{ "url": "https://www.samsung.com", "auditedAt": "2026-07-22T02:06:57.990Z", "mode": "report", "status": "completed", "statusDetail": "Coverage-complete representative audit of the UK redirect destination.", "page": { "appType": "mpa", "framework": "Adobe/AEM-style multi-page retail site", "notes": "www.samsung.com redirected to /uk/. Four representative templates were sampled." }, "evidenceUsed": [ "screenshot", "dom", "evaluate-probe", "layout-metrics", "trace", "har", "discoverability", "headers", "cookies", "trackers", "images", "secrets", "heap-summary", "lighthouse" ], "guidanceConsulted": [ "accessibility", "accessible-error-announcement", "adapt-scrollbar-to-contrast-preferences", "anchor-positioning-tab-underline", "autofill-address-form", "autofill-payment-form", "break-up-long-tasks", "complex-shapes", "coordinate-global-events", "css", "dark-mode", "declarative-dialog-popover-control", "deliver-optimized-decorative-images", "deprioritize-background-fetches", "directional-navigation-transitions", "flicker-free-client-side-ab-testing", "fluid-scaling", "forms", "html", "identify-heavy-scripts", "identify-inp-causes", "improve-text-layout-and-legibility", "language-model", "light-dismiss-a-dialog", "manage-recurring-intervals", "move-dom-element-without-losing-state", "optimize-image-priority", "passkeys", "persistent-toast-notifications", "physics-based-easing", "privacy", "resilient-context-menus-and-nested-dropdowns", "same-document-transitions", "scrollytelling", "search-hidden-content", "security", "shrinking-header-on-scroll", "size-aware-styling", "support-global-calendar-systems", "translator", "visually-stable-font-fallbacks", "webmcp", "scroll-progress-indicator", "position-aware-tooltips", "overflow-clipping-control", "performance", "optimize-preload-priority", "custom-button-actions", "efficient-background-processing" ], "artifacts": [ { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "home desktop", "findingIds": [ "F08", "F27" ] }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "home mobile", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "home dark", "condition": "prefers-color-scheme: dark", "findingIds": [ "F01" ] }, { "type": "screenshot", "path": "evidence/listing.png", "caption": "listing", "findingIds": [] }, { "type": "screenshot", "path": "evidence/product.png", "caption": "product", "findingIds": [] }, { "type": "screenshot", "path": "evidence/buy.png", "caption": "buy", "findingIds": [ "F09", "F10" ] }, { "type": "layout", "path": "evidence/home-layout-mobile.json", "caption": "home layout mobile", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "layout", "path": "evidence/listing-layout.json", "caption": "listing layout", "findingIds": [ "F13" ] }, { "type": "layout", "path": "evidence/product-layout.json", "caption": "product layout", "findingIds": [ "F05", "F06" ] }, { "type": "layout", "path": "evidence/buy-layout.json", "caption": "buy layout", "findingIds": [ "F14" ] }, { "type": "trace", "path": "evidence/home-trace.json", "caption": "home trace", "findingIds": [] }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "home trace summary", "findingIds": [] }, { "type": "har", "path": "evidence/home.har", "caption": "home", "findingIds": [] }, { "type": "other", "path": "evidence/home-summary.json", "caption": "home summary", "findingIds": [ "F15", "F24", "F28", "F29", "F30" ] }, { "type": "discoverability", "path": "evidence/home-discoverability.json", "caption": "home discoverability", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-discoverability-rendered.png", "caption": "home discoverability rendered", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-discoverability-crawler.png", "caption": "home discoverability crawler", "findingIds": [] }, { "type": "discoverability", "path": "evidence/listing-discoverability.json", "caption": "listing discoverability", "findingIds": [] }, { "type": "screenshot", "path": "evidence/listing-discoverability-rendered.png", "caption": "listing discoverability rendered", "findingIds": [] }, { "type": "screenshot", "path": "evidence/listing-discoverability-crawler.png", "caption": "listing discoverability crawler", "findingIds": [] }, { "type": "discoverability", "path": "evidence/product-discoverability.json", "caption": "product discoverability", "findingIds": [] }, { "type": "screenshot", "path": "evidence/product-discoverability-rendered.png", "caption": "product discoverability rendered", "findingIds": [] }, { "type": "screenshot", "path": "evidence/product-discoverability-crawler.png", "caption": "product discoverability crawler", "findingIds": [] }, { "type": "other", "path": "evidence/home-headers.json", "caption": "home headers", "findingIds": [ "F23", "F26" ] }, { "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-images.json", "caption": "home images", "findingIds": [ "F20" ] }, { "type": "other", "path": "evidence/home-secrets.json", "caption": "home secrets", "findingIds": [] }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "home dom", "findingIds": [] }, { "type": "other", "path": "evidence/home-recon.json", "caption": "home recon", "findingIds": [] }, { "type": "other", "path": "evidence/home-links.json", "caption": "home links", "findingIds": [ "F25" ] }, { "type": "other", "path": "evidence/home-probe.json", "caption": "home probe", "findingIds": [ "F03", "F18" ] }, { "type": "other", "path": "evidence/listing-probe.json", "caption": "listing probe", "findingIds": [ "F07", "F11" ] }, { "type": "other", "path": "evidence/product-probe.json", "caption": "product probe", "findingIds": [] }, { "type": "other", "path": "evidence/buy-probe.json", "caption": "buy probe", "findingIds": [ "F04", "F21" ] }, { "type": "other", "path": "evidence/buy-form-probe.json", "caption": "buy form probe", "findingIds": [] }, { "type": "other", "path": "evidence/home-reduced-motion.json", "caption": "home reduced motion", "condition": "prefers-reduced-motion: reduce", "findingIds": [ "F02" ] }, { "type": "heap", "path": "evidence/heap-baseline.heapsnapshot", "caption": "heap baseline", "findingIds": [ "F32" ] }, { "type": "heap", "path": "evidence/heap-post.heapsnapshot", "caption": "heap post", "findingIds": [] }, { "type": "lighthouse", "path": "evidence/lighthouse-home.json", "caption": "lighthouse home", "findingIds": [] }, { "type": "lighthouse", "path": "evidence/lighthouse-summary.json", "caption": "lighthouse summary", "findingIds": [ "F12", "F16", "F17", "F19", "F22", "F31" ] } ], "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": "multi-path screenshot, layout and evaluate probes", "evidence": "The dark-emulated screenshot remains the same light presentation and the computed root color-scheme is normal; CSS inspection found no dark-mode adaptation.