{ "url": "https://www.dlsite.com", "auditedAt": "2026-07-22T01:37:28Z", "mode": "report", "status": "completed", "statusDetail": "Atomic audit completed across portal, storefront, product, registration and failure-state archetypes. Not covered: authenticated checkout/payment completion, account management, adult-only section variants and every category template; these require credentials, a transaction or are represented by the same shared storefront shell.", "page": { "appType": "mpa", "framework": "Legacy server-rendered MPA with Vue/jQuery/Swiper-enhanced storefront and separate Vivion ID auth service", "notes": "Public commerce/catalogue site with locale variants. Mobile requests redirect to a home-touch route in Lighthouse, while desktop routes declare width=1024." }, "evidenceUsed": [ "screenshot", "dom", "layout-metrics", "evaluate-probe", "trace", "har", "discoverability", "headers", "cookies", "trackers", "secrets", "images", "heap-summary", "lighthouse", "robots/sitemap HTTP fetch", "Modern Web Guidance search" ], "guidanceConsulted": [ "dark-mode", "component-specific-light-dark-theme", "css", "brand-consistent-forms", "adapt-scrollbar-to-contrast-preferences", "accessibility", "directional-navigation-transitions", "carousel-slide-effects", "scrollytelling", "same-document-transitions", "cross-document-transitions", "consistent-cross-document-transitions", "group-element-transitions", "scroll-entry-exit-effects", "shrinking-header-on-scroll", "scroll-snap-realtime-feedback", "scroll-snap-state-sync", "stack-drill-down", "swipe-to-remove", "navigation-drawer", "scroll-position-aware-elements", "scrollability-affordance-hints", "scroll-target-on-load", "position-aware-tooltips", "interest-triggered-tooltips", "persistent-toast-notifications", "persistent-app-tours", "resilient-context-menus-and-nested-dropdowns", "carousel-snap-highlights", "pull-to-reveal", "highlight-text-ranges", "declarative-dialog-popover-control", "persistent-top-layer-ui", "search-hidden-content", "light-dismiss-a-dialog", "html", "animate-to-from-top-layer", "defer-rendering-heavy-content", "performance", "improve-text-layout-and-legibility", "efficient-background-processing", "css-layout", "size-aware-styling", "forms", "fluid-scaling", "interactive-content-reveal", "scroll-progress-indicator", "capture-location-agnostic-data", "passkey-reauthentication", "accessible-error-announcement", "required-field-feedback", "stabilize-reactive-state", "webmcp", "optimize-preload-priority", "identify-inp-causes", "optimize-image-priority", "visually-stable-mixed-fonts", "visually-stable-font-fallbacks", "calculate-with-intrinsic-sizes", "schedule-tasks-by-priority", "break-up-long-tasks", "identify-heavy-scripts", "optimize-script-priority", "reduce-style-repetition", "style-parent-with-has", "branded-select-styling", "precise-text-alignment", "autofill-sign-in-form", "security", "agentic-forms", "passkey-conditional-create", "validate-input-after-interaction", "deliver-optimized-decorative-images", "shaped-cutouts", "translator", "language-detection", "summarizer", "language-model", "passkey-management", "privacy", "passkey-authentication", "passkey-registration", "full-session-analytics", "passkeys", "physics-based-easing", "parallax-scroll-effects", "detect-initial-visibility-state", "batch-analytics-events", "support-global-calendar-systems", "calculate-event-differentials", "manage-recurring-intervals", "model-partial-time-concepts", "coordinate-global-events", "sequence-distributed-events", "select-menu-interaction", "autofill-payment-form", "autofill-address-form", "autofill-sign-up-form", "resolution-optimized-pseudo-elements", "deprioritize-background-fetches", "agentic-javascript-tools", "faster-spa-view-transitions", "animate-to-intrinsic-sizes", "move-dom-element-without-losing-state" ], "artifacts": [ { "type": "other", "path": "evidence/coverage-manifest.json", "caption": "coverage manifest" }, { "type": "other", "path": "evidence/guidance-list.json", "caption": "guidance list" }, { "type": "other", "path": "evidence/guidance-searches.json", "caption": "guidance searches" }, { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "home desktop", "findingIds": [ "F007" ] }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "home dom" }, { "type": "lighthouse", "path": "evidence/lighthouse-mobile-summary.json", "caption": "lighthouse mobile summary", "findingIds": [ "F012", "F014", "F015", "F016", "F017", "F018", "F019", "F022", "F023", "F025", "F026", "F040" ] }, { "type": "lighthouse", "path": "evidence/lighthouse-mobile.json", "caption": "lighthouse mobile" }, { "type": "lighthouse", "path": "evidence/lighthouse-register-summary.json", "caption": "lighthouse register summary", "findingIds": [ "F019", "F020", "F022", "F023" ] }, { "type": "lighthouse", "path": "evidence/lighthouse-register.json", "caption": "lighthouse register" }, { "type": "other", "path": "evidence/not-found-status.txt", "caption": "not found status" }, { "type": "other", "path": "evidence/not-found.html", "caption": "not found" }, { "type": "screenshot", "path": "evidence/product-desktop.png", "caption": "product desktop", "findingIds": [ "F007", "F013", "F036" ] }, { "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" }, { "type": "dom", "path": "evidence/product-dom.json", "caption": "product dom" }, { "type": "layout", "path": "evidence/product-mobile-layout.json", "caption": "product mobile layout" }, { "type": "screenshot", "path": "evidence/product-mobile.png", "caption": "product mobile", "findingIds": [ "F010", "F021" ] }, { "type": "other", "path": "evidence/product-probe.json", "caption": "product probe", "findingIds": [ "F032" ] }, { "type": "screenshot", "path": "evidence/register-dark.png", "caption": "register dark", "findingIds": [ "F001" ] }, { "type": "screenshot", "path": "evidence/register-desktop.png", "caption": "register desktop" }, { "type": "dom", "path": "evidence/register-dom.json", "caption": "register dom" }, { "type": "other", "path": "evidence/register-invalid-probe.json", "caption": "register invalid probe", "findingIds": [ "F034" ] }, { "type": "screenshot", "path": "evidence/register-mobile.png", "caption": "register mobile", "findingIds": [ "F007", "F013", "F036" ] }, { "type": "other", "path": "evidence/register-probe.json", "caption": "register probe", "findingIds": [ "F018", "F020", "F022", "F029", "F035" ] }, { "type": "other", "path": "evidence/robots.txt", "caption": "robots" }, { "type": "other", "path": "evidence/sitemap.xml", "caption": "sitemap" }, { "type": "other", "path": "evidence/store-contrast-focus.json", "caption": "store contrast focus" }, { "type": "other", "path": "evidence/store-cookies.json", "caption": "store cookies", "findingIds": [ "F027", "F033" ] }, { "type": "screenshot", "path": "evidence/store-dark.png", "caption": "store dark", "findingIds": [ "F001" ] }, { "type": "screenshot", "path": "evidence/store-desktop.png", "caption": "store desktop", "findingIds": [ "F033" ] }, { "type": "screenshot", "path": "evidence/store-discoverability-crawler.png", "caption": "store discoverability crawler", "findingIds": [ "F031" ] }, { "type": "screenshot", "path": "evidence/store-discoverability-rendered.png", "caption": "store discoverability rendered" }, { "type": "discoverability", "path": "evidence/store-discoverability.json", "caption": "store discoverability", "findingIds": [ "F031" ] }, { "type": "dom", "path": "evidence/store-dom.json", "caption": "store dom" }, { "type": "other", "path": "evidence/store-en-locale.json", "caption": "store en locale" }, { "type": "other", "path": "evidence/store-headers.json", "caption": "store headers", "findingIds": [ "F027", "F030" ] }, { "type": "heap", "path": "evidence/store-heap-baseline.json", "caption": "store heap baseline", "findingIds": [ "F041" ] }, { "type": "heap", "path": "evidence/store-heap-post-scroll.json", "caption": "store heap post scroll" }, { "type": "heap", "path": "evidence/store-heap-post.json", "caption": "store heap post" }, { "type": "other", "path": "evidence/store-images.json", "caption": "store images", "findingIds": [ "F018", "F024", "F037" ] }, { "type": "screenshot", "path": "evidence/store-mobile-ja.png", "caption": "store mobile ja" }, { "type": "layout", "path": "evidence/store-mobile-layout.json", "caption": "store mobile layout", "findingIds": [ "F010" ] }, { "type": "screenshot", "path": "evidence/store-mobile.png", "caption": "store mobile", "findingIds": [ "F005", "F009", "F010", "F012", "F021" ] }, { "type": "other", "path": "evidence/store-probe.json", "caption": "store probe", "findingIds": [ "F003", "F006", "F008", "F011", "F020", "F026", "F032", "F041" ] }, { "type": "other", "path": "evidence/store-reduced-motion.json", "caption": "store reduced motion", "findingIds": [ "F002" ] }, { "type": "other", "path": "evidence/store-resource-dom-confirmation.json", "caption": "store resource dom confirmation", "findingIds": [ "F004", "F016", "F024" ] }, { "type": "other", "path": "evidence/store-secrets.json", "caption": "store secrets" }, { "type": "har-summary", "path": "evidence/store-summary.json", "caption": "store summary", "findingIds": [ "F016", "F017", "F028", "F038", "F039", "F041" ] }, { "type": "trace-summary", "path": "evidence/store-trace-summary.json", "caption": "store trace summary", "findingIds": [ "F014", "F015", "F038" ] }, { "type": "trace", "path": "evidence/store-trace.json", "caption": "store trace" }, { "type": "other", "path": "evidence/store-trackers.json", "caption": "store trackers", "findingIds": [ "F028", "F033", "F039" ] }, { "type": "har", "path": "evidence/store.har", "caption": "store" } ], "config": { "loaded": false }, "coverage": { "catalogVersion": "modern-web-guidance@0.0.172", "catalogChecksum": "sha256:78ccfdb2d483f4c57d9dafed80fd86c6265585a56457c8dcfddc254b80fb44d7", "expected": 58, "recorded": 58, "judged": 58, "blocked": 0, "notRun": 0, "missing": 0, "unknown": 0, "duplicates": 0, "complete": true }, "checkOutcomes": [ { "principleId": "respect-user-preferences", "checkId": "respects-color-scheme", "status": "issues", "confidence": "high", "method": "Active audit using store-dark.png, register-dark.png", "evidence": "Dark-media screenshots are pixel-identical to light captures and computed color-scheme is normal; storefront and registration remain white.", "pathIds": [ "storefront", "register" ], "artifacts": [ "evidence/store-dark.png", "evidence/register-dark.png" ], "findingIds": [ "F001" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "issues", "confidence": "medium", "method": "Active audit using store-reduced-motion.json", "evidence": "With prefers-reduced-motion: reduce active, four 500–1000 ms animations and many transitions remained configured.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-reduced-motion.json" ], "findingIds": [ "F002" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "pass", "confidence": "medium", "method": "Active audit using store-contrast-focus.json", "evidence": "Under prefers-contrast: more, text and controls remained visible and keyboard focus exposed a 1px auto outline.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-contrast-focus.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "issues", "confidence": "low", "method": "Active audit using store-probe.json", "evidence": "DOM/CSS probe found no view-transition usage on route-rich storefront/product navigation.", "pathIds": [ "storefront", "product" ], "artifacts": [ "evidence/store-probe.json" ], "findingIds": [ "F003" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "pass", "confidence": "medium", "method": "Active audit using store-desktop.png", "evidence": "No scroll-linked visual effect requiring a scroll event handler was observed; the page uses ordinary scrolling and static sections.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-desktop.png" ] }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "issues", "confidence": "medium", "method": "Active audit using store-resource-dom-confirmation.json", "evidence": "Carousel-heavy storefront uses Swiper 4 and no declarative scroll-snap/overscroll signal was found in the inspected UI/CSS.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-resource-dom-confirmation.json" ], "findingIds": [ "F004" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "issues", "confidence": "medium", "method": "Active audit using store-mobile.png", "evidence": "The long storefront has static dense chrome and no scroll-state container-query signal or progress/compact state in inspected CSS.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-mobile.png" ], "findingIds": [ "F005" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "issues", "confidence": "medium", "method": "Active audit using store-probe.json", "evidence": "Multiple dropdown/overlay classes exist, but no anchor positioning or semantic popover was present in the rendered DOM.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-probe.json" ], "findingIds": [ "F006" ] }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "pass", "confidence": "high", "method": "Active audit using store-mobile.png, product-desktop.png", "evidence": "Visible category tabs, breadcrumbs on product metadata, section headings and ranking labels consistently communicate location and next navigation choices.", "pathIds": [ "storefront", "product" ], "artifacts": [ "evidence/store-mobile.png", "evidence/product-desktop.png" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "issues", "confidence": "high", "method": "Active audit using home-desktop.png, product-desktop.png, register-mobile.png", "evidence": "Every fresh storefront/product load is covered by a full-page language modal, and registration is covered by a persistent consent banner.", "pathIds": [ "portal", "storefront", "product", "register" ], "artifacts": [ "evidence/home-desktop.png", "evidence/product-desktop.png", "evidence/register-mobile.png" ], "findingIds": [ "F007" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "issues", "confidence": "high", "method": "Active audit using store-probe.json", "evidence": "The blocking language chooser is a fixed DIV; probes found zero dialog, popover, and details elements.", "pathIds": [ "storefront", "product" ], "artifacts": [ "evidence/store-probe.json" ], "findingIds": [ "F008" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "issues", "confidence": "high", "method": "Active audit using store-mobile.png", "evidence": "The mobile storefront is a scaled 1024px desktop canvas with stacked campaign, search, category and side-navigation chrome, leaving tiny content.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-mobile.png" ], "findingIds": [ "F009" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "issues", "confidence": "high", "method": "Active audit using store-mobile.png, product-mobile.png, store-mobile-layout.json", "evidence": "At a requested 360x800 viewport the site declares viewport width=1024; layout metrics report innerWidth 1024 and Chrome scales the entire desktop layout to 35%, producing unreadably small UI.", "pathIds": [ "storefront", "product" ], "artifacts": [ "evidence/store-mobile.png", "evidence/product-mobile.png", "evidence/store-mobile-layout.json" ], "findingIds": [ "F010" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "issues", "confidence": "medium", "method": "Active audit using store-probe.json", "evidence": "The rendered storefront CSS probe found no @container signal; cards and navigation remain desktop-scaled instead of adapting locally.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-probe.json" ], "findingIds": [ "F011" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "issues", "confidence": "high", "method": "Active audit using lighthouse-mobile-summary.json, store-mobile.png", "evidence": "Lighthouse failed target-size on the mobile storefront; scaled desktop controls become very small, although focus outline is present.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/lighthouse-mobile-summary.json", "evidence/store-mobile.png" ], "findingIds": [ "F012" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "high", "method": "Active audit using store-desktop.png, product-desktop.png", "evidence": "Storefront title/search/categories and product title, price and purchase buttons make browsing and buying purpose clear after the locale gate.", "pathIds": [ "storefront", "product" ], "artifacts": [ "evidence/store-desktop.png", "evidence/product-desktop.png" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "issues", "confidence": "high", "method": "Active audit using product-desktop.png, register-mobile.png", "evidence": "A fresh product journey is blocked before interaction by a locale overlay even when locale=ja_JP is in the URL; registration then adds a second consent obstruction.", "pathIds": [ "product", "register" ], "artifacts": [ "evidence/product-desktop.png", "evidence/register-mobile.png" ], "findingIds": [ "F013" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "pass", "confidence": "high", "method": "Active audit using register-invalid-probe.json, not-found-status.txt", "evidence": "Invalid email uses browser validation, and an invalid storefront URL returns an intentional HTTP 404 page rather than a false success or blank shell.", "pathIds": [ "register", "error404" ], "artifacts": [ "evidence/register-invalid-probe.json", "evidence/not-found-status.txt" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Active audit using lighthouse-mobile-summary.json, store-trace-summary.json", "evidence": "Mobile Lighthouse measured LCP 34.3s, TBT 1.62s and performance 0.28; trace on desktop still measured LCP 4.82s and TBT 204ms.