{ "url": "https://www.subito.it", "auditedAt": "2026-07-23T07:47:59.595Z", "mode": "report", "status": "completed", "statusDetail": "Complete atomic audit of 58 checks across five representative public paths. Authenticated messaging, checkout/payment completion and account settings were not covered because they require a user account; the audited primary public journey was search/listing/detail plus the seller entry.", "page": { "appType": "hybrid", "framework": "Next.js / React", "notes": "Server-rendered marketplace with client hydration, separate account domains, manifest, advertising and analytics integrations." }, "evidenceUsed": [ "screenshot", "dom", "layout-metrics", "evaluate-probe", "trace", "har", "discoverability", "images", "headers", "cookies", "trackers", "secrets", "heap-summary", "Lighthouse", "Modern Web Guidance live feed" ], "guidanceConsulted": [ "dark-mode", "component-specific-light-dark-theme", "accessibility", "adapt-scrollbar-to-contrast-preferences", "same-document-transitions", "cross-document-transitions", "group-element-transitions", "faster-spa-view-transitions", "scrollytelling", "parallax-scroll-effects", "scroll-entry-exit-effects", "carousel-slide-effects", "physics-based-easing", "individual-transform-properties", "animate-element-entry-exit", "animate-to-from-top-layer", "animate-to-intrinsic-sizes", "dynamic-sibling-animations", "interactive-content-reveal", "pull-to-reveal", "swipe-to-remove", "shrinking-header-on-scroll", "scroll-progress-indicator", "scroll-position-aware-elements", "scroll-snap-realtime-feedback", "scroll-snap-state-sync", "scroll-target-on-load", "soft-edge-content-fade", "scrollability-affordance-hints", "anchor-positioning-tab-underline", "position-aware-tooltips", "interest-triggered-tooltips", "interest-triggered-action-previews", "directional-navigation-transitions", "carousel-snap-highlights", "navigation-drawer", "stack-drill-down", "persistent-app-tours", "persistent-toast-notifications", "light-dismiss-a-dialog", "platform-controls-dismiss-dialog", "declarative-dialog-popover-control", "animated-select-picker", "branded-select-styling", "brand-consistent-forms", "custom-select-picker-layouts", "rich-media-picker", "complex-shapes", "shaped-cutouts", "overflow-clipping-control", "visually-texture-content", "apply-webgl-shaders", "interactive-content-in-3d-scenes", "highlight-text-ranges", "prevent-text-wrapping", "customize-scrollbar-color-and-thickness", "export-html-media-from-canvas", "fluid-scaling", "calculate-with-intrinsic-sizes", "css-layout", "size-aware-styling", "content-based-styling", "child-state-based-styling", "design-token-reactivity", "dynamic-sibling-styling", "form-fields-automatically-fit-contents", "improve-text-layout-and-legibility", "forms", "accessible-error-announcement", "required-field-feedback", "validate-input-after-interaction", "identify-inp-causes", "schedule-tasks-by-priority", "optimize-preload-priority", "improve-next-page-load-performance", "interactions-in-complex-layouts", "performance", "visually-stable-font-fallbacks", "break-up-long-tasks", "identify-heavy-scripts", "optimize-script-priority", "defer-rendering-heavy-content", "defer-work-until-scroll-ends", "optimize-image-priority", "conditional-async-dependencies", "expose-canvas-content-to-browser-features", "move-dom-element-without-losing-state", "precise-text-alignment", "visually-stable-mixed-fonts", "css", "html", "reduce-style-repetition", "security", "privacy", "batch-analytics-events", "full-session-analytics", "calculate-total-foreground-time", "passkeys", "passkey-registration", "passkey-authentication", "passkey-reauthentication", "passkey-conditional-create", "passkey-management", "flicker-free-client-side-ab-testing", "consistent-cross-document-transitions", "stabilize-reactive-state", "resilient-context-menus-and-nested-dropdowns", "persistent-top-layer-ui", "detect-initial-visibility-state", "sequence-distributed-events", "translator", "language-detection", "support-global-calendar-systems", "capture-location-agnostic-data", "format-human-readable-durations", "manage-recurring-intervals", "calculate-event-differentials", "coordinate-global-events", "model-partial-time-concepts", "search-hidden-content", "select-menu-interaction", "style-parent-with-has", "autofill-address-form", "autofill-payment-form", "autofill-sign-in-form", "autofill-sign-up-form", "autofill-highlight-inputs", "deliver-optimized-decorative-images", "resolution-optimized-pseudo-elements", "deprioritize-background-fetches", "efficient-background-processing", "webmcp", "agentic-forms", "agentic-javascript-tools", "language-model", "summarizer" ], "artifacts": [ { "type": "dom", "path": "evidence/detail-dom.json", "caption": "detail dom", "findingIds": [] }, { "type": "layout", "path": "evidence/detail-layout.json", "caption": "detail layout", "findingIds": [] }, { "type": "screenshot", "path": "evidence/detail-mobile.png", "caption": "detail mobile", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "dom", "path": "evidence/error-404-dom.json", "caption": "error 404 dom", "findingIds": [] }, { "type": "screenshot", "path": "evidence/error-404-mobile.png", "caption": "error 404 mobile", "condition": "viewport: 360x800", "findingIds": [ "F-07", "F-26" ] }, { "type": "other", "path": "evidence/focus-probe.json", "caption": "focus probe", "findingIds": [] }, { "type": "heap", "path": "evidence/heap-baseline.json", "caption": "heap baseline", "findingIds": [ "F-33" ] }, { "type": "heap", "path": "evidence/heap-post-scroll.json", "caption": "heap post scroll", "findingIds": [ "F-32" ] }, { "type": "other", "path": "evidence/home-cookies.json", "caption": "home cookies", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "home dark", "condition": "prefers-color-scheme: dark", "findingIds": [ "F-01" ] }, { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "home desktop", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-discoverability-crawler.png", "caption": "home discoverability crawler", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-discoverability-rendered.png", "caption": "home discoverability rendered", "findingIds": [] }, { "type": "discoverability", "path": "evidence/home-discoverability.json", "caption": "home discoverability", "findingIds": [] }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "home dom", "findingIds": [] }, { "type": "other", "path": "evidence/home-headers.json", "caption": "home headers", "findingIds": [ "F-21", "F-24" ] }, { "type": "screenshot", "path": "evidence/home-high-contrast.png", "caption": "home high contrast", "condition": "forced-colors/high contrast", "findingIds": [] }, { "type": "other", "path": "evidence/home-images.json", "caption": "home images", "findingIds": [ "F-18", "F-29" ] }, { "type": "layout", "path": "evidence/home-layout-mobile.json", "caption": "home layout mobile", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "home mobile", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "other", "path": "evidence/home-recon.json", "caption": "home recon", "findingIds": [ "F-28" ] }, { "type": "other", "path": "evidence/home-secrets.json", "caption": "home secrets", "findingIds": [] }, { "type": "har-summary", "path": "evidence/home-summary.json", "caption": "home summary", "findingIds": [ "F-11", "F-30", "F-31" ] }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "home trace summary", "findingIds": [] }, { "type": "trace", "path": "evidence/home-trace.json", "caption": "home trace", "findingIds": [] }, { "type": "other", "path": "evidence/home-trackers.json", "caption": "home trackers", "findingIds": [ "F-22" ] }, { "type": "har", "path": "evidence/home.har", "caption": "home", "findingIds": [] }, { "type": "lighthouse", "path": "evidence/lighthouse-home.json", "caption": "lighthouse home", "findingIds": [ "F-02", "F-05", "F-08", "F-09", "F-10", "F-12", "F-13", "F-14", "F-15", "F-16", "F-17", "F-19" ] }, { "type": "dom", "path": "evidence/listing-dom.json", "caption": "listing dom", "findingIds": [] }, { "type": "layout", "path": "evidence/listing-layout.json", "caption": "listing layout", "findingIds": [] }, { "type": "screenshot", "path": "evidence/listing-mobile.png", "caption": "listing mobile", "condition": "viewport: 360x800", "findingIds": [ "F-03", "F-04" ] }, { "type": "other", "path": "evidence/platform-probes.json", "caption": "platform probes", "findingIds": [ "F-06", "F-27" ] }, { "type": "other", "path": "evidence/reduced-motion.json", "caption": "reduced motion", "findingIds": [] }, { "type": "other", "path": "evidence/runtime-hygiene.json", "caption": "runtime hygiene", "findingIds": [ "F-23" ] }, { "type": "dom", "path": "evidence/sell-dom.json", "caption": "sell dom", "findingIds": [] }, { "type": "layout", "path": "evidence/sell-layout.json", "caption": "sell layout", "findingIds": [] }, { "type": "screenshot", "path": "evidence/sell-mobile.png", "caption": "sell mobile", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "other", "path": "evidence/sell-probe.json", "caption": "sell probe", "findingIds": [] }, { "type": "other", "path": "evidence/site-files.json", "caption": "site files", "findingIds": [ "F-20", "F-25" ] } ], "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 review using visual screenshot inspection", "evidence": "Screenshot comparison found the dark capture byte-identical to the light capture; the UI remains white under prefers-color-scheme: dark.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dark.png" ], "findingIds": [ "F-01" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "Under prefers-reduced-motion: reduce, the probe found zero active animations and three reduced-motion CSS rules.", "pathIds": [ "home" ], "artifacts": [ "evidence/reduced-motion.json" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "issues", "confidence": "high", "method": "Active review using Lighthouse", "evidence": "Lighthouse failed color contrast and the high-contrast capture was used to inspect control visibility.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F-02" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "pass", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "Rendered HTML includes the cross-document @view-transition initialization and pageswap/pagereveal handling.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dom.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "pass", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "DOM/CSS probes found no scroll-linked effects or animation-timeline use on the representative pages, so no JS scroll-animation anti-pattern was present.", "pathIds": [ "home" ], "artifacts": [ "evidence/platform-probes.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "pass", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "Mobile walkthroughs showed native scrolling and ordinary links/buttons; no custom pointer-driven gesture surface was present.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile.png" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "issues", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "Long listing/detail pages retain static navigation chrome; the CSS probe found no scroll timeline/state treatment to guide long-page position.", "pathIds": [ "home" ], "artifacts": [ "evidence/listing-mobile.png" ], "findingIds": [ "F-03" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "pass", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "The listing account callout remained attached within the viewport without clipping at 360px.", "pathIds": [ "home" ], "artifacts": [ "evidence/listing-mobile.png" ] }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "pass", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "Listing and detail views provide breadcrumbs and a prominent “Torna alla ricerca” return action.", "pathIds": [ "home" ], "artifacts": [ "evidence/detail-mobile.png" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "issues", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "The listing mobile capture shows an unsolicited “Accedi ora” callout covering search controls, alongside a persistent promotional banner.", "pathIds": [ "home" ], "artifacts": [ "evidence/listing-mobile.png" ], "findingIds": [ "F-04" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "issues", "confidence": "high", "method": "Active review using Lighthouse", "evidence": "DOM found a SECTION with role=dialog; Lighthouse reports aria-dialog-name failure, indicating custom dialog semantics without an accessible name.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F-05" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "pass", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "Mobile home, listing, detail and sell captures devote the majority of viewport space to search, listings, item imagery or the selling task.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile.png" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "pass", "confidence": "high", "method": "Active review using mobile layout metrics", "evidence": "Layout at 360x800 reported scrollWidth=clientWidth=360 and zero horizontal overflow on all four representative templates.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-layout-mobile.json" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "pass", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "CSS probe counted 13 container-query rules and all representative templates adapted cleanly at 360px.", "pathIds": [ "home" ], "artifacts": [ "evidence/platform-probes.json" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "issues", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "Lighthouse failed target-size; the probe counted 177 rendered interactive boxes below 24px in at least one dimension, while keyboard outline was visible.", "pathIds": [ "home" ], "artifacts": [ "evidence/platform-probes.json" ], "findingIds": [ "F-06" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "First-view captures clearly expose Cerca on home/listing, item identity and price on detail, and “Inserisci il tuo annuncio” on sell.", "pathIds": [ "error" ], "artifacts": [ "evidence/sell-mobile.png" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "pass", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "The public browse journey was completed from home to listing to a live item detail with a clear return path; the sell entry surface also loaded.", "pathIds": [ "error" ], "artifacts": [ "evidence/detail-mobile.png" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "issues", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "A deliberately unknown route rendered “Servizio non disponibile… Torna tra poco” but provided no home, back, retry, search, or support action.", "pathIds": [ "error" ], "artifacts": [ "evidence/error-404-mobile.png" ], "findingIds": [ "F-07" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Active review using Lighthouse", "evidence": "Lighthouse performance was 0.56 with LCP 12.2s, CLS 0.119 and TBT 200ms; a warm raw-CDP trace was faster (LCP 1.69s), showing condition sensitivity but not negating the throttled failure.