of contents and current-page chrome; article screenshots and DOM show orientation controls remain available.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Observed menus and appearance controls remain attached to their triggers in desktop captures with no clipping or drift.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Active page tabs use underline/state styling, the skip link focuses visibly, and search navigation lands on a clearly titled article.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "All initial screenshots show content immediately with no modal, consent wall, interstitial or obscuring banner.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "DOM inspection found no modal flows on audited read surfaces; disclosures are native labelled checkbox/menu controls with clear close state.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Desktop screenshots devote the main region to encyclopedia content; controls are compact and peripheral.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "issues", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "At a 360x800 emulated viewport, layout reported clientWidth and scrollWidth of 1120 and the DOM probe found meta viewport content=\"width=1120\"; screenshots show tiny desktop columns.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F03" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "issues", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "The CSS probe found no @container rules, and the 360px screenshots show the desktop composition uniformly scaled rather than cards and infoboxes recomposing.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F04" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "issues", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Lighthouse failed target-size on the article; the probe measured theme radios at 20x20px and repeated visible controls at 22x22px.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F05" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Home and article screenshots have clear headings, descriptive lead content, search, and obvious blue article links.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "The search journey for ウェブ completed and resolved to the World Wide Web article with coherent title and content.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Search visibly lands on a result article; the intentionally missing route returned an explicit HTTP 404 document rather than a blank shell.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Lighthouse measured article LCP at 6.0s, FCP at 3.9s and performance score 0.64; the lighter home trace measured LCP 1.05s, showing the article template is the high-risk path.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F06" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Layout measured CLS 0.0023 on home and Lighthouse measured 0.022, both within the good range.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Home trace found one 98ms long task and 48ms TBT; article Lighthouse TBT was 150ms, below the 200ms lab proxy threshold.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "HAR recorded 644,433 transferred bytes, compressed text, no HTTP errors and a short set of three parser stylesheets; delivery was functional though optimization opportunities are separately reported.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Lighthouse estimated 123 KiB unused JavaScript and 64 KiB unused CSS on the article; HAR shows one ResourceLoader script transferring 259,136 bytes.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F07" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Lighthouse failed image-alt and label on home, and image-alt, label and link-name on the article; the image probe counted four images without alt and the DOM probe found an unlabeled secondary search input.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F08" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "issues", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Lighthouse failed link-in-text-block on the home page even though its numeric color-contrast audit passed.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F09" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Lighthouse heading-order and landmark audits passed; focused skip link had a visible 2px solid outline.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Desktop article and login captures use readable line height, clear Japanese typography and stable content alignment.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "The fixed-width mobile scaling and Lighthouse target-size failure make zoom/reflow and touch use materially weaker.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Lighthouse errors-in-console passed on home and article; no uncaught load error was observed.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "DOM reported HTML doctype and UTF-8; Lighthouse image aspect-ratio passed and images are served as sized thumbnails.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "issues", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Lighthouse failed valid-source-maps and inspector-issues on both home and article templates.