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-dark.png" ], "findingIds": [ "F01" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "Under prefers-reduced-motion: reduce, five animations were still running (500–1500 ms), while CSS inspection found no reduced-motion rule.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-reduced-motion.json" ], "findingIds": [ "F02" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "CSS inspection across representative pages found color-scheme normal and no preference-oriented rules; the interface relies on fixed colours rather than explicit forced-colors/prefers-contrast support.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-probe.json" ], "findingIds": [ "F03" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "CSS inspection on all four templates found zero view-transition rules despite navigation and buying-tool state changes.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/buy-probe.json" ], "findingIds": [ "F04" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "The 41,375 px product page contains rich storytelling but CSS inspection found zero animation-timeline or scroll-timeline rules.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/product-layout.json" ], "findingIds": [ "F05" ] }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "Mobile screenshots show no horizontal overflow, and visible carousel controls use platform buttons with Previous/Next affordances rather than a pointer-only path.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-mobile.png" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "The product page is 41,375 px tall, while CSS inspection found no scroll-state container queries or scroll timelines for progress/orientation.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/product-layout.json" ], "findingIds": [ "F06" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "The site exposes navigation, filters and popup controls, but CSS inspection found zero anchor-name or position-anchor declarations.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/listing-probe.json" ], "findingIds": [ "F07" ] }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "The product and buy templates provide clear section tabs, selected-state borders, Previous/Next controls and a visible focus outline.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/buy.png" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "Desktop screenshots of the home and buy paths show a large modal and dimmed page blocking the main content before interaction.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-desktop.png" ], "findingIds": [ "F08" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "The visible consent overlay and popup-heavy buying experience are present, while probes report zero dialog, popover and details elements.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/buy.png" ], "findingIds": [ "F09" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "Screenshots show a full blocking consent panel plus a floating WhatsApp control over the product and purchase surfaces.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/buy.png" ], "findingIds": [ "F10" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "At 360x800 all four templates reported scrollWidth equal to clientWidth (360 px), a viewport meta tag, and zero horizontal overflow.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-layout-mobile.json", "evidence/listing-layout.json", "evidence/product-layout.json", "evidence/buy-layout.json" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "CSS inspection on home, listing, product and buy templates found zero @container rules.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/listing-probe.json" ], "findingIds": [ "F11" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "A programmatic keyboard focus probe produced a visible 2 px dotted outline on the skip link, and the mobile buying controls are large button/radio surfaces.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-probe.json" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "Each representative template has a specific title/H1 and clear actions, from Explore Galaxy Smartphones through Buy and device selection.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-links.json" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "Recon followed real hrefs from home to product to the buying tool; the buy path loaded device, storage, colour, trade-in and payment choices without an auth wall.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/buy-form-probe.json" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "The buying tool exposes selected states, expandable sections, previous/next controls and explicit delivery/payment state; no dead screen was encountered during route traversal.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/buy-form-probe.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Lighthouse plus trace/layout/HAR evidence", "evidence": "Lighthouse measured LCP 18.5 s, Speed Index 8.9 s and TBT 370 ms; the independent trace measured LCP 2.56 s, confirming substantial run variability and a fragile load path.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/lighthouse-summary.json" ], "findingIds": [ "F12" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "issues", "confidence": "high", "method": "Lighthouse plus trace/layout/HAR evidence", "evidence": "The layout primitive measured CLS 0.229 on home, 0.684 on listing and 0.305 on buy; only the product detail was stable at 0.0008.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/listing-layout.json" ], "findingIds": [ "F13" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "issues", "confidence": "high", "method": "Lighthouse plus trace/layout/HAR evidence", "evidence": "Mobile captures recorded tasks up to 426 ms on home, 395 ms on listing and 579 ms on buy; Lighthouse measured 370 ms TBT.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/buy-layout.json" ], "findingIds": [ "F14" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Lighthouse plus trace/layout/HAR evidence", "evidence": "HAR captured 3.69 MB across 93 requests, 13 stylesheets and many parser-inserted VeryHigh-priority CSS candidates; several fonts lack cache headers.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-summary.json" ], "findingIds": [ "F15" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Lighthouse plus trace/layout/HAR evidence", "evidence": "Lighthouse estimates 211 KiB unused JavaScript and 44 KiB unused CSS; HAR shows duplicate SamsungOne fonts served from two origins.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/lighthouse-summary.json" ], "findingIds": [ "F16" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "Lighthouse failed button-name, link-name and image-alt audits; the image primitive reported 74 of 100 img elements without alt.