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/lighthouse-mobile-summary.json", "evidence/store-trace-summary.json" ], "findingIds": [ "F014" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "pass", "confidence": "high", "method": "Active audit using store-mobile-layout.json, product-mobile-layout.json", "evidence": "Layout observer measured CLS 0.091 on storefront and 0.089 on product, within the good <0.1 threshold despite image sizing opportunities.", "pathIds": [ "storefront", "product" ], "artifacts": [ "evidence/store-mobile-layout.json", "evidence/product-mobile-layout.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "issues", "confidence": "high", "method": "Active audit using store-trace-summary.json, lighthouse-mobile-summary.json", "evidence": "Trace recorded six long tasks, longest 186ms and 204ms TBT; Lighthouse mobile reported 11.2s main-thread work and 6.7s JS execution.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-trace-summary.json", "evidence/lighthouse-mobile-summary.json" ], "findingIds": [ "F015" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Active audit using store-summary.json, store-resource-dom-confirmation.json, lighthouse-mobile-summary.json", "evidence": "HAR recorded 398 requests/5.88MB, ten parser-inserted VeryHigh stylesheets and missing cache headers; mobile Lighthouse found 11.79MB and redirect/cache failures.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-summary.json", "evidence/store-resource-dom-confirmation.json", "evidence/lighthouse-mobile-summary.json" ], "findingIds": [ "F016" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Active audit using lighthouse-mobile-summary.json, store-summary.json", "evidence": "Lighthouse estimated 1,728KiB unused JavaScript and 156KiB unused CSS; HAR includes 119 scripts and repeated TikTok/Google/Facebook tags.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/lighthouse-mobile-summary.json", "evidence/store-summary.json" ], "findingIds": [ "F017" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Active audit using lighthouse-mobile-summary.json, store-images.json, register-probe.json", "evidence": "Lighthouse failed button-name and ARIA parent checks; probes found 17 scanned images missing alt and the registration email has no associated label.", "pathIds": [ "storefront", "register" ], "artifacts": [ "evidence/lighthouse-mobile-summary.json", "evidence/store-images.json", "evidence/register-probe.json" ], "findingIds": [ "F018" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "issues", "confidence": "high", "method": "Active audit using lighthouse-mobile-summary.json, lighthouse-register-summary.json", "evidence": "Lighthouse failed color contrast on both storefront and registration.", "pathIds": [ "storefront", "register" ], "artifacts": [ "evidence/lighthouse-mobile-summary.json", "evidence/lighthouse-register-summary.json" ], "findingIds": [ "F019" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "issues", "confidence": "high", "method": "Active audit using store-probe.json, register-probe.json, lighthouse-register-summary.json", "evidence": "Registration has duplicate H1s and no main landmark per Lighthouse; storefront begins with modal H1 before page H1 and has ARIA structure failures.", "pathIds": [ "storefront", "register" ], "artifacts": [ "evidence/store-probe.json", "evidence/register-probe.json", "evidence/lighthouse-register-summary.json" ], "findingIds": [ "F020" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "issues", "confidence": "high", "method": "Active audit using store-mobile.png, product-mobile.png", "evidence": "The 1024px canvas is scaled to 35% on a 360px device, making navigation, product metadata and side filters extremely small.", "pathIds": [ "storefront", "product" ], "artifacts": [ "evidence/store-mobile.png", "evidence/product-mobile.png" ], "findingIds": [ "F021" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "issues", "confidence": "high", "method": "Active audit using register-probe.json, lighthouse-register-summary.json, lighthouse-mobile-summary.json", "evidence": "Registration sets maximum-scale=1 and Lighthouse fails meta-viewport; storefront also fails target-size and uses a fixed 1024px viewport.", "pathIds": [ "storefront", "register" ], "artifacts": [ "evidence/register-probe.json", "evidence/lighthouse-register-summary.json", "evidence/lighthouse-mobile-summary.json" ], "findingIds": [ "F022" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "issues", "confidence": "high", "method": "Active audit using lighthouse-mobile-summary.json, lighthouse-register-summary.json", "evidence": "Lighthouse reported browser console errors on both storefront and registration.", "pathIds": [ "storefront", "register" ], "artifacts": [ "evidence/lighthouse-mobile-summary.json", "evidence/lighthouse-register-summary.json" ], "findingIds": [ "F023" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "issues", "confidence": "high", "method": "Active audit using store-images.json, store-resource-dom-confirmation.json", "evidence": "Doctype/UTF-8 are valid, but image audit found 66/100 missing dimensions, 36 below-fold images not lazy and six oversized.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-images.json", "evidence/store-resource-dom-confirmation.json" ], "findingIds": [ "F024" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "issues", "confidence": "medium", "method": "Active audit using lighthouse-mobile-summary.json", "evidence": "Lighthouse found missing source maps, DevTools inspector issues and three BFCache failure reasons.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/lighthouse-mobile-summary.json" ], "findingIds": [ "F025" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "high", "method": "Active audit using store-probe.json, product-probe.json", "evidence": "Storefront and product expose distinct descriptive titles and meta descriptions in rendered and raw HTML.", "pathIds": [ "storefront", "product" ], "artifacts": [ "evidence/store-probe.json", "evidence/product-probe.json" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "issues", "confidence": "high", "method": "Active audit using store-probe.json, lighthouse-mobile-summary.json", "evidence": "Lighthouse found non-crawlable anchors; 21 storefront links are missing href or use #, and fixed width=1024 defeats mobile-friendly rendering.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-probe.json", "evidence/lighthouse-mobile-summary.json" ], "findingIds": [ "F026" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "pass", "confidence": "high", "method": "Active audit using store-probe.json, product-probe.json, robots.txt", "evidence": "HTTP 200 pages have canonical URLs; robots.txt permits public core pages and publishes section sitemap indexes.", "pathIds": [ "storefront", "product" ], "artifacts": [ "evidence/store-probe.json", "evidence/product-probe.json", "evidence/robots.txt" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "pass", "confidence": "high", "method": "Active audit using store-probe.json, product-probe.json", "evidence": "Storefront has WebSite JSON-LD and Open Graph data; product has breadcrumb JSON-LD plus matching title, description, URL and image previews.", "pathIds": [ "storefront", "product" ], "artifacts": [ "evidence/store-probe.json", "evidence/product-probe.json" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Active audit using store-headers.json, store-cookies.json", "evidence": "HTTPS/HSTS and frame protection exist, but 31 cookies were marked insecure, most SameSite=None; CSP only declares frame-ancestors and nosniff is absent.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-headers.json", "evidence/store-cookies.json" ], "findingIds": [ "F027" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "issues", "confidence": "high", "method": "Active audit using store-trackers.json, store-summary.json", "evidence": "Tracker probe found 41 third-party origins and eight known tracker domains; HAR attributes 315 requests/3.63MB to third parties on first load.