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F10" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "issues", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Lighthouse failed meta-description on home and article, and the article DOM probe returned description: null.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F11" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Discoverability found 100% rendered-word coverage and real href links; robots.txt returned 200. Mobile viewport quality is reported under form-factor.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Both tested public pages returned 200, exposed self-canonicals and hreflang passed in Lighthouse; robots.txt was available.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Article probe found one JSON-LD block and five Open Graph properties aligned with the visible article.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "The headers primitive found script-src unsafe-inline and unsafe-eval; the cookies primitive found jawikimwuser-sessionId without Secure or HttpOnly and reported SameSite=None.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F12" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Tracker capture found no known tracking domains; third-party requests were Wikimedia-owned upload/auth/meta services and secrets scan found no credentials.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "No permission prompt appeared on load; login uses autocomplete=\"username webauthn\" and current-password for conditional passkey-capable authentication.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "The headers primitive found no frame-ancestors/X-Frame-Options, Permissions-Policy, or HTTP Referrer-Policy; only in-document referrer metadata was present.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F13" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Discoverability measured 100% content visibility without JavaScript with title and H1 in raw HTML; crawler and browser captures both contain content.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Menus, navigation and article content rendered without cut-off overlays or runtime errors on the exercised routes.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "not-applicable", "confidence": "high", "method": "Recon and applicability judgement", "evidence": "Wikipedia is a public content MPA rather than an install-oriented application; offline installation is not necessary for the audited browse/search journey.", "reason": "Wikipedia is a public content MPA rather than an install-oriented application; offline installation is not necessary for the audited browse/search journey." }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "A deliberately missing path returned a styled HTTP 404 document with a clear Not Found state rather than a misleading success or shell.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "DOM reported html lang=\"ja\" and dir=\"ltr\"; CSS probe found logical inline/block properties and 328 language variants are exposed.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "The Japanese main and article templates render dates, counts and language labels in Japanese locale conventions; no hand-rolled client formatting error was observed.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "not-applicable", "confidence": "high", "method": "Recon and applicability judgement", "evidence": "The audited read, search and sign-in surfaces expose no scheduled event or time-zone-sensitive transaction to test.", "reason": "The audited read, search and sign-in surfaces expose no scheduled event or time-zone-sensitive transaction to test." }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "No ads, consent nag, forced continuity, disguised controls or confirmshaming appeared across home, article, search and login.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "The audited search and login forms use clear persistent labels and predictable actions; no premature error state appeared before interaction.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Login probe found username webauthn and current-password autocomplete tokens and visible associated labels.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Login is plainly labelled, offers password recovery and help, and does not introduce upsells or hidden commitments.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "The images primitive found 25 below-fold images without loading=\"lazy\" among 32 images; HAR recorded 38 image requests and 215,393 transferred image bytes.", "pathIds": [ "home", "article", "search", "login" ], "findingIds": [ "F14" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Trace found only one long task on home and no autoplay/background media; network activity settled after load.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "HAR total was 644KB with no audio/video and third-party bytes were 200KB from Wikimedia-owned infrastructure, proportionate to a media-rich portal.