{ "url": "https://www.nike.com", "auditedAt": "2026-07-21T00:04:59.734Z", "mode": "report", "status": "completed", "statusDetail": "58/58 atomic checks conclusively judged across five representative paths. Registration returned a user-facing Access Denied state and is reported as an issue, not omitted.", "page": { "appType": "hybrid", "framework": "Next.js plus React micro-frontends", "notes": "Public localized global commerce site. Homepage, listing, PDP and help are server-rendered/hydrated; account auth is a separate origin." }, "evidenceUsed": [ "screenshot", "transition-video", "layout-metrics", "dom+computed-css", "evaluate-probe", "trace", "har", "discoverability", "headers", "cookies", "trackers", "secrets", "images", "lighthouse", "heap-summary", "robots/sitemap fetch", "primary-flow interaction" ], "guidanceConsulted": [ "dark-mode", "component-specific-light-dark-theme", "accessibility", "adapt-scrollbar-to-contrast-preferences", "same-document-transitions", "cross-document-transitions", "group-element-transitions", "faster-spa-view-transitions", "scrollytelling", "parallax-scroll-effects", "scroll-entry-exit-effects", "carousel-slide-effects", "physics-based-easing", "individual-transform-properties", "animate-element-entry-exit", "animate-to-from-top-layer", "animate-to-intrinsic-sizes", "dynamic-sibling-animations", "interactive-content-reveal", "pull-to-reveal", "swipe-to-remove", "shrinking-header-on-scroll", "scroll-progress-indicator", "scroll-position-aware-elements", "scroll-snap-realtime-feedback", "scroll-snap-state-sync", "scroll-target-on-load", "soft-edge-content-fade", "scrollability-affordance-hints", "anchor-positioning-tab-underline", "position-aware-tooltips", "interest-triggered-tooltips", "interest-triggered-action-previews", "directional-navigation-transitions", "carousel-snap-highlights", "navigation-drawer", "stack-drill-down", "persistent-app-tours", "persistent-toast-notifications", "light-dismiss-a-dialog", "platform-controls-dismiss-dialog", "declarative-dialog-popover-control", "animated-select-picker", "branded-select-styling", "brand-consistent-forms", "custom-select-picker-layouts", "rich-media-picker", "complex-shapes", "shaped-cutouts", "overflow-clipping-control", "visually-texture-content", "apply-webgl-shaders", "interactive-content-in-3d-scenes", "highlight-text-ranges", "prevent-text-wrapping", "customize-scrollbar-color-and-thickness", "export-html-media-from-canvas", "fluid-scaling", "calculate-with-intrinsic-sizes", "css-layout", "size-aware-styling", "content-based-styling", "child-state-based-styling", "design-token-reactivity", "dynamic-sibling-styling", "form-fields-automatically-fit-contents", "improve-text-layout-and-legibility", "forms", "accessible-error-announcement", "required-field-feedback", "validate-input-after-interaction", "identify-inp-causes", "schedule-tasks-by-priority", "optimize-preload-priority", "improve-next-page-load-performance", "interactions-in-complex-layouts", "performance", "visually-stable-font-fallbacks", "break-up-long-tasks", "identify-heavy-scripts", "optimize-script-priority", "defer-rendering-heavy-content", "defer-work-until-scroll-ends", "optimize-image-priority", "conditional-async-dependencies", "expose-canvas-content-to-browser-features", "move-dom-element-without-losing-state", "precise-text-alignment", "visually-stable-mixed-fonts", "css", "html", "reduce-style-repetition", "security", "privacy", "batch-analytics-events", "full-session-analytics", "calculate-total-foreground-time", "passkeys", "passkey-registration", "passkey-authentication", "passkey-reauthentication", "passkey-conditional-create", "passkey-management", "flicker-free-client-side-ab-testing", "consistent-cross-document-transitions", "stabilize-reactive-state", "resilient-context-menus-and-nested-dropdowns", "persistent-top-layer-ui", "detect-initial-visibility-state", "sequence-distributed-events", "translator", "language-detection", "support-global-calendar-systems", "capture-location-agnostic-data", "format-human-readable-durations", "manage-recurring-intervals", "calculate-event-differentials", "coordinate-global-events", "model-partial-time-concepts", "search-hidden-content", "select-menu-interaction", "style-parent-with-has", "autofill-address-form", "autofill-payment-form", "autofill-sign-in-form", "autofill-sign-up-form", "autofill-highlight-inputs", "deliver-optimized-decorative-images", "resolution-optimized-pseudo-elements", "deprioritize-background-fetches", "efficient-background-processing", "webmcp", "agentic-forms", "agentic-javascript-tools", "language-model", "summarizer" ], "artifacts": [ { "type": "dom", "path": "evidence/help-probe.json", "caption": "help probe", "findingIds": [ "F23", "F25" ] }, { "type": "video", "path": "evidence/help-underlying.mp4", "caption": "help underlying" }, { "type": "screenshot", "path": "evidence/help-underlying.png", "caption": "help underlying" }, { "type": "screenshot", "path": "evidence/home-contrast.png", "caption": "home contrast" }, { "type": "other", "path": "evidence/home-cookies.json", "caption": "home cookies", "findingIds": [ "F19" ] }, { "type": "dom", "path": "evidence/home-dark-probe.json", "caption": "home dark probe", "condition": "prefers-color-scheme: dark", "findingIds": [ "F01" ] }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "home dark", "condition": "prefers-color-scheme: dark", "findingIds": [ "F01" ] }, { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "home desktop", "findingIds": [ "F05" ] }, { "type": "screenshot", "path": "evidence/home-discoverability-crawler.png", "caption": "home discoverability crawler" }, { "type": "screenshot", "path": "evidence/home-discoverability-rendered.png", "caption": "home discoverability rendered" }, { "type": "discoverability", "path": "evidence/home-discoverability.json", "caption": "home discoverability", "findingIds": [ "F21" ] }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "home dom" }, { "type": "other", "path": "evidence/home-headers.json", "caption": "home headers", "findingIds": [ "F19" ] }, { "type": "other", "path": "evidence/home-images.json", "caption": "home images", "findingIds": [ "F17", "F26" ] }, { "type": "lighthouse", "path": "evidence/home-lighthouse-summary.json", "caption": "home lighthouse summary", "findingIds": [ "F06", "F10", "F11", "F14" ] }, { "type": "lighthouse", "path": "evidence/home-lighthouse.json", "caption": "home lighthouse", "findingIds": [ "F13", "F15", "F16", "F18", "F27" ] }, { "type": "layout", "path": "evidence/home-mobile-layout.json", "caption": "home mobile layout", "condition": "viewport: 360x800" }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "home mobile", "condition": "viewport: 360x800", "findingIds": [ "F05" ] }, { "type": "dom", "path": "evidence/home-probe.json", "caption": "home probe", "findingIds": [ "F02", "F03", "F06", "F07", "F14", "F15", "F23" ] }, { "type": "other", "path": "evidence/home-recon.json", "caption": "home recon" }, { "type": "other", "path": "evidence/home-reduced-motion.json", "caption": "home reduced