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-trackers.json", "evidence/store-summary.json" ], "findingIds": [ "F028" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "issues", "confidence": "medium", "method": "Active audit using register-probe.json", "evidence": "No permission prompt fired on load, but registration exposes social/email account creation and no passkey/WebAuthn option or credential autocomplete was found.", "pathIds": [ "register" ], "artifacts": [ "evidence/register-probe.json" ], "findingIds": [ "F029" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Active audit using store-headers.json", "evidence": "Headers lack Referrer-Policy, Permissions-Policy and nosniff; CSP is limited to frame-ancestors. HSTS and SAMEORIGIN are present.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-headers.json" ], "findingIds": [ "F030" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "issues", "confidence": "high", "method": "Active audit using store-discoverability.json, store-discoverability-crawler.png", "evidence": "Non-JS discoverability is only 35% on storefront; crawler screenshot loses main rankings/product content and leaves a large blank content region.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-discoverability.json", "evidence/store-discoverability-crawler.png" ], "findingIds": [ "F031" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "issues", "confidence": "medium", "method": "Active audit using store-probe.json, product-probe.json", "evidence": "Blocking locale UI is custom fixed DIV rather than top-layer dialog/popover; it obscures every deep link and lacks declarative dismissal semantics.", "pathIds": [ "storefront", "product" ], "artifacts": [ "evidence/store-probe.json", "evidence/product-probe.json" ], "findingIds": [ "F032" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative path recon", "evidence": "DLsite is an intrinsically online commerce/catalogue service; installability and offline transaction support are not required for the representative public purchase journey.", "reason": "DLsite is an intrinsically online commerce/catalogue service; installability and offline transaction support are not required for the representative public purchase journey." }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "pass", "confidence": "high", "method": "Active audit using not-found-status.txt, not-found.html", "evidence": "A nonexistent storefront route returns HTTP 404 with a branded 404 document instead of a blank shell or misleading 200.", "pathIds": [ "error404" ], "artifacts": [ "evidence/not-found-status.txt", "evidence/not-found.html" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "pass", "confidence": "high", "method": "Active audit using store-probe.json, store-en-locale.json", "evidence": "Japanese and English routes set ja-JP/en-US correctly and provide a 14-language selector.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-probe.json", "evidence/store-en-locale.json" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "pass", "confidence": "medium", "method": "Active audit using store-en-locale.json, product-desktop.png", "evidence": "English locale changes document language/title and exposes locale-specific translated catalogue links; Japanese prices/content are localised on product/store screens.", "pathIds": [ "storefront", "product" ], "artifacts": [ "evidence/store-en-locale.json", "evidence/product-desktop.png" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative path recon", "evidence": "The audited catalogue, product and registration surfaces expose no user-scheduled event or time-zone-sensitive data requiring DST coordination.", "reason": "The audited catalogue, product and registration surfaces expose no user-scheduled event or time-zone-sensitive data requiring DST coordination." }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "issues", "confidence": "high", "method": "Active audit using store-cookies.json, store-trackers.json, store-desktop.png", "evidence": "Before any visible consent choice on the storefront, 31 cookies and 41 third-party origins are active; the only first-load prompt is a compulsory language gate.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-cookies.json", "evidence/store-trackers.json", "evidence/store-desktop.png" ], "findingIds": [ "F033" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "issues", "confidence": "high", "method": "Active audit using register-invalid-probe.json", "evidence": "After entering an invalid email and blurring, browser validity fails but no visible error, aria-invalid or described-by error is added.", "pathIds": [ "register" ], "artifacts": [ "evidence/register-invalid-probe.json" ], "findingIds": [ "F034" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "issues", "confidence": "high", "method": "Active audit using register-probe.json", "evidence": "Registration email has no label and no autocomplete token, preventing reliable autofill assistance.", "pathIds": [ "register" ], "artifacts": [ "evidence/register-probe.json" ], "findingIds": [ "F035" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "issues", "confidence": "medium", "method": "Active audit using product-desktop.png, register-mobile.png", "evidence": "Pricing and purchase actions are visible, but a first-time product deep link is blocked by locale selection and registration is partly hidden by consent UI.", "pathIds": [ "product", "register" ], "artifacts": [ "evidence/product-desktop.png", "evidence/register-mobile.png" ], "findingIds": [ "F036" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "Active audit using store-images.json", "evidence": "Image audit found six oversized images, 40 without srcset, seven legacy-format images and 36 below-fold images loaded eagerly.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-images.json" ], "findingIds": [ "F037" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "issues", "confidence": "high", "method": "Active audit using store-summary.json, store-trace-summary.json", "evidence": "First load makes 398 requests including 73 fetch/XHR and repeated analytics scripts; 119 scripts contribute to long tasks and unused code.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-summary.json", "evidence/store-trace-summary.json" ], "findingIds": [ "F038" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "Active audit using store-summary.json, store-trackers.json", "evidence": "Third parties consume 3.63MB across 315 requests, including 1.57MB Google Tag Manager and multiple ad/analytics vendors.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-summary.json", "evidence/store-trackers.json" ], "findingIds": [ "F039" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "issues", "confidence": "medium", "method": "Active audit using lighthouse-mobile-summary.json", "evidence": "This commerce site is a plausible agentic purchasing/search surface, but Lighthouse agentic score is 0.32 and no WebMCP tools are registered.", "pathIds": [ "storefront", "product" ], "artifacts": [ "evidence/lighthouse-mobile-summary.json" ], "findingIds": [ "F040" ] }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative path recon", "evidence": "No audited task clearly benefits from built-in on-device inference; catalogue search and purchase do not require a local language model.", "reason": "No audited task clearly benefits from built-in on-device inference; catalogue search and purchase do not require a local language model." }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "pass", "confidence": "medium", "method": "Active audit using store-heap-baseline.json, store-heap-post-scroll.json", "evidence": "After ten repeated scroll cycles, heap self size rose only 0.30MB (99.51MB to 99.81MB, about 0.3%); no Detached constructor appeared.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-heap-baseline.json", "evidence/store-heap-post-scroll.json" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "issues", "confidence": "medium", "method": "Active audit using store-heap-baseline.json, store-probe.json, store-summary.json", "evidence": "Baseline heap summary contains 1.57M heap nodes and 99.5MB self size for a catalogue landing page, alongside 6,650 DOM elements and 119 scripts.