{ "url": "https://tw.stock.yahoo.com", "auditedAt": "2026-07-18T18:48:58.003Z", "mode": "report", "status": "completed", "statusDetail": "Coverage complete. Public signed-out representative templates only; authenticated, payment and external-host journeys were excluded as recorded.", "page": { "appType": "hybrid", "framework": "React-like server-rendered application", "notes": "Large Taiwan finance portal with dashboard, quote, listing, editorial and interactive screener templates. The requested mobile viewport is served a scaled 1,020px desktop layout." }, "evidenceUsed": [ "screenshot", "DOM/computed-style", "layout-metrics/CLS/long-tasks", "evaluate-probes", "DevTools trace", "HAR", "discoverability raw-vs-rendered", "Lighthouse", "headers", "cookies", "trackers", "secrets", "images", "heap summaries", "Performance memory metrics", "robots/sitemap/HTTP probes", "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/class-discoverability-crawler.png", "caption": "class discoverability crawler", "findingIds": [] }, { "type": "screenshot", "path": "evidence/class-discoverability-rendered.png", "caption": "class discoverability rendered", "findingIds": [] }, { "type": "discoverability", "path": "evidence/class-discoverability.json", "caption": "class discoverability", "findingIds": [] }, { "type": "dom", "path": "evidence/class-dom.json", "caption": "class dom", "findingIds": [] }, { "type": "layout", "path": "evidence/class-layout-mobile.json", "caption": "class layout mobile", "condition": "requested viewport 360x800", "findingIds": [] }, { "type": "screenshot", "path": "evidence/class-mobile.png", "caption": "class mobile", "condition": "requested viewport 360x800", "findingIds": [] }, { "type": "other", "path": "evidence/class-probe.json", "caption": "class probe", "findingIds": [] }, { "type": "heap", "path": "evidence/heap-baseline.json", "caption": "heap baseline", "findingIds": [ "F033" ] }, { "type": "heap", "path": "evidence/heap-post.json", "caption": "heap post", "findingIds": [ "F033" ] }, { "type": "other", "path": "evidence/home-cookies.json", "caption": "home cookies", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "home dark", "condition": "prefers-color-scheme: dark", "findingIds": [ "F001" ] }, { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "home desktop", "findingIds": [ "F004", "F005", "F028" ] }, { "type": "screenshot", "path": "evidence/home-discoverability-crawler.png", "caption": "home discoverability crawler", "findingIds": [ "F025" ] }, { "type": "screenshot", "path": "evidence/home-discoverability-rendered.png", "caption": "home discoverability rendered", "findingIds": [] }, { "type": "discoverability", "path": "evidence/home-discoverability.json", "caption": "home discoverability", "findingIds": [ "F025" ] }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "home dom", "findingIds": [] }, { "type": "other", "path": "evidence/home-headers.json", "caption": "home headers", "findingIds": [ "F022", "F024" ] }, { "type": "screenshot", "path": "evidence/home-high-contrast.png", "caption": "home high contrast", "condition": "prefers-contrast: more", "findingIds": [ "F002", "F015" ] }, { "type": "other", "path": "evidence/home-images.json", "caption": "home images", "findingIds": [ "F010", "F014", "F019", "F029" ] }, { "type": "layout", "path": "evidence/home-layout-mobile.json", "caption": "home layout mobile", "condition": "requested viewport 360x800", "findingIds": [ "F006", "F017" ] }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "home mobile", "condition": "requested viewport 360x800", "findingIds": [ "F006" ] }, { "type": "other", "path": "evidence/home-probe.json", "caption": "home probe", "findingIds": [ "F001", "F002", "F003", "F004", "F007", "F008", "F014", "F016", "F021", "F027", "F032" ] }, { "type": "other", "path": "evidence/home-recon.json", "caption": "home recon", "findingIds": [] }, { "type": "other", "path": "evidence/home-reduced-motion.json", "caption": "home reduced motion", "findingIds": [] }, { "type": "other", "path": "evidence/home-secrets.json", "caption": "home secrets", "findingIds": [] }, { "type": "har-summary", "path": "evidence/home-summary.json", "caption": "home summary", "findingIds": [ "F012", "F013", "F018", "F023", "F030", "F031" ] }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "home trace summary", "findingIds": [ "F009", "F011", "F030" ] }, { "type": "trace", "path": "evidence/home-trace.json", "caption": "home trace", "findingIds": [] }, { "type": "other", "path": "evidence/home-trackers.json", "caption": "home trackers", "findingIds": [ "F023", "F031" ] }, { "type": "har", "path": "evidence/home.har", "caption": "home", "findingIds": [ "F012" ] }, { "type": "lighthouse", "path": "evidence/lighthouse-home.json", "caption": "lighthouse home", "findingIds": [ "F002", "F008", "F009", "F011", "F013", "F014", "F015", "F016", "F017", "F018", "F019", "F020", "F021" ] }, { "type": "lighthouse", "path": "evidence/lighthouse-screener.json", "caption": "lighthouse screener", "findingIds": [ "F009", "F010", "F015", "F018", "F020" ] }, { "type": "other", "path": "evidence/memory-metrics.json", "caption": "memory metrics", "findingIds": [ "F033" ] }, { "type": "screenshot", "path": "evidence/news-discoverability-crawler.png", "caption": "news discoverability crawler", "findingIds": [] }, { "type": "screenshot", "path": "evidence/news-discoverability-rendered.png", "caption": "news discoverability rendered", "findingIds": [] }, { "type": "discoverability", "path": "evidence/news-discoverability.json", "caption": "news discoverability", "findingIds": [] }, { "type": "dom", "path": "evidence/news-dom.json", "caption": "news dom", "findingIds": [] }, { "type": "layout", "path": "evidence/news-layout-mobile.json", "caption": "news layout mobile", "condition": "requested viewport 360x800", "findingIds": [] }, { "type": "screenshot", "path": "evidence/news-mobile.png", "caption": "news mobile", "condition": "requested viewport 360x800", "findingIds": [] }, { "type": "other", "path": "evidence/news-probe.json", "caption": "news probe", "findingIds": [] }, { "type": "other", "path": "evidence/notfound-headers.txt", "caption": "notfound headers", "findingIds": [ "F026" ] }, { "type": "other", "path": "evidence/notfound.html", "caption": "notfound", "findingIds": [ "F026" ] }, { "type": "screenshot", "path": "evidence/quote-desktop.png", "caption": "quote desktop", "findingIds": [] }, { "type": "screenshot", "path": "evidence/quote-discoverability-crawler.png", "caption": "quote discoverability crawler", "findingIds": [ "F025" ] }, { "type": "screenshot", "path": "evidence/quote-discoverability-rendered.png", "caption": "quote discoverability rendered", "findingIds": [] }, { "type": "discoverability", "path": "evidence/quote-discoverability.json", "caption": "quote discoverability", "findingIds": [ "F025", "F032" ] }, { "type": "dom", "path": "evidence/quote-dom.json", "caption": "quote dom", "findingIds": [] }, { "type": "layout", "path": "evidence/quote-layout-mobile.json", "caption": "quote layout mobile", "condition": "requested viewport 360x800", "findingIds": [] }, { "type": "screenshot", "path": "evidence/quote-mobile.png", "caption": "quote mobile", "condition": "requested viewport 360x800", "findingIds": [ "F007" ] }, { "type": "other", "path": "evidence/quote-probe.json", "caption": "quote probe", "findingIds": [ "F003", "F016", "F027" ] }, { "type": "other", "path": "evidence/robots-headers.txt", "caption": "robots headers", "findingIds": [] }, { "type": "other", "path": "evidence/robots.txt", "caption": "robots", "findingIds": [ "F032" ] }, { "type": "screenshot", "path": "evidence/screener-discoverability-crawler.png", "caption": "screener discoverability crawler", "findingIds": [] }, { "type": "screenshot", "path": "evidence/screener-discoverability-rendered.png", "caption": "screener discoverability rendered", "findingIds": [] }, { "type": "discoverability", "path": "evidence/screener-discoverability.json", "caption": "screener discoverability", "findingIds": [] }, { "type": "dom", "path": "evidence/screener-dom.json", "caption": "screener dom", "findingIds": [] }, { "type": "layout", "path": "evidence/screener-layout-mobile.json", "caption": "screener layout mobile", "condition": "requested viewport 360x800", "findingIds": [ "F006" ] }, { "type": "screenshot", "path": "evidence/screener-mobile.png", "caption": "screener mobile", "condition": "requested viewport 360x800", "findingIds": [ "F005", "F006" ] }, { "type": "other", "path": "evidence/screener-probe.json", "caption": "screener probe", "findingIds": [] }, { "type": "other", "path": "evidence/sitemap-headers.txt", "caption": "sitemap headers", "findingIds": [] }, { "type": "other", "path": "evidence/sitemap.xml", "caption": "sitemap", "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": "Emulated preference screenshots and computed-style/animation evaluate probes on home and quote", "evidence": "The dark-condition screenshot remains the same white interface as the default capture, and the live CSS probe found no prefers-color-scheme, light-dark(), or color-scheme implementation.