motion" }, { "type": "other", "path": "evidence/home-secrets.json", "caption": "home secrets" }, { "type": "har-summary", "path": "evidence/home-summary.json", "caption": "home summary", "findingIds": [ "F12", "F16", "F20", "F22", "F27", "F28" ] }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "home trace summary", "findingIds": [ "F10", "F11", "F27" ] }, { "type": "trace", "path": "evidence/home-trace.json", "caption": "home trace" }, { "type": "other", "path": "evidence/home-trackers.json", "caption": "home trackers", "findingIds": [ "F20" ] }, { "type": "video", "path": "evidence/home-underlying.mp4", "caption": "home underlying", "findingIds": [ "F03" ] }, { "type": "screenshot", "path": "evidence/home-underlying.png", "caption": "home underlying", "findingIds": [ "F28" ] }, { "type": "har", "path": "evidence/home.har", "caption": "home", "findingIds": [ "F12", "F28" ] }, { "type": "layout", "path": "evidence/listing-mobile-layout.json", "caption": "listing mobile layout", "condition": "viewport: 360x800" }, { "type": "dom", "path": "evidence/listing-probe.json", "caption": "listing probe", "findingIds": [ "F02", "F04", "F07" ] }, { "type": "other", "path": "evidence/listing-recon.json", "caption": "listing recon" }, { "type": "video", "path": "evidence/listing-underlying.mp4", "caption": "listing underlying" }, { "type": "screenshot", "path": "evidence/listing-underlying.png", "caption": "listing underlying", "findingIds": [ "F04" ] }, { "type": "other", "path": "evidence/product-add-to-bag-flow-visible.json", "caption": "product add to bag flow visible", "findingIds": [ "F08", "F21", "F22", "F24" ] }, { "type": "other", "path": "evidence/product-add-to-bag-flow.json", "caption": "product add to bag flow" }, { "type": "screenshot", "path": "evidence/product-discoverability-crawler.png", "caption": "product discoverability crawler" }, { "type": "screenshot", "path": "evidence/product-discoverability-rendered.png", "caption": "product discoverability rendered" }, { "type": "discoverability", "path": "evidence/product-discoverability.json", "caption": "product discoverability", "findingIds": [ "F21" ] }, { "type": "heap", "path": "evidence/product-heap-baseline.json", "caption": "product heap baseline" }, { "type": "heap", "path": "evidence/product-heap-post.json", "caption": "product heap post" }, { "type": "other", "path": "evidence/product-images.json", "caption": "product images", "findingIds": [ "F17", "F26" ] }, { "type": "lighthouse", "path": "evidence/product-lighthouse-summary.json", "caption": "product lighthouse summary", "findingIds": [ "F08", "F10" ] }, { "type": "lighthouse", "path": "evidence/product-lighthouse.json", "caption": "product lighthouse" }, { "type": "other", "path": "evidence/product-memory-metrics.json", "caption": "product memory metrics" }, { "type": "layout", "path": "evidence/product-mobile-layout.json", "caption": "product mobile layout", "condition": "viewport: 360x800" }, { "type": "dom", "path": "evidence/product-probe.json", "caption": "product probe", "findingIds": [ "F02", "F07", "F14" ] }, { "type": "har-summary", "path": "evidence/product-summary.json", "caption": "product summary", "findingIds": [ "F08" ] }, { "type": "video", "path": "evidence/product-underlying.mp4", "caption": "product underlying" }, { "type": "screenshot", "path": "evidence/product-underlying.png", "caption": "product underlying" }, { "type": "har", "path": "evidence/product.har", "caption": "product" }, { "type": "screenshot", "path": "evidence/register-access-denied.png", "caption": "register access denied", "findingIds": [ "F09", "F22" ] }, { "type": "dom", "path": "evidence/register-probe.json", "caption": "register probe", "findingIds": [ "F09" ] }, { "type": "other", "path": "evidence/robots-txt.txt", "caption": "robots txt" } ], "config": { "loaded": false }, "coverage": { "catalogVersion": "modern-web-guidance@0.0.172", "catalogChecksum": "sha256:78ccfdb2d483f4c57d9dafed80fd86c6265585a56457c8dcfddc254b80fb44d7", "expected": 58, "recorded": 58, "judged": 58, "blocked": 0, "notRun": 0, "missing": 0, "unknown": 0, "duplicates": 0, "complete": true }, "checkOutcomes": [ { "principleId": "respect-user-preferences", "checkId": "respects-color-scheme", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "The dark-mode screenshot remains white and the dark probe reports html color-scheme \"normal\", body background rgb(255,255,255), and no prefers-color-scheme rules.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dark.png", "evidence/home-dark-probe.json" ], "findingIds": [ "F01" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Under prefers-reduced-motion: reduce, all sampled Web Animations were reduced to 0.01ms and finished.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-reduced-motion.json" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Forced-colors/high-contrast screenshot retained readable text, controls and visible links.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-contrast.png" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "issues", "confidence": "medium", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Rendered CSS inspection across homepage, listing and product found zero view-transition rules; navigation is an abrupt document/state swap.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json", "evidence/listing-probe.json", "evidence/product-probe.json" ], "findingIds": [ "F02" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "No scroll-linked parallax/scrollytelling effect was present; CSS had no scroll timelines and no main-thread scroll animation anti-pattern was observed.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Catalogue filters and product disclosures use native controls/details and the sampled horizontal content does not fight platform scrolling.", "pathIds": [ "home", "product", "listing" ], "artifacts": [ "evidence/listing-underlying.png", "evidence/product-probe.json" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "issues", "confidence": "medium", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "The underlying homepage video shows static header chrome, while CSS inspection found no scroll-state query or scroll timeline support.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-underlying.mp4", "evidence/home-probe.json" ], "findingIds": [ "F03" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "issues", "confidence": "medium", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "The listing exposes several anchored filter controls, but CSS inspection found zero anchor-name, position-anchor or position-try rules.", "pathIds": [ "listing" ], "artifacts": [ "evidence/listing-underlying.png", "evidence/listing-probe.json" ], "findingIds": [ "F04" ] }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Listing and product first views use clear headings, selected context and prominent next actions to maintain orientation.", "pathIds": [ "home", "listing" ], "artifacts": [ "evidence/listing-underlying.png" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Desktop and mobile screenshots show the cookie experience covering the content and requiring a choice before any product content can be seen.