Manifest position 637 · CrUX rank bucket 1000

https://www.samsung.com

Coverage complete

Coverage-complete representative audit of the UK redirect destination.

Attempts
1 / 3
Judged checks
58 / 58
Blocked
0
Not run
0
This report has no published overall score. Blocked and not-run checks are not passes. A coverage-complete report means every check has a judged outcome; it does not mean every check passed.

All 58 atomic check outcomes

Principle / checkStatusConfidenceEvidence or reason
respect-user-preferences
respects-color-scheme
issueshighThe dark-emulated screenshot remains the same light presentation and the computed root color-scheme is normal; CSS inspection found no dark-mode adaptation.
F01 medium: No user-driven dark colour scheme
respect-user-preferences
respects-reduced-motion
issueshighUnder prefers-reduced-motion: reduce, five animations were still running (500–1500 ms), while CSS inspection found no reduced-motion rule.
F02 medium: Reduced-motion preference does not suppress motion
respect-user-preferences
respects-contrast
issueshighCSS 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.
F03 low: No explicit high-contrast adaptation
implement-natural-interactions
view-transitions
issueshighCSS inspection on all four templates found zero view-transition rules despite navigation and buying-tool state changes.
F04 low: Route and state changes omit View Transitions
implement-natural-interactions
scroll-driven-animations
issueshighThe 41,375 px product page contains rich storytelling but CSS inspection found zero animation-timeline or scroll-timeline rules.
F05 low: Long product storytelling does not use declarative scroll timelines
implement-natural-interactions
physical-gestures
passhighMobile screenshots show no horizontal overflow, and visible carousel controls use platform buttons with Previous/Next affordances rather than a pointer-only path.
provide-guided-navigation
scroll-state-aware-chrome
issueshighThe product page is 41,375 px tall, while CSS inspection found no scroll-state container queries or scroll timelines for progress/orientation.
F06 low: Long pages lack declarative scroll-state-aware chrome
provide-guided-navigation
anchored-positioning
issueshighThe site exposes navigation, filters and popup controls, but CSS inspection found zero anchor-name or position-anchor declarations.
F07 low: Menus and overlays use custom positioning instead of anchor positioning
provide-guided-navigation
directs-attention
passhighThe product and buy templates provide clear section tabs, selected-state borders, Previous/Next controls and a visible focus outline.
maximize-content-reduce-noise
no-intrusive-interruptions
issueshighDesktop screenshots of the home and buy paths show a large modal and dimmed page blocking the main content before interaction.
F08 high: Consent modal obscures every primary page on first load
maximize-content-reduce-noise
semantic-dismissible-primitives
issueshighThe visible consent overlay and popup-heavy buying experience are present, while probes report zero dialog, popover and details elements.
F09 medium: Overlay-heavy UI does not expose native dialog/popover primitives
maximize-content-reduce-noise
reduced-chrome
issueshighScreenshots show a full blocking consent panel plus a floating WhatsApp control over the product and purchase surfaces.
F10 medium: Persistent consent and chat chrome competes with product content
adapt-to-the-form-factor
responsive-no-horizontal-scroll
passhighAt 360x800 all four templates reported scrollWidth equal to clientWidth (360 px), a viewport meta tag, and zero horizontal overflow.
adapt-to-the-form-factor
component-level-responsiveness
issueshighCSS inspection on home, listing, product and buy templates found zero @container rules.
F11 low: Components rely on viewport layout rather than container queries
adapt-to-the-form-factor
input-modality-aware
passhighA 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.
support-core-task-success
clear-purpose-and-primary-action
passhighEach representative template has a specific title/H1 and clear actions, from Explore Galaxy Smartphones through Buy and device selection.
support-core-task-success
primary-flow-completion
passhighRecon 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.
support-core-task-success
clear-system-state-and-recovery