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dark.png", "evidence/home-probe.json" ], "findingIds": [ "F001" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "medium", "method": "Emulated preference screenshots and computed-style/animation evaluate probes on home and quote", "evidence": "Under prefers-reduced-motion: reduce, matchMedia returned true, getAnimations() returned no active animation, and scroll-behavior was auto.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "issues", "confidence": "high", "method": "Emulated preference screenshots and computed-style/animation evaluate probes on home and quote", "evidence": "The prefers-contrast: more capture does not materially change controls or text, the CSS probe found no prefers-contrast or forced-colors rules, and Lighthouse reports color-contrast failures.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-high-contrast.png", "evidence/home-probe.json", "evidence/lighthouse-home.json" ], "findingIds": [ "F002" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "issues", "confidence": "high", "method": "DOM/CSS API usage probe plus interaction/scroll observation on home, quote and screener", "evidence": "The cross-template CSS probe found no view-transition rules or API styling on home, quote, listing, news, or screener surfaces.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json", "evidence/quote-probe.json" ], "findingIds": [ "F003" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "pass", "confidence": "medium", "method": "DOM/CSS API usage probe plus interaction/scroll observation on home, quote and screener", "evidence": "CSS inspection across all five templates found no animation-timeline/scroll-timeline and visual captures showed no scroll-linked parallax or reveal behavior, so no main-thread scroll animation anti-pattern was present.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "not-applicable", "confidence": "high", "method": "DOM/CSS API usage probe plus interaction/scroll observation on home, quote and screener", "evidence": "No custom swipe, pull, drag, carousel or other gesture-driven control was present on the five representative signed-out surfaces.", "reason": "No custom swipe, pull, drag, carousel or other gesture-driven control was present on the five representative signed-out surfaces.", "pathIds": [ "home" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "issues", "confidence": "high", "method": "DOM/CSS API usage probe plus interaction/scroll observation on home, quote and screener", "evidence": "The 6,617px desktop landing capture has static chrome and no progress cue; CSS inspection found no scroll-state query or scroll-timeline implementation.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-probe.json" ], "findingIds": [ "F004" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "not-applicable", "confidence": "high", "method": "DOM/CSS API usage probe plus interaction/scroll observation on home, quote and screener", "evidence": "No tooltip, transient popover or edge-positioned menu was exposed in the representative signed-out paths, so anchor positioning had no applicable target.", "reason": "No tooltip, transient popover or edge-positioned menu was exposed in the representative signed-out paths, so anchor positioning had no applicable target.", "pathIds": [ "home" ] }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "pass", "confidence": "medium", "method": "DOM/CSS API usage probe plus interaction/scroll observation on home, quote and screener", "evidence": "Screenshots show selected global and local navigation states (purple active tabs), breadcrumbs on screener, and descriptive route headings that preserve location across templates.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "pass", "confidence": "medium", "method": "DOM/evaluate probes plus screenshots across representative paths", "evidence": "Initial screenshots across five paths show no full-viewport modal, consent wall or interstitial obscuring the core content; banners remain in document flow.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "not-applicable", "confidence": "high", "method": "DOM/evaluate probes plus screenshots across representative paths", "evidence": "No modal, dialog, disclosure or transient overlay was present during load or the signed-out screener state.", "reason": "No modal, dialog, disclosure or transient overlay was present during load or the signed-out screener state.", "pathIds": [ "home" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "issues", "confidence": "high", "method": "DOM/evaluate probes plus screenshots across representative paths", "evidence": "The home and screener captures show multiple large banners, a right-rail ad, native-ad rows interleaved with news, and repeated navigation/search bars before core content.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/screener-mobile.png" ], "findingIds": [ "F005" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "issues", "confidence": "high", "method": "Mobile layout metrics, screenshots, target-size and focus probes across all representative templates", "evidence": "All five 360x800 layout captures report clientWidth 1,020 and hasViewportMeta false; screenshots are desktop layouts shrunk to roughly 35%, making text and controls extremely small.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-layout-mobile.json", "evidence/home-mobile.png", "evidence/screener-layout-mobile.json", "evidence/screener-mobile.png" ], "findingIds": [ "F006" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "issues", "confidence": "high", "method": "Mobile layout metrics, screenshots, target-size and focus probes across all representative templates", "evidence": "CSS probes across all five templates found no @container rules; dense cards and tables retain desktop arrangements in the scaled mobile canvas.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json", "evidence/quote-mobile.png" ], "findingIds": [ "F007" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "issues", "confidence": "high", "method": "Mobile layout metrics, screenshots, target-size and focus probes across all representative templates", "evidence": "The custom probe found 50 visible controls under 24px on the home page, and Lighthouse failed target-size; this is amplified by the 0.35 mobile scale.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json", "evidence/lighthouse-home.json" ], "findingIds": [ "F008" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "medium", "method": "DOM/evaluate probes plus screenshots across representative paths", "evidence": "Home exposes market conditions immediately, quote identifies 台積電 with live quote content, listing labels its market groups, news identifies 財經新聞, and screener exposes predefined strategies and login boundary.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "pass", "confidence": "medium", "method": "DOM/evaluate probes plus screenshots across representative paths", "evidence": "The public stock-research flow completed from home to the TSMC quote and related market/news surfaces without an account wall; the screener provides usable predefined strategy results while clearly gating only custom strategy persistence.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "pass", "confidence": "medium", "method": "DOM/evaluate probes plus screenshots across representative paths", "evidence": "The screener explicitly states 尚未登入Yahoo帳號 and offers a login action while preserving predefined strategies; the tested invalid URL returns an actual HTTP 404 rather than a false success.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Trace summary, layout observers, HAR summary, images inventory and Lighthouse on home; layout corroboration on quote", "evidence": "Lighthouse measured home LCP 8.5s, TBT 610ms and performance 0.44; screener measured LCP 4.6s, CLS 0.289, TBT 580ms and performance 0.38.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/lighthouse-screener.json", "evidence/home-trace-summary.json" ], "findingIds": [ "F009" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "issues", "confidence": "high", "method": "Trace summary, layout observers, HAR summary, images inventory and Lighthouse on home; layout corroboration on quote", "evidence": "Lighthouse measured CLS 0.289 on screener; the image inventory found 25 of 30 home images without width/height attributes.