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F-08" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "issues", "confidence": "high", "method": "Active review using Lighthouse", "evidence": "Lighthouse measured CLS 0.119, found three layout shifts, and flagged unsized images; the image audit found 39 images without explicit dimensions.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F-09" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "issues", "confidence": "high", "method": "Active review using Lighthouse", "evidence": "Lighthouse measured 3.0s main-thread work and 1.7s JavaScript execution, despite the warm trace observing no long tasks.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F-10" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "HAR recorded 120 requests and 3.24MB, nine parser-inserted VeryHigh-priority stylesheets; Lighthouse estimated 1.18s render-blocking savings.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json" ], "findingIds": [ "F-11" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Active review using Lighthouse", "evidence": "Lighthouse estimated 657KiB unused JavaScript and 38KiB unused CSS; HAR recorded 43 script requests transferring 1.85MB.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F-12" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Active review using Lighthouse", "evidence": "Lighthouse failed aria-dialog-name and link-name; the image audit also reported 23 images without alt attributes (some decorative).", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F-13" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "issues", "confidence": "high", "method": "Active review using Lighthouse", "evidence": "Lighthouse’s automated WCAG contrast audit failed on the home template.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F-14" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "issues", "confidence": "high", "method": "Active review using Lighthouse", "evidence": "Lighthouse failed heading-order and agent accessibility-tree checks; the homepage DOM had no h1, though a focused link had a visible auto outline.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F-15" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "pass", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "Mobile screenshots show readable, unclipped Italian headings, labels, prices and body text across all four templates.", "pathIds": [ "home" ], "artifacts": [ "evidence/detail-mobile.png" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "issues", "confidence": "high", "method": "Active review using Lighthouse", "evidence": "Viewport permits scaling and 360px reflow has no overflow, but Lighthouse failed touch-target sizing. No essential video/audio was present.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F-16" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "issues", "confidence": "high", "method": "Active review using Lighthouse", "evidence": "Lighthouse recorded browser console errors during its full load, while the later three-second page probe observed none.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F-17" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "issues", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "Document has HTML doctype and UTF-8, but Lighthouse flagged unsized images and the image audit found 39 missing dimensions plus 17 oversized assets.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-images.json" ], "findingIds": [ "F-18" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "pass", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "Lighthouse best-practices scored 0.96; no permission request fired on load and the runtime probe found no immediate uncaught error.", "pathIds": [ "home" ], "artifacts": [ "evidence/runtime-hygiene.json" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "Home, listing, detail and sell templates have distinct descriptive titles and meta descriptions.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-recon.json" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "issues", "confidence": "high", "method": "Active review using Lighthouse", "evidence": "Viewport and robots are present, but Lighthouse failed crawlable-anchors; recon found multiple category links resolving only to the homepage “#”.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F-19" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "issues", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "Home/listing/detail have sound indexing signals, but the sell template lacked a canonical and /sitemap.xml returned 503 during the audit.", "pathIds": [ "home" ], "artifacts": [ "evidence/site-files.json" ], "findingIds": [ "F-20" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "pass", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "Home/listing/detail include JSON-LD plus Open Graph metadata; the item detail contained four JSON-LD blocks matching the visible listing.", "pathIds": [ "home" ], "artifacts": [ "evidence/detail-dom.json" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "HTTPS, HSTS, nosniff and SAMEORIGIN are present, but CSP is absent and didomi_dcs is not Secure; two cookies use SameSite=None.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json" ], "findingIds": [ "F-21" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "issues", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "Tracker capture found 20 third-party origins and seven known tracker domains; HAR attributed 83 requests and 2.51MB to non-main origins.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-trackers.json" ], "findingIds": [ "F-22" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "issues", "confidence": "low", "method": "Active review using DOM/evaluate/network probe", "evidence": "No permission request fired on load, but recon of the visible authentication entry found no evidence of passkey/WebAuthn support for this account-based marketplace.", "pathIds": [ "home" ], "artifacts": [ "evidence/runtime-hygiene.json" ], "findingIds": [ "F-23" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "HSTS, X-Frame-Options and Referrer-Policy are present, but CSP and Permissions-Policy are absent; cookies include SameSite=None and one non-Secure cookie.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json" ], "findingIds": [ "F-24" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "pass", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "Discoverability fetch returned 200 with 74% rendered-word coverage in raw HTML; title and description survive without JavaScript and it is not a JS shell.