{ "url": "https://archive.org", "auditedAt": "2026-07-20T09:27:32.131Z", "mode": "report", "status": "completed", "statusDetail": "Coverage complete. Remote site audit; no source changes requested.", "page": { "appType": "hybrid", "framework": "Lit/Web Components homepage plus server-rendered legacy detail templates", "notes": "Representative set covers entry/search, collection listing, media item and account signup. Not covered: authenticated account management, uploads, donations, borrowing checkout, or Wayback capture submission because they require side effects/authentication or are separate high-risk journeys." }, "evidenceUsed": [ "screenshot", "dom", "evaluate-probe", "layout-metrics", "trace", "har", "discoverability", "headers", "cookies", "trackers", "secrets", "heap-summary", "lighthouse", "robots/sitemap fetch" ], "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", "declarative-button-actions" ], "artifacts": [ { "type": "screenshot", "path": "evidence/home-loaded.png", "caption": "home loaded", "findingIds": [] }, { "type": "other", "path": "evidence/home-dark-probe.json", "caption": "home dark probe", "findingIds": [ "F1" ] }, { "type": "other", "path": "evidence/home-interaction-probe.json", "caption": "home interaction probe", "findingIds": [ "F2" ] }, { "type": "layout", "path": "evidence/home-mobile-layout.json", "caption": "home mobile layout", "findingIds": [] }, { "type": "layout", "path": "evidence/home-layout.json", "caption": "home layout", "findingIds": [] }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "home trace summary", "findingIds": [ "F4" ] }, { "type": "har-summary", "path": "evidence/home-summary.json", "caption": "home summary", "findingIds": [ "F4" ] }, { "type": "har-summary", "path": "evidence/home-lh-summary.json", "caption": "home lh summary", "findingIds": [ "F4", "F5" ] }, { "type": "dom", "path": "evidence/home-deep-recon.json", "caption": "home deep recon", "findingIds": [] }, { "type": "other", "path": "evidence/home-metadata.json", "caption": "home metadata", "findingIds": [] }, { "type": "discoverability", "path": "evidence/home-discoverability.json", "caption": "home discoverability", "findingIds": [ "F7" ] }, { "type": "screenshot", "path": "evidence/home-discoverability-crawler.png", "caption": "home discoverability crawler", "findingIds": [ "F7" ] }, { "type": "screenshot", "path": "evidence/home-discoverability-rendered.png", "caption": "home discoverability rendered", "findingIds": [ "F7" ] }, { "type": "other", "path": "evidence/home-headers.json", "caption": "home headers", "findingIds": [ "F8" ] }, { "type": "other", "path": "evidence/home-cookies.json", "caption": "home cookies", "findingIds": [] }, { "type": "other", "path": "evidence/home-trackers.json", "caption": "home trackers", "findingIds": [] }, { "type": "other", "path": "evidence/home-secrets.json", "caption": "home secrets", "findingIds": [] }, { "type": "heap", "path": "evidence/home-heap-baseline.json", "caption": "home heap baseline", "findingIds": [ "F12" ] }, { "type": "heap", "path": "evidence/home-heap-post.json", "caption": "home heap post", "findingIds": [ "F12" ] }, { "type": "screenshot", "path": "evidence/item-desktop.png", "caption": "item desktop", "findingIds": [ "F3" ] }, { "type": "layout", "path": "evidence/item-mobile-layout.json", "caption": "item mobile layout", "findingIds": [] }, { "type": "discoverability", "path": "evidence/item-discoverability.json", "caption": "item discoverability", "findingIds": [ "F7" ] }, { "type": "other", "path": "evidence/item-metadata.json", "caption": "item metadata", "findingIds": [] }, { "type": "lighthouse", "path": "evidence/item-lh-summary.json", "caption": "item lh summary", "findingIds": [ "F4", "F6", "F11" ] }, { "type": "screenshot", "path": "evidence/movies-desktop.png", "caption": "movies desktop", "findingIds": [ "F3" ] }, { "type": "screenshot", "path": "evidence/search-desktop.png", "caption": "search desktop", "findingIds": [ "F3" ] }, { "type": "screenshot", "path": "evidence/account-signup.png", "caption": "account signup", "findingIds": [ "F10" ] }, { "type": "other", "path": "evidence/account-signup-deep-probe.json", "caption": "account signup deep probe", "findingIds": [ "F10" ] }, { "type": "other", "path": "evidence/signup-validation.json", "caption": "signup validation", "findingIds": [] }, { "type": "other", "path": "evidence/item-i18n-probe.json", "caption": "item i18n probe", "findingIds": [ "F9" ] }, { "type": "other", "path": "evidence/home-capabilities.json", "caption": "home capabilities", "findingIds": [] }, { "type": "other", "path": "evidence/robots.txt", "caption": "robots", "findingIds": [] }, { "type": "other", "path": "evidence/sitemap-index.xml", "caption": "sitemap index", "findingIds": [] }, { "type": "discoverability", "path": "evidence/movies-discoverability.json", "caption": "movies discoverability", "findingIds": [ "F7" ] }, { "type": "screenshot", "path": "evidence/movies-discoverability-crawler.png", "caption": "movies discoverability crawler", "findingIds": [ "F7" ] }, { "type": "screenshot", "path": "evidence/home-forced-colors.png", "caption": "home forced colors", "findingIds": [] }, { "type": "layout", "path": "evidence/movies-mobile-layout.json", "caption": "movies mobile layout", "findingIds": [] }, { "type": "layout", "path": "evidence/search-mobile-layout.json", "caption": "search mobile layout", "findingIds": [] }, { "type": "other", "path": "evidence/404-response-headers.txt", "caption": "404 response headers", "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": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "With prefers-color-scheme: dark active, the computed probe reported color-scheme: normal, body background rgb(251,251,253), and text rgb(44,44,44), the same light palette.