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-screener.json", "evidence/home-images.json" ], "findingIds": [ "F010" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "issues", "confidence": "high", "method": "Trace summary, layout observers, HAR summary, images inventory and Lighthouse on home; layout corroboration on quote", "evidence": "The trace recorded three long tasks, longest 196ms and TBT 184ms under a warm local capture; Lighthouse under throttling measured 610ms TBT and 27.7s to interactive.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-trace-summary.json", "evidence/lighthouse-home.json" ], "findingIds": [ "F011" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Trace summary, layout observers, HAR summary, images inventory and Lighthouse on home; layout corroboration on quote", "evidence": "HAR captured 222 requests and 3.57MB transferred, including 2.50MB script and 3.42MB classified third-party; it also identified eight first-party parser-inserted VeryHigh-priority stylesheets before third-party styles.", "pathIds": [ "home" ], "artifacts": [ "evidence/home.har", "evidence/home-summary.json" ], "findingIds": [ "F012" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Trace summary, layout observers, HAR summary, images inventory and Lighthouse on home; layout corroboration on quote", "evidence": "HAR largest scripts include Taboola 217KB, Google Publisher 200KB, Prebid 184KB and GTM 166KB; Lighthouse also reports missing source maps for large first-party JavaScript.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/lighthouse-home.json" ], "findingIds": [ "F013" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Lighthouse accessibility plus custom DOM/focus/heading/label/target/media probes and screenshots", "evidence": "Lighthouse fails link-name and label-content-name-mismatch; the image inventory reports 20 of 30 images without alt, and 85 of 294 home links have no discernible text in the DOM probe.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-images.json", "evidence/home-probe.json" ], "findingIds": [ "F014" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "issues", "confidence": "high", "method": "Lighthouse accessibility plus custom DOM/focus/heading/label/target/media probes and screenshots", "evidence": "Lighthouse’s color-contrast audit fails on both home and screener, corroborated by the unchanged high-contrast preference capture.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/lighthouse-screener.json", "evidence/home-high-contrast.png" ], "findingIds": [ "F015" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "issues", "confidence": "high", "method": "Lighthouse accessibility plus custom DOM/focus/heading/label/target/media probes and screenshots", "evidence": "All five DOM probes report zero main landmarks; Lighthouse fails landmark-one-main and link-name, while quote has two h1 elements and screener uses another h1 for the login state.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json", "evidence/quote-probe.json", "evidence/lighthouse-home.json" ], "findingIds": [ "F016" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "pass", "confidence": "medium", "method": "Lighthouse accessibility plus custom DOM/focus/heading/label/target/media probes and screenshots", "evidence": "Desktop captures show stable, unclipped Traditional Chinese text with consistent line wrapping and clear numeric alignment; legibility problems are isolated to the separately reported mobile scaling failure.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "issues", "confidence": "high", "method": "Lighthouse accessibility plus custom DOM/focus/heading/label/target/media probes and screenshots", "evidence": "Lighthouse fails meta-viewport because user-scalable=no or maximum-scale below 5 is present; CDP mobile layouts report hasViewportMeta false and a 1,020px layout scaled to 360px.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-layout-mobile.json" ], "findingIds": [ "F017" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "issues", "confidence": "high", "method": "Lighthouse best-practices plus DOM/console/platform hygiene probe and images inventory", "evidence": "Lighthouse fails errors-in-console on both home and screener; the HAR also records failed consent/cookie-sync requests and aborted analytics/ad requests.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/lighthouse-screener.json", "evidence/home-summary.json" ], "findingIds": [ "F018" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "issues", "confidence": "high", "method": "Lighthouse best-practices plus DOM/console/platform hygiene probe and images inventory", "evidence": "The image audit found 25/30 images without intrinsic dimensions, four oversized images and six legacy-format assets; Lighthouse reports low-resolution image delivery.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-images.json", "evidence/lighthouse-home.json" ], "findingIds": [ "F019" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "issues", "confidence": "high", "method": "Lighthouse best-practices plus DOM/console/platform hygiene probe and images inventory", "evidence": "Lighthouse reports deprecated API usage, missing source maps, inspector issues and a BFCache failure on both tested templates.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/lighthouse-screener.json" ], "findingIds": [ "F020" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "medium", "method": "Discoverability raw/rendered comparison, DOM metadata probe, robots/sitemap fetch and Lighthouse SEO", "evidence": "All five DOM probes found unique descriptive titles and meta descriptions specific to home, quote, market listing, news and screener.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "issues", "confidence": "high", "method": "Discoverability raw/rendered comparison, DOM metadata probe, robots/sitemap fetch and Lighthouse SEO", "evidence": "Lighthouse fails crawlable-anchors and meta-viewport; the probe counts 85 empty-name links on home and 77 on screener.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-probe.json" ], "findingIds": [ "F021" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "pass", "confidence": "medium", "method": "Discoverability raw/rendered comparison, DOM metadata probe, robots/sitemap fetch and Lighthouse SEO", "evidence": "All representative pages returned HTTP 200 and expose self-canonical URLs; robots.txt references working sitemap indexes and no accidental noindex was observed.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "pass", "confidence": "medium", "method": "Discoverability raw/rendered comparison, DOM metadata probe, robots/sitemap fetch and Lighthouse SEO", "evidence": "All five probes found six Open Graph fields; home/class/screener also include JSON-LD, providing share metadata appropriate to these listing surfaces.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Headers, cookies, trackers, secrets and HAR evidence; DOM probe for permissions/auth capability", "evidence": "HTTPS, HSTS and nosniff are present, but Content-Security-Policy contains only frame-ancestors and does not constrain script-src, style-src, object-src or base-uri.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json" ], "findingIds": [ "F022" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "issues", "confidence": "high", "method": "Headers, cookies, trackers, secrets and HAR evidence; DOM probe for permissions/auth capability", "evidence": "Tracker evidence found 25 third-party origins and 11 known tracker domains; HAR classified 217/222 requests and 3.42MB/3.57MB as third-party, including Google, Taboola and PubMatic systems.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-trackers.json", "evidence/home-summary.json" ], "findingIds": [ "F023" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "pass", "confidence": "medium", "method": "Headers, cookies, trackers, secrets and HAR evidence; DOM probe for permissions/auth capability", "evidence": "No permission element or prompt appeared on load across representative paths; authentication is delegated to login.yahoo.com and no password form is hosted on the audited origin.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Headers, cookies, trackers, secrets and HAR evidence; DOM probe for permissions/auth capability", "evidence": "The header audit found no Permissions-Policy and only a legacy no-referrer-when-downgrade Referrer-Policy; framing is covered by CSP frame-ancestors and HSTS is present.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json" ], "findingIds": [ "F024" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "issues", "confidence": "high", "method": "Discoverability no-JS evidence, manifest/service-worker probe, representative invalid route and runtime DOM inspection", "evidence": "Discoverability comparisons found only 25% raw/rendered word coverage on home, 16% on the TSMC quote and 31% on news, although titles and h1 survive.