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ], "findingIds": [ "F05" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Lighthouse reports role=\"modal\" as invalid; the DOM has zero dialog elements and the cookie root uses a custom div role.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse-summary.json", "evidence/home-probe.json" ], "findingIds": [ "F06" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "After isolating the consent interruption, primary views devote most space to merchandising/product/help content with minimal borders.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-underlying.png", "evidence/help-underlying.png" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "All three mobile layout captures reported 360px scroll width, 360px visual viewport and 0 horizontal overflow.", "pathIds": [ "home", "product", "listing" ], "artifacts": [ "evidence/home-mobile-layout.json", "evidence/listing-mobile-layout.json", "evidence/product-mobile-layout.json" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "issues", "confidence": "medium", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "The sampled CSS contains zero @container rules across homepage, listing and product despite reusable cards, filters and global shell components.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json", "evidence/listing-probe.json", "evidence/product-probe.json" ], "findingIds": [ "F07" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Focusable links/buttons expose browser outlines or a 2px blue focus box; major action targets are large, while native radio labels provide a larger hit area.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "First-view screenshots clearly identify New Trainers & Gear, KD19 with price/Add to Bag, and the returns-policy answer.", "pathIds": [ "home", "product", "listing" ], "artifacts": [ "evidence/home-underlying.png", "evidence/listing-underlying.png", "evidence/product-underlying.png" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "After selecting visible size UK 3 and activating the visible enabled Add to Bag button, the bag accessible label stayed \"Bag Items: 0\" after seven seconds; HAR/Lighthouse also recorded cart API 403 and 404 responses.", "pathIds": [ "product" ], "artifacts": [ "evidence/product-add-to-bag-flow-visible.json", "evidence/product-summary.json", "evidence/product-lighthouse-summary.json" ], "findingIds": [ "F08" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "After selecting visible size UK 3 and activating the visible enabled Add to Bag button, the bag accessible label stayed \"Bag Items: 0\" after seven seconds; HAR/Lighthouse also recorded cart API 403 and 404 responses.", "pathIds": [ "product" ], "artifacts": [ "evidence/product-add-to-bag-flow-visible.json", "evidence/product-summary.json", "evidence/product-lighthouse-summary.json" ], "findingIds": [ "F08" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Mobile Lighthouse measured homepage LCP 13.9s, FCP 7.1s and TBT 830ms (performance 0.36); the product page measured LCP 20.7s and TBT 920ms (performance 0.35). The independent trace measured LCP 7.34s.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse-summary.json", "evidence/product-lighthouse-summary.json", "evidence/home-trace-summary.json" ], "findingIds": [ "F10" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Observed CLS was 0.028 home, 0.063 listing and 0.002 product at 360px, all below the 0.1 good threshold.", "pathIds": [ "home", "listing" ], "artifacts": [ "evidence/home-mobile-layout.json", "evidence/listing-mobile-layout.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "The trace found three long tasks, a 220.82ms longest task and 226.4ms TBT; Lighthouse measured 830-920ms TBT.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-trace-summary.json", "evidence/home-lighthouse-summary.json" ], "findingIds": [ "F11" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "The homepage HAR recorded 168 requests and 6,268,243 transferred bytes, including multiple VeryHigh parser-inserted stylesheets and High-priority scripts; the largest media segment was 2,032,200 bytes.", "pathIds": [ "home" ], "artifacts": [ "evidence/home.har", "evidence/home-summary.json" ], "findingIds": [ "F12" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Lighthouse estimated 86KB unused in the video player, 77KB in recommendation code, 56KB in chat, and 96.8% waste in one 62KB inline stylesheet.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse.json" ], "findingIds": [ "F13" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Lighthouse reports invalid role=\"modal\" and a menuitem without a required menu/menubar parent; probes found 2-5 unnamed buttons on sampled pages and dozens of empty-text links.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse-summary.json", "evidence/home-probe.json", "evidence/product-probe.json" ], "findingIds": [ "F14" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Lighthouse did not flag color-contrast and forced-colors retained visible content and controls.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse-summary.json", "evidence/home-contrast.png" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Lighthouse flags heading-order failures; the homepage probe shows an empty H1 followed by H3s, later another H1, and H4 groups without a consistent hierarchy.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/home-probe.json" ], "findingIds": [ "F15" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Help/article and commerce screenshots show readable sizing, line length and spacing without clipping.", "pathIds": [ "home" ], "artifacts": [ "evidence/help-underlying.png" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Viewport permits maximum-scale=2.0, mobile layouts reflow without horizontal overflow, and primary buttons are comfortably sized.", "pathIds": [ "home", "product" ], "artifacts": [ "evidence/home-mobile-layout.json", "evidence/product-mobile-layout.json" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Lighthouse captured cart API 403/404, a fingerprint endpoint 429, and an aborted unsupported Summarizer-language request.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/home-summary.json" ], "findingIds": [ "F16" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "The image primitive found all 19 homepage images and all 10 product images missing width/height attributes; the PDP hero was also oversized at 1872 natural pixels for a 780px display.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-images.json", "evidence/product-images.json" ], "findingIds": [ "F17" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Lighthouse reports three deprecations (Shared Storage, persistent StorageType and Protected Audience) and missing source maps for large first-party JavaScript.