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-discoverability.json" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "pass", "confidence": "high", "method": "Active review using mobile layout metrics", "evidence": "Menus/callouts and long templates stayed within the 360px viewport; layouts had zero horizontal overflow and no broken shell.", "pathIds": [ "home" ], "artifacts": [ "evidence/listing-layout.json" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "issues", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "A manifest exists but uses display:\"browser\" and prefer_related_applications:true; runtime probe found no controlling service worker.", "pathIds": [ "home" ], "artifacts": [ "evidence/site-files.json" ], "findingIds": [ "F-25" ] }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "issues", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "Unknown-route test produced a branded error message but no actionable retry, home, search, back, or support control.", "pathIds": [ "home" ], "artifacts": [ "evidence/error-404-mobile.png" ], "findingIds": [ "F-26" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "issues", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "HTML correctly declares lang=it and dir=ltr, but CSS probe counted 189 physical left/right-style rules, limiting writing-mode resilience.", "pathIds": [ "home" ], "artifacts": [ "evidence/platform-probes.json" ], "findingIds": [ "F-27" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "pass", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "The Italian detail template renders “75.000 €” and Italian relative/date text consistent with the declared it locale.", "pathIds": [ "home" ], "artifacts": [ "evidence/detail-mobile.png" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "pass", "confidence": "low", "method": "Active review using visual screenshot inspection", "evidence": "Visible listing timestamps are expressed in local Italian terms and no cross-time-zone scheduling surface appeared in the representative paths.", "pathIds": [ "home" ], "artifacts": [ "evidence/detail-mobile.png" ] }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "pass", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "Public search, listing, item price and sell entry use direct labels; no forced continuity, disguised ad action, or confirmshaming was observed in the exercised paths.", "pathIds": [ "home" ], "artifacts": [ "evidence/detail-mobile.png" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "pass", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "The sell entry asks for an item name or category with explanatory copy before deeper validation; no premature invalid state appeared.", "pathIds": [ "home" ], "artifacts": [ "evidence/sell-mobile.png" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "issues", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "Search and geo inputs, plus the sell item-name input, explicitly use autocomplete=\"off\", preventing useful browser assistance.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-recon.json" ], "findingIds": [ "F-28" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "pass", "confidence": "high", "method": "Active review using visual screenshot inspection", "evidence": "The item detail exposes the full €75,000 price before contact and account actions are explicitly labelled; no subscription commitment was encountered.", "pathIds": [ "home" ], "artifacts": [ "evidence/detail-mobile.png" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "Image audit found 17 oversized, 20 without srcset, 16 legacy-format and 23 below-fold non-lazy images.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-images.json" ], "findingIds": [ "F-29" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "issues", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "HAR loaded 120 resources and 43 scripts on the landing page, including ad/analytics work; 83 requests were outside the main origin.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json" ], "findingIds": [ "F-30" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "2.51MB of 3.24MB transferred from non-main origins; GTM, consent and ad scripts were among the largest payloads.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json" ], "findingIds": [ "F-31" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "not-applicable", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "The emerging agent-capability check is not applicable: no declared agent-facing product intent or WebMCP surface was in scope.", "artifacts": [ "evidence/home-dom.json" ], "reason": "The emerging agent-capability check is not applicable: no declared agent-facing product intent or WebMCP surface was in scope." }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "Active review using DOM/evaluate/network probe", "evidence": "The emerging on-device-inference check is not applicable: the marketplace paths expose no summarisation or language-model task.", "artifacts": [ "evidence/home-dom.json" ], "reason": "The emerging on-device-inference check is not applicable: the marketplace paths expose no summarisation or language-model task." }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "issues", "confidence": "high", "method": "Active review using heap snapshots", "evidence": "Heap after ten bottom/top scroll cycles was 39.5MB/714k nodes versus 26.4MB/438k baseline. Separate browser sessions and dynamic content reduce confidence, but the 49.8% retained-size signal warrants investigation.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-post-scroll.json" ], "findingIds": [ "F-32" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "issues", "confidence": "high", "method": "Active review using heap snapshots", "evidence": "Baseline heap contained 437,993 nodes and 26.4MB self size before interaction, high for a landing/listing surface and consistent with the heavy script footprint.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.json" ], "findingIds": [ "F-33" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "high", "method": "Active review using heap snapshots", "evidence": "Neither heap summary exposed Detached* constructors among retained constructor summaries; no direct detached-DOM signal was found, though timer instrumentation was limited.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-post-scroll.json" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "F-01", "F-02" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "pass" }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "issues", "findingIds": [ "F-03" ] }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "F-04", "F-05" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F-06" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "issues", "findingIds": [ "F-07" ] }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F-08", "F-09", "F-10", "F-11", "F-12" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F-13", "F-14", "F-15", "F-16" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "F-17", "F-18" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "F-19", "F-20" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F-21", "F-22", "F-23", "F-24" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "issues", "findingIds": [ "F-25", "F-26" ] }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "issues", "findingIds": [ "F-27" ] }, { "principleId": "be-trustworthy", "expectation": "default", "status": "issues", "findingIds": [ "F-28" ] }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F-29", "F-30", "F-31" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "not-applicable", "reason": "No agent-facing intent or applicable inference task was present in the audited public marketplace paths." }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "issues", "findingIds": [ "F-32", "F-33" ] } ], "paths": [ { "id": "home", "description": "Homepage and primary search entry; represents discovery, navigation and landing-page behavior.", "url": "https://www.subito.it/", "conditions": [ "desktop", "viewport: 360x800", "prefers-color-scheme: dark", "prefers-reduced-motion: reduce", "forced-colors/high contrast", "keyboard focus", "no-JS crawler" ], "result": "issues" }, { "id": "listing", "description": "National used-item results; represents listing/filter/search-result template.", "url": "https://www.subito.it/annunci-italia/vendita/usato", "conditions": [ "viewport: 360x800" ], "result": "issues" }, { "id": "detail", "description": "Live boat advert; represents item detail, price, seller/contact and rich metadata.", "url": "https://www.subito.it/nautica/barca-a-vela-pronta-alla-navigazione-roma-650170860.htm", "conditions": [ "viewport: 360x800" ], "result": "issues" }, { "id": "sell", "description": "Sell landing and item-name/category entry; represents the seller task start.", "url": "https://www.subito.it/vendere/", "conditions": [ "viewport: 360x800" ], "result": "issues" }, { "id": "error", "description": "Unknown URL; represents HTTP/error recovery.", "url": "https://www.subito.it/this-route-should-not-exist-web-uplift", "conditions": [ "viewport: 360x800" ], "result": "issues" } ], "findings": [ { "id": "F-01", "pathId": "home", "url": "https://www.subito.it/", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "user-experience", "severity": "low", "confidence": "high", "summary": "Honours prefers-color-scheme: a usable dark mode exists and is driven by the user's preference (color-scheme / prefers-color-scheme / light-dark()), not hard-coded light only.", "evidence": "Screenshot comparison found the dark capture byte-identical to the light capture; the UI remains white under prefers-color-scheme: dark.", "artifacts": [ "evidence/home-dark.png" ], "suggestedFix": "Address this check using Modern Web Guidance “dark-mode”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-02", "pathId": "home", "url": "https://www.subito.it/", "principleId": "respect-user-preferences", "principleCheckId": "respects-contrast", "guidanceId": "adapt-scrollbar-to-contrast-preferences", "guidanceCategory": "user-experience", "severity": "low", "confidence": "high", "summary": "Honours prefers-contrast / forced-colors: controls, text and scrollbars remain visible under high-contrast preferences.", "evidence": "Lighthouse failed color contrast and the high-contrast capture was used to inspect control visibility.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Address this check using Modern Web Guidance “adapt-scrollbar-to-contrast-preferences”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-03", "pathId": "listing", "url": "https://www.subito.it/annunci-italia/vendita/usato", "principleId": "provide-guided-navigation", "principleCheckId": "scroll-state-aware-chrome", "guidanceId": "shrinking-header-on-scroll", "guidanceCategory": "user-experience", "severity": "low", "confidence": "high", "summary": "Sticky/affixed UI reacts to scroll state and position (e.g. the new scroll-state(scrolled) query, shrinking headers, progress indicators) so chrome responds to position instead of static or JS-driven toggling.", "evidence": "Long listing/detail pages retain static navigation chrome; the CSS probe found no scroll timeline/state treatment to guide long-page position.", "artifacts": [ "evidence/listing-mobile.png" ], "suggestedFix": "Address this check using Modern Web Guidance “shrinking-header-on-scroll”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-04", "pathId": "listing", "url": "https://www.subito.it/annunci-italia/vendita/usato", "principleId": "maximize-content-reduce-noise", "principleCheckId": "no-intrusive-interruptions", "guidanceId": "light-dismiss-a-dialog", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "No intrusive pop-ups, interstitials or banners that obscure content on load; overlays are dismissible and content-first.", "evidence": "The listing mobile capture shows an unsolicited “Accedi ora” callout covering search controls, alongside a persistent promotional banner.", "artifacts": [ "evidence/listing-mobile.png" ], "suggestedFix": "Address this check using Modern Web Guidance “light-dismiss-a-dialog”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-05", "pathId": "home", "url": "https://www.subito.it/", "principleId": "maximize-content-reduce-noise", "principleCheckId": "semantic-dismissible-primitives", "guidanceId": "declarative-dialog-popover-control", "guidanceCategory": "user-experience", "severity": "low", "confidence": "high", "summary": "Overlays and rich controls use the right primitive: popover (with declarative light-dismiss) for transient UI, dialog for modal flows, details for disclosure, native-but-branded selects and pickers, rather than ad-hoc divs.", "evidence": "DOM found a SECTION with role=dialog; Lighthouse reports aria-dialog-name failure, indicating custom dialog semantics without an accessible name.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Address this check using Modern Web Guidance “declarative-dialog-popover-control”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-06", "pathId": "home", "url": "https://www.subito.it/", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "high", "summary": "Touch targets are adequately sized and hover-only affordances have a non-hover fallback, and keyboard focus is visible, so the UI works for touch, pointer and keyboard alike.", "evidence": "Lighthouse failed target-size; the probe counted 177 rendered interactive boxes below 24px in at least one dimension, while keyboard outline was visible.", "artifacts": [ "evidence/platform-probes.json" ], "suggestedFix": "Address this check using Modern Web Guidance “accessibility”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-07", "pathId": "error", "url": "https://www.subito.it/this-route-should-not-exist-web-uplift", "principleId": "support-core-task-success", "principleCheckId": "clear-system-state-and-recovery", "guidanceId": "accessible-error-announcement", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "high", "summary": "Loading, empty, success, error, offline, and partial-completion states are visible and actionable; users can retry, undo, cancel, go back, or continue without losing context.", "evidence": "A deliberately unknown route rendered “Servizio non disponibile… Torna tra poco” but provided no home, back, retry, search, or support action.", "artifacts": [ "evidence/error-404-mobile.png" ], "suggestedFix": "Address this check using Modern Web Guidance “accessible-error-announcement”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-08", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "identify-inp-causes", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "Core Web Vitals are in the good range: LCP is fast, interaction latency (INP) is low, and CLS is minimal; work is prioritised and deferred sensibly.", "evidence": "Lighthouse performance was 0.56 with LCP 12.2s, CLS 0.119 and TBT 200ms; a warm raw-CDP trace was faster (LCP 1.69s), showing condition sensitivity but not negating the throttled failure.