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-discoverability.json", "evidence/home-discoverability-crawler.png", "evidence/quote-discoverability.json", "evidence/quote-discoverability-crawler.png" ], "findingIds": [ "F025" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "pass", "confidence": "medium", "method": "Discoverability no-JS evidence, manifest/service-worker probe, representative invalid route and runtime DOM inspection", "evidence": "Five rendered paths completed without blank shells or clipped modal/menu states; class and screener preserve 88–100% raw content and the public route transitions resolve to stable documents.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "not-applicable", "confidence": "high", "method": "Discoverability no-JS evidence, manifest/service-worker probe, representative invalid route and runtime DOM inspection", "evidence": "Live market prices and screening are intrinsically online; no offline/installable intent was declared, so the contextual PWA check is not applicable.", "reason": "Live market prices and screening are intrinsically online; no offline/installable intent was declared, so the contextual PWA check is not applicable.", "pathIds": [ "home" ] }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "issues", "confidence": "high", "method": "Discoverability no-JS evidence, manifest/service-worker probe, representative invalid route and runtime DOM inspection", "evidence": "A missing stock route correctly returns HTTP 404, but its body only redirects with JavaScript or noscript meta refresh to the general Yahoo homepage error surface.", "pathIds": [ "home" ], "artifacts": [ "evidence/notfound-headers.txt", "evidence/notfound.html" ], "findingIds": [ "F026" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "issues", "confidence": "high", "method": "DOM lang/dir plus rendered locale-data and CSS logical-property probe", "evidence": "All probes report lang=zh-Hant-TW, but no logical properties were detected and dozens of physical left/right declarations were present on home, quote and news.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json", "evidence/quote-probe.json" ], "findingIds": [ "F027" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "pass", "confidence": "medium", "method": "DOM lang/dir plus rendered locale-data and CSS logical-property probe", "evidence": "Rendered pages use zh-Hant-TW labels, localized relative durations, comma-separated numbers and market/currency notation consistently across home, quote and listings.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "pass", "confidence": "medium", "method": "DOM lang/dir plus rendered locale-data and CSS logical-property probe", "evidence": "Visible market update times and relative news durations are rendered consistently in the zh-Hant-TW experience without ambiguous raw timestamp strings.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "issues", "confidence": "high", "method": "DOM/evaluate probes plus screenshots across representative paths", "evidence": "The home feed screenshot includes rows such as “Search For Booking Software” and “Find Results…” styled like news cards with only a small Ad label, alongside multiple high-prominence banners.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png" ], "findingIds": [ "F028" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "not-applicable", "confidence": "high", "method": "DOM/evaluate probes plus screenshots across representative paths", "evidence": "No authored data-entry form with validation was available in the representative signed-out scope; stock search is suggestion-driven and has no required-field submission.", "reason": "No authored data-entry form with validation was available in the representative signed-out scope; stock search is suggestion-driven and has no required-field submission.", "pathIds": [ "home" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "not-applicable", "confidence": "high", "method": "DOM/evaluate probes plus screenshots across representative paths", "evidence": "The only first-party text input is stock-symbol search; address, payment, sign-in and sign-up fields are hosted outside the audited origin.", "reason": "The only first-party text input is stock-symbol search; address, payment, sign-in and sign-up fields are hosted outside the audited origin.", "pathIds": [ "home" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "not-applicable", "confidence": "high", "method": "DOM/evaluate probes plus screenshots across representative paths", "evidence": "VIP purchase, authentication and account management require credentials/payment or move to external Yahoo services and were explicitly excluded from this public signed-out audit.", "reason": "VIP purchase, authentication and account management require credentials/payment or move to external Yahoo services and were explicitly excluded from this public signed-out audit.", "pathIds": [ "home" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "HAR summary, images inventory, trace/layout long tasks and media/autoplay probe", "evidence": "The image audit reports 25 images without dimensions, four oversized, six legacy-format, two without srcset and no images recognized as modern format.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-images.json" ], "findingIds": [ "F029" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "issues", "confidence": "high", "method": "HAR summary, images inventory, trace/layout long tasks and media/autoplay probe", "evidence": "The load makes 222 requests, executes 61 scripts, and records repeated analytics/ad calls plus long tasks after content begins rendering.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/home-trace-summary.json" ], "findingIds": [ "F030" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "HAR summary, images inventory, trace/layout long tasks and media/autoplay probe", "evidence": "HAR attributes 3.42MB of 3.57MB and 217 of 222 requests to third-party origins; the largest non-core scripts include Taboola, Google Publisher, Prebid and GTM.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/home-trackers.json" ], "findingIds": [ "F031" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "issues", "confidence": "high", "method": "DOM/source-text probe for WebMCP/agent capabilities and built-in AI, judged contextually", "evidence": "robots.txt disallows anthropic-ai, ClaudeBot, GPTBot, ChatGPT-User, Google-Extended, PerplexityBot and many peers; probes found no WebMCP/agentic capability, while no-JS quote coverage is only 16%.", "pathIds": [ "home" ], "artifacts": [ "evidence/robots.txt", "evidence/quote-discoverability.json", "evidence/home-probe.json" ], "findingIds": [ "F032" ] }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "DOM/source-text probe for WebMCP/agent capabilities and built-in AI, judged contextually", "evidence": "No summarisation or generative interaction is offered in the current product surface, so an on-device inference implementation has no defined user task to satisfy.", "reason": "No summarisation or generative interaction is offered in the current product surface, so an on-device inference implementation has no defined user task to satisfy.", "pathIds": [ "home" ] }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "issues", "confidence": "medium", "method": "Heap baseline/post repeated search interaction comparison plus Performance metrics and detached-node/listener-oriented probe", "evidence": "Across baseline and post snapshots, heap self-size rose from 53.5MB to 62.9MB and snapshot nodes from 881,921 to 1,036,618; same-session performance.memory rose from 54.8MB to 69.6MB and DOM nodes from 2,177 to 2,863. Lazy feed loading may explain part of this, so leak confidence is medium.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.json", "evidence/heap-post.json", "evidence/memory-metrics.json" ], "findingIds": [ "F033" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "pass", "confidence": "medium", "method": "Heap baseline/post repeated search interaction comparison plus Performance metrics and detached-node/listener-oriented probe", "evidence": "Baseline heap self-size was 53.5MB with 2,177 live DOM elements in a dense market/news dashboard; this single-state footprint is substantial but proportionate to the rendered content and below the separate interaction-growth concern.