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse.json" ], "findingIds": [ "F18" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Homepage, listing, product and help pages each expose descriptive titles and meta descriptions.", "pathIds": [ "home", "product" ], "artifacts": [ "evidence/home-probe.json", "evidence/product-probe.json" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Representative links have real href values, viewport metadata is present, robots allows these public paths, and Lighthouse SEO scored 0.92.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json", "evidence/robots-txt.txt" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Pages returned 200, index/follow and canonical URLs; robots.txt lists seven specialized sitemap indexes.", "pathIds": [ "home", "product" ], "artifacts": [ "evidence/home-probe.json", "evidence/product-probe.json", "evidence/robots-txt.txt" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Homepage has WebPage JSON-LD/Open Graph and the PDP has detailed ProductGroup schema plus matching social metadata.", "pathIds": [ "home", "product" ], "artifacts": [ "evidence/home-probe.json", "evidence/product-probe.json" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Headers show a CSP limited to frame-ancestors, no X-Content-Type-Options and no Referrer-Policy. Cookie audit found four cookies without Secure, all eight with SameSite=None, and two 395-day identifiers.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json", "evidence/home-cookies.json" ], "findingIds": [ "F19" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Tracker capture found 12 non-www origins and New Relic; the HAR attributes 58 requests and 3,970,035 bytes to third-party origins on the homepage.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-trackers.json", "evidence/home-summary.json" ], "findingIds": [ "F20" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "No permission prompt appeared on load; authentication uses an OAuth authorization redirect with state and S256 PKCE parameters.", "pathIds": [ "home" ], "artifacts": [ "evidence/register-probe.json" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Headers show a CSP limited to frame-ancestors, no X-Content-Type-Options and no Referrer-Policy. Cookie audit found four cookies without Secure, all eight with SameSite=None, and two 395-day identifiers.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json", "evidence/home-cookies.json" ], "findingIds": [ "F19" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Discoverability found 54-61% raw-HTML content coverage and no JS shell, but the exercised add-to-bag operation silently failed when cart APIs returned errors.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-discoverability.json", "evidence/product-discoverability.json", "evidence/product-add-to-bag-flow-visible.json" ], "findingIds": [ "F21" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Native details-based disclosures and responsive layouts remained contained on sampled paths; no cut-off open overlay was observed.", "pathIds": [ "home", "product", "listing" ], "artifacts": [ "evidence/listing-probe.json", "evidence/product-probe.json" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative route recon and DOM/runtime probes.", "evidence": "The sampled public commerce pages expose no manifest and are not presented as an installable app; offline installability is contextual and was not treated as a requirement.", "reason": "The sampled public commerce pages expose no manifest and are not presented as an installable app; offline installability is contextual and was not treated as a requirement.", "pathIds": [ "home" ] }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "The account route displayed a plain Access Denied response, while Add to Bag left the count unchanged and cart requests returned 403/404 without an actionable message.", "pathIds": [ "home" ], "artifacts": [ "evidence/register-access-denied.png", "evidence/product-add-to-bag-flow-visible.json", "evidence/home-summary.json" ], "findingIds": [ "F22" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "issues", "confidence": "medium", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Pages correctly declare lang=\"en-GB\", but sampled CSS contained 727-873 physical left/right declarations versus 75-112 logical-property uses and no dir attribute.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json", "evidence/help-probe.json" ], "findingIds": [ "F23" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "The en-GB product surface consistently formats the visible price as £144.99 and localized copy/routes match the locale.", "pathIds": [ "home", "product" ], "artifacts": [ "evidence/product-underlying.png", "evidence/home-probe.json" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative route recon and DOM/runtime probes.", "evidence": "No user-facing event time, appointment, delivery timestamp, recurring schedule or time-zone conversion appeared on the representative paths.", "reason": "No user-facing event time, appointment, delivery timestamp, recurring schedule or time-zone conversion appeared on the representative paths.", "pathIds": [ "home" ] }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Consent presents Accept All and Decline All with equal visual prominence and no confirmshaming copy.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "After activation the only populated live-region text observed was the price, while the bag count remained zero; no error dialog or retry message appeared.", "pathIds": [ "product" ], "artifacts": [ "evidence/product-add-to-bag-flow-visible.json" ], "findingIds": [ "F24" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "The help probe found consumerName and consumerEmail text inputs with no accessible label and empty autocomplete values.", "pathIds": [ "help" ], "artifacts": [ "evidence/help-probe.json" ], "findingIds": [ "F25" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Navigating the public Join/Sign In route redirected to accounts.nike.com and returned Access Denied with no recovery link or retry action. After selecting visible size UK 3 and activating the visible enabled Add to Bag button, the bag accessible label stayed \"Bag Items: 0\" after seven seconds; HAR/Lighthouse also recorded cart API 403 and 404 responses.", "pathIds": [ "register", "product" ], "artifacts": [ "evidence/register-access-denied.png", "evidence/register-probe.json", "evidence/product-add-to-bag-flow-visible.json", "evidence/product-summary.json", "evidence/product-lighthouse-summary.json" ], "findingIds": [ "F09", "F08" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "Homepage image audit found 19/19 missing dimensions, 14 missing srcset and 14 reported as legacy formats; the PDP hero was more than twice its rendered width.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-images.json", "evidence/product-images.json" ], "findingIds": [ "F26" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "The homepage loaded 81 scripts and 53 fetch/XHR requests; Lighthouse found large unused video, recommendation and chat modules and the trace recorded long startup tasks.