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dark-probe.json" ], "findingIds": [ "F1" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Reduced-motion emulation was active and the deep animation probe found zero running animations.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-interaction-probe.json" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Forced-colors capture preserved the top navigation and controls; Lighthouse contrast checks did not fail.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-forced-colors.png", "evidence/home-lh-summary.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "The deep style probe found elements with non-none view-transition names and no blocking main-thread animation.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-interaction-probe.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement after representative-path recon", "evidence": "No scroll-linked decorative animation is part of the tested core experience.", "reason": "No scroll-linked decorative animation is part of the tested core experience." }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Mobile captures use native scrolling with no horizontal overflow; no custom pointer-drag dependency blocked navigation.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile-layout.json" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Homepage navigation remains compact while content scrolls and the tested scrolling produced no long tasks.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-loaded.png", "evidence/home-layout.json" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement after representative-path recon", "evidence": "No tooltip, contextual popover, or anchored overlay was encountered on the representative paths.", "reason": "No tooltip, contextual popover, or anchored overlay was encountered on the representative paths." }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Screenshots show clear search, content headings, active search tab and selected result-view controls.", "pathIds": [ "home", "search" ], "artifacts": [ "evidence/home-loaded.png", "evidence/search-desktop.png" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "No interstitial or unsolicited modal obscured any tested first viewport.", "pathIds": [ "home", "item", "signup" ], "artifacts": [ "evidence/home-loaded.png", "evidence/item-desktop.png", "evidence/account-signup.png" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "No blocking custom modal appeared; menus and native media controls remained dismissible/navigable in the tested states.", "pathIds": [ "home", "item" ], "artifacts": [ "evidence/home-deep-recon.json", "evidence/item-desktop.png" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "The first view prioritizes Wayback search/library content; item view gives most space to media and metadata.", "pathIds": [ "home", "item" ], "artifacts": [ "evidence/home-loaded.png", "evidence/item-desktop.png" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "All four mobile layout captures reported horizontalOverflowPx: 0 at 360px.", "pathIds": [ "home", "movies", "item", "search" ], "artifacts": [ "evidence/home-mobile-layout.json", "evidence/item-mobile-layout.json", "evidence/movies-mobile-layout.json", "evidence/search-mobile-layout.json" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "At 360px, tested templates fit the viewport with no horizontal overflow and the item content stacks vertically.", "pathIds": [ "home", "item" ], "artifacts": [ "evidence/item-mobile-layout.json", "evidence/home-mobile-layout.json" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "The focus probe programmatically focused the first 30 controls; Wayback Machine, Texts, Video, Audio, Software, Images and several menu links computed outline-style:none, while Sign up and Log in had 0px outlines.