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "medium", "method": "Heap baseline/post repeated search interaction comparison plus Performance metrics and detached-node/listener-oriented probe", "evidence": "Neither heap summary exposed a Detached* constructor among the largest retained constructors; the evidence did not show a direct detached-DOM population, with interaction growth recorded separately.", "pathIds": [ "home", "quote-2330", "market-listing", "news", "screener" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "F001", "F002" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "issues", "findingIds": [ "F003" ] }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "issues", "findingIds": [ "F004" ] }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "F005" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F006", "F007", "F008" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "pass" }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F009", "F010", "F011", "F012", "F013" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F014", "F015", "F016", "F017" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "F018", "F019", "F020" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "F021" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F022", "F023", "F024" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "issues", "findingIds": [ "F025", "F026" ] }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "issues", "findingIds": [ "F027" ] }, { "principleId": "be-trustworthy", "expectation": "default", "status": "issues", "findingIds": [ "F028" ] }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F029", "F030", "F031" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "issues", "findingIds": [ "F032" ] }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "issues", "findingIds": [ "F033" ] } ], "paths": [ { "id": "home", "description": "Entry dashboard, global navigation, market summary and mixed editorial feed. Represents shared chrome and the highest-density landing template.", "url": "https://tw.stock.yahoo.com/", "conditions": [ "desktop", "360x800 requested mobile viewport", "prefers-color-scheme: dark", "prefers-contrast: more", "prefers-reduced-motion: reduce", "keyboard focus", "no-JavaScript crawler view" ], "result": "issues" }, { "id": "quote-2330", "description": "TSMC quote detail, chart and related-news template. Represents the primary stock-research journey.", "url": "https://tw.stock.yahoo.com/quote/2330.TW", "conditions": [ "desktop", "360x800 requested mobile viewport", "no-JavaScript crawler view" ], "result": "issues" }, { "id": "market-listing", "description": "Market category/index template with dense quote links.", "url": "https://tw.stock.yahoo.com/class/", "conditions": [ "360x800 requested mobile viewport", "no-JavaScript crawler view" ], "result": "issues" }, { "id": "news", "description": "Editorial listing and content-discovery template.", "url": "https://tw.stock.yahoo.com/news/", "conditions": [ "360x800 requested mobile viewport", "no-JavaScript crawler view" ], "result": "issues" }, { "id": "screener", "description": "Stock-screening journey for a signed-out user, including the login boundary and predefined strategies.", "url": "https://tw.stock.yahoo.com/screener/", "conditions": [ "360x800 requested mobile viewport", "Lighthouse mobile", "no-JavaScript crawler view" ], "result": "issues" } ], "findings": [ { "id": "F001", "severity": "medium", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "summary": "The site ignores the user’s dark-color preference.", "evidence": "The dark-condition screenshot remains the same white interface as the default capture, and the live CSS probe found no prefers-color-scheme, light-dark(), or color-scheme implementation.", "suggestedFix": "Declare color-scheme and provide preference-driven light/dark surface, text, border, chart, and advertisement-container tokens.", "guidanceId": "dark-mode", "guidanceCategory": "user-experience", "confidence": "high", "artifacts": [ "evidence/home-dark.png", "evidence/home-probe.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F002", "severity": "medium", "principleId": "respect-user-preferences", "principleCheckId": "respects-contrast", "summary": "High-contrast preferences receive no dedicated treatment.", "evidence": "The prefers-contrast: more capture does not materially change controls or text, the CSS probe found no prefers-contrast or forced-colors rules, and Lighthouse reports color-contrast failures.", "suggestedFix": "Add forced-colors and prefers-contrast adaptations, preserve system colors and visible control boundaries, and retest charts and icon-only controls.", "guidanceId": "adapt-scrollbar-to-contrast-preferences", "guidanceCategory": "accessibility", "confidence": "high", "artifacts": [ "evidence/home-high-contrast.png", "evidence/home-probe.json", "evidence/lighthouse-home.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F003", "severity": "low", "principleId": "implement-natural-interactions", "principleCheckId": "view-transitions", "summary": "Route and state changes have no View Transition treatment.", "evidence": "The cross-template CSS probe found no view-transition rules or API styling on home, quote, listing, news, or screener surfaces.", "suggestedFix": "Progressively enhance route and meaningful state changes with same-document or cross-document View Transitions while retaining instant fallback behavior.", "guidanceId": "cross-document-transitions", "guidanceCategory": "user-experience", "confidence": "high", "artifacts": [ "evidence/home-probe.json", "evidence/quote-probe.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F004", "severity": "low", "principleId": "provide-guided-navigation", "principleCheckId": "scroll-state-aware-chrome", "summary": "The long landing page gives no scroll-position feedback.", "evidence": "The 6,617px desktop landing capture has static chrome and no progress cue; CSS inspection found no scroll-state query or scroll-timeline implementation.", "suggestedFix": "Use a restrained shrinking header or progress indicator driven by scroll-state/container queries where it helps orientation.", "guidanceId": "scroll-progress-indicator", "guidanceCategory": "user-experience", "confidence": "high", "artifacts": [ "evidence/home-desktop.png", "evidence/home-probe.json" ], "effort": "small", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F005", "severity": "high", "principleId": "maximize-content-reduce-noise", "principleCheckId": "reduced-chrome", "summary": "Advertising and auxiliary chrome compete with financial content.", "evidence": "The home and screener captures show multiple large banners, a right-rail ad, native-ad rows interleaved with news, and repeated navigation/search bars before core content.", "suggestedFix": "Reserve fewer, clearly separated ad slots, defer below-fold ad systems, and reduce duplicated navigation so market data and task controls dominate each viewport.", "guidanceId": "reduce-style-repetition", "guidanceCategory": "css", "confidence": "high", "artifacts": [ "evidence/home-desktop.png", "evidence/screener-mobile.png" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F006", "severity": "critical", "principleId": "adapt-to-the-form-factor", "principleCheckId": "responsive-no-horizontal-scroll", "summary": "The requested mobile viewport renders a scaled 1,020px desktop canvas.", "evidence": "All five 360x800 layout captures report clientWidth 1,020 and hasViewportMeta false; screenshots are desktop layouts shrunk to roughly 35%, making text and controls extremely small.", "suggestedFix": "Add a valid width=device-width viewport declaration without disabling zoom, then rebuild shared chrome, tables, cards and ad slots as mobile-first fluid layouts.", "guidanceId": "fluid-scaling", "guidanceCategory": "css", "confidence": "high", "artifacts": [ "evidence/home-layout-mobile.json", "evidence/home-mobile.png", "evidence/screener-layout-mobile.json", "evidence/screener-mobile.png" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F007", "severity": "medium", "principleId": "adapt-to-the-form-factor", "principleCheckId": "component-level-responsiveness", "summary": "Reusable components do not adapt to their available container.", "evidence": "CSS probes across all five templates found no @container rules; dense cards and tables retain desktop arrangements in the scaled mobile canvas.", "suggestedFix": "Define inline-size containers around shared cards/tables and use container queries to stack, abbreviate, or disclose secondary data at narrow component widths.", "guidanceId": "size-aware-styling", "guidanceCategory": "css", "confidence": "high", "artifacts": [ "evidence/home-probe.json", "evidence/quote-mobile.png" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F008", "severity": "high", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "summary": "Many interactive targets are too small for touch.", "evidence": "The custom probe found 50 visible controls under 24px on the home page, and Lighthouse failed target-size; this is amplified by the 0.35 mobile scale.", "suggestedFix": "Adopt at least 44x44 CSS-pixel touch areas or equivalent spacing, preserve visible :focus-visible rings, and avoid icon-only links without larger hit areas.", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "confidence": "high", "artifacts": [ "evidence/home-probe.json", "evidence/lighthouse-home.