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/home-lighthouse.json", "evidence/home-trace-summary.json" ], "findingIds": [ "F27" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, network, Lighthouse, trace or interaction evidence as linked.", "evidence": "The first viewport autoplays a background hero video; homepage transfer was 6.27MB, including 3.97MB third-party and multiple video/audio segments, before the user could reach content through consent.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-underlying.png", "evidence/home-summary.json", "evidence/home.har" ], "findingIds": [ "F28" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative route recon and DOM/runtime probes.", "evidence": "No declared agent-facing intent or capability surface was found; this emerging contextual check is an opportunity, not an obligation.", "reason": "No declared agent-facing intent or capability surface was found; this emerging contextual check is an opportunity, not an obligation.", "pathIds": [ "home" ] }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative route recon and DOM/runtime probes.", "evidence": "No user task on the sampled commerce/help surfaces required on-device inference, and no agent-facing intent was declared.", "reason": "No user task on the sampled commerce/help surfaces required on-device inference, and no agent-facing intent was declared.", "pathIds": [ "home" ] }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "After ten repeated long-page scroll cycles, heap summary decreased from 53,973,193 to 53,587,692 self-size bytes and node count decreased from 842,796 to 840,973.", "pathIds": [ "home", "product" ], "artifacts": [ "evidence/product-heap-baseline.json", "evidence/product-heap-post.json" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "A garbage-collected PDP heap snapshot measured 53.97MB self size; large but proportionate to the media-rich commerce page, with no unbounded growth signal.", "pathIds": [ "home", "product" ], "artifacts": [ "evidence/product-heap-baseline.json" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "high", "method": "Cross-path screenshot, computed DOM/CSS probe, Lighthouse, network, metadata or heap evidence review.", "evidence": "Before/after heap summaries exposed no Detached* constructor population and total heap nodes decreased after repeated interaction.", "pathIds": [ "home", "product" ], "artifacts": [ "evidence/product-heap-baseline.json", "evidence/product-heap-post.json" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "F01" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "issues", "findingIds": [ "F02" ] }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "issues", "findingIds": [ "F03", "F04" ] }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "F05", "F06" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F07" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "issues", "findingIds": [ "F08" ] }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F10", "F11", "F12", "F13" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F14", "F15" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "F16", "F17", "F18" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "pass" }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F19", "F20" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "issues", "findingIds": [ "F21", "F22" ] }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "issues", "findingIds": [ "F23" ] }, { "principleId": "be-trustworthy", "expectation": "default", "status": "issues", "findingIds": [ "F24", "F25", "F09", "F08" ] }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F26", "F27", "F28" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "not-applicable", "reason": "No declared agent-facing intent or capability surface was found; this emerging contextual check is an opportunity, not an obligation. No user task on the sampled commerce/help surfaces required on-device inference, and no agent-facing intent was declared." }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "pass" } ], "paths": [ { "id": "home", "description": "Localized storefront homepage, representing global navigation, merchandising, consent, preferences and initial load.", "url": "https://www.nike.com/gb/", "conditions": [ "desktop", "viewport: 360x800", "prefers-color-scheme: dark", "prefers-reduced-motion: reduce", "forced-colors: active" ], "result": "issues" }, { "id": "listing", "description": "New products listing, representing catalogue discovery, filters and responsive product grids.", "url": "https://www.nike.com/gb/w/new-3n82y", "conditions": [ "desktop", "viewport: 360x800", "keyboard focus probe" ], "result": "issues" }, { "id": "product", "description": "KD19 product detail and add-to-bag attempt, representing product metadata, size selection and the primary commerce journey.", "url": "https://www.nike.com/gb/t/kd19-basketball-shoes-kHLnTNgP/IH1118-600", "conditions": [ "desktop", "viewport: 360x800", "repeated scroll interaction", "guest add-to-bag" ], "result": "issues" }, { "id": "help", "description": "Returns-policy help article, representing long-form support content, search and contact inputs.", "url": "https://www.nike.com/gb/help/a/returns-policy", "conditions": [ "desktop", "keyboard focus probe" ], "result": "issues" }, { "id": "register", "description": "Sign-in/join redirect, representing account access and authentication entry.", "url": "https://www.nike.com/gb/register", "conditions": [ "desktop", "fresh guest profile" ], "result": "failed" } ], "findings": [ { "id": "F01", "severity": "medium", "confidence": "high", "summary": "The storefront is light-only even when the user requests dark mode.", "evidence": "The dark-mode screenshot remains white and the dark probe reports html color-scheme \"normal\", body background rgb(255,255,255), and no prefers-color-scheme rules.", "suggestedFix": "Declare color-scheme and provide preference-driven surface, text and control colors using prefers-color-scheme or light-dark().", "effort": "medium", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-dark.png", "evidence/home-dark-probe.json" ] }, { "id": "F02", "severity": "low", "confidence": "medium", "summary": "Route and state changes do not use View Transitions.", "evidence": "Rendered CSS inspection across homepage, listing and product found zero view-transition rules; navigation is an abrupt document/state swap.", "suggestedFix": "Add same-document or cross-document View Transitions for catalogue-to-product and disclosure state changes, with reduced-motion handling.", "effort": "medium", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "implement-natural-interactions", "principleCheckId": "view-transitions", "guidanceId": "same-document-transitions", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-probe.json", "evidence/listing-probe.json", "evidence/product-probe.json" ] }, { "id": "F03", "severity": "low", "confidence": "medium", "summary": "The fixed global header does not expose scroll-state-aware feedback.", "evidence": "The underlying homepage video shows static header chrome, while CSS