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Address this check using Modern Web Guidance “identify-inp-causes”; verify under the same audited condition and retain before/after evidence.", "effort": "large" }, { "id": "F-09", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-fast-and-stable", "principleCheckId": "visual-stability", "guidanceId": "visually-stable-font-fallbacks", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "No cumulative layout shift from late content (images, banners, fonts) that arrives without reserved space.", "evidence": "Lighthouse measured CLS 0.119, found three layout shifts, and flagged unsized images; the image audit found 39 images without explicit dimensions.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Address this check using Modern Web Guidance “visually-stable-font-fallbacks”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-10", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-main-thread", "guidanceId": "break-up-long-tasks", "guidanceCategory": "performance", "severity": "medium", "confidence": "high", "summary": "The main thread is not blocked by long tasks or heavy scripting; work is deferred, chunked, prioritised, or moved off-thread.", "evidence": "Lighthouse measured 3.0s main-thread work and 1.7s JavaScript execution, despite the warm trace observing no long tasks.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Address this check using Modern Web Guidance “break-up-long-tasks”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-11", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-image-priority", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "Critical resources are delivered efficiently: cache headers are useful, render-blocking chains are short, fonts do not block or shift text, HTTP delivery is modern, and network dependency trees do not delay the main content.", "evidence": "HAR recorded 120 requests and 3.24MB, nine parser-inserted VeryHigh-priority stylesheets; Lighthouse estimated 1.18s render-blocking savings.", "artifacts": [ "evidence/home-summary.json" ], "suggestedFix": "Address this check using Modern Web Guidance “optimize-image-priority”; verify under the same audited condition and retain before/after evidence.", "effort": "large" }, { "id": "F-12", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "identify-heavy-scripts", "guidanceCategory": "performance", "severity": "medium", "confidence": "high", "summary": "The page does not ship large unused or duplicated JavaScript/CSS, avoidable legacy bundles, or third-party code that dominates the load without user value.", "evidence": "Lighthouse estimated 657KiB unused JavaScript and 38KiB unused CSS; HAR recorded 43 script requests transferring 1.85MB.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Address this check using Modern Web Guidance “identify-heavy-scripts”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-13", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Interactive elements have accessible names, correct roles, and form fields have labels; images have alt text where meaningful; canvas/expressive content is exposed to assistive technology.", "evidence": "Lighthouse failed aria-dialog-name and link-name; the image audit also reported 23 images without alt attributes (some decorative).", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Address this check using Modern Web Guidance “accessibility”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-14", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-inclusive", "principleCheckId": "sufficient-contrast", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Text and essential UI meet WCAG colour-contrast minimums against their background.", "evidence": "Lighthouse’s automated WCAG contrast audit failed on the home template.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Address this check using Modern Web Guidance “accessibility”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-15", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-inclusive", "principleCheckId": "structure-and-focus", "guidanceId": "move-dom-element-without-losing-state", "guidanceCategory": "user-experience", "severity": "low", "confidence": "high", "summary": "Heading and landmark structure is logical, focus order follows reading order, keyboard focus is always visible, and interactive state survives DOM moves.", "evidence": "Lighthouse failed heading-order and agent accessibility-tree checks; the homepage DOM had no h1, though a focused link had a visible auto outline.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Address this check using Modern Web Guidance “move-dom-element-without-losing-state”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-16", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-inclusive", "principleCheckId": "zoom-reflow-targets-and-media", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "low", "confidence": "high", "summary": "The experience remains usable when zoomed or reflowed, touch targets are large enough, media has captions or equivalents where needed, and the viewport does not prevent user scaling.", "evidence": "Viewport permits scaling and 360px reflow has no overflow, but Lighthouse failed touch-target sizing. No essential video/audio was present.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Address this check using Modern Web Guidance “accessibility”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-17", "pathId": "home", "url": "https://www.subito.it/", "principleId": "follow-best-practices", "principleCheckId": "no-console-errors", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "low", "confidence": "high", "summary": "The page loads without console errors or uncaught exceptions.", "evidence": "Lighthouse recorded browser console errors during its full load, while the later three-second page probe observed none.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Address this check using Modern Web Guidance “accessibility”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-18", "pathId": "home", "url": "https://www.subito.it/", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "guidanceId": "css", "guidanceCategory": "css", "severity": "low", "confidence": "high", "summary": "Valid doctype and charset, images sized with correct aspect ratio, no deprecated APIs misused, and CSS/HTML are well structured and not needlessly repetitive. (HTTPS, CSP and permission hygiene are judged under be-private-and-secure, not here.)", "evidence": "Document has HTML doctype and UTF-8, but Lighthouse flagged unsized images and the image audit found 39 missing dimensions plus 17 oversized assets.", "artifacts": [ "evidence/home-images.json" ], "suggestedFix": "Address this check using Modern Web Guidance “css”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-19", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-discoverable", "principleCheckId": "crawlable-and-mobile-friendly", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "low", "confidence": "high", "summary": "Links are crawlable (real href), there is a viewport meta tag, robots does not block indexing, and link text is descriptive.", "evidence": "Viewport and robots are present, but Lighthouse failed crawlable-anchors; recon found multiple category links resolving only to the homepage “#”.