passhighThe buying tool exposes selected states, expandable sections, previous/next controls and explicit delivery/payment state; no dead screen was encountered during route traversal.
be-fast-and-stable
good-core-web-vitals
issueshighLighthouse 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.
F12 critical: Homepage loading performance is poor
be-fast-and-stable
visual-stability
issueshighThe 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.
F13 high: Major mobile layout shifts occur on key templates
be-fast-and-stable
efficient-main-thread
issueshighMobile captures recorded tasks up to 426 ms on home, 395 ms on listing and 579 ms on buy; Lighthouse measured 370 ms TBT.
F14 high: Long main-thread tasks delay interaction
be-fast-and-stable
efficient-resource-delivery
issueshighHAR captured 3.69 MB across 93 requests, 13 stylesheets and many parser-inserted VeryHigh-priority CSS candidates; several fonts lack cache headers.
F15 high: Critical delivery is heavy and render-blocking
be-fast-and-stable
trim-unused-and-duplicate-code
issueshighLighthouse estimates 211 KiB unused JavaScript and 44 KiB unused CSS; HAR shows duplicate SamsungOne fonts served from two origins.
F16 medium: Unused and duplicated payload inflates the load
be-inclusive
names-roles-labels
issueshighLighthouse failed button-name, link-name and image-alt audits; the image primitive reported 74 of 100 img elements without alt.
F17 high: Some controls and images lack accessible names
be-inclusive
sufficient-contrast
passhighLighthouse passed the colour-contrast audit, and keyboard focus rendered as a 2 px dotted outline.
be-inclusive
structure-and-focus
issueshighAll four template probes report zero main elements, although skip links and visible dotted focus are present.
F18 medium: Primary content lacks a main landmark
be-inclusive
legible-text
passhighDesktop and mobile screenshots show readable typography and clear section hierarchy; no horizontal clipping occurred at 360 px.
be-inclusive
zoom-reflow-targets-and-media
passhighAll templates reflowed to 360 px without overflow; viewport metadata does not set maximum-scale or user-scalable=no.
follow-best-practices
no-console-errors
issueshighLighthouse failed the errors-in-console audit on the homepage.
F19 medium: The page emits browser console errors
follow-best-practices
sound-document-and-assets
issueshighThe image primitive found all 100 sampled images missing width and height attributes, aligning with high CLS on three templates.
F20 high: Images omit intrinsic dimensions at scale
follow-best-practices
browser-platform-hygiene
issueshighProbes counted 11 javascript: links on home, 19 on listing and 91 on buy, while Lighthouse failed crawlable anchors.
F21 medium: JavaScript pseudo-links replace real platform controls
be-discoverable
title-and-description
passhighAll four templates expose unique descriptive titles and meta descriptions in the DOM.
be-discoverable
crawlable-and-mobile-friendly
issueshighLighthouse failed crawlable anchors and link-name; DOM probes found up to 91 javascript: links on the purchase page.
F22 medium: Action links are not consistently crawlable
be-discoverable
canonical-and-indexing-signals
passhighAll sampled pages returned 200 and exposed self-referential canonical URLs; robots.txt was reachable and no noindex was observed.
be-discoverable
structured-and-shareable-metadata
passhighEach sampled template exposes 3–5 JSON-LD blocks and eight Open Graph tags aligned with visible products/content.
be-private-and-secure
secure-transport-and-headers
issueshighHTTPS and HSTS are present, but CSP and X-Content-Type-Options are missing; six of eight cookies lack Secure and several use SameSite=None.
F23 high: Security headers and cookie flags are incomplete
be-private-and-secure
data-minimisation-and-third-parties
issueshighHAR 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.
F24 medium: Third-party footprint is large before consent choice
be-private-and-secure
in-context-permissions-and-modern-auth
issueshighThe public templates expose Sign In/Sign-Up but DOM/CSS probes found no WebAuthn/passkey affordance; no permission prompt fired on load.
F25 low: Public account entry exposes no passkey affordance
be-private-and-secure
defensive-browser-policies
issueshighHeaders include HSTS and SAMEORIGIN framing protection, but omit CSP, Referrer-Policy and Permissions-Policy.
F26 high: Defensive browser policies are incomplete
be-resilient
progressive-enhancement