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/lighthouse-summary.json" ], "findingIds": [ "F17" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "Lighthouse passed the colour-contrast audit, and keyboard focus rendered as a 2 px dotted outline.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/lighthouse-summary.json" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "All four template probes report zero main elements, although skip links and visible dotted focus are present.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-probe.json" ], "findingIds": [ "F18" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "Desktop and mobile screenshots show readable typography and clear section hierarchy; no horizontal clipping occurred at 360 px.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-mobile.png" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "All templates reflowed to 360 px without overflow; viewport metadata does not set maximum-scale or user-scalable=no.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/product-layout.json" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "Lighthouse failed the errors-in-console audit on the homepage.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/lighthouse-summary.json" ], "findingIds": [ "F19" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "The image primitive found all 100 sampled images missing width and height attributes, aligning with high CLS on three templates.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-images.json" ], "findingIds": [ "F20" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "Probes counted 11 javascript: links on home, 19 on listing and 91 on buy, while Lighthouse failed crawlable anchors.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/buy-probe.json" ], "findingIds": [ "F21" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "high", "method": "discoverability/raw HTML plus DOM probes", "evidence": "All four templates expose unique descriptive titles and meta descriptions in the DOM.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-probe.json" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "issues", "confidence": "high", "method": "discoverability/raw HTML plus DOM probes", "evidence": "Lighthouse failed crawlable anchors and link-name; DOM probes found up to 91 javascript: links on the purchase page.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/lighthouse-summary.json" ], "findingIds": [ "F22" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "pass", "confidence": "high", "method": "discoverability/raw HTML plus DOM probes", "evidence": "All sampled pages returned 200 and exposed self-referential canonical URLs; robots.txt was reachable and no noindex was observed.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/product-probe.json" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "pass", "confidence": "high", "method": "discoverability/raw HTML plus DOM probes", "evidence": "Each sampled template exposes 3–5 JSON-LD blocks and eight Open Graph tags aligned with visible products/content.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/product-probe.json" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "headers, cookies, trackers, HAR and DOM probes", "evidence": "HTTPS and HSTS are present, but CSP and X-Content-Type-Options are missing; six of eight cookies lack Secure and several use SameSite=None.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-headers.json" ], "findingIds": [ "F23" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "issues", "confidence": "high", "method": "headers, cookies, trackers, HAR and DOM probes", "evidence": "HAR recorded 66 third-party requests and 2.87 MB from third-party origins, including Adobe DTM and TrustArc; trackers probe found 11 third-party origins.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-summary.json" ], "findingIds": [ "F24" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "issues", "confidence": "high", "method": "headers, cookies, trackers, HAR and DOM probes", "evidence": "The public templates expose Sign In/Sign-Up but DOM/CSS probes found no WebAuthn/passkey affordance; no permission prompt fired on load.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-links.json" ], "findingIds": [ "F25" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "headers, cookies, trackers, HAR and DOM probes", "evidence": "Headers include HSTS and SAMEORIGIN framing protection, but omit CSP, Referrer-Policy and Permissions-Policy.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-headers.json" ], "findingIds": [ "F26" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "pass", "confidence": "high", "method": "discoverability/raw HTML plus DOM probes", "evidence": "Raw HTML retained 75% of homepage words, 72% of listing words and 98% of product words, with title, H1 and description present and no empty JS shell.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/product-discoverability.json" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "pass", "confidence": "high", "method": "discoverability/raw HTML plus DOM probes", "evidence": "Representative navigation, listing, product and buying templates loaded with selected states and overflow-free mobile layouts; no cut-off horizontal overlay was observed.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/buy-layout.json" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "not-applicable", "confidence": "high", "method": "Recon and applicability judgement across representative templates", "evidence": "This is a public commerce/catalog MPA rather than an installable app; offline checkout would be misleading, while progressive enhancement is judged separately.", "reason": "This is a public commerce/catalog MPA rather than an installable app; offline checkout would be misleading, while progressive enhancement is judged separately." }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "pass", "confidence": "medium", "method": "discoverability/raw HTML plus DOM probes", "evidence": "The commerce pages are substantially server-rendered rather than blank shells, preserving useful content when enhancement scripts are unavailable; normal HTTP responses had no errors.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-discoverability.json" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "All four templates declare lang=en-GB and preserve a coherent left-to-right reading order; localized UK copy and currency are rendered consistently.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-probe.json" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "The buying tool presents pound sterling amounts and UK-specific monthly-contract disclosures consistently with the en-GB locale.