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "not-applicable", "confidence": "high", "method": "Recon and applicability judgement", "evidence": "The emerging WebMCP capability is not an intended surface of the audited public encyclopedia experience; machine-readable HTML and metadata were judged under discoverability.", "reason": "The emerging WebMCP capability is not an intended surface of the audited public encyclopedia experience; machine-readable HTML and metadata were judged under discoverability." }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "Recon and applicability judgement", "evidence": "No user-facing summarisation or language-model feature is offered on these surfaces, so on-device inference has no applicable task.", "reason": "No user-facing summarisation or language-model feature is offered on these surfaces, so on-device inference has no applicable task." }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "After toggling the real main-menu control 20 times, heap node count changed from 184,961 to 184,512 and self size from 14,781,945 to 14,783,113 bytes, showing no retained growth trend.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Home heap was 14.8MB self size / 184,961 nodes and the much longer article was 34.1MB / 485,053 nodes, proportionate to the rendered content.", "pathIds": [ "home", "article", "search", "login" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "high", "method": "Screenshots, DOM/evaluate probes and relevant objective evidence across representative paths", "evidence": "Repeated menu interaction reduced node count by 449 with only 1,168 bytes self-size delta; no accumulating detached-node population was indicated.", "pathIds": [ "home", "article", "search", "login" ] } ], "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": "pass" }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "pass" }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F03", "F04", "F05" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "pass" }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F06", "F07" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F08", "F09" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "F10" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "F11" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F12", "F13" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "pass" }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "pass" }, { "principleId": "be-trustworthy", "expectation": "default", "status": "pass" }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F14" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "not-applicable", "reason": "All checks were judged not applicable to the audited public encyclopedia surfaces." }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "pass" } ], "paths": [ { "id": "home", "description": "Entry page and dense portal template; tested as the primary orientation and browse surface.", "url": "https://ja.wikipedia.org/wiki/%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8", "conditions": [ "desktop", "viewport 360x800", "prefers-color-scheme: dark", "no-JavaScript crawler" ], "result": "issues" }, { "id": "article", "description": "Representative long-form encyclopedia article with infobox, table of contents, media, citations and thousands of links.", "url": "https://ja.wikipedia.org/wiki/%E6%97%A5%E6%9C%AC", "conditions": [ "desktop", "viewport 360x800", "prefers-reduced-motion: reduce", "keyboard focus", "repeated menu interaction" ], "result": "issues" }, { "id": "search", "description": "Primary search journey, using a query for ウェブ; it resolved predictably to the World Wide Web article.", "url": "https://ja.wikipedia.org/w/index.php?search=%E3%82%A6%E3%82%A7%E3%83%96&title=%E7%89%B9%E5%88%A5%3A%E6%A4%9C%E7%B4%A2", "conditions": [ "desktop" ], "result": "pass" }, { "id": "login", "description": "Representative account form for labels, autocomplete, authentication affordances and humane interaction.", "url": "https://ja.wikipedia.org/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%83%AD%E3%82%B0%E3%82%A4%E3%83%B3&returnto=%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8", "conditions": [ "desktop", "keyboard focus" ], "result": "issues" } ], "findings": [ { "id": "F01", "pathId": "home", "url": "https://ja.wikipedia.org/wiki/%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "The default experience does not follow the operating-system dark preference.", "evidence": "The screenshot captured with prefers-color-scheme: dark remains a white, light-themed page, despite the stylesheet containing prefers-color-scheme rules.", "artifacts": [ "evidence/home-dark.png", "evidence/home-dom.json" ], "suggestedFix": "Make the OS theme option the effective default, declare color-scheme: light dark, and ensure all Vector and content surfaces use preference-aware color tokens.", "effort": "medium" }, { "id": "F02", "pathId": "article", "url": "https://ja.wikipedia.org/wiki/%E6%97%A5%E6%9C%AC", "principleId": "implement-natural-interactions", "principleCheckId": "view-transitions", "guidanceId": "cross-document-transitions", "guidanceCategory": "user-experience", "severity": "low", "confidence": "high", "summary": "Cross-document article and search navigation swaps abruptly.", "evidence": "The article probe found no view-transition CSS signal, while article navigation is a core cross-document interaction.", "artifacts": [ "evidence/article-probe.json" ], "suggestedFix": "Progressively add @view-transition { navigation: auto } and stable view-transition-name values for shared page chrome, with reduced-motion behavior