passhighRaw 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.
be-resilient
resilient-runtime-behaviour
passhighRepresentative navigation, listing, product and buying templates loaded with selected states and overflow-free mobile layouts; no cut-off horizontal overlay was observed.
be-resilient
offline-and-installable
not-applicablehighThis is a public commerce/catalog MPA rather than an installable app; offline checkout would be misleading, while progressive enhancement is judged separately.
be-resilient
network-and-http-failure-states
passmediumThe commerce pages are substantially server-rendered rather than blank shells, preserving useful content when enhancement scripts are unavailable; normal HTTP responses had no errors.
be-internationalised
lang-dir-and-logical-properties
passhighAll four templates declare lang=en-GB and preserve a coherent left-to-right reading order; localized UK copy and currency are rendered consistently.
be-internationalised
locale-aware-data
passhighThe buying tool presents pound sterling amounts and UK-specific monthly-contract disclosures consistently with the en-GB locale.
be-internationalised
time-zone-correctness
not-applicablehighThe sampled catalog and purchase-selection surfaces do not present events, appointments or user-entered times requiring time-zone or DST logic.
be-trustworthy
no-dark-patterns
issueshighThe 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.
F27 medium: Consent choice blocks content and uses attention-heavy framing
be-trustworthy
humane-error-handling
passhighThe sampled selection controls use labelled radio inputs and explicit selected states; no premature error state appeared during normal buying-tool traversal.
be-trustworthy
trustworthy-input-assistance
passhighThe buy form probe found labelled radio/checkbox controls and a labelled Search input; the selection-heavy flow does not require unnecessary free-text entry.
be-trustworthy
safe-commercial-and-account-flows
passhighThe buying tool exposes upfront price, monthly price, future price rises, trade-in range, plan length and optional Care+ costs before continuation.
be-sustainable
optimised-assets
issueshighHAR transferred 3.69 MB, led by a 1.06 MB autoplay MP4, an 836 KB SVG sprite and duplicate font files from two origins.
F28 high: Homepage asset payload is disproportionate
be-sustainable
no-wasteful-work
issueshighThe homepage performs 93 requests with 30 scripts, while mobile captures record 426 ms of single-task work and Lighthouse reports substantial unused JS.
F29 medium: Early network and script work is excessive
be-sustainable
third-party-and-media-budget
issueshighThird-party origins account for 2.87 MB of 3.69 MB transferred, and the autoplay hero MP4 alone transfers 1.06 MB.
F30 high: Third-party and media costs dominate the load
be-agent-ready
structured-agent-capabilities
issueshighLighthouse agentic-browsing scored 0.67 and probes found no WebMCP or agentic form/tool registration despite a structured product-buying journey.
F31 low: Commerce capability is not exposed as structured agent tools
be-agent-ready
on-device-inference
not-applicablehighThe sampled retail catalog and deterministic buying flow has no user task that clearly benefits from built-in on-device language-model inference.
be-memory-efficient
no-leak-under-repeated-interaction
passhighAfter 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.
be-memory-efficient
bounded-footprint
issueshighThe homepage baseline heap contained 354,535 nodes and 23.45 MB self size before meaningful interaction, high for a retail landing page.
F32 medium: Initial DOM and heap footprint is large
be-memory-efficient
no-detached-dom-or-unbounded-listeners
passhighThe 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.

Provenance

Canonical report: results/atomic/reports/0637-www_samsung_com.json
Report SHA-256: 2b3206acbcda2cd5e1dfbdc30f6f3873db0fb9d0ac5a41e7cf394dd82c96f64e
Local retained report: runs/2026-07-17T17-27-24-856Z/atomic-reports/www_samsung_com/2026-07-22T02-06-57-990Z/report.json
Local evidence root: runs/2026-07-17T17-27-24-856Z/atomic-reports/www_samsung_com/2026-07-22T02-06-57-990Z
Catalog SHA-256: sha256:78ccfdb2d483f4c57d9dafed80fd86c6265585a56457c8dcfddc254b80fb44d7

Raw screenshots, HARs, traces, heaps, and other browser artifacts are retained at the local evidence root and intentionally are not committed. Artifact paths in the canonical report are relative to that root.