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F009", "severity": "high", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "summary": "Primary templates miss the performance and stability baseline.", "evidence": "Lighthouse measured home LCP 8.5s, TBT 610ms and performance 0.44; screener measured LCP 4.6s, CLS 0.289, TBT 580ms and performance 0.38.", "suggestedFix": "Prioritize the LCP resource, reduce initial third-party/script work, reserve dynamic regions, and break or defer tasks before re-measuring on representative devices.", "guidanceId": "performance", "guidanceCategory": "performance", "confidence": "high", "artifacts": [ "evidence/lighthouse-home.json", "evidence/lighthouse-screener.json", "evidence/home-trace-summary.json" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F010", "severity": "medium", "principleId": "be-fast-and-stable", "principleCheckId": "visual-stability", "summary": "The screener and image markup allow visible layout movement.", "evidence": "Lighthouse measured CLS 0.289 on screener; the image inventory found 25 of 30 home images without width/height attributes.", "suggestedFix": "Reserve intrinsic image/ad/card space with width, height or aspect-ratio and diagnose the screener CLS culprits before late content is inserted.", "guidanceId": "visually-stable-font-fallbacks", "guidanceCategory": "performance", "confidence": "high", "artifacts": [ "evidence/lighthouse-screener.json", "evidence/home-images.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F011", "severity": "high", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-main-thread", "summary": "JavaScript blocks responsiveness during load.", "evidence": "The trace recorded three long tasks, longest 196ms and TBT 184ms under a warm local capture; Lighthouse under throttling measured 610ms TBT and 27.7s to interactive.", "suggestedFix": "Use code coverage to remove unused startup code, split work into scheduler-yielding tasks, and delay analytics/ad work until after core market UI is interactive.", "guidanceId": "break-up-long-tasks", "guidanceCategory": "performance", "confidence": "high", "artifacts": [ "evidence/home-trace-summary.json", "evidence/lighthouse-home.json" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F012", "severity": "high", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "summary": "The critical load is dominated by scripts and third parties.", "evidence": "HAR captured 222 requests and 3.57MB transferred, including 2.50MB script and 3.42MB classified third-party; it also identified eight first-party parser-inserted VeryHigh-priority stylesheets before third-party styles.", "suggestedFix": "Consolidate critical CSS, defer non-critical styles, audit preload priorities, and gate ad/analytics bundles behind consent and post-interaction loading.", "guidanceId": "optimize-script-priority", "guidanceCategory": "performance", "confidence": "high", "artifacts": [ "evidence/home.har", "evidence/home-summary.json" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F013", "severity": "high", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "summary": "Large advertising and analytics bundles dominate shipped code.", "evidence": "HAR largest scripts include Taboola 217KB, Google Publisher 200KB, Prebid 184KB and GTM 166KB; Lighthouse also reports missing source maps for large first-party JavaScript.", "suggestedFix": "Remove redundant vendors, load revenue code only in slots that become viewable, and use coverage/bundle analysis to split unused first-party modules.", "guidanceId": "identify-heavy-scripts", "guidanceCategory": "performance", "confidence": "high", "artifacts": [ "evidence/home-summary.json", "evidence/lighthouse-home.json" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F014", "severity": "high", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "summary": "Important controls and content lack accessible names.", "evidence": "Lighthouse fails link-name and label-content-name-mismatch; the image inventory reports 20 of 30 images without alt, and 85 of 294 home links have no discernible text in the DOM probe.", "suggestedFix": "Give every actionable icon/link a programmatic name matching visible text, label search fields, and provide meaningful or empty alt according to image purpose.", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "confidence": "high", "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-images.json", "evidence/home-probe.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F015", "severity": "medium", "principleId": "be-inclusive", "principleCheckId": "sufficient-contrast", "summary": "Text and essential UI fail minimum contrast.", "evidence": "Lighthouse’s color-contrast audit fails on both home and screener, corroborated by the unchanged high-contrast preference capture.", "suggestedFix": "Adjust semantic color tokens to WCAG minimum ratios in every state and verify market gain/loss colors with non-color cues.", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "confidence": "high", "artifacts": [ "evidence/lighthouse-home.json", "evidence/lighthouse-screener.json", "evidence/home-high-contrast.png" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F016", "severity": "high", "principleId": "be-inclusive", "principleCheckId": "structure-and-focus", "summary": "Pages have no main landmark and contain noisy heading/link structure.", "evidence": "All five DOM probes report zero main landmarks; Lighthouse fails landmark-one-main and link-name, while quote has two h1 elements and screener uses another h1 for the login state.", "suggestedFix": "Wrap unique page content in one main landmark, keep one descriptive h1, repair heading order, and remove unnamed focus stops.", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "confidence": "high", "artifacts": [ "evidence/home-probe.json", "evidence/quote-probe.json", "evidence/lighthouse-home.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F017", "severity": "high", "principleId": "be-inclusive", "principleCheckId": "zoom-reflow-targets-and-media", "summary": "Viewport policy prevents normal zoom and reflow.", "evidence": "Lighthouse fails meta-viewport because user-scalable=no or maximum-scale below 5 is present; CDP mobile layouts report hasViewportMeta false and a 1,020px layout scaled to 360px.", "suggestedFix": "Use width=device-width, initial-scale=1 without maximum-scale or user-scalable restrictions, then test 200% zoom, 320px reflow and touch target spacing.", "guidanceId": "fluid-scaling", "guidanceCategory": "css", "confidence": "high", "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-layout-mobile.json" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F018", "severity": "medium", "principleId": "follow-best-practices", "principleCheckId": "no-console-errors", "summary": "The page emits browser errors during normal load.", "evidence": "Lighthouse fails errors-in-console on both home and screener; the HAR also records failed consent/cookie-sync requests and aborted analytics/ad requests.", "suggestedFix": "Fix uncaught/runtime errors, handle optional vendor failures without console noise, and add production monitoring keyed to first-party exceptions.", "guidanceId": "html", "guidanceCategory": "html", "confidence": "high", "artifacts": [ "evidence/lighthouse-home.json", "evidence/lighthouse-screener.json", "evidence/home-summary.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F019", "severity": "medium", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "summary": "Asset markup is not consistently sound.", "evidence": "The image audit found 25/30 images without intrinsic dimensions, four oversized images and six legacy-format assets; Lighthouse reports low-resolution image delivery.", "suggestedFix": "Emit intrinsic dimensions and responsive srcset/sizes, choose appropriate modern formats, and avoid low-resolution placeholders as final rendered assets.", "guidanceId": "html", "guidanceCategory": "html", "confidence": "high", "artifacts": [ "evidence/home-images.json", "evidence/lighthouse-home.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F020", "severity": "medium", "principleId": "follow-best-practices", "principleCheckId": "browser-platform-hygiene", "summary": "The page has several platform-hygiene failures.", "evidence": "Lighthouse reports deprecated API usage, missing source maps, inspector issues and a BFCache failure on both tested templates.", "suggestedFix": "Remove deprecated calls, publish usable source maps privately or publicly as policy allows, resolve DevTools issues, and eliminate avoidable unload/BFCache blockers.", "guidanceId": "html", "guidanceCategory": "html", "confidence": "high", "artifacts": [ "evidence/lighthouse-home.json", "evidence/lighthouse-screener.