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/buy-form-probe.json" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "not-applicable", "confidence": "high", "method": "Recon and applicability judgement across representative templates", "evidence": "The sampled catalog and purchase-selection surfaces do not present events, appointments or user-entered times requiring time-zone or DST logic.", "reason": "The sampled catalog and purchase-selection surfaces do not present events, appointments or user-entered times requiring time-zone or DST logic." }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "The first-load modal prevents access to the page until Configure, Accept All or Decline All is chosen, rather than allowing the content to remain usable.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-desktop.png" ], "findingIds": [ "F27" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "The sampled selection controls use labelled radio inputs and explicit selected states; no premature error state appeared during normal buying-tool traversal.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/buy-form-probe.json" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "The buy form probe found labelled radio/checkbox controls and a labelled Search input; the selection-heavy flow does not require unnecessary free-text entry.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/buy-form-probe.json" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "pass", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "The buying tool exposes upfront price, monthly price, future price rises, trade-in range, plan length and optional Care+ costs before continuation.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/buy-form-probe.json" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "HAR transferred 3.69 MB, led by a 1.06 MB autoplay MP4, an 836 KB SVG sprite and duplicate font files from two origins.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-summary.json" ], "findingIds": [ "F28" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "The homepage performs 93 requests with 30 scripts, while mobile captures record 426 ms of single-task work and Lighthouse reports substantial unused JS.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-summary.json" ], "findingIds": [ "F29" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "Third-party origins account for 2.87 MB of 3.69 MB transferred, and the autoplay hero MP4 alone transfers 1.06 MB.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/home-summary.json" ], "findingIds": [ "F30" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "issues", "confidence": "high", "method": "multi-path screenshot, layout and evaluate probes", "evidence": "Lighthouse agentic-browsing scored 0.67 and probes found no WebMCP or agentic form/tool registration despite a structured product-buying journey.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/lighthouse-summary.json" ], "findingIds": [ "F31" ] }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "Recon and applicability judgement across representative templates", "evidence": "The sampled retail catalog and deterministic buying flow has no user task that clearly benefits from built-in on-device language-model inference.", "reason": "The sampled retail catalog and deterministic buying flow has no user task that clearly benefits from built-in on-device language-model inference." }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "pass", "confidence": "high", "method": "baseline and post-interaction heap comparison", "evidence": "After ten repeated navigation-menu toggles, heap self size grew only 0.70% (23.45 MB to 23.62 MB) and node count 0.51%, not an unbounded trend in this exercise.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post.heapsnapshot" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "issues", "confidence": "high", "method": "baseline and post-interaction heap comparison", "evidence": "The homepage baseline heap contained 354,535 nodes and 23.45 MB self size before meaningful interaction, high for a retail landing page.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot" ], "findingIds": [ "F32" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "high", "method": "baseline and post-interaction heap comparison", "evidence": "The same ten-toggle exercise produced only 0.51% node growth and 0.70% heap growth, providing no signal of accumulating listeners/timers or detached UI in the tested interaction.", "pathIds": [ "home", "listing", "product", "buy" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post.heapsnapshot" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "F01", "F02", "F03" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "issues", "findingIds": [ "F04", "F05" ] }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "issues", "findingIds": [ "F06", "F07" ] }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "F08", "F09", "F10" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F11" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "pass" }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F12", "F13", "F14", "F15", "F16" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F17", "F18" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "F19", "F20", "F21" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "F22" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F23", "F24", "F25", "F26" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "pass" }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "pass" }, { "principleId": "be-trustworthy", "expectation": "default", "status": "issues", "findingIds": [ "F27" ] }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F28", "F29", "F30" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "issues", "findingIds": [ "F31" ] }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "issues", "findingIds": [ "F32" ] } ], "paths": [ { "id": "home", "description": "UK homepage and global navigation; represents entry, campaigns, consent and recommendations.", "url": "https://www.samsung.com/uk/", "conditions": [ "desktop", "360x800", "dark", "reduced motion", "no JavaScript crawler" ], "result": "issues" }, { "id": "listing", "description": "All smartphones listing; represents category discovery, filtering and product cards.", "url": "https://www.samsung.com/uk/smartphones/all-smartphones/", "conditions": [ "desktop", "360x800", "no JavaScript crawler" ], "result": "issues" }, { "id": "product", "description": "Galaxy S26 Ultra detail; represents long-form product storytelling, media and specifications.", "url": "https://www.samsung.com/uk/smartphones/galaxy-s26-ultra/", "conditions": [ "desktop", "360x800", "no JavaScript crawler" ], "result": "issues" }, { "id": "buy", "description": "Galaxy S26 Ultra buying tool; represents the primary commercial selection journey through device, storage, colour, trade-in and payment options.", "url": "https://www.samsung.com/uk/smartphones/galaxy-s26-ultra/buy/", "conditions": [ "desktop", "360x800", "keyboard/programmatic focus" ], "result": "issues" } ], "findings": [ { "id": "F12", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "performance", "guidanceCategory": "be-fast-and-stable", "severity": "critical", "confidence": "high", "summary": "Homepage loading performance is poor", "evidence": "Lighthouse measured LCP 18.5 s, Speed Index 8.9 s and TBT 370 ms; the independent trace measured LCP 2.56 s, confirming substantial run variability and a fragile load path.", "artifacts": [ "evidence/lighthouse-summary.json" ], "suggestedFix": "Prioritise the LCP asset, reduce early script/style work, and validate against lab and field Core Web Vitals.", "effort": "large" }, { "id": "F08", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "maximize-content-reduce-noise", "principleCheckId": "no-intrusive-interruptions", "guidanceId": "light-dismiss-a-dialog", "guidanceCategory": "maximize-content-reduce-noise", "severity": "high", "confidence": "high", "summary": "Consent modal obscures every primary page on first load", "evidence": "Desktop screenshots of the home and buy paths show a large modal and dimmed page blocking the main content before interaction.", "artifacts": [ "evidence/home-desktop.png" ], "suggestedFix": "Reduce the initial consent surface, preserve equally prominent accept/decline choices, and avoid obscuring the full primary experience.", "effort": "medium" }, { "id": "F13", "pathId": "listing", "url": "https://www.samsung.com/uk/smartphones/all-smartphones/", "principleId": "be-fast-and-stable", "principleCheckId": "visual-stability", "guidanceId": "visually-stable-font-fallbacks", "guidanceCategory": "be-fast-and-stable", "severity": "high", "confidence": "high", "summary": "Major mobile layout shifts occur on key templates", "evidence": "The layout primitive measured CLS 0.229 on home, 0.684 on listing and 0.305 on buy; only the product detail was stable at 0.0008.", "artifacts": [ "evidence/listing-layout.json" ], "suggestedFix": "Reserve space for late UI, consent and product modules; add intrinsic dimensions and stable font fallbacks.", "effort": "medium" }, { "id": "F14", "pathId": "buy", "url": "https://www.samsung.com/uk/smartphones/galaxy-s26-ultra/buy/", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-main-thread", "guidanceId": "break-up-long-tasks", "guidanceCategory": "be-fast-and-stable", "severity": "high", "confidence": "high", "summary": "Long main-thread tasks delay interaction", "evidence": "Mobile captures recorded tasks up to 426 ms on home, 395 ms on listing and 579 ms on buy; Lighthouse measured 370 ms TBT.", "artifacts": [ "evidence/buy-layout.json" ], "suggestedFix": "Split and defer component initialization, reduce third-party execution, and schedule non-critical work after interaction readiness.", "effort": "medium" }, { "id": "F15", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-preload-priority", "guidanceCategory": "be-fast-and-stable", "severity": "high", "confidence": "high", "summary": "Critical delivery is heavy and render-blocking", "evidence": "HAR captured 3.69 MB across 93 requests, 13 stylesheets and many parser-inserted VeryHigh-priority CSS candidates; several fonts lack cache headers.", "artifacts": [ "evidence/home-summary.json" ], "suggestedFix": "Consolidate critical CSS, cache fonts, remove duplicate font origins and prioritise only the true LCP resource.", "effort": "medium" }, { "id": "F17", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "guidanceCategory": "be-inclusive", "severity": "high", "confidence": "high", "summary": "Some controls and images lack accessible names", "evidence": "Lighthouse failed button-name, link-name and image-alt audits; the image primitive reported 74 of 100 img elements without alt.", "artifacts": [ "evidence/lighthouse-summary.json" ], "suggestedFix": "Give every actionable control an accessible name and provide meaningful alt or explicit decorative empty alt.", "effort": "medium" }, { "id": "F20", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "guidanceId": "html", "guidanceCategory": "follow-best-practices", "severity": "high", "confidence": "high", "summary": "Images omit intrinsic dimensions at scale", "evidence": "The image primitive found all 100 sampled images missing width and height attributes, aligning with high CLS on three templates.", "artifacts": [ "evidence/home-images.json" ], "suggestedFix": "Set intrinsic width/height or aspect-ratio for image slots before lazy content arrives.", "effort": "medium" }, { "id": "F23", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "guidanceCategory": "be-private-and-secure", "severity": "high", "confidence": "high", "summary": "Security headers and cookie flags are incomplete", "evidence": "HTTPS and HSTS are present, but CSP and X-Content-Type-Options are missing; six of eight cookies lack Secure and several use SameSite=None.", "artifacts": [ "evidence/home-headers.json" ], "suggestedFix": "Deploy a tested CSP and nosniff, and mark all cookies Secure with the narrowest viable SameSite/HttpOnly settings.", "effort": "medium" }, { "id": "F26", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "guidanceId": "security", "guidanceCategory": "be-private-and-secure", "severity": "high", "confidence": "high", "summary": "Defensive browser policies are incomplete", "evidence": "Headers include HSTS and SAMEORIGIN framing protection, but omit CSP, Referrer-Policy and Permissions-Policy.", "artifacts": [ "evidence/home-headers.json" ], "suggestedFix": "Add CSP frame-ancestors, a strict Referrer-Policy, a least-privilege Permissions-Policy and nosniff.", "effort": "medium" }, { "id": "F28", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "deliver-optimized-decorative-images", "guidanceCategory": "be-sustainable", "severity": "high", "confidence": "high", "summary": "Homepage asset payload is disproportionate", "evidence": "HAR transferred 3.69 MB, led by a 1.06 MB autoplay MP4, an 836 KB SVG sprite and duplicate font files from two origins.", "artifacts": [ "evidence/home-summary.json" ], "suggestedFix": "Replace/defer decorative video, subset the SVG sprite and fonts, and remove duplicate asset origins.", "effort": "medium" }, { "id": "F30", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-sustainable", "principleCheckId": "third-party-and-media-budget", "guidanceId": "efficient-background-processing", "guidanceCategory": "be-sustainable", "severity": "high", "confidence": "high", "summary": "Third-party