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-interaction-probe.json" ], "findingIds": [ "F2" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Homepage and signup screenshots state the service purpose and present clear search/signup actions.", "pathIds": [ "home", "signup" ], "artifacts": [ "evidence/home-loaded.png", "evidence/account-signup.png" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "After 8 seconds the Movies listing remained on an unlabeled spinner, search for “public domain” showed 0 results, and the item player displayed “failed to load (Error Code: 101104)” with no retry action.", "pathIds": [ "movies" ], "artifacts": [ "evidence/movies-desktop.png", "evidence/search-desktop.png", "evidence/item-desktop.png" ], "findingIds": [ "F3" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "After 8 seconds the Movies listing remained on an unlabeled spinner, search for “public domain” showed 0 results, and the item player displayed “failed to load (Error Code: 101104)” with no retry action.", "pathIds": [ "movies" ], "artifacts": [ "evidence/movies-desktop.png", "evidence/search-desktop.png", "evidence/item-desktop.png" ], "findingIds": [ "F3" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "Mobile Lighthouse measured homepage LCP 16.34s (performance 0.56) and item-page LCP 20.23s (performance 0.54); the item LCP image had a 15.81s discovery delay and no fetchpriority=high.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lh-summary.json", "evidence/item-lh-summary.json", "evidence/home-trace-summary.json", "evidence/home-summary.json" ], "findingIds": [ "F4" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Observed CLS was 0.0056 desktop, 0.0010 mobile, and 0.00004 on the mobile item page.", "pathIds": [ "home", "item" ], "artifacts": [ "evidence/home-layout.json", "evidence/home-mobile-layout.json", "evidence/item-mobile-layout.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Trace reported zero long tasks and 0ms total blocking time; Lighthouse TBT was 14ms homepage and 95ms item.", "pathIds": [ "home", "item" ], "artifacts": [ "evidence/home-trace-summary.json", "evidence/home-lh-summary.json", "evidence/item-lh-summary.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "Mobile Lighthouse measured homepage LCP 16.34s (performance 0.56) and item-page LCP 20.23s (performance 0.54); the item LCP image had a 15.81s discovery delay and no fetchpriority=high.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lh-summary.json", "evidence/item-lh-summary.json", "evidence/home-trace-summary.json", "evidence/home-summary.json" ], "findingIds": [ "F4" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "HAR transferred 309KB over 38 requests; Lighthouse did not emit unused-code or duplicated-JS failures in the summarized failed audits.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/home-lh-summary.json" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "Lighthouse reported heading-order failures and label-content-name-mismatch on collection tile links, where aria-label did not include the full visible text.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lh-summary.json" ], "findingIds": [ "F5" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Lighthouse accessibility scores were 0.99 and 0.96 and no contrast failure was reported; forced-colors capture remained legible.", "pathIds": [ "home", "item" ], "artifacts": [ "evidence/home-lh-summary.json", "evidence/item-lh-summary.json", "evidence/home-forced-colors.png" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "The focus probe programmatically focused the first 30 controls; Wayback Machine, Texts, Video, Audio, Software, Images and several menu links computed outline-style:none, while Sign up and Log in had 0px outlines. Lighthouse reported heading-order failures and label-content-name-mismatch on collection tile links, where aria-label did not include the full visible text.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-interaction-probe.json", "evidence/home-lh-summary.json" ], "findingIds": [ "F2", "F5" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Screenshots show readable body text, headings, labels and controls without clipped text in tested first views.", "pathIds": [ "home", "item", "signup" ], "artifacts": [ "evidence/home-loaded.png", "evidence/item-desktop.png", "evidence/account-signup.png" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "Lighthouse measured fullscreen, mute, and playback-speed controls at 15×12 CSS px with insufficient spacing, below its 24×24 minimum.", "pathIds": [ "item" ], "artifacts": [ "evidence/item-lh-summary.json" ], "findingIds": [ "F6" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Lighthouse best-practices scored 1.0 on both tested templates and reported no console-error audit failure.", "pathIds": [ "home", "item" ], "artifacts": [ "evidence/home-lh-summary.json", "evidence/item-lh-summary.json" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "DOM probe confirmed HTML doctype, UTF-8 charset, viewport metadata and deferred/module scripts; CLS remained low.