preserved.", "effort": "small" }, { "id": "F03", "pathId": "article", "url": "https://ja.wikipedia.org/wiki/%E6%97%A5%E6%9C%AC", "principleId": "adapt-to-the-form-factor", "principleCheckId": "responsive-no-horizontal-scroll", "guidanceId": "fluid-scaling", "guidanceCategory": "css", "severity": "high", "confidence": "high", "summary": "Mobile pages use a fixed 1120 CSS-pixel layout and are scaled down instead of reflowing.", "evidence": "At a 360x800 emulated viewport, layout reported clientWidth and scrollWidth of 1120 and the DOM probe found meta viewport content=\"width=1120\"; screenshots show tiny desktop columns.", "artifacts": [ "evidence/home-layout-mobile.json", "evidence/home-mobile.png", "evidence/article-mobile.png", "evidence/article-probe.json" ], "suggestedFix": "Use width=device-width, initial-scale=1 and responsive intrinsic layouts so article, infobox and portal columns reflow at narrow widths.", "effort": "large" }, { "id": "F04", "pathId": "home", "url": "https://ja.wikipedia.org/wiki/%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8", "principleId": "adapt-to-the-form-factor", "principleCheckId": "component-level-responsiveness", "guidanceId": "size-aware-styling", "guidanceCategory": "css", "severity": "medium", "confidence": "medium", "summary": "Reusable portal and article components do not adapt independently to their available width.", "evidence": "The CSS probe found no @container rules, and the 360px screenshots show the desktop composition uniformly scaled rather than cards and infoboxes recomposing.", "artifacts": [ "evidence/article-probe.json", "evidence/home-mobile.png", "evidence/article-mobile.png" ], "suggestedFix": "Give reused content regions containment and add size-aware container-query layouts, retaining media-query fallbacks where needed.", "effort": "large" }, { "id": "F05", "pathId": "article", "url": "https://ja.wikipedia.org/wiki/%E6%97%A5%E6%9C%AC", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "high", "summary": "Many article controls and links are too small for reliable touch input.", "evidence": "Lighthouse failed target-size on the article; the probe measured theme radios at 20x20px and repeated visible controls at 22x22px.", "artifacts": [ "evidence/lighthouse-article.json", "evidence/article-probe.json" ], "suggestedFix": "Increase interactive hit areas and spacing to at least the WCAG target-size baseline without reducing information density for pointer users.", "effort": "medium" }, { "id": "F06", "pathId": "article", "url": "https://ja.wikipedia.org/wiki/%E6%97%A5%E6%9C%AC", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "performance", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "The representative long article misses a good loading-performance bar.", "evidence": "Lighthouse measured article LCP at 6.0s, FCP at 3.9s and performance score 0.64; the lighter home trace measured LCP 1.05s, showing the article template is the high-risk path.", "artifacts": [ "evidence/lighthouse-article.json", "evidence/home-trace-summary.json" ], "suggestedFix": "Profile the article LCP breakdown, prioritize its LCP resource, shorten dependency chains and defer non-critical modules until after content paint.", "effort": "large" }, { "id": "F07", "pathId": "article", "url": "https://ja.wikipedia.org/wiki/%E6%97%A5%E6%9C%AC", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "identify-heavy-scripts", "guidanceCategory": "performance", "severity": "medium", "confidence": "high", "summary": "Pages ship substantial JavaScript and CSS unused during initial rendering.", "evidence": "Lighthouse estimated 123 KiB unused JavaScript and 64 KiB unused CSS on the article; HAR shows one ResourceLoader script transferring 259,136 bytes.", "artifacts": [ "evidence/lighthouse-article.json", "evidence/home-summary.json", "evidence/home.har" ], "suggestedFix": "Split ResourceLoader modules by surface and interaction, conditionally load editing, preview and account features, and trim unused style modules from reader pages.", "effort": "large" }, { "id": "F08", "pathId": "home", "url": "https://ja.wikipedia.org/wiki/%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Some images, links and form controls lack accessible alternatives or labels.", "evidence": "Lighthouse failed image-alt and label on home, and image-alt, label and link-name on the article; the image probe counted four images without alt and the DOM probe found an unlabeled secondary search input.", "artifacts": [ "evidence/lighthouse-home.json", "evidence/lighthouse-article.json", "evidence/home-images.json", "evidence/article-probe.json" ], "suggestedFix": "Add meaningful alt text or explicit empty alt for decorative images, associate every search field with a label or accessible name, and name image-only links.", "effort": "medium" }, { "id": "F09", "pathId": "home", "url": "https://ja.wikipedia.org/wiki/%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8", "principleId": "be-inclusive", "principleCheckId": "sufficient-contrast", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "high", "summary": "Inline links rely on color alone for identification.", "evidence": "Lighthouse failed link-in-text-block on the home page even though its numeric color-contrast audit passed.