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-heap-baseline.json", "evidence/store-probe.json", "evidence/store-summary.json" ], "findingIds": [ "F041" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "medium", "method": "Active audit using store-heap-baseline.json, store-heap-post-scroll.json", "evidence": "Before/after heap summaries expose no Detached constructor; Set count stayed flat and the small post-scroll growth does not show unbounded accumulation.", "pathIds": [ "storefront" ], "artifacts": [ "evidence/store-heap-baseline.json", "evidence/store-heap-post-scroll.json" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "F001", "F002" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "issues", "findingIds": [ "F003", "F004" ] }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "issues", "findingIds": [ "F005", "F006" ] }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "F007", "F008", "F009" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F010", "F011", "F012" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "issues", "findingIds": [ "F013" ] }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F014", "F015", "F016", "F017" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F018", "F019", "F020", "F021", "F022" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "F023", "F024", "F025" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "F026" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F027", "F028", "F029", "F030" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "issues", "findingIds": [ "F031", "F032" ] }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "pass" }, { "principleId": "be-trustworthy", "expectation": "default", "status": "issues", "findingIds": [ "F033", "F034", "F035", "F036" ] }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F037", "F038", "F039" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "issues", "findingIds": [ "F040" ] }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "issues", "findingIds": [ "F041" ] } ], "paths": [ { "id": "portal", "description": "Global portal and first-visit language-selection state; represents entry and locale choice.", "url": "https://www.dlsite.com/", "conditions": [ "desktop", "first visit", "prefers-color-scheme: dark" ], "result": "issues" }, { "id": "storefront", "description": "Doujin storefront home; represents navigation, search, rankings, listing cards and initial browsing.", "url": "https://www.dlsite.com/home/?locale=ja_JP", "conditions": [ "desktop", "360x800 mobile emulation", "prefers-color-scheme: dark", "prefers-reduced-motion: reduce", "prefers-contrast: more", "JavaScript disabled crawler view" ], "result": "issues" }, { "id": "product", "description": "Representative sitemap product detail; represents product metadata, pricing, purchase entry and recommendations.", "url": "https://www.dlsite.com/home/work/=/product_id/RJ001016.html?locale=ja_JP", "conditions": [ "desktop", "360x800 mobile emulation", "JavaScript disabled crawler view" ], "result": "issues" }, { "id": "register", "description": "Registration path reached from account flow; represents a primary form, consent and validation.", "url": "https://www.dlsite.com/home/regist/user", "conditions": [ "desktop", "360x800 mobile emulation", "prefers-color-scheme: dark", "invalid email blur" ], "result": "issues" }, { "id": "error404", "description": "Deliberately invalid storefront route; represents HTTP/network failure recovery.", "url": "https://www.dlsite.com/home/this-route-does-not-exist-atomic-audit", "conditions": [ "HTTP 404" ], "result": "pass" } ], "findings": [ { "id": "F001", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "user-experience", "severity": "high", "confidence": "high", "summary": "Dark-media screenshots are pixel-identical to light captures and computed color-scheme is normal.", "evidence": "Dark-media screenshots are pixel-identical to light captures and computed color-scheme is normal; storefront and registration remain white.", "artifacts": [ "evidence/store-dark.png", "evidence/register-dark.png" ], "suggestedFix": "Add system-driven light/dark tokens with color-scheme and prefers-color-scheme.", "effort": "large" }, { "id": "F002", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "respect-user-preferences", "principleCheckId": "respects-reduced-motion", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "medium", "summary": "With prefers-reduced-motion: reduce active, four 500–1000 ms animations and many transitions remained configured..", "evidence": "With prefers-reduced-motion: reduce active, four 500–1000 ms animations and many transitions remained configured.", "artifacts": [ "evidence/store-reduced-motion.json" ], "suggestedFix": "Disable non-essential animations and shorten essential transitions in a reduce media query.", "effort": "medium" }, { "id": "F003", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "implement-natural-interactions", "principleCheckId": "view-transitions", "guidanceId": "same-document-transitions", "guidanceCategory": "user-experience", "severity": "low", "confidence": "low", "summary": "DOM/CSS probe found no view-transition usage on route-rich storefront/product navigation..", "evidence": "DOM/CSS probe found no view-transition usage on route-rich storefront/product navigation.", "artifacts": [ "evidence/store-probe.json" ], "suggestedFix": "Use cross-document or same-document View Transitions for meaningful route/state changes, with reduced-motion handling.", "effort": "small" }, { "id": "F004", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "implement-natural-interactions", "principleCheckId": "physical-gestures", "guidanceId": "carousel-snap-highlights", "guidanceCategory": "web-quality", "severity": "low", "confidence": "medium", "summary": "Carousel-heavy storefront uses Swiper 4 and no declarative scroll-snap/overscroll signal was found in the inspected UI/CSS..", "evidence": "Carousel-heavy storefront uses Swiper 4 and no declarative scroll-snap/overscroll signal was found in the inspected UI/CSS.", "artifacts": [ "evidence/store-resource-dom-confirmation.json" ], "suggestedFix": "Move carousel interaction to native overflow plus scroll-snap where feasible, retaining pointer and keyboard controls.", "effort": "small" }, { "id": "F005", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "provide-guided-navigation", "principleCheckId": "scroll-state-aware-chrome", "guidanceId": "scroll-position-aware-elements", "guidanceCategory": "user-experience", "severity": "low", "confidence": "medium", "summary": "The long storefront has static dense chrome and no scroll-state container-query signal or progress/compact state in inspected CSS..", "evidence": "The long storefront has static dense chrome and no scroll-state container-query signal or progress/compact state in inspected CSS.", "artifacts": [ "evidence/store-mobile.png" ], "suggestedFix": "Use scroll-state-aware sticky chrome or a compact header to preserve orientation without consuming the viewport.", "effort": "small" }, { "id": "F006", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "provide-guided-navigation", "principleCheckId": "anchored-positioning", "guidanceId": "position-aware-tooltips", "guidanceCategory": "user-experience", "severity": "low", "confidence": "medium", "summary": "Multiple dropdown/overlay classes exist, but no anchor positioning or semantic popover was present in the rendered DOM..", "evidence": "Multiple dropdown/overlay classes exist, but no anchor positioning or semantic popover was present in the rendered DOM.", "artifacts": [ "evidence/store-probe.json" ], "suggestedFix": "Use popover plus CSS anchor positioning and fallback positions for menus/tooltips.", "effort": "small" }, { "id": "F007", "pathId": "portal", "url": "https://www.dlsite.com/", "principleId": "maximize-content-reduce-noise", "principleCheckId": "no-intrusive-interruptions", "guidanceId": "light-dismiss-a-dialog", "guidanceCategory": "web-quality", "severity": "high", "confidence": "high", "summary": "Every fresh storefront/product load is covered by a full-page language modal, and registration is covered by a persistent consent banner..", "evidence": "Every fresh storefront/product load is covered by a full-page language modal, and registration is covered by a persistent consent banner.", "artifacts": [ "evidence/home-desktop.png", "evidence/product-desktop.png", "evidence/register-mobile.png" ], "suggestedFix": "Persist locale earlier, avoid blocking repeat URL-locale visits, and make non-essential banners non-obscuring and dismissible.", "effort": "large" }, { "id": "F008", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "maximize-content-reduce-noise", "principleCheckId": "semantic-dismissible-primitives", "guidanceId": "declarative-dialog-popover-control", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "The blocking language chooser is a fixed DIV.", "evidence": "The blocking language chooser is a fixed DIV; probes found zero dialog, popover, and details elements.", "artifacts": [ "evidence/store-probe.json" ], "suggestedFix": "Implement the blocking flow as a labelled dialog and transient UI with popover/light-dismiss.", "effort": "medium" }, { "id": "F009", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "maximize-content-reduce-noise", "principleCheckId": "reduced-chrome", "guidanceId": "defer-rendering-heavy-content", "guidanceCategory": "performance", "severity": "medium", "confidence": "high", "summary": "The mobile storefront is a scaled 1024px desktop canvas with stacked campaign, search, category and side-navigation chrome, leaving tiny content..", "evidence": "The mobile storefront is a scaled 1024px desktop canvas with stacked campaign, search, category and side-navigation chrome, leaving tiny content.", "artifacts": [ "evidence/store-mobile.png" ], "suggestedFix": "Prioritise search/results and progressively disclose secondary campaign and category chrome on small screens.", "effort": "medium" }, { "id": "F010", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "adapt-to-the-form-factor", "principleCheckId": "responsive-no-horizontal-scroll", "guidanceId": "fluid-scaling", "guidanceCategory": "web-quality", "severity": "critical", "confidence": "high", "summary": "At a requested 360x800 viewport the site declares viewport width=1024.", "evidence": "At a requested 360x800 viewport the site declares viewport width=1024; layout metrics report innerWidth 1024 and Chrome scales the entire desktop layout to 35%, producing unreadably small UI.", "artifacts": [ "evidence/store-mobile.png", "evidence/product-mobile.png", "evidence/store-mobile-layout.json" ], "suggestedFix": "Use width=device-width, intrinsic fluid layout and responsive card/navigation patterns rather than a fixed 1024px viewport.", "effort": "large" }, { "id": "F011", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "adapt-to-the-form-factor", "principleCheckId": "component-level-responsiveness", "guidanceId": "size-aware-styling", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "medium", "summary": "The rendered storefront CSS probe found no @container signal.", "evidence": "The rendered storefront CSS probe found no @container signal; cards and navigation remain desktop-scaled instead of adapting locally.", "artifacts": [ "evidence/store-probe.json" ], "suggestedFix": "Introduce container queries for reused card, ranking, search and navigation components.", "effort": "medium" }, { "id": "F012", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Lighthouse failed target-size on the mobile storefront.", "evidence": "Lighthouse failed target-size on the mobile storefront; scaled desktop controls become very small, although focus outline is present.", "artifacts": [ "evidence/lighthouse-mobile-summary.json", "evidence/store-mobile.png" ], "suggestedFix": "Provide at least 24–44 CSS px targets with spacing, keyboard-visible focus and non-hover alternatives.", "effort": "large" }, { "id": "F013", "pathId": "product", "url": "https://www.dlsite.com/home/work/=/product_id/RJ001016.html?locale=ja_JP", "principleId": "support-core-task-success", "principleCheckId": "primary-flow-completion", "guidanceId": "forms", "guidanceCategory": "web-quality", "severity": "high", "confidence": "high", "summary": "A fresh product journey is blocked before interaction by a locale overlay even when locale=ja_JP is in the URL.", "evidence": "A fresh product journey is blocked before interaction by a locale overlay even when locale=ja_JP is in the URL; registration then adds a second consent obstruction.", "artifacts": [ "evidence/product-desktop.png", "evidence/register-mobile.png" ], "suggestedFix": "Persist locale without blocking deep links and keep registration/purchase steps unobscured with clear continuity.", "effort": "large" }, { "id": "F014", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "performance", "guidanceCategory": "performance", "severity": "critical", "confidence": "high", "summary": "Mobile Lighthouse measured LCP 34.3s, TBT 1.62s and performance 0.28.", "evidence": "Mobile Lighthouse measured LCP 34.3s, TBT 1.62s and performance 0.28; trace on desktop still measured LCP 4.82s and TBT 204ms.", "artifacts": [ "evidence/lighthouse-mobile-summary.json", "evidence/store-trace-summary.json" ], "suggestedFix": "Prioritise LCP content, remove redirects and third-party startup work, and split/defer non-critical JavaScript.", "effort": "large" }, { "id": "F015", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-main-thread", "guidanceId": "break-up-long-tasks", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "Trace recorded six long tasks, longest 186ms and 204ms TBT.", "evidence": "Trace recorded six long tasks, longest 186ms and 204ms TBT; Lighthouse mobile reported 11.2s main-thread work and 6.7s JS execution.", "artifacts": [ "evidence/store-trace-summary.json", "evidence/lighthouse-mobile-summary.json" ], "suggestedFix": "Remove redundant trackers, split long tasks, schedule lower-priority work and lazy-initialise below-fold widgets.", "effort": "large" }, { "id": "F016", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-preload-priority", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "HAR recorded 398 requests/5.88MB, ten parser-inserted VeryHigh stylesheets and missing cache headers.", "evidence": "HAR recorded 398 requests/5.88MB, ten parser-inserted VeryHigh stylesheets and missing cache headers; mobile Lighthouse found 11.79MB and redirect/cache failures.", "artifacts": [ "evidence/store-summary.json", "evidence/store-resource-dom-confirmation.json", "evidence/lighthouse-mobile-summary.json" ], "suggestedFix": "Consolidate critical CSS, defer non-critical styles/scripts, remove redirect chains and apply long-lived caching to versioned assets.", "effort": "large" }, { "id": "F017", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "identify-heavy-scripts", "guidanceCategory": "web-quality", "severity": "high", "confidence": "high", "summary": "Lighthouse estimated 1,728KiB unused JavaScript and 156KiB unused CSS.", "evidence": "Lighthouse estimated 1,728KiB unused JavaScript and 156KiB unused CSS; HAR includes 119 scripts and repeated TikTok/Google/Facebook tags.", "artifacts": [ "evidence/lighthouse-mobile-summary.json", "evidence/store-summary.json" ], "suggestedFix": "Audit tag-manager containers and route bundles, deduplicate trackers, tree-shake and load features conditionally.", "effort": "large" }, { "id": "F018", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Lighthouse failed button-name and ARIA parent checks.", "evidence": "Lighthouse failed button-name and ARIA parent checks; probes found 17 scanned images missing alt and the registration email has no associated label.", "artifacts": [ "evidence/lighthouse-mobile-summary.json", "evidence/store-images.json", "evidence/register-probe.json" ], "suggestedFix": "Give controls accessible names, correct ARIA ownership, explicit form labels and meaningful image alternatives.", "effort": "large" }, { "id": "F019", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-inclusive", "principleCheckId": "sufficient-contrast", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Lighthouse failed color contrast on both storefront and registration..", "evidence": "Lighthouse failed color contrast on both storefront and registration.", "artifacts": [ "evidence/lighthouse-mobile-summary.json", "evidence/lighthouse-register-summary.json" ], "suggestedFix": "Raise text/control contrast to WCAG AA and verify every state, including banners and disabled steps.", "effort": "large" }, { "id": "F020", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-inclusive", "principleCheckId": "structure-and-focus", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Registration has duplicate H1s and no main landmark per Lighthouse.", "evidence": "Registration has duplicate H1s and no main landmark per Lighthouse; storefront begins with modal H1 before page H1 and has ARIA structure failures.", "artifacts": [ "evidence/store-probe.json", "evidence/register-probe.json", "evidence/lighthouse-register-summary.json" ], "suggestedFix": "Use one page H1, semantic main/nav landmarks, correct ARIA ownership and managed modal focus.", "effort": "large" }, { "id": "F021", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-inclusive", "principleCheckId": "legible-text", "guidanceId": "improve-text-layout-and-legibility", "guidanceCategory": "user-experience", "severity": "high", "confidence": "high", "summary": "The 1024px canvas is scaled to 35% on a 360px device, making navigation, product metadata and side filters extremely small..", "evidence": "The 