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-metadata.json", "evidence/home-layout.json" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Lighthouse best-practices scored 1.0 on both homepage and item; no deprecated-API/paste/permission-on-load failure was surfaced.", "pathIds": [ "home", "item" ], "artifacts": [ "evidence/home-lh-summary.json", "evidence/item-lh-summary.json" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Homepage and item metadata probes found descriptive, route-specific titles and meta descriptions.", "pathIds": [ "home", "item" ], "artifacts": [ "evidence/home-metadata.json", "evidence/item-metadata.json" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Viewport metadata is present, deep recon found real href links, and robots.txt permits public content outside control/report.", "pathIds": [ "home", "item" ], "artifacts": [ "evidence/home-deep-recon.json", "evidence/home-mobile-layout.json", "evidence/robots.txt" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "The item has a canonical URL, public pages returned 200, robots permits them, and the sitemap index is available.", "pathIds": [ "item" ], "artifacts": [ "evidence/item-metadata.json", "evidence/robots.txt", "evidence/sitemap-index.xml" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Homepage includes WebSite/SearchAction JSON-LD; item includes JSON-LD plus complete Open Graph title, description, image and video metadata.", "pathIds": [ "home", "item" ], "artifacts": [ "evidence/home-metadata.json", "evidence/item-metadata.json" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "The headers probe found a CSP with default-src *, style-src unsafe-inline and no frame-ancestors, plus missing X-Content-Type-Options and Permissions-Policy. HSTS was present.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json" ], "findingIds": [ "F8" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Tracker probe found zero known trackers/third-party origins; HAR attributed 0 transferred bytes to the only nominal third-party origin.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-trackers.json", "evidence/home-summary.json" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "No permission prompts or allow-bearing iframes appeared on load; signup offers established Google and email-code paths.", "pathIds": [ "home", "signup" ], "artifacts": [ "evidence/home-capabilities.json", "evidence/account-signup.png" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "The headers probe found a CSP with default-src *, style-src unsafe-inline and no frame-ancestors, plus missing X-Content-Type-Options and Permissions-Policy. HSTS was present.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json" ], "findingIds": [ "F8" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "Raw homepage/listing HTML is a bare plus a “Javascript is required” message. Discoverability found only 33% shared words, no raw H1, and crawler screenshots contain no library content; the item template, by contrast, reached 96%.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-discoverability.json", "evidence/home-discoverability-crawler.png", "evidence/home-discoverability-rendered.png", "evidence/movies-discoverability.json", "evidence/movies-discoverability-crawler.png", "evidence/item-discoverability.json" ], "findingIds": [ "F7" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "The 404 endpoint returns a real 404 and tested responsive layouts remained stable; no viewport-edge overlay failure was encountered.", "pathIds": [ "home" ], "artifacts": [ "evidence/404-response-headers.txt", "evidence/home-mobile-layout.json" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement after representative-path recon", "evidence": "Archive.org is a network-dependent public digital library and exposes no install intent; offline/installability is contextual here.", "reason": "Archive.org is a network-dependent public digital library and exposes no install intent; offline/installability is contextual here." }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "After 8 seconds the Movies listing remained on an unlabeled spinner, search for “public domain” showed 0 results, and the item player displayed “failed to load (Error Code: 101104)” with no retry action.", "pathIds": [ "movies" ], "artifacts": [ "evidence/movies-desktop.png", "evidence/search-desktop.png", "evidence/item-desktop.png" ], "findingIds": [ "F3" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "issues", "confidence": "medium", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "The item showed ISO date 2009-12-09 and comma-grouped 457,169; stylesheet inspection found 395 physical left properties versus 6 logical inline properties, despite a global public audience.", "pathIds": [ "item" ], "artifacts": [ "evidence/item-i18n-probe.json" ], "findingIds": [ "F9" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "issues", "confidence": "medium", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "The item showed ISO date 2009-12-09 and comma-grouped 457,169; stylesheet inspection found 395 physical left properties versus 6 logical inline properties, despite a global public audience.", "pathIds": [ "item" ], "artifacts": [ "evidence/item-i18n-probe.json" ], "findingIds": [ "F9" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement after representative-path recon", "evidence": "The representative public paths expose archival dates but no scheduling or cross-time-zone event workflow.", "reason": "The representative public paths expose archival