inspection found no scroll-state query or scroll timeline support.", "suggestedFix": "Use scroll-state container queries or a declarative progress/shrinking treatment where it improves orientation.", "effort": "medium", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "provide-guided-navigation", "principleCheckId": "scroll-state-aware-chrome", "guidanceId": "shrinking-header-on-scroll", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-underlying.mp4", "evidence/home-probe.json" ] }, { "id": "F04", "severity": "low", "confidence": "medium", "summary": "Filter/menu overlays do not use CSS anchor positioning.", "evidence": "The listing exposes several anchored filter controls, but CSS inspection found zero anchor-name, position-anchor or position-try rules.", "suggestedFix": "Use CSS anchor positioning with position-try fallbacks for filter menus and tooltips near viewport edges.", "effort": "medium", "pathId": "listing", "url": "https://www.nike.com/gb/w/new-3n82y", "principleId": "provide-guided-navigation", "principleCheckId": "anchored-positioning", "guidanceId": "position-aware-tooltips", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/listing-underlying.png", "evidence/listing-probe.json" ] }, { "id": "F05", "severity": "high", "confidence": "high", "summary": "A full-screen consent interstitial hides the entire storefront on every fresh visit.", "evidence": "Desktop and mobile screenshots show the cookie experience covering the content and requiring a choice before any product content can be seen.", "suggestedFix": "Reduce the consent UI to the minimum legally required interruption, preserve equal Accept/Decline prominence, and keep meaningful content visible where policy permits.", "effort": "medium", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "maximize-content-reduce-noise", "principleCheckId": "no-intrusive-interruptions", "guidanceId": "light-dismiss-a-dialog", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ] }, { "id": "F06", "severity": "medium", "confidence": "high", "summary": "The consent modal uses an invalid ARIA role instead of the platform dialog primitive.", "evidence": "Lighthouse reports role=\"modal\" as invalid; the DOM has zero dialog elements and the cookie root uses a custom div role.", "suggestedFix": "Use with aria-modal and a valid accessible name, or a valid role=\"dialog\" implementation if native dialog cannot be adopted.", "effort": "small", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "maximize-content-reduce-noise", "principleCheckId": "semantic-dismissible-primitives", "guidanceId": "declarative-dialog-popover-control", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-lighthouse-summary.json", "evidence/home-probe.json" ] }, { "id": "F07", "severity": "medium", "confidence": "medium", "summary": "Responsive behavior is viewport-only rather than component-aware.", "evidence": "The sampled CSS contains zero @container rules across homepage, listing and product despite reusable cards, filters and global shell components.", "suggestedFix": "Introduce containment and size container queries for cards, menus and product panels that appear at multiple widths.", "effort": "large", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "adapt-to-the-form-factor", "principleCheckId": "component-level-responsiveness", "guidanceId": "size-aware-styling", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-probe.json", "evidence/listing-probe.json", "evidence/product-probe.json" ] }, { "id": "F08", "severity": "high", "confidence": "high", "summary": "The guest add-to-bag flow did not complete.", "evidence": "After selecting visible size UK 3 and activating the visible enabled Add to Bag button, the bag accessible label stayed \"Bag Items: 0\" after seven seconds; HAR/Lighthouse also recorded cart API 403 and 404 responses.", "suggestedFix": "Make guest cart initialization reliable, show a clear actionable failure state, and add end-to-end monitoring for select-size to cart confirmation.", "effort": "large", "pathId": "product", "url": "https://www.nike.com/gb/t/kd19-basketball-shoes-kHLnTNgP/IH1118-600", "principleId": "support-core-task-success", "principleCheckId": "primary-flow-completion", "guidanceId": "forms", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/product-add-to-bag-flow-visible.json", "evidence/product-summary.json", "evidence/product-lighthouse-summary.json" ] }, { "id": "F09", "severity": "high", "confidence": "high", "summary": "The account entry point ends at an unstyled Access Denied page.", "evidence": "Navigating the public Join/Sign In route redirected to accounts.nike.com and returned Access Denied with no recovery link or retry action.", "suggestedFix": "Fix edge/bot policy false positives for legitimate browsers and return a branded, actionable recovery page when authentication cannot start.", "effort": "large", "pathId": "register", "url": "https://www.nike.com/gb/register", "principleId": "be-trustworthy", "principleCheckId": "safe-commercial-and-account-flows", "guidanceId": "autofill-sign-in-form", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/register-access-denied.png", "evidence/register-probe.json" ] }, { "id": "F10", "severity": "high", "confidence": "high", "summary": "Cold-load performance is far outside the good Core Web Vitals range.", "evidence": "Mobile Lighthouse measured homepage LCP 13.9s, FCP 7.1s and TBT 830ms (performance 0.36); the product page measured LCP 20.7s and TBT 920ms (performance 0.35). The independent trace measured LCP 7.34s.", "suggestedFix": "Prioritize the LCP resource, reduce startup JavaScript, defer non-critical media and third parties, and verify on representative mobile hardware.", "effort": "large", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "performance", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-lighthouse-summary.json", "evidence/product-lighthouse-summary.json", "evidence/home-trace-summary.json" ] }, { "id": "F11", "severity": "high", "confidence": "high", "summary": "Startup scripting blocks the main thread.", "evidence": "The trace found three long tasks, a 220.82ms longest task and 226.4ms TBT; Lighthouse measured 830-920ms TBT.", "suggestedFix": "Break long tasks into yielding chunks, delay non-essential modules, and schedule background work by priority.", "effort": "large", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-main-thread", "guidanceId": "break-up-long-tasks", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-trace-summary.json", "evidence/home-lighthouse-summary.json" ] }, { "id": "F12", "severity": "high", "confidence": "high", "summary": "The critical network path is large and crowded by parser-inserted resources.", "evidence": "The homepage HAR recorded 168 requests and 6,268,243 transferred bytes, including multiple VeryHigh parser-inserted stylesheets and High-priority scripts; the largest media segment was 2,032,200 bytes.", "suggestedFix": "Reduce critical CSS, defer or async non-critical scripts after confirming dependencies, and prioritize only the actual LCP