and media costs dominate the load", "evidence": "Third-party origins account for 2.87 MB of 3.69 MB transferred, and the autoplay hero MP4 alone transfers 1.06 MB.", "artifacts": [ "evidence/home-summary.json" ], "suggestedFix": "Set explicit third-party/media budgets, load the hero video on intent or suitable conditions, and gate vendors behind consent.", "effort": "medium" }, { "id": "F01", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "respect-user-preferences", "severity": "medium", "confidence": "high", "summary": "No user-driven dark colour scheme", "evidence": "The dark-emulated screenshot remains the same light presentation and the computed root color-scheme is normal; CSS inspection found no dark-mode adaptation.", "artifacts": [ "evidence/home-dark.png" ], "suggestedFix": "Declare color-scheme and provide prefers-color-scheme-driven surface and text tokens.", "effort": "medium" }, { "id": "F02", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "respect-user-preferences", "principleCheckId": "respects-reduced-motion", "guidanceId": "accessibility", "guidanceCategory": "respect-user-preferences", "severity": "medium", "confidence": "high", "summary": "Reduced-motion preference does not suppress motion", "evidence": "Under prefers-reduced-motion: reduce, five animations were still running (500–1500 ms), while CSS inspection found no reduced-motion rule.", "artifacts": [ "evidence/home-reduced-motion.json" ], "suggestedFix": "Add a prefers-reduced-motion: reduce branch that removes non-essential transitions and auto-advance.", "effort": "medium" }, { "id": "F09", "pathId": "buy", "url": "https://www.samsung.com/uk/smartphones/galaxy-s26-ultra/buy/", "principleId": "maximize-content-reduce-noise", "principleCheckId": "semantic-dismissible-primitives", "guidanceId": "declarative-dialog-popover-control", "guidanceCategory": "maximize-content-reduce-noise", "severity": "medium", "confidence": "high", "summary": "Overlay-heavy UI does not expose native dialog/popover primitives", "evidence": "The visible consent overlay and popup-heavy buying experience are present, while probes report zero dialog, popover and details elements.", "artifacts": [ "evidence/buy.png" ], "suggestedFix": "Implement modal flows with dialog and transient UI with popover, including native focus management and light dismiss.", "effort": "medium" }, { "id": "F10", "pathId": "buy", "url": "https://www.samsung.com/uk/smartphones/galaxy-s26-ultra/buy/", "principleId": "maximize-content-reduce-noise", "principleCheckId": "reduced-chrome", "guidanceId": "overflow-clipping-control", "guidanceCategory": "maximize-content-reduce-noise", "severity": "medium", "confidence": "high", "summary": "Persistent consent and chat chrome competes with product content", "evidence": "Screenshots show a full blocking consent panel plus a floating WhatsApp control over the product and purchase surfaces.", "artifacts": [ "evidence/buy.png" ], "suggestedFix": "Reduce persistent overlays and reserve floating chrome for user-invoked support.", "effort": "medium" }, { "id": "F16", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "identify-heavy-scripts", "guidanceCategory": "be-fast-and-stable", "severity": "medium", "confidence": "high", "summary": "Unused and duplicated payload inflates the load", "evidence": "Lighthouse estimates 211 KiB unused JavaScript and 44 KiB unused CSS; HAR shows duplicate SamsungOne fonts served from two origins.", "artifacts": [ "evidence/lighthouse-summary.json" ], "suggestedFix": "Code-split template bundles, remove duplicate font delivery and gate third-party modules behind need or consent.", "effort": "medium" }, { "id": "F18", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-inclusive", "principleCheckId": "structure-and-focus", "guidanceId": "move-dom-element-without-losing-state", "guidanceCategory": "be-inclusive", "severity": "medium", "confidence": "high", "summary": "Primary content lacks a main landmark", "evidence": "All four template probes report zero main elements, although skip links and visible dotted focus are present.", "artifacts": [ "evidence/home-probe.json" ], "suggestedFix": "Wrap the primary page content in main and retain the existing skip-link and focus visibility behaviour.", "effort": "medium" }, { "id": "F19", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "follow-best-practices", "principleCheckId": "no-console-errors", "guidanceId": "html", "guidanceCategory": "follow-best-practices", "severity": "medium", "confidence": "high", "summary": "The page emits browser console errors", "evidence": "Lighthouse failed the errors-in-console audit on the homepage.", "artifacts": [ "evidence/lighthouse-summary.json" ], "suggestedFix": "Remove uncaught runtime and resource errors, and keep production console output clean.", "effort": "medium" }, { "id": "F21", "pathId": "buy", "url": "https://www.samsung.com/uk/smartphones/galaxy-s26-ultra/buy/", "principleId": "follow-best-practices", "principleCheckId": "browser-platform-hygiene", "guidanceId": "html", "guidanceCategory": "follow-best-practices", "severity": "medium", "confidence": "high", "summary": "JavaScript pseudo-links replace real platform controls", "evidence": "Probes counted 11 javascript: links on home, 19 on listing and 91 on buy, while Lighthouse failed crawlable anchors.", "artifacts": [ "evidence/buy-probe.json" ], "suggestedFix": "Use buttons for actions and real href links for navigation; remove javascript: and javascript:void anchors.", "effort": "medium" }, { "id": "F22", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-discoverable", "principleCheckId": "crawlable-and-mobile-friendly", "guidanceId": "html", "guidanceCategory": "be-discoverable", "severity": "medium", "confidence": "high", "summary": "Action links are not consistently crawlable", "evidence": "Lighthouse failed crawlable anchors and link-name; DOM probes found up to 91 javascript: links on the purchase page.", "artifacts": [ "evidence/lighthouse-summary.json" ], "suggestedFix": "Use descriptive real links for navigation and buttons for in-page actions.", "effort": "medium" }, { "id": "F24", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-private-and-secure", "principleCheckId": "data-minimisation-and-third-parties", "guidanceId": "privacy", "guidanceCategory": "be-private-and-secure", "severity": "medium", "confidence": "high", "summary": "Third-party footprint is large before consent choice", "evidence": "HAR recorded 66 third-party requests and 2.87 MB from third-party origins, including Adobe DTM and TrustArc; trackers probe found 11 third-party origins.", "artifacts": [ "evidence/home-summary.json" ], "suggestedFix": "Delay non-essential vendors until consent, remove unused integrations and batch/minimise analytics.", "effort": "medium" }, { "id": "F27", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-trustworthy", "principleCheckId": "no-dark-patterns", "guidanceId": "custom-button-actions", "guidanceCategory": "be-trustworthy", "severity": "medium", "confidence": "high", "summary": "Consent choice blocks content and uses attention-heavy framing", "evidence": "The first-load modal prevents access to the page until Configure, Accept All or Decline All is chosen, rather than allowing the content to remain usable.", "artifacts": [ "evidence/home-desktop.png" ], "suggestedFix": "Keep consent controls honest and equivalent while allowing non-essential-content browsing without a full-screen interruption.", "effort": "medium" }, { "id": "F29", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-sustainable", "principleCheckId": "no-wasteful-work", "guidanceId": "deprioritize-background-fetches", "guidanceCategory": "be-sustainable", "severity": "medium", "confidence": "high", "summary": "Early network and script work is excessive", "evidence": "The homepage performs 93 requests with 30 scripts, while mobile captures record 426 ms of single-task work and Lighthouse reports substantial unused JS.", "artifacts": [ "evidence/home-summary.json" ], "suggestedFix": "Defer recommendations, analytics and below-fold components until idle, visibility or user intent.", "effort": "medium" }, { "id": "F32", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-memory-efficient", "principleCheckId": "bounded-footprint", "guidanceId": "manage-recurring-intervals", "guidanceCategory": "be-memory-efficient", "severity": "medium", "confidence": "high", "summary": "Initial DOM and heap footprint is large", "evidence": "The homepage baseline heap contained 354,535 nodes and 23.45 MB self size before meaningful interaction, high for a retail landing page.", "artifacts": [ "evidence/heap-baseline.heapsnapshot" ], "suggestedFix": "Reduce pre-rendered hidden UI, unload dormant components and cap caches/observers.", "effort": "medium" }, { "id": "F03", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "respect-user-preferences", "principleCheckId": "respects-contrast", "guidanceId": "adapt-scrollbar-to-contrast-preferences", "guidanceCategory": "respect-user-preferences", "severity": "low", "confidence": "high", "summary": "No explicit high-contrast adaptation", "evidence": "CSS inspection across representative pages found color-scheme normal and no preference-oriented rules; the interface relies on fixed colours rather than explicit forced-colors/prefers-contrast support.", "artifacts": [ "evidence/home-probe.json" ], "suggestedFix": "Add forced-colors and prefers-contrast adaptations for controls, borders and custom scroll affordances.", "effort": "medium" }, { "id": "F04", "pathId": "buy", "url": "https://www.samsung.com/uk/smartphones/galaxy-s26-ultra/buy/", "principleId": "implement-natural-interactions", "principleCheckId": "view-transitions", "guidanceId": "same-document-transitions", "guidanceCategory": "implement-natural-interactions", "severity": "low", "confidence": "high", "summary": "Route and state changes omit View Transitions", "evidence": "CSS inspection on all four templates found zero view-transition rules despite navigation and buying-tool state changes.", "artifacts": [ "evidence/buy-probe.json" ], "suggestedFix": "Use same-document or cross-document View Transitions for meaningful route and buying-tool state changes, with reduced-motion fallback.", "effort": "medium" }, { "id": "F05", "pathId": "product", "url": "https://www.samsung.com/uk/smartphones/galaxy-s26-ultra/", "principleId": "implement-natural-interactions", "principleCheckId": "scroll-driven-animations", "guidanceId": "scrollytelling", "guidanceCategory": "implement-natural-interactions", "severity": "low", "confidence": "high", "summary": "Long product storytelling does not use declarative scroll timelines", "evidence": "The 41,375 px product page contains rich storytelling but CSS inspection found zero animation-timeline or scroll-timeline rules.", "artifacts": [ "evidence/product-layout.json" ], "suggestedFix": "Move any scroll-linked reveals or progress effects to CSS scroll-driven animations.", "effort": "medium" }, { "id": "F06", "pathId": "product", "url": "https://www.samsung.com/uk/smartphones/galaxy-s26-ultra/", "principleId": "provide-guided-navigation", "principleCheckId": "scroll-state-aware-chrome", "guidanceId": "scroll-progress-indicator", "guidanceCategory": "provide-guided-navigation", "severity": "low", "confidence": "high", "summary": "Long pages lack declarative scroll-state-aware chrome", "evidence": "The product page is 41,375 px tall, while CSS inspection found no scroll-state container queries or scroll timelines for progress/orientation.", "artifacts": [ "evidence/product-layout.json" ], "suggestedFix": "Add a lightweight scroll progress or scroll-state-aware header treatment on long product pages.", "effort": "medium" }, { "id": "F07", "pathId": "listing", "url": "https://www.samsung.com/uk/smartphones/all-smartphones/", "principleId": "provide-guided-navigation", "principleCheckId": "anchored-positioning", "guidanceId": "position-aware-tooltips", "guidanceCategory": "provide-guided-navigation", "severity": "low", "confidence": "high", "summary": "Menus and overlays use custom positioning instead of anchor positioning", "evidence": "The site exposes navigation, filters and popup controls, but CSS inspection found zero anchor-name or position-anchor declarations.", "artifacts": [ "evidence/listing-probe.json" ], "suggestedFix": "Use CSS anchor positioning with position-try fallbacks for transient menus and tooltips.", "effort": "medium" }, { "id": "F11", "pathId": "listing", "url": "https://www.samsung.com/uk/smartphones/all-smartphones/", "principleId": "adapt-to-the-form-factor", "principleCheckId": "component-level-responsiveness", "guidanceId": "size-aware-styling", "guidanceCategory": "adapt-to-the-form-factor", "severity": "low", "confidence": "high", "summary": "Components rely on viewport layout rather than container queries", "evidence": "CSS inspection on home, listing, product and buy templates found zero @container rules.", "artifacts": [ "evidence/listing-probe.json" ], "suggestedFix": "Adopt container queries for reused cards, product selectors and recommendation modules.", "effort": "medium" }, { "id": "F25", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-private-and-secure", "principleCheckId": "in-context-permissions-and-modern-auth", "guidanceId": "passkeys", "guidanceCategory": "be-private-and-secure", "severity": "low", "confidence": "high", "summary": "Public