dates but no scheduling or cross-time-zone event workflow." }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Signup clearly offers Google, email-code and email/password options with a visible log-in alternative; no forced consent or preselected marketing was visible.", "pathIds": [ "signup" ], "artifacts": [ "evidence/account-signup.png", "evidence/account-signup-deep-probe.json" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Submitting empty signup fields invoked native, field-specific “Please fill in this field” messages for email, screen name and password.", "pathIds": [ "signup" ], "artifacts": [ "evidence/signup-validation.json" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "The signup probe found email and screen-name inputs with empty autocomplete values, and the new account password field used autocomplete=current-password instead of new-password.", "pathIds": [ "signup" ], "artifacts": [ "evidence/account-signup.png", "evidence/account-signup-deep-probe.json" ], "findingIds": [ "F10" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "The signup probe found email and screen-name inputs with empty autocomplete values, and the new account password field used autocomplete=current-password instead of new-password.", "pathIds": [ "signup" ], "artifacts": [ "evidence/account-signup.png", "evidence/account-signup-deep-probe.json" ], "findingIds": [ "F10" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "Lighthouse’s LCP discovery insight reported priorityHinted:false for the video preview image; resource-load delay was 15.81s.", "pathIds": [ "item" ], "artifacts": [ "evidence/item-lh-summary.json" ], "findingIds": [ "F11" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Layout/trace captured no long tasks, and tracker/HAR evidence showed no repeated third-party background traffic in the observation window.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-trace-summary.json", "evidence/home-summary.json" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "HAR showed 309KB transferred and no third-party byte payload; no autoplaying media was observed on load.", "pathIds": [ "home", "item" ], "artifacts": [ "evidence/home-summary.json", "evidence/item-desktop.png" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "issues", "confidence": "high", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "Raw homepage/listing HTML is a bare plus a “Javascript is required” message. Discoverability found only 33% shared words, no raw H1, and crawler screenshots contain no library content; the item template, by contrast, reached 96%.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-discoverability.json", "evidence/home-discoverability-crawler.png", "evidence/home-discoverability-rendered.png", "evidence/movies-discoverability.json", "evidence/movies-discoverability-crawler.png", "evidence/item-discoverability.json" ], "findingIds": [ "F7" ] }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement after representative-path recon", "evidence": "No page task requires on-device summarisation or language-model inference; this contextual capability is not part of the observed product intent.", "reason": "No page task requires on-device summarisation or language-model inference; this contextual capability is not part of the observed product intent." }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "issues", "confidence": "medium", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "Baseline heap summary was 126,348 nodes / 7.36 MB self size; after ten bottom/top scroll cycles it was 166,653 nodes / 10.91 MB, a 32% node and 48% size increase. No Detached* constructor appeared, so the source of retention is not established.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-heap-baseline.json", "evidence/home-heap-post.json" ], "findingIds": [ "F12" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "issues", "confidence": "medium", "method": "Active evidence capture and model judgement against mapped Modern Web Guidance", "evidence": "Baseline heap summary was 126,348 nodes / 7.36 MB self size; after ten bottom/top scroll cycles it was 166,653 nodes / 10.91 MB, a 32% node and 48% size increase. No Detached* constructor appeared, so the source of retention is not established.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-heap-baseline.json", "evidence/home-heap-post.json" ], "findingIds": [ "F12" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "medium", "method": "Active visual, DOM, Lighthouse, layout, or network probe as specified", "evidence": "Neither baseline nor post-interaction heap summary listed a Detached* constructor; closure count rose only from 7,993 to 8,256.