1024px canvas is scaled to 35% on a 360px device, making navigation, product metadata and side filters extremely small.", "artifacts": [ "evidence/store-mobile.png", "evidence/product-mobile.png" ], "suggestedFix": "Adopt device-width reflow and readable fluid type/line lengths rather than shrinking the desktop page.", "effort": "large" }, { "id": "F022", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-inclusive", "principleCheckId": "zoom-reflow-targets-and-media", "guidanceId": "fluid-scaling", "guidanceCategory": "user-experience", "severity": "critical", "confidence": "high", "summary": "Registration sets maximum-scale=1 and Lighthouse fails meta-viewport.", "evidence": "Registration sets maximum-scale=1 and Lighthouse fails meta-viewport; storefront also fails target-size and uses a fixed 1024px viewport.", "artifacts": [ "evidence/register-probe.json", "evidence/lighthouse-register-summary.json", "evidence/lighthouse-mobile-summary.json" ], "suggestedFix": "Remove maximum-scale, use device-width and ensure usable reflow, zoom and touch target sizing.", "effort": "large" }, { "id": "F023", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "follow-best-practices", "principleCheckId": "no-console-errors", "guidanceId": "security", "guidanceCategory": "security", "severity": "medium", "confidence": "high", "summary": "Lighthouse reported browser console errors on both storefront and registration..", "evidence": "Lighthouse reported browser console errors on both storefront and registration.", "artifacts": [ "evidence/lighthouse-mobile-summary.json", "evidence/lighthouse-register-summary.json" ], "suggestedFix": "Eliminate first- and third-party console errors and guard failed integrations without noisy uncaught failures.", "effort": "medium" }, { "id": "F024", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "guidanceId": "optimize-image-priority", "guidanceCategory": "web-quality", "severity": "medium", "confidence": "high", "summary": "Doctype/UTF-8 are valid, but image audit found 66/100 missing dimensions, 36 below-fold images not lazy and six oversized..", "evidence": "Doctype/UTF-8 are valid, but image audit found 66/100 missing dimensions, 36 below-fold images not lazy and six oversized.", "artifacts": [ "evidence/store-images.json", "evidence/store-resource-dom-confirmation.json" ], "suggestedFix": "Add intrinsic dimensions, responsive sources and loading priority/lazy-loading according to viewport relevance.", "effort": "medium" }, { "id": "F025", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "follow-best-practices", "principleCheckId": "browser-platform-hygiene", "guidanceId": "html", "guidanceCategory": "web-quality", "severity": "medium", "confidence": "medium", "summary": "Lighthouse found missing source maps, DevTools inspector issues and three BFCache failure reasons..", "evidence": "Lighthouse found missing source maps, DevTools inspector issues and three BFCache failure reasons.", "artifacts": [ "evidence/lighthouse-mobile-summary.json" ], "suggestedFix": "Resolve inspector/BFCache blockers and publish valid production source maps for large first-party bundles.", "effort": "medium" }, { "id": "F026", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-discoverable", "principleCheckId": "crawlable-and-mobile-friendly", "guidanceId": "search-hidden-content", "guidanceCategory": "user-experience", "severity": "high", "confidence": "high", "summary": "Lighthouse found non-crawlable anchors.", "evidence": "Lighthouse found non-crawlable anchors; 21 storefront links are missing href or use #, and fixed width=1024 defeats mobile-friendly rendering.", "artifacts": [ "evidence/store-probe.json", "evidence/lighthouse-mobile-summary.json" ], "suggestedFix": "Use real href destinations with descriptive text and a device-width responsive viewport.", "effort": "large" }, { "id": "F027", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "guidanceCategory": "security", "severity": "critical", "confidence": "high", "summary": "HTTPS/HSTS and frame protection exist, but 31 cookies were marked insecure, most SameSite=None.", "evidence": "HTTPS/HSTS and frame protection exist, but 31 cookies were marked insecure, most SameSite=None; CSP only declares frame-ancestors and nosniff is absent.", "artifacts": [ "evidence/store-headers.json", "evidence/store-cookies.json" ], "suggestedFix": "Mark all cookies Secure with least-permissive SameSite, add nosniff, and deploy an allowlist CSP beyond frame-ancestors.", "effort": "large" }, { "id": "F028", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-private-and-secure", "principleCheckId": "data-minimisation-and-third-parties", "guidanceId": "privacy", "guidanceCategory": "privacy", "severity": "critical", "confidence": "high", "summary": "Tracker probe found 41 third-party origins and eight known tracker domains.", "evidence": "Tracker probe found 41 third-party origins and eight known tracker domains; HAR attributes 315 requests/3.63MB to third parties on first load.", "artifacts": [ "evidence/store-trackers.json", "evidence/store-summary.json" ], "suggestedFix": "Gate non-essential analytics on consent, consolidate tags, minimise events and remove vendors without demonstrated user value.", "effort": "large" }, { "id": "F029", "pathId": "register", "url": "https://www.dlsite.com/home/regist/user", "principleId": "be-private-and-secure", "principleCheckId": "in-context-permissions-and-modern-auth", "guidanceId": "passkeys", "guidanceCategory": "passkeys", "severity": "medium", "confidence": "medium", "summary": "No permission prompt fired on load, but registration exposes social/email account creation and no passkey/WebAuthn option or credential autocomplete was found..", "evidence": "No permission prompt fired on load, but registration exposes social/email account creation and no passkey/WebAuthn option or credential autocomplete was found.", "artifacts": [ "evidence/register-probe.json" ], "suggestedFix": "Offer passkey registration/sign-in and correct credential autocomplete alongside existing methods.", "effort": "medium" }, { "id": "F030", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "guidanceId": "security", "guidanceCategory": "security", "severity": "high", "confidence": "high", "summary": "Headers lack Referrer-Policy, Permissions-Policy and nosniff.", "evidence": "Headers lack Referrer-Policy, Permissions-Policy and nosniff; CSP is limited to frame-ancestors. HSTS and SAMEORIGIN are present.", "artifacts": [ "evidence/store-headers.json" ], "suggestedFix": "Add strict referrer/permissions policies, nosniff, and a nonce/hash-based script/style CSP with Trusted Types where feasible.", "effort": "large" }, { "id": "F031", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-resilient", "principleCheckId": "progressive-enhancement", "guidanceId": "css", "guidanceCategory": "css", "severity": "high", "confidence": "high", "summary": "Non-JS discoverability is only 35% on storefront.", "evidence": "Non-JS discoverability is only 35% on storefront; crawler screenshot loses main rankings/product content and leaves a large blank content region.", "artifacts": [ "evidence/store-discoverability.json", "evidence/store-discoverability-crawler.png" ], "suggestedFix": "Server-render core listing content and use JavaScript only to enhance sorting, carousels and personalisation.", "effort": "large" }, { "id": "F032", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-resilient", "principleCheckId": "resilient-runtime-behaviour", "guidanceId": "persistent-top-layer-ui", "guidanceCategory": "web-quality", "severity": "medium", "confidence": "medium", "summary": "Blocking locale UI is custom fixed DIV rather than top-layer dialog/popover.", "evidence": "Blocking locale UI is custom fixed DIV rather than top-layer dialog/popover; it obscures every deep link and lacks declarative dismissal semantics.", "artifacts": [ "evidence/store-probe.json", "evidence/product-probe.json" ], "suggestedFix": "Use native top-layer primitives, preserve state and ensure overlays remain recoverable at viewport edges.", "effort": "medium" }, { "id": "F033", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-trustworthy", "principleCheckId": "no-dark-patterns", "guidanceId": "privacy", "guidanceCategory": "privacy", "severity": "high", "confidence": "high", "summary": "Before any visible consent choice on the storefront, 31 cookies and 41 third-party origins are active.", "evidence": "Before any visible consent choice on the storefront, 31 cookies and 41 third-party origins are active; the only first-load prompt is a compulsory