account entry exposes no passkey affordance", "evidence": "The public templates expose Sign In/Sign-Up but DOM/CSS probes found no WebAuthn/passkey affordance; no permission prompt fired on load.", "artifacts": [ "evidence/home-links.json" ], "suggestedFix": "Offer passkeys in Samsung account sign-in and request any browser permissions only after a user action.", "effort": "medium" }, { "id": "F31", "pathId": "home", "url": "https://www.samsung.com/uk/", "principleId": "be-agent-ready", "principleCheckId": "structured-agent-capabilities", "guidanceId": "webmcp", "guidanceCategory": "be-agent-ready", "severity": "low", "confidence": "high", "summary": "Commerce capability is not exposed as structured agent tools", "evidence": "Lighthouse agentic-browsing scored 0.67 and probes found no WebMCP or agentic form/tool registration despite a structured product-buying journey.", "artifacts": [ "evidence/lighthouse-summary.json" ], "suggestedFix": "Expose narrowly scoped, user-confirmed product comparison and basket actions through WebMCP/agentic forms.", "effort": "medium" } ], "taskList": [ { "id": "T01", "title": "Homepage loading performance is poor", "priority": 1, "findingIds": [ "F12" ], "guidanceId": "performance", "status": "open" }, { "id": "T02", "title": "Consent modal obscures every primary page on first load", "priority": 2, "findingIds": [ "F08" ], "guidanceId": "light-dismiss-a-dialog", "status": "open" }, { "id": "T03", "title": "Major mobile layout shifts occur on key templates", "priority": 3, "findingIds": [ "F13" ], "guidanceId": "visually-stable-font-fallbacks", "status": "open" }, { "id": "T04", "title": "Long main-thread tasks delay interaction", "priority": 4, "findingIds": [ "F14" ], "guidanceId": "break-up-long-tasks", "status": "open" }, { "id": "T05", "title": "Critical delivery is heavy and render-blocking", "priority": 5, "findingIds": [ "F15" ], "guidanceId": "optimize-preload-priority", "status": "open" }, { "id": "T06", "title": "Some controls and images lack accessible names", "priority": 6, "findingIds": [ "F17" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T07", "title": "Images omit intrinsic dimensions at scale", "priority": 7, "findingIds": [ "F20" ], "guidanceId": "html", "status": "open" }, { "id": "T08", "title": "Security headers and cookie flags are incomplete", "priority": 8, "findingIds": [ "F23" ], "guidanceId": "security", "status": "open" }, { "id": "T09", "title": "Defensive browser policies are incomplete", "priority": 9, "findingIds": [ "F26" ], "guidanceId": "security", "status": "open" }, { "id": "T10", "title": "Homepage asset payload is disproportionate", "priority": 10, "findingIds": [ "F28" ], "guidanceId": "deliver-optimized-decorative-images", "status": "open" }, { "id": "T11", "title": "Third-party and media costs dominate the load", "priority": 11, "findingIds": [ "F30" ], "guidanceId": "efficient-background-processing", "status": "open" }, { "id": "T12", "title": "No user-driven dark colour scheme", "priority": 12, "findingIds": [ "F01" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "T13", "title": "Reduced-motion preference does not suppress motion", "priority": 13, "findingIds": [ "F02" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T14", "title": "Overlay-heavy UI does not expose native dialog/popover primitives", "priority": 14, "findingIds": [ "F09" ], "guidanceId": "declarative-dialog-popover-control", "status": "open" }, { "id": "T15", "title": "Persistent consent and chat chrome competes with product content", "priority": 15, "findingIds": [ "F10" ], "guidanceId": "overflow-clipping-control", "status": "open" }, { "id": "T16", "title": "Unused and duplicated payload inflates the load", "priority": 16, "findingIds": [ "F16" ], "guidanceId": "identify-heavy-scripts", "status": "open" }, { "id": "T17", "title": "Primary content lacks a main landmark", "priority": 17, "findingIds": [ "F18" ], "guidanceId": "move-dom-element-without-losing-state", "status": "open" }, { "id": "T18", "title": "The page emits browser console errors", "priority": 18, "findingIds": [ "F19" ], "guidanceId": "html", "status": "open" }, { "id": "T19", "title": "JavaScript pseudo-links replace real platform controls", "priority": 19, "findingIds": [ "F21" ], "guidanceId": "html", "status": "open" }, { "id": "T20", "title": "Action links are not consistently crawlable", "priority": 20, "findingIds": [ "F22" ], "guidanceId": "html", "status": "open" }, { "id": "T21", "title": "Third-party footprint is large before consent choice", "priority": 21, "findingIds": [ "F24" ], "guidanceId": "privacy", "status": "open" }, { "id": "T22", "title": "Consent choice blocks content and uses attention-heavy framing", "priority": 22, "findingIds": [ "F27" ], "guidanceId": "custom-button-actions", "status": "open" }, { "id": "T23", "title": "Early network and script work is excessive", "priority": 23, "findingIds": [ "F29" ], "guidanceId": "deprioritize-background-fetches", "status": "open" }, { "id": "T24", "title": "Initial DOM and heap footprint is large", "priority": 24, "findingIds": [ "F32" ], "guidanceId": "manage-recurring-intervals", "status": "open" }, { "id": "T25", "title": "No explicit high-contrast adaptation", "priority": 25, "findingIds": [ "F03" ], "guidanceId": "adapt-scrollbar-to-contrast-preferences", "status": "open" }, { "id": "T26", "title": "Route and state changes omit View Transitions", "priority": 26, "findingIds": [ "F04" ], "guidanceId": "same-document-transitions", "status": "open" }, { "id": "T27", "title": "Long product storytelling does not use declarative scroll timelines", "priority": 27, "findingIds": [ "F05" ], "guidanceId": "scrollytelling", "status": "open" }, { "id": "T28", "title": "Long pages lack declarative scroll-state-aware chrome", "priority": 28, "findingIds": [ "F06" ], "guidanceId": "scroll-progress-indicator", "status": "open" }, { "id": "T29", "title": "Menus and overlays use custom positioning instead of anchor positioning", "priority": 29, "findingIds": [ "F07" ], "guidanceId": "position-aware-tooltips", "status": "open" }, { "id": "T30", "title": "Components rely on viewport layout rather than container queries", "priority": 30, "findingIds": [ "F11" ], "guidanceId": "size-aware-styling", "status": "open" }, { "id": "T31", "title": "Public account entry exposes no passkey affordance", "priority": 31, "findingIds": [ "F25" ], "guidanceId": "passkeys", "status": "open" }, { "id": "T32", "title": "Commerce capability is not exposed as structured agent tools", "priority": 32, "findingIds": [ "F31" ], "guidanceId": "webmcp", "status": "open" } ], "budget": { "pathCount": 4, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-22T02-06-57-990Z" }