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-heap-baseline.json", "evidence/home-heap-post.json" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "F1" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "pass" }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "pass" }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "pass" }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F2" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "issues", "findingIds": [ "F3" ] }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F4" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F5", "F2", "F6" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "pass" }, { "principleId": "be-discoverable", "expectation": "default", "status": "pass" }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F8" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "issues", "findingIds": [ "F7", "F3" ] }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "issues", "findingIds": [ "F9" ] }, { "principleId": "be-trustworthy", "expectation": "default", "status": "issues", "findingIds": [ "F10" ] }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F11" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "issues", "findingIds": [ "F7" ] }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "issues", "findingIds": [ "F12" ] } ], "paths": [ { "id": "home", "description": "Homepage and Wayback/library entry surface; covers global navigation, preferences, search affordance, performance and crawlability.", "url": "https://archive.org/", "conditions": [ "desktop", "360x800", "prefers-color-scheme: dark", "prefers-reduced-motion: reduce", "forced-colors", "keyboard focus", "JavaScript disabled", "10 repeated scroll cycles" ], "result": "issues" }, { "id": "movies", "description": "Movies collection listing representing browse/listing templates and async loading.", "url": "https://archive.org/details/movies", "conditions": [ "desktop", "360x800", "JavaScript disabled" ], "result": "issues" }, { "id": "search", "description": "Public-domain query representing the primary search-results journey.", "url": "https://archive.org/search?query=public%20domain", "conditions": [ "desktop", "360x800" ], "result": "issues" }, { "id": "item", "description": "Big Buck Bunny media detail representing item metadata, playback, social/discoverability and media delivery.", "url": "https://archive.org/details/BigBuckBunny_328", "conditions": [ "desktop", "360x800", "JavaScript disabled", "Lighthouse mobile" ], "result": "issues" }, { "id": "signup", "description": "Account signup representing forms, authentication choices, autofill, validation and trust.", "url": "https://archive.org/signup", "conditions": [ "desktop", "empty submit validation" ], "result": "issues" } ], "findings": [ { "id": "F1", "severity": "medium", "confidence": "high", "summary": "The site does not adapt its main surfaces to the user’s dark color-scheme preference.", "evidence": "With prefers-color-scheme: dark active, the computed probe reported color-scheme: normal, body background rgb(251,251,253), and text rgb(44,44,44), the same light palette.", "artifacts": [ "evidence/home-dark-probe.json" ], "suggestedFix": "Declare color-scheme: light dark and map shared surface/text tokens through prefers-color-scheme or light-dark(), including shadow-root components.", "effort": "medium", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "user-experience", "pathId": "home", "url": "https://archive.org/" }, { "id": "F2", "severity": "high", "confidence": "high", "summary": "Keyboard focus is invisible on many primary navigation links.", "evidence": "The focus probe programmatically focused the first 30 controls; Wayback Machine, Texts, Video, Audio, Software, Images and several menu links computed outline-style:none, while Sign up and Log in had 0px outlines.", "artifacts": [ "evidence/home-interaction-probe.json" ], "suggestedFix": "Use :focus-visible to provide a high-contrast, non-clipped focus indicator on every interactive element, including links inside shadow roots.", "effort": "medium", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "pathId": "home", "url": "https://archive.org/" }, { "id": "F3", "severity": "high", "confidence": "high", "summary": "Primary browse, search, and playback journeys can stall or fail without useful recovery.", "evidence": "After 8 seconds the Movies listing remained on an unlabeled spinner, search for “public domain” showed 0 results, and the item player displayed “failed to load (Error Code: 101104)” with no retry action.", "artifacts": [ "evidence/movies-desktop.png", "evidence/search-desktop.png", "evidence/item-desktop.png" ], "suggestedFix": "Give all async surfaces bounded loading states, explicit error/empty distinctions, Retry controls, and a direct download/fallback path when playback fails.", "effort": "large", "principleId": "support-core-task-success", "principleCheckId": "primary-flow-completion", "guidanceId": "persistent-toast-notifications", "guidanceCategory": "user-experience", "pathId": "movies", "url": "https://archive.org/details/movies" }, { "id": "F4", "severity": "high", "confidence": "high", "summary": "Core content paints far too late on both the homepage and a representative item page.", "evidence": "Mobile Lighthouse measured homepage LCP 16.34s (performance 0.56) and item-page LCP 20.23s (performance 0.54); the item LCP image had a 15.81s discovery delay and no fetchpriority=high.", "artifacts": [ "evidence/home-lh-summary.json", "evidence/item-lh-summary.json", "evidence/home-trace-summary.json", "evidence/home-summary.json" ], "suggestedFix": "Shorten critical request chains, server-render the first viewport, defer noncritical modules, and eagerly prioritize the actual LCP image with fetchpriority=high.", "effort": "large", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "optimize-image-priority", "guidanceCategory": "performance", "pathId": "home", "url": "https://archive.org/" }, { "id": "F5", "severity": "medium", "confidence": "high", "summary": "Homepage collection tiles and heading structure expose accessibility defects.", "evidence": "Lighthouse reported heading-order failures and label-content-name-mismatch on collection tile links, where aria-label did not include the full visible text.", "artifacts": [ "evidence/home-lh-summary.json" ], "suggestedFix": "Use a sequential heading hierarchy and derive each tile’s accessible name from its visible label rather than overriding it with a divergent aria-label.", "effort": "medium", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "pathId": "home", "url": "https://archive.org/" }, { "id": "F6", "severity": "medium", "confidence": "high", "summary": "Item player controls have undersized touch targets.", "evidence": "Lighthouse measured fullscreen, mute, and playback-speed controls at 15×12 CSS px with insufficient spacing, below its 24×24 minimum.", "artifacts": [ "evidence/item-lh-summary.json" ], "suggestedFix": "Increase the interactive hit area and spacing of player controls to at least 24×24 CSS px, preferably 44×44 for touch comfort.", "effort": "small", "principleId": "be-inclusive", "principleCheckId": "zoom-reflow-targets-and-media", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "pathId": "item", "url": "https://archive.org/details/BigBuckBunny_328" }, { "id": "F7", "severity": "medium", "confidence": "high", "summary": "Homepage and listing content is effectively unavailable without JavaScript.", "evidence": "Raw homepage/listing HTML is a bare plus a “Javascript is required” message. Discoverability found only 33% shared words, no raw H1, and crawler screenshots contain no library content; the item template, by contrast, reached 96%.", "artifacts": [ "evidence/home-discoverability.json", "evidence/home-discoverability-crawler.png", "evidence/home-discoverability-rendered.png", "evidence/movies-discoverability.json", "evidence/movies-discoverability-crawler.png", "evidence/item-discoverability.json" ], "suggestedFix": "Server-render meaningful headings, search/browse links and representative collection content, then progressively enhance the interactive shell.", "effort": "large", "principleId": "be-resilient", "principleCheckId": "progressive-enhancement", "guidanceId": "css", "guidanceCategory": "css", "pathId": "home", "url": "https://archive.org/" }, { "id": "F8", "severity": "high", "confidence": "high", "summary": "Defensive browser policies leave avoidable XSS, MIME-sniffing, framing, and feature-control exposure.", "evidence": "The headers probe found a CSP with default-src *, style-src unsafe-inline and no frame-ancestors, plus missing X-Content-Type-Options and Permissions-Policy. HSTS was present.", "artifacts": [ "evidence/home-headers.json" ], "suggestedFix": "Tighten CSP allowlists, add frame-ancestors, send X-Content-Type-Options: nosniff, and define a least-privilege Permissions-Policy.", "effort": "medium", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "guidanceId": "security", "guidanceCategory": "security", "pathId": "home", "url": "https://archive.org/" }, { "id": "F9", "severity": "medium", "confidence": "medium", "summary": "Internationalisation support is partial and the tested item renders locale-sensitive data in fixed formats.", "evidence": "The item showed ISO date 2009-12-09 and comma-grouped 457,169; stylesheet inspection found 395 physical left properties versus 6 logical inline properties, despite a global public audience.", "artifacts": [ "evidence/item-i18n-probe.json" ], "suggestedFix": "Format user-facing dates and numbers with Intl and migrate layout rules to logical properties so RTL/localized layouts remain usable.", "effort": "large", "principleId": "be-internationalised", "principleCheckId": "locale-aware-data", "guidanceId": "support-global-calendar-systems", "guidanceCategory": "internationalization", "pathId": "item", "url": "https://archive.org/details/BigBuckBunny_328" }, { "id": "F10", "severity": "medium", "confidence": "high", "summary": "Signup fields omit or misuse autofill purpose tokens.", "evidence": "The signup probe found email and screen-name inputs with empty autocomplete values, and the new account password field used autocomplete=current-password instead of new-password.", "artifacts": [ "evidence/account-signup.png", "evidence/account-signup-deep-probe.json" ], "suggestedFix": "Use autocomplete=email, username, and new-password on the corresponding signup controls; retain native required validation and visible