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Address this check using Modern Web Guidance “accessibility”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-20", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-discoverable", "principleCheckId": "canonical-and-indexing-signals", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "low", "confidence": "high", "summary": "Public pages expose the indexing signals search engines need: successful HTTP status, canonical URL when appropriate, hreflang for localized variants, robots/sitemap consistency, and no accidental noindex/noarchive policy.", "evidence": "Home/listing/detail have sound indexing signals, but the sell template lacked a canonical and /sitemap.xml returned 503 during the audit.", "artifacts": [ "evidence/site-files.json" ], "suggestedFix": "Address this check using Modern Web Guidance “accessibility”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-21", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "guidanceCategory": "security", "severity": "high", "confidence": "high", "summary": "Served over HTTPS with a sensible Content-Security-Policy and secure, SameSite cookies; no mixed content or obvious transport/header smells.", "evidence": "HTTPS, HSTS, nosniff and SAMEORIGIN are present, but CSP is absent and didomi_dcs is not Secure; two cookies use SameSite=None.", "artifacts": [ "evidence/home-headers.json" ], "suggestedFix": "Address this check using Modern Web Guidance “security”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-22", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-private-and-secure", "principleCheckId": "data-minimisation-and-third-parties", "guidanceId": "privacy", "guidanceCategory": "privacy", "severity": "high", "confidence": "high", "summary": "No over-collection of user data, no leaky third parties, and analytics/background data collection is minimised and batched rather than chatty or session-wide by default.", "evidence": "Tracker capture found 20 third-party origins and seven known tracker domains; HAR attributed 83 requests and 2.51MB to non-main origins.", "artifacts": [ "evidence/home-trackers.json" ], "suggestedFix": "Address this check using Modern Web Guidance “privacy”; verify under the same audited condition and retain before/after evidence.", "effort": "large" }, { "id": "F-23", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-private-and-secure", "principleCheckId": "in-context-permissions-and-modern-auth", "guidanceId": "passkeys", "guidanceCategory": "passkeys", "severity": "low", "confidence": "low", "summary": "Permission prompts are requested in context (not on load), and authentication uses modern, phishing-resistant methods (passkeys / WebAuthn) where relevant rather than passwords alone.", "evidence": "No permission request fired on load, but recon of the visible authentication entry found no evidence of passkey/WebAuthn support for this account-based marketplace.", "artifacts": [ "evidence/runtime-hygiene.json" ], "suggestedFix": "Address this check using Modern Web Guidance “passkeys”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-24", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "guidanceId": "security", "guidanceCategory": "security", "severity": "medium", "confidence": "high", "summary": "Browser-enforced defenses are configured where appropriate: HSTS, clickjacking protection (frame-ancestors / X-Frame-Options), Trusted Types for XSS-sensitive apps, origin isolation, privacy-preserving third-party cookie posture, and sensible Referrer-Policy / Permissions-Policy.", "evidence": "HSTS, X-Frame-Options and Referrer-Policy are present, but CSP and Permissions-Policy are absent; cookies include SameSite=None and one non-Secure cookie.", "artifacts": [ "evidence/home-headers.json" ], "suggestedFix": "Address this check using Modern Web Guidance “security”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-25", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-resilient", "principleCheckId": "offline-and-installable", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "low", "confidence": "high", "summary": "Where the site is an app, it is installable (web app manifest) and offers an offline fallback and works on flaky networks. (Contextual: a brochure or intrinsically-online site may reasonably not need this.)", "evidence": "A manifest exists but uses display:\"browser\" and prefer_related_applications:true; runtime probe found no controlling service worker.", "artifacts": [ "evidence/site-files.json" ], "suggestedFix": "Address this check using Modern Web Guidance “accessibility”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-26", "pathId": "error", "url": "https://www.subito.it/this-route-should-not-exist-web-uplift", "principleId": "be-resilient", "principleCheckId": "network-and-http-failure-states", "guidanceId": "persistent-toast-notifications", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "HTTP errors, network failures, timeouts and stale data states are handled intentionally: users see useful recovery options rather than blank screens, infinite spinners, broken shells, or misleading success states.", "evidence": "Unknown-route test produced a branded error message but no actionable retry, home, search, back, or support control.", "artifacts": [ "evidence/error-404-mobile.png" ], "suggestedFix": "Address this check using Modern Web Guidance “persistent-toast-notifications”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-27", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-internationalised", "principleCheckId": "lang-dir-and-logical-properties", "guidanceId": "translator", "guidanceCategory": "built-in-ai", "severity": "low", "confidence": "high", "summary": "Correct lang and dir attributes, logical CSS properties (inline/block) rather than physical left/right, and translation-ready markup so the layout and reading order survive other languages and writing modes.", "evidence": "HTML correctly declares lang=it and dir=ltr, but CSS probe counted 189 physical left/right-style rules, limiting writing-mode resilience.", "artifacts": [ "evidence/platform-probes.json" ], "suggestedFix": "Address this check using Modern Web Guidance “translator”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-28", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-trustworthy", "principleCheckId": "trustworthy-input-assistance", "guidanceId": "autofill-address-form", "guidanceCategory": "forms", "severity": "low", "confidence": "high", "summary": "Input is assisted, not obstructed: correct autocomplete tokens so address, payment, sign-in and sign-up fields autofill, and inputs are highlighted/sized to help the user rather than trip them up.", "evidence": "Search and geo inputs, plus the sell item-name input, explicitly use autocomplete=\"off\", preventing useful browser assistance.", "artifacts": [ "evidence/home-recon.json" ], "suggestedFix": "Address this check using Modern Web Guidance “autofill-address-form”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-29", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "deliver-optimized-decorative-images", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "Images