asset.", "effort": "large", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-preload-priority", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home.har", "evidence/home-summary.json" ] }, { "id": "F13", "severity": "medium", "confidence": "high", "summary": "Large amounts of shipped JavaScript and CSS are unused on the initial route.", "evidence": "Lighthouse estimated 86KB unused in the video player, 77KB in recommendation code, 56KB in chat, and 96.8% waste in one 62KB inline stylesheet.", "suggestedFix": "Route-split optional video, chat and recommendation code; remove duplicate/global CSS and load features only when used.", "effort": "large", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "identify-heavy-scripts", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-lighthouse.json" ] }, { "id": "F14", "severity": "high", "confidence": "high", "summary": "The accessibility tree contains invalid roles and unnamed controls.", "evidence": "Lighthouse reports invalid role=\"modal\" and a menuitem without a required menu/menubar parent; probes found 2-5 unnamed buttons on sampled pages and dozens of empty-text links.", "suggestedFix": "Correct role ownership, replace the invalid modal role, and give every icon-only button/link a stable accessible name.", "effort": "medium", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-lighthouse-summary.json", "evidence/home-probe.json", "evidence/product-probe.json" ] }, { "id": "F15", "severity": "medium", "confidence": "high", "summary": "Heading structure skips levels and does not consistently reflect page hierarchy.", "evidence": "Lighthouse flags heading-order failures; the homepage probe shows an empty H1 followed by H3s, later another H1, and H4 groups without a consistent hierarchy.", "suggestedFix": "Use one descriptive page H1 and a sequential section hierarchy; keep visual typography independent of heading rank.", "effort": "medium", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-inclusive", "principleCheckId": "structure-and-focus", "guidanceId": "accessibility", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-lighthouse.json", "evidence/home-probe.json" ] }, { "id": "F16", "severity": "medium", "confidence": "high", "summary": "The page logs network and runtime errors on load.", "evidence": "Lighthouse captured cart API 403/404, a fingerprint endpoint 429, and an aborted unsupported Summarizer-language request.", "suggestedFix": "Handle expected network responses without console noise, correct the Summarizer language list, and add monitoring for cart and anti-bot failures.", "effort": "medium", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "follow-best-practices", "principleCheckId": "no-console-errors", "guidanceId": "html", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-lighthouse.json", "evidence/home-summary.json" ] }, { "id": "F17", "severity": "medium", "confidence": "high", "summary": "Images are delivered without intrinsic dimensions.", "evidence": "The image primitive found all 19 homepage images and all 10 product images missing width/height attributes; the PDP hero was also oversized at 1872 natural pixels for a 780px display.", "suggestedFix": "Emit width and height or aspect-ratio for every image and select right-sized CDN variants.", "effort": "medium", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "guidanceId": "html", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-images.json", "evidence/product-images.json" ] }, { "id": "F18", "severity": "low", "confidence": "high", "summary": "Deprecated browser APIs and missing source maps reduce platform hygiene.", "evidence": "Lighthouse reports three deprecations (Shared Storage, persistent StorageType and Protected Audience) and missing source maps for large first-party JavaScript.", "suggestedFix": "Remove deprecated API usage and publish production source maps to an access-controlled error-monitoring endpoint.", "effort": "medium", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "follow-best-practices", "principleCheckId": "browser-platform-hygiene", "guidanceId": "html", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-lighthouse.json" ] }, { "id": "F19", "severity": "high", "confidence": "high", "summary": "Transport is HTTPS, but browser defenses and cookie attributes are incomplete.", "evidence": "Headers show a CSP limited to frame-ancestors, no X-Content-Type-Options and no Referrer-Policy. Cookie audit found four cookies without Secure, all eight with SameSite=None, and two 395-day identifiers.", "suggestedFix": "Deploy a nonce/hash-based CSP beyond frame-ancestors, add nosniff and a strict referrer policy, and use Secure plus the narrowest SameSite and lifetime each cookie needs.", "effort": "large", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-headers.json", "evidence/home-cookies.json" ] }, { "id": "F20", "severity": "medium", "confidence": "high", "summary": "The pre-consent third-party and telemetry footprint is broad.", "evidence": "Tracker capture found 12 non-www origins and New Relic; the HAR attributes 58 requests and 3,970,035 bytes to third-party origins on the homepage.", "suggestedFix": "Audit every pre-consent integration, gate non-essential telemetry, batch analytics, and remove vendors whose user value does not justify their data and byte cost.", "effort": "large", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-private-and-secure", "principleCheckId": "data-minimisation-and-third-parties", "guidanceId": "privacy", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-trackers.json", "evidence/home-summary.json" ] }, { "id": "F21", "severity": "medium", "confidence": "high", "summary": "Core content is server-rendered, but the primary transaction is not resilient.", "evidence": "Discoverability found 54-61% raw-HTML content coverage and no JS shell, but the exercised add-to-bag operation silently failed when cart APIs returned errors.", "suggestedFix": "Keep product content server-rendered and progressively enhance cart submission with a recoverable form/server path or an explicit retry state.", "effort": "large", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-resilient", "principleCheckId": "progressive-enhancement", "guidanceId": "stabilize-reactive-state", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-discoverability.json", "evidence/product-discoverability.json", "evidence/product-add-to-bag-flow-visible.json" ] }, { "id": "F22", "severity": "high", "confidence": "high", "summary": "Network failures produce dead ends or silent failure instead of recovery.", "evidence": "The account route displayed a plain Access Denied response, while Add to Bag left the count unchanged and cart requests returned 403/404 without an actionable message.", "suggestedFix": "Handle auth/cart failure with branded error states, retry/back controls, preserved selection and telemetry that distinguishes policy blocks from service