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F021", "severity": "high", "principleId": "be-discoverable", "principleCheckId": "crawlable-and-mobile-friendly", "summary": "Some navigation is unnamed or not crawlable, and mobile metadata is harmful.", "evidence": "Lighthouse fails crawlable-anchors and meta-viewport; the probe counts 85 empty-name links on home and 77 on screener.", "suggestedFix": "Use real href links with descriptive accessible text, repair icon-only anchors, and publish a zoom-safe responsive viewport declaration.", "guidanceId": "html", "guidanceCategory": "html", "confidence": "high", "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-probe.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F022", "severity": "medium", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "summary": "The CSP provides framing control but little script/style XSS defense.", "evidence": "HTTPS, HSTS and nosniff are present, but Content-Security-Policy contains only frame-ancestors and does not constrain script-src, style-src, object-src or base-uri.", "suggestedFix": "Deploy a nonce/hash-based CSP in report-only mode, inventory required origins, then enforce tight script/style/default/object/base directives.", "guidanceId": "security", "guidanceCategory": "security", "confidence": "high", "artifacts": [ "evidence/home-headers.json" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F023", "severity": "high", "principleId": "be-private-and-secure", "principleCheckId": "data-minimisation-and-third-parties", "summary": "The default load has a very large tracking and third-party footprint.", "evidence": "Tracker evidence found 25 third-party origins and 11 known tracker domains; HAR classified 217/222 requests and 3.42MB/3.57MB as third-party, including Google, Taboola and PubMatic systems.", "suggestedFix": "Minimise vendors, require purpose-specific consent before non-essential tracking, batch analytics, shorten retention and provide an equally usable reject path.", "guidanceId": "privacy", "guidanceCategory": "privacy", "confidence": "high", "artifacts": [ "evidence/home-trackers.json", "evidence/home-summary.json" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F024", "severity": "medium", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "summary": "Browser defense headers are incomplete.", "evidence": "The header audit found no Permissions-Policy and only a legacy no-referrer-when-downgrade Referrer-Policy; framing is covered by CSP frame-ancestors and HSTS is present.", "suggestedFix": "Add a least-privilege Permissions-Policy, use strict-origin-when-cross-origin or stricter referrer handling, and evaluate Trusted Types/origin isolation for this script-heavy app.", "guidanceId": "security", "guidanceCategory": "security", "confidence": "high", "artifacts": [ "evidence/home-headers.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F025", "severity": "high", "principleId": "be-resilient", "principleCheckId": "progressive-enhancement", "summary": "Core dashboard, quote and news content is largely absent without JavaScript.", "evidence": "Discoverability comparisons found only 25% raw/rendered word coverage on home, 16% on the TSMC quote and 31% on news, although titles and h1 survive.", "suggestedFix": "Server-render core prices, headings, article links and summaries, then hydrate enhancements so no-JS and constrained clients receive the primary information.", "guidanceId": "stabilize-reactive-state", "guidanceCategory": "user-experience", "confidence": "high", "artifacts": [ "evidence/home-discoverability.json", "evidence/home-discoverability-crawler.png", "evidence/quote-discoverability.json", "evidence/quote-discoverability-crawler.png" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F026", "severity": "low", "principleId": "be-resilient", "principleCheckId": "network-and-http-failure-states", "summary": "Unknown routes depend on script or meta refresh and lose site context.", "evidence": "A missing stock route correctly returns HTTP 404, but its body only redirects with JavaScript or noscript meta refresh to the general Yahoo homepage error surface.", "suggestedFix": "Serve an in-context stock-site 404 with search, recent route recovery and a real link fallback, without requiring script to understand or recover.", "guidanceId": "persistent-toast-notifications", "guidanceCategory": "user-experience", "confidence": "high", "artifacts": [ "evidence/notfound-headers.txt", "evidence/notfound.html" ], "effort": "small", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F027", "severity": "low", "principleId": "be-internationalised", "principleCheckId": "lang-dir-and-logical-properties", "summary": "The document language is correct but layout CSS is not writing-mode resilient.", "evidence": "All probes report lang=zh-Hant-TW, but no logical properties were detected and dozens of physical left/right declarations were present on home, quote and news.", "suggestedFix": "Keep the correct language metadata and migrate reusable spacing/position rules to inline/block logical properties.", "guidanceId": "translator", "guidanceCategory": "internationalization", "confidence": "high", "artifacts": [ "evidence/home-probe.json", "evidence/quote-probe.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F028", "severity": "high", "principleId": "be-trustworthy", "principleCheckId": "no-dark-patterns", "summary": "Native-looking advertisements are interleaved with editorial results.", "evidence": "The home feed screenshot includes rows such as “Search For Booking Software” and “Find Results…” styled like news cards with only a small Ad label, alongside multiple high-prominence banners.", "suggestedFix": "Visually separate paid placements, use persistent prominent ad labels, and ensure ads cannot be mistaken for finance reporting or primary controls.", "guidanceId": "search-hidden-content", "guidanceCategory": "user-experience", "confidence": "high", "artifacts": [ "evidence/home-desktop.png" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F029", "severity": "medium", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "summary": "Image delivery wastes bytes and lacks intrinsic metadata.", "evidence": "The image audit reports 25 images without dimensions, four oversized, six legacy-format, two without srcset and no images recognized as modern format.", "suggestedFix": "Generate responsive modern-format variants, declare srcset/sizes and intrinsic dimensions, and verify actual rendered resolution at each container width.", "guidanceId": "deliver-optimized-decorative-images", "guidanceCategory": "performance", "confidence": "high", "artifacts": [ "evidence/home-images.json" ], "effort": "medium", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F030", "severity": "medium", "principleId": "be-sustainable", "principleCheckId": "no-wasteful-work", "summary": "Non-core background and advertising work is substantial.", "evidence": "The load makes 222 requests, executes 61 scripts, and records repeated analytics/ad calls plus long tasks after content begins rendering.", "suggestedFix": "Deprioritize or cancel background fetches when hidden, batch analytics, and avoid loading bidder/ad code for slots unlikely to enter the viewport.", "guidanceId": "deprioritize-background-fetches", "guidanceCategory": "performance", "confidence": "high", "artifacts": [ "evidence/home-summary.json", "evidence/home-trace-summary.json" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F031", "severity": "high", "principleId": "be-sustainable", "principleCheckId": "third-party-and-media-budget", "summary": "Third-party cost is disproportionate to the core finance experience.", "evidence": "HAR attributes 3.42MB of 3.57MB and 217 of 222 requests to third-party origins; the largest non-core scripts include Taboola, Google Publisher, Prebid and GTM.", "suggestedFix": "Set a third-party byte/request budget, lazy-load below-fold ad slots, remove duplicate bidders and measure revenue value against transferred and CPU cost.", "guidanceId": "efficient-background-processing", "guidanceCategory": "performance", "confidence": "high", "artifacts": [ "evidence/home-summary.json", "evidence/home-trackers.json" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F032", "severity": "medium", "principleId": "be-agent-ready", "principleCheckId": "structured-agent-capabilities", "summary": "The public finance site is deliberately unavailable to major AI agents and exposes no structured agent tools.", "evidence": "robots.txt disallows anthropic-ai, ClaudeBot, GPTBot, ChatGPT-User, Google-Extended, PerplexityBot and many peers; probes found no WebMCP/agentic capability, while no-JS quote coverage is only 16%.", "suggestedFix": "Define