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Add a non-color affordance such as an underline for inline links, with clear hover and focus states.", "effort": "small" }, { "id": "F10", "pathId": "home", "url": "https://ja.wikipedia.org/wiki/%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8", "principleId": "follow-best-practices", "principleCheckId": "browser-platform-hygiene", "guidanceId": "html", "guidanceCategory": "html", "severity": "low", "confidence": "high", "summary": "Production JavaScript lacks usable source maps and triggers DevTools inspector issues.", "evidence": "Lighthouse failed valid-source-maps and inspector-issues on both home and article templates.", "artifacts": [ "evidence/lighthouse-home.json", "evidence/lighthouse-article.json" ], "suggestedFix": "Publish correct production source maps where policy permits and resolve the specific Chrome Issues entries in a development capture.", "effort": "medium" }, { "id": "F11", "pathId": "home", "url": "https://ja.wikipedia.org/wiki/%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8", "principleId": "be-discoverable", "principleCheckId": "title-and-description", "severity": "medium", "confidence": "high", "summary": "Public pages omit meta descriptions.", "evidence": "Lighthouse failed meta-description on home and article, and the article DOM probe returned description: null.", "artifacts": [ "evidence/lighthouse-home.json", "evidence/lighthouse-article.json", "evidence/article-probe.json" ], "suggestedFix": "Generate concise, page-specific descriptions from the lead summary while preserving editorial controls and escaping.", "effort": "medium" }, { "id": "F12", "pathId": "home", "url": "https://ja.wikipedia.org/wiki/%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "guidanceCategory": "security", "severity": "high", "confidence": "high", "summary": "The CSP permits unsafe script execution modes and one session-named cookie is not Secure.", "evidence": "The headers primitive found script-src unsafe-inline and unsafe-eval; the cookies primitive found jawikimwuser-sessionId without Secure or HttpOnly and reported SameSite=None.", "artifacts": [ "evidence/home-headers.json", "evidence/home-cookies.json" ], "suggestedFix": "Move toward nonce/hash-based CSP without unsafe-eval, and set Secure, HttpOnly where script access is unnecessary, and the narrowest viable SameSite value on session cookies.", "effort": "large" }, { "id": "F13", "pathId": "home", "url": "https://ja.wikipedia.org/wiki/%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "guidanceId": "security", "guidanceCategory": "security", "severity": "medium", "confidence": "high", "summary": "Several browser-enforced policy headers are absent.", "evidence": "The headers primitive found no frame-ancestors/X-Frame-Options, Permissions-Policy, or HTTP Referrer-Policy; only in-document referrer metadata was present.", "artifacts": [ "evidence/home-headers.json", "evidence/home-recon.json" ], "suggestedFix": "Add frame-ancestors, a least-privilege Permissions-Policy and an HTTP Referrer-Policy appropriate to cross-wiki navigation.", "effort": "medium" }, { "id": "F14", "pathId": "home", "url": "https://ja.wikipedia.org/wiki/%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "optimize-image-priority", "guidanceCategory": "performance", "severity": "medium", "confidence": "high", "summary": "Most below-fold home images are fetched eagerly.", "evidence": "The images primitive found 25 below-fold images without loading=\"lazy\" among 32 images; HAR recorded 38 image requests and 215,393 transferred image bytes.", "artifacts": [ "evidence/home-images.json", "evidence/home-summary.json" ], "suggestedFix": "Lazy-load below-fold thumbnails while keeping the actual LCP image eager and fetch-prioritized; continue serving responsive thumbnail sizes.", "effort": "small" } ], "taskList": [ { "id": "T01", "title": "Replace the fixed 1120px mobile viewport with a reflowing responsive layout", "priority": 1, "findingIds": [ "F03", "F04", "F05" ], "guidanceId": "fluid-scaling", "status": "open" }, { "id": "T02", "title": "Improve long-article LCP and conditionally load reader-page code", "priority": 2, "findingIds": [ "F06", "F07" ], "guidanceId": "performance", "status": "open" }, { "id": "T03", "title": "Repair accessible names, labels, image alternatives and inline-link affordances", "priority": 3, "findingIds": [ "F08", "F09" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T04", "title": "Harden CSP, cookies and browser policy headers", "priority": 4, "findingIds": [ "F12", "F13" ], "guidanceId": "security", "status": "open" }, { "id": "T05", "title": "Honor the operating-system color scheme by default", "priority": 5, "findingIds": [ "F01" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "T06", "title": "Lazy-load non-critical portal imagery", "priority": 6, "findingIds": [ "F14" ], "guidanceId": "optimize-image-priority", "status": "open" }, { "id": "T07", "title": "Add page-specific meta descriptions", "priority": 7, "findingIds": [ "F11" ], "status": "open" }, { "id": "T08", "title": "Resolve source-map and DevTools inspector hygiene", "priority": 8, "findingIds": [ "F10" ], "guidanceId": "html", "status": "open" }, { "id": "T09", "title": "Progressively enhance article navigation with cross-document View Transitions", "priority": 9, "findingIds": [ "F02" ], "guidanceId": "cross-document-transitions", "status": "open" } ], "budget": { "pathCount": 4, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-23T13-01-25-750Z" }