errors.", "effort": "large", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-resilient", "principleCheckId": "network-and-http-failure-states", "guidanceId": "conditional-async-dependencies", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/register-access-denied.png", "evidence/product-add-to-bag-flow-visible.json", "evidence/home-summary.json" ] }, { "id": "F23", "severity": "medium", "confidence": "medium", "summary": "The localized shell still relies heavily on physical CSS properties.", "evidence": "Pages correctly declare lang=\"en-GB\", but sampled CSS contained 727-873 physical left/right declarations versus 75-112 logical-property uses and no dir attribute.", "suggestedFix": "Set direction explicitly where appropriate and migrate reusable layout styles to inline/block logical properties, testing RTL locales.", "effort": "large", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-internationalised", "principleCheckId": "lang-dir-and-logical-properties", "guidanceId": "translator", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-probe.json", "evidence/help-probe.json" ] }, { "id": "F24", "severity": "medium", "confidence": "high", "summary": "The failed add-to-bag action gives no clear, actionable error.", "evidence": "After activation the only populated live-region text observed was the price, while the bag count remained zero; no error dialog or retry message appeared.", "suggestedFix": "Announce failure in an aria-live region next to the action, preserve the chosen size, and provide Retry or another recovery path.", "effort": "medium", "pathId": "product", "url": "https://www.nike.com/gb/t/kd19-basketball-shoes-kHLnTNgP/IH1118-600", "principleId": "be-trustworthy", "principleCheckId": "humane-error-handling", "guidanceId": "accessible-error-announcement", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/product-add-to-bag-flow-visible.json" ] }, { "id": "F25", "severity": "medium", "confidence": "high", "summary": "Support contact inputs lack labels and autocomplete metadata.", "evidence": "The help probe found consumerName and consumerEmail text inputs with no accessible label and empty autocomplete values.", "suggestedFix": "Add visible labels and correct autocomplete=name/email tokens; retain programmatic association and clear validation messages.", "effort": "small", "pathId": "help", "url": "https://www.nike.com/gb/help/a/returns-policy", "principleId": "be-trustworthy", "principleCheckId": "trustworthy-input-assistance", "guidanceId": "forms", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/help-probe.json" ] }, { "id": "F26", "severity": "medium", "confidence": "high", "summary": "Image delivery misses intrinsic sizing and responsive-source opportunities.", "evidence": "Homepage image audit found 19/19 missing dimensions, 14 missing srcset and 14 reported as legacy formats; the PDP hero was more than twice its rendered width.", "suggestedFix": "Serve responsive modern-format variants from the image CDN with srcset/sizes, intrinsic dimensions and quality appropriate to each placement.", "effort": "medium", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "deliver-optimized-decorative-images", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-images.json", "evidence/product-images.json" ] }, { "id": "F27", "severity": "medium", "confidence": "high", "summary": "The initial page performs substantial work unrelated to the first task.", "evidence": "The homepage loaded 81 scripts and 53 fetch/XHR requests; Lighthouse found large unused video, recommendation and chat modules and the trace recorded long startup tasks.", "suggestedFix": "Conditionally load video, chat and recommendations, deprioritize background fetches, and stop work when content is offscreen or the page is hidden.", "effort": "large", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-sustainable", "principleCheckId": "no-wasteful-work", "guidanceId": "efficient-background-processing", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-summary.json", "evidence/home-lighthouse.json", "evidence/home-trace-summary.json" ] }, { "id": "F28", "severity": "high", "confidence": "high", "summary": "Autoplay media and third-party bytes dominate the homepage budget.", "evidence": "The first viewport autoplays a background hero video; homepage transfer was 6.27MB, including 3.97MB third-party and multiple video/audio segments, before the user could reach content through consent.", "suggestedFix": "Use a poster by default, honor reduced-data/autoplay preferences, defer media until visible or requested, and set route-specific third-party/media budgets.", "effort": "large", "pathId": "home", "url": "https://www.nike.com/gb/", "principleId": "be-sustainable", "principleCheckId": "third-party-and-media-budget", "guidanceId": "deprioritize-background-fetches", "guidanceCategory": "modern-web-guidance", "artifacts": [ "evidence/home-underlying.png", "evidence/home-summary.json", "evidence/home.har" ] } ], "taskList": [ { "id": "T01", "title": "Restore reliable guest cart and account entry with actionable failure recovery", "priority": 1, "findingIds": [ "F08", "F09", "F22", "F24" ], "guidanceId": "accessible-error-announcement", "status": "open" }, { "id": "T02", "title": "Cut LCP, startup JavaScript, critical requests and autoplay media", "priority": 2, "findingIds": [ "F10", "F11", "F12", "F13", "F27", "F28" ], "guidanceId": "performance", "status": "open" }, { "id": "T03", "title": "Harden CSP, response headers and cookie attributes; reduce pre-consent third parties", "priority": 3, "findingIds": [ "F19", "F20" ], "guidanceId": "security", "status": "open" }, { "id": "T04", "title": "Repair modal, menu, button and heading accessibility semantics", "priority": 4, "findingIds": [ "F06", "F14", "F15" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T05", "title": "Optimize and intrinsically size responsive imagery", "priority": 5, "findingIds": [ "F17", "F26" ], "guidanceId": "optimize-image-priority", "status": "open" }, { "id": "T06", "title": "Add preference-driven dark mode and preserve existing reduced-motion/contrast behavior", "priority": 6, "findingIds": [ "F01" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "T07", "title": "Reduce the consent interruption while preserving symmetric choices", "priority": 7, "findingIds": [ "F05" ], "guidanceId": "light-dismiss-a-dialog", "status": "open" }, { "id": "T08", "title": "Adopt container queries and logical properties in reusable shell/components", "priority": 8, "findingIds": [ "F07", "F23" ], "guidanceId": "size-aware-styling", "status": "open" }, { "id": "T09", "title": "Add labels and autocomplete metadata to support/contact inputs", "priority": 9, "findingIds": [ "F25" ], "guidanceId": "forms", "status": "open" }, { "id": "T10", "title": "Clean console errors, deprecations and source-map diagnostics", "priority": 10, "findingIds": [ "F16", "F18" ], "guidanceId": "html", "status": "open" }, { "id": "T11", "title": "Progressively enhance transactional operations and modernize navigation motion", "priority": 11, "findingIds": [ "F02", "F03", "F04", "F21" ], "guidanceId": "same-document-transitions", "status": "open" } ], "budget": { "pathCount": 5, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-20T23-52-46-293Z" }