an explicit agent policy; if safe access is intended, expose read-only structured quote/search tools with scoped schemas and allow appropriate crawlers instead of requiring screen scraping.", "guidanceId": "webmcp", "guidanceCategory": "ai", "confidence": "high", "artifacts": [ "evidence/robots.txt", "evidence/quote-discoverability.json", "evidence/home-probe.json" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" }, { "id": "F033", "severity": "medium", "principleId": "be-memory-efficient", "principleCheckId": "no-leak-under-repeated-interaction", "summary": "Repeated search/scroll interaction retains substantial additional memory.", "evidence": "Across baseline and post snapshots, heap self-size rose from 53.5MB to 62.9MB and snapshot nodes from 881,921 to 1,036,618; same-session performance.memory rose from 54.8MB to 69.6MB and DOM nodes from 2,177 to 2,863. Lazy feed loading may explain part of this, so leak confidence is medium.", "suggestedFix": "Repeat a controlled open/close or search/reset cycle with forced GC and baseline/target/final snapshots, then remove retained listeners, detached trees or unbounded feed caches identified by retaining paths.", "guidanceId": "manage-recurring-intervals", "guidanceCategory": "performance", "confidence": "medium", "artifacts": [ "evidence/heap-baseline.json", "evidence/heap-post.json", "evidence/memory-metrics.json" ], "effort": "large", "pathId": "home", "url": "https://tw.stock.yahoo.com/" } ], "taskList": [ { "id": "T001", "title": "Add a valid width=device-width viewport declaration without disabling zoom, then rebuild shared chrome, tables, cards and ad slots as mobile-first fluid layouts.", "priority": 1, "findingIds": [ "F006" ], "guidanceId": "fluid-scaling", "status": "open" }, { "id": "T002", "title": "Prioritize the LCP resource, reduce initial third-party/script work, reserve dynamic regions, and break or defer tasks before re-measuring on representative devices.", "priority": 2, "findingIds": [ "F009" ], "guidanceId": "performance", "status": "open" }, { "id": "T003", "title": "Minimise vendors, require purpose-specific consent before non-essential tracking, batch analytics, shorten retention and provide an equally usable reject path.", "priority": 3, "findingIds": [ "F023" ], "guidanceId": "privacy", "status": "open" }, { "id": "T004", "title": "Consolidate critical CSS, defer non-critical styles, audit preload priorities, and gate ad/analytics bundles behind consent and post-interaction loading.", "priority": 4, "findingIds": [ "F012" ], "guidanceId": "optimize-script-priority", "status": "open" }, { "id": "T005", "title": "Give every actionable icon/link a programmatic name matching visible text, label search fields, and provide meaningful or empty alt according to image purpose.", "priority": 5, "findingIds": [ "F014" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T006", "title": "Use width=device-width, initial-scale=1 without maximum-scale or user-scalable restrictions, then test 200% zoom, 320px reflow and touch target spacing.", "priority": 6, "findingIds": [ "F017" ], "guidanceId": "fluid-scaling", "status": "open" }, { "id": "T007", "title": "Use code coverage to remove unused startup code, split work into scheduler-yielding tasks, and delay analytics/ad work until after core market UI is interactive.", "priority": 7, "findingIds": [ "F011" ], "guidanceId": "break-up-long-tasks", "status": "open" }, { "id": "T008", "title": "Remove redundant vendors, load revenue code only in slots that become viewable, and use coverage/bundle analysis to split unused first-party modules.", "priority": 8, "findingIds": [ "F013" ], "guidanceId": "identify-heavy-scripts", "status": "open" }, { "id": "T009", "title": "Wrap unique page content in one main landmark, keep one descriptive h1, repair heading order, and remove unnamed focus stops.", "priority": 9, "findingIds": [ "F016" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T010", "title": "Use real href links with descriptive accessible text, repair icon-only anchors, and publish a zoom-safe responsive viewport declaration.", "priority": 10, "findingIds": [ "F021" ], "guidanceId": "html", "status": "open" }, { "id": "T011", "title": "Set a third-party byte/request budget, lazy-load below-fold ad slots, remove duplicate bidders and measure revenue value against transferred and CPU cost.", "priority": 11, "findingIds": [ "F031" ], "guidanceId": "efficient-background-processing", "status": "open" }, { "id": "T012", "title": "Reserve fewer, clearly separated ad slots, defer below-fold ad systems, and reduce duplicated navigation so market data and task controls dominate each viewport.", "priority": 12, "findingIds": [ "F005" ], "guidanceId": "reduce-style-repetition", "status": "open" }, { "id": "T013", "title": "Adopt at least 44x44 CSS-pixel touch areas or equivalent spacing, preserve visible :focus-visible rings, and avoid icon-only links without larger hit areas.", "priority": 13, "findingIds": [ "F008" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T014", "title": "Reserve intrinsic image/ad/card space with width, height or aspect-ratio and diagnose the screener CLS culprits before late content is inserted.", "priority": 14, "findingIds": [ "F010" ], "guidanceId": "visually-stable-font-fallbacks", "status": "open" }, { "id": "T015", "title": "Adjust semantic color tokens to WCAG minimum ratios in every state and verify market gain/loss colors with non-color cues.", "priority": 15, "findingIds": [ "F015" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T016", "title": "Fix uncaught/runtime errors, handle optional vendor failures without console noise, and add production monitoring keyed to first-party exceptions.", "priority": 16, "findingIds": [ "F018" ], "guidanceId": "html", "status": "open" }, { "id": "T017", "title": "Emit intrinsic dimensions and responsive srcset/sizes, choose appropriate modern formats, and avoid low-resolution placeholders as final rendered assets.", "priority": 17, "findingIds": [ "F019" ], "guidanceId": "html", "status": "open" }, { "id": "T018", "title": "Remove deprecated calls, publish usable source maps privately or publicly as policy allows, resolve DevTools issues, and eliminate avoidable unload/BFCache blockers.", "priority": 18, "findingIds": [ "F020" ], "guidanceId": "html", "status": "open" }, { "id": "T019", "title": "Deploy a nonce/hash-based CSP in report-only mode, inventory required origins, then enforce tight script/style/default/object/base directives.", "priority": 19, "findingIds": [ "F022" ], "guidanceId": "security", "status": "open" }, { "id": "T020", "title": "Add a least-privilege Permissions-Policy, use strict-origin-when-cross-origin or stricter referrer handling, and evaluate Trusted Types/origin isolation for this script-heavy app.", "priority": 20, "findingIds": [ "F024" ], "guidanceId": "security", "status": "open" }, { "id": "T021", "title": "Server-render core prices, headings, article links and summaries, then hydrate enhancements so no-JS and constrained clients receive the primary information.", "priority": 21, "findingIds": [ "F025" ], "guidanceId": "stabilize-reactive-state", "status": "open" }, { "id": "T022", "title": "Visually separate paid placements, use persistent prominent ad labels, and ensure ads cannot be mistaken for finance reporting or primary controls.", "priority": 22, "findingIds": [ "F028" ], "guidanceId": "search-hidden-content", "status": "open" }, { "id": "T023", "title": "Generate responsive modern-format variants, declare srcset/sizes and intrinsic dimensions, and verify actual rendered resolution at each container width.", "priority": 23, "findingIds": [ "F029" ], "guidanceId": "deliver-optimized-decorative-images", "status": "open" }, { "id": "T024", "title": "Deprioritize or cancel background fetches when hidden, batch analytics, and avoid loading bidder/ad code for slots unlikely to enter the viewport.", "priority": 24, "findingIds": [ "F030" ], "guidanceId": "deprioritize-background-fetches", "status": "open" }, { "id": "T025", "title": "Define an explicit agent policy; if safe access is intended, expose read-only structured quote/search tools with scoped schemas and allow appropriate crawlers instead of requiring screen scraping.", "priority": 25, "findingIds": [ "F032" ], "guidanceId": "webmcp", "status": "open" }, { "id": "T026", "title": "Repeat a controlled open/close or search/reset cycle with forced GC and baseline/target/final snapshots, then remove retained listeners, detached trees or unbounded feed caches identified by retaining paths.", "priority": 26, "findingIds": [ "F033" ], "guidanceId": "manage-recurring-intervals", "status": "open" }, { "id": "T027", "title": "Declare color-scheme and provide preference-driven 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