labels.", "effort": "small", "principleId": "be-trustworthy", "principleCheckId": "trustworthy-input-assistance", "guidanceId": "autofill-sign-up-form", "guidanceCategory": "forms", "pathId": "signup", "url": "https://archive.org/signup" }, { "id": "F11", "severity": "medium", "confidence": "high", "summary": "The representative item’s LCP preview is not prioritized as a critical asset.", "evidence": "Lighthouse’s LCP discovery insight reported priorityHinted:false for the video preview image; resource-load delay was 15.81s.", "artifacts": [ "evidence/item-lh-summary.json" ], "suggestedFix": "Expose the preview as an image discoverable in initial HTML and apply fetchpriority=high while avoiding lazy loading.", "effort": "small", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "optimize-image-priority", "guidanceCategory": "performance", "pathId": "item", "url": "https://archive.org/details/BigBuckBunny_328" }, { "id": "F12", "severity": "medium", "confidence": "medium", "summary": "Heap retention grew substantially after repeated homepage scrolling.", "evidence": "Baseline heap summary was 126,348 nodes / 7.36 MB self size; after ten bottom/top scroll cycles it was 166,653 nodes / 10.91 MB, a 32% node and 48% size increase. No Detached* constructor appeared, so the source of retention is not established.", "artifacts": [ "evidence/home-heap-baseline.json", "evidence/home-heap-post.json" ], "suggestedFix": "Re-test infinite-scroll lifecycle in one instrumented session, cap retained tile data, unobserve discarded items, and release listeners/resources when cards leave the retained window.", "effort": "medium", "principleId": "be-memory-efficient", "principleCheckId": "no-leak-under-repeated-interaction", "guidanceId": "manage-recurring-intervals", "guidanceCategory": "performance", "pathId": "home", "url": "https://archive.org/" } ], "taskList": [ { "id": "T1", "title": "Shorten critical request chains, server-render the first viewport, defer noncritical modules, and eagerly prioritize the actual LCP image with fetchpriority=high.", "priority": 1, "findingIds": [ "F4" ], "guidanceId": "optimize-image-priority", "status": "open" }, { "id": "T2", "title": "Give all async surfaces bounded loading states, explicit error/empty distinctions, Retry controls, and a direct download/fallback path when playback fails.", "priority": 2, "findingIds": [ "F3" ], "guidanceId": "persistent-toast-notifications", "status": "open" }, { "id": "T3", "title": "Tighten CSP allowlists, add frame-ancestors, send X-Content-Type-Options: nosniff, and define a least-privilege Permissions-Policy.", "priority": 3, "findingIds": [ "F8" ], "guidanceId": "security", "status": "open" }, { "id": "T4", "title": "Server-render meaningful headings, search/browse links and representative collection content, then progressively enhance the interactive shell.", "priority": 4, "findingIds": [ "F7" ], "guidanceId": "css", "status": "open" }, { "id": "T5", "title": "Use :focus-visible to provide a high-contrast, non-clipped focus indicator on every interactive element, including links inside shadow roots.", "priority": 5, "findingIds": [ "F2" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T6", "title": "Use a sequential heading hierarchy and derive each tile’s accessible name from its visible label rather than overriding it with a divergent aria-label.", "priority": 6, "findingIds": [ "F5" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T7", "title": "Increase the interactive hit area and spacing of player controls to at least 24×24 CSS px, preferably 44×44 for touch comfort.", "priority": 7, "findingIds": [ "F6" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T8", "title": "Re-test infinite-scroll lifecycle in one instrumented session, cap retained tile data, unobserve discarded items, and release listeners/resources when cards leave the retained window.", "priority": 8, "findingIds": [ "F12" ], "guidanceId": "manage-recurring-intervals", "status": "open" }, { "id": "T9", "title": "Use autocomplete=email, username, and new-password on the corresponding signup controls; retain native required validation and visible labels.", "priority": 9, "findingIds": [ "F10" ], "guidanceId": "autofill-sign-up-form", "status": "open" }, { "id": "T10", "title": "Format user-facing dates and numbers with Intl and migrate layout rules to logical properties so RTL/localized layouts remain usable.", "priority": 10, "findingIds": [ "F9" ], "guidanceId": "support-global-calendar-systems", "status": "open" }, { "id": "T11", "title": "Expose the preview as an image discoverable in initial HTML and apply fetchpriority=high while avoiding lazy loading.", "priority": 11, "findingIds": [ "F11" ], "guidanceId": "optimize-image-priority", "status": "open" }, { "id": "T12", "title": "Declare color-scheme: light dark and map shared surface/text tokens through prefers-color-scheme or light-dark(), including shadow-root components.", "priority": 12, "findingIds": [ "F1" ], "guidanceId": "dark-mode", "status": "open" } ], "budget": { "pathCount": 5, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-20T09-27-32-131Z" }