language gate.", "artifacts": [ "evidence/store-cookies.json", "evidence/store-trackers.json", "evidence/store-desktop.png" ], "suggestedFix": "Present an honest consent choice before non-essential trackers, default to necessary-only, and preserve rejection.", "effort": "large" }, { "id": "F034", "pathId": "register", "url": "https://www.dlsite.com/home/regist/user", "principleId": "be-trustworthy", "principleCheckId": "humane-error-handling", "guidanceId": "validate-input-after-interaction", "guidanceCategory": "forms", "severity": "medium", "confidence": "high", "summary": "After entering an invalid email and blurring, browser validity fails but no visible error, aria-invalid or described-by error is added..", "evidence": "After entering an invalid email and blurring, browser validity fails but no visible error, aria-invalid or described-by error is added.", "artifacts": [ "evidence/register-invalid-probe.json" ], "suggestedFix": "After interaction, show a concise visible error, set aria-invalid and connect it with aria-describedby/live announcement.", "effort": "medium" }, { "id": "F035", "pathId": "register", "url": "https://www.dlsite.com/home/regist/user", "principleId": "be-trustworthy", "principleCheckId": "trustworthy-input-assistance", "guidanceId": "autofill-sign-up-form", "guidanceCategory": "forms", "severity": "medium", "confidence": "high", "summary": "Registration email has no label and no autocomplete token, preventing reliable autofill assistance..", "evidence": "Registration email has no label and no autocomplete token, preventing reliable autofill assistance.", "artifacts": [ "evidence/register-probe.json" ], "suggestedFix": "Add a persistent label and autocomplete=email/username as appropriate; use complete signup autocomplete tokens.", "effort": "medium" }, { "id": "F036", "pathId": "product", "url": "https://www.dlsite.com/home/work/=/product_id/RJ001016.html?locale=ja_JP", "principleId": "be-trustworthy", "principleCheckId": "safe-commercial-and-account-flows", "guidanceId": "autofill-payment-form", "guidanceCategory": "web-quality", "severity": "medium", "confidence": "medium", "summary": "Pricing and purchase actions are visible, but a first-time product deep link is blocked by locale selection and registration is partly hidden by consent UI..", "evidence": "Pricing and purchase actions are visible, but a first-time product deep link is blocked by locale selection and registration is partly hidden by consent UI.", "artifacts": [ "evidence/product-desktop.png", "evidence/register-mobile.png" ], "suggestedFix": "Keep price/commitment visible and remove obstructive gates from checkout/account continuity; add autofill/passkeys.", "effort": "medium" }, { "id": "F037", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "deliver-optimized-decorative-images", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "Image audit found six oversized images, 40 without srcset, seven legacy-format images and 36 below-fold images loaded eagerly..", "evidence": "Image audit found six oversized images, 40 without srcset, seven legacy-format images and 36 below-fold images loaded eagerly.", "artifacts": [ "evidence/store-images.json" ], "suggestedFix": "Serve responsive AVIF/WebP sources at display size and lazy-load non-critical images.", "effort": "medium" }, { "id": "F038", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-sustainable", "principleCheckId": "no-wasteful-work", "guidanceId": "deprioritize-background-fetches", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "First load makes 398 requests including 73 fetch/XHR and repeated analytics scripts.", "evidence": "First load makes 398 requests including 73 fetch/XHR and repeated analytics scripts; 119 scripts contribute to long tasks and unused code.", "artifacts": [ "evidence/store-summary.json", "evidence/store-trace-summary.json" ], "suggestedFix": "Delay, batch or remove background analytics and initialise only the modules needed for visible content.", "effort": "large" }, { "id": "F039", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-sustainable", "principleCheckId": "third-party-and-media-budget", "guidanceId": "efficient-background-processing", "guidanceCategory": "web-quality", "severity": "high", "confidence": "high", "summary": "Third parties consume 3.63MB across 315 requests, including 1.57MB Google Tag Manager and multiple ad/analytics vendors..", "evidence": "Third parties consume 3.63MB across 315 requests, including 1.57MB Google Tag Manager and multiple ad/analytics vendors.", "artifacts": [ "evidence/store-summary.json", "evidence/store-trackers.json" ], "suggestedFix": "Set a third-party byte/request budget and load consented analytics after core content, with aggressive vendor pruning.", "effort": "large" }, { "id": "F040", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-agent-ready", "principleCheckId": "structured-agent-capabilities", "guidanceId": "agentic-javascript-tools", "guidanceCategory": "webmcp", "severity": "low", "confidence": "medium", "summary": "This commerce site is a plausible agentic purchasing/search surface, but Lighthouse agentic score is 0.32 and no WebMCP tools are registered..", "evidence": "This commerce site is a plausible agentic purchasing/search surface, but Lighthouse agentic score is 0.32 and no WebMCP tools are registered.", "artifacts": [ "evidence/lighthouse-mobile-summary.json" ], "suggestedFix": "Expose safe, confirmable catalogue search/cart capabilities through structured agent tools and accessible forms.", "effort": "small" }, { "id": "F041", "pathId": "storefront", "url": "https://www.dlsite.com/home/?locale=ja_JP", "principleId": "be-memory-efficient", "principleCheckId": "bounded-footprint", "guidanceId": "defer-rendering-heavy-content", "guidanceCategory": "web-quality", "severity": "medium", "confidence": "medium", "summary": "Baseline heap summary contains 1.57M heap nodes and 99.5MB self size for a catalogue landing page, alongside 6,650 DOM elements and 119 scripts..", "evidence": "Baseline heap summary contains 1.57M heap nodes and 99.5MB self size for a catalogue landing page, alongside 6,650 DOM elements and 119 scripts.", "artifacts": [ "evidence/store-heap-baseline.json", "evidence/store-probe.json", "evidence/store-summary.json" ], "suggestedFix": "Reduce DOM/card population, unload hidden widgets and remove duplicate analytics/module allocations.", "effort": "medium" } ], "taskList": [ { "id": "T1", "title": "Rebuild the mobile experience around device-width reflow and accessible zoom", "priority": 1, "findingIds": [ "F010", "F012", "F021", "F022" ], "guidanceId": "fluid-scaling", "status": "open" }, { "id": "T2", "title": "Remove first-load tracking until explicit consent and secure all cookies", "priority": 2, "findingIds": [ "F027", "F028", "F033", "F039" ], "guidanceId": "privacy", "status": "open" }, { "id": "T3", "title": "Cut startup JavaScript, trackers, redirects and unused bundles to restore Core Web Vitals", "priority": 3, "findingIds": [ "F014", "F015", "F016", "F017", "F038" ], "guidanceId": "performance", "status": "open" }, { "id": "T4", "title": "Replace blocking custom overlays with semantic, non-obscuring dialogs/popovers", "priority": 4, "findingIds": [ "F007", "F008", "F013", "F032" ], "guidanceId": "light-dismiss-a-dialog", "status": "open" }, { "id": "T5", "title": "Repair accessible names, labels, contrast, landmarks and validation feedback", "priority": 5, "findingIds": [ "F018", "F019", "F020", "F034", "F035" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T6", "title": "Add system dark mode and reduced-motion treatment", "priority": 6, "findingIds": [ "F001", "F002" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "T7", "title": "Optimise and size responsive images", "priority": 7, "findingIds": [ "F024", "F037" ], "guidanceId": "optimize-image-priority", "status": "open" }, { "id": "T8", "title": "Server-render more catalogue content and expose crawlable links", "priority": 8, "findingIds": [ "F026", "F031" ], "guidanceId": "html", "status": "open" }, { "id": "T9", "title": "Harden browser policies and clean console/inspector/BFCache failures", "priority": 9, "findingIds": [ "F023", "F025", "F030" ], "guidanceId": "security", "status": "open" }, { "id": "T10", "title": "Reduce baseline DOM/heap footprint and modernise navigation interactions", "priority": 10, "findingIds": [ "F003", "F004", "F011", "F041" ], "guidanceId": "defer-rendering-heavy-content", "status": "open" } ], "budget": { "wallClockSeconds": 720, "pathCount": 5, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-22T01-27-24-604Z" }