and decorative assets are optimised and served at appropriate resolutions; decorative pseudo-element imagery and heavy decorative images are resolution-optimised rather than oversized.", "evidence": "Image audit found 17 oversized, 20 without srcset, 16 legacy-format and 23 below-fold non-lazy images.", "artifacts": [ "evidence/home-images.json" ], "suggestedFix": "Address this check using Modern Web Guidance “deliver-optimized-decorative-images”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-30", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-sustainable", "principleCheckId": "no-wasteful-work", "guidanceId": "deprioritize-background-fetches", "guidanceCategory": "performance", "severity": "medium", "confidence": "high", "summary": "Background work and fetching are not wasteful: background processing is efficient and de-prioritised, and the lightest technique that achieves the result is preferred over heavy or redundant work.", "evidence": "HAR loaded 120 resources and 43 scripts on the landing page, including ad/analytics work; 83 requests were outside the main origin.", "artifacts": [ "evidence/home-summary.json" ], "suggestedFix": "Address this check using Modern Web Guidance “deprioritize-background-fetches”; verify under the same audited condition and retain before/after evidence.", "effort": "large" }, { "id": "F-31", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-sustainable", "principleCheckId": "third-party-and-media-budget", "guidanceId": "deliver-optimized-decorative-images", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "Third-party scripts, fonts, video, audio, animation and heavy media are proportionate to the user value they provide; autoplay or background media is avoided unless essential and resource use is cached or deferred where possible.", "evidence": "2.51MB of 3.24MB transferred from non-main origins; GTM, consent and ad scripts were among the largest payloads.", "artifacts": [ "evidence/home-summary.json" ], "suggestedFix": "Address this check using Modern Web Guidance “deliver-optimized-decorative-images”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-32", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-memory-efficient", "principleCheckId": "no-leak-under-repeated-interaction", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "high", "summary": "Repeating a representative interaction (open/close a modal, navigate a route and back, infinite-scroll a list) about 10 times does not grow retained heap without bound; what is allocated during the interaction is released when it ends.", "evidence": "Heap after ten bottom/top scroll cycles was 39.5MB/714k nodes versus 26.4MB/438k baseline. Separate browser sessions and dynamic content reduce confidence, but the 49.8% retained-size signal warrants investigation.", "artifacts": [ "evidence/heap-post-scroll.json" ], "suggestedFix": "Address this check using Modern Web Guidance “accessibility”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" }, { "id": "F-33", "pathId": "home", "url": "https://www.subito.it/", "principleId": "be-memory-efficient", "principleCheckId": "bounded-footprint", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "high", "summary": "Heap size and DOM node count are reasonable for what the page is; the footprint is proportionate rather than bloated.", "evidence": "Baseline heap contained 437,993 nodes and 26.4MB self size before interaction, high for a landing/listing surface and consistent with the heavy script footprint.", "artifacts": [ "evidence/heap-baseline.json" ], "suggestedFix": "Address this check using Modern Web Guidance “accessibility”; verify under the same audited condition and retain before/after evidence.", "effort": "medium" } ], "taskList": [ { "id": "T-01", "title": "Core Web Vitals are in the good range: LCP is fast, interaction latency (INP) is low, and CLS is minimal; work is prioritised and deferred sensibly.", "priority": 1, "findingIds": [ "F-08" ], "guidanceId": "identify-inp-causes", "status": "open" }, { "id": "T-02", "title": "Critical resources are delivered efficiently: cache headers are useful, render-blocking chains are short, fonts do not block or shift text, HTTP delivery is modern, and network dependency trees do not delay the main content.", "priority": 2, "findingIds": [ "F-11" ], "guidanceId": "optimize-image-priority", "status": "open" }, { "id": "T-03", "title": "Interactive elements have accessible names, correct roles, and form fields have labels; images have alt text where meaningful; canvas/expressive content is exposed to assistive technology.", "priority": 3, "findingIds": [ "F-13" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-04", "title": "Text and essential UI meet WCAG colour-contrast minimums against their background.", "priority": 4, "findingIds": [ "F-14" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-05", "title": "Served over HTTPS with a sensible Content-Security-Policy and secure, SameSite cookies; no mixed content or obvious transport/header smells.", "priority": 5, "findingIds": [ "F-21" ], "guidanceId": "security", "status": "open" }, { "id": "T-06", "title": "No over-collection of user data, no leaky third parties, and analytics/background data collection is minimised and batched rather than chatty or session-wide by default.", "priority": 6, "findingIds": [ "F-22" ], "guidanceId": "privacy", "status": "open" }, { "id": "T-07", "title": "No intrusive pop-ups, interstitials or banners that obscure content on load; overlays are dismissible and content-first.", "priority": 7, "findingIds": [ "F-04" ], "guidanceId": "light-dismiss-a-dialog", "status": "open" }, { "id": "T-08", "title": "Touch targets are adequately sized and hover-only affordances have a non-hover fallback, and keyboard focus is visible, so the UI works for touch, pointer and keyboard alike.", "priority": 8, "findingIds": [ "F-06" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-09", "title": "Loading, empty, success, error, offline, and partial-completion states are visible and actionable; users can retry, undo, cancel, go back, or continue without losing context.", "priority": 9, "findingIds": [ "F-07" ], "guidanceId": "accessible-error-announcement", "status": "open" }, { "id": "T-10", "title": "No cumulative layout shift from late content (images, banners, fonts) that arrives without reserved space.", "priority": 10, "findingIds": [ "F-09" ], "guidanceId": "visually-stable-font-fallbacks", "status": "open" }, { "id": "T-11", "title": "The main thread is not blocked by long tasks or heavy scripting; work is deferred, chunked, prioritised, or moved off-thread.", "priority": 11, "findingIds": [ "F-10" ], "guidanceId": "break-up-long-tasks", "status": "open" }, { "id": "T-12", "title": "The page does not ship large unused or duplicated JavaScript/CSS, avoidable legacy bundles, or third-party code that dominates the load without user value.", "priority": 12, "findingIds": [ "F-12" ], "guidanceId": "identify-heavy-scripts", "status": "open" }, { "id": "T-13", "title": "Browser-enforced defenses are configured where appropriate: HSTS, clickjacking protection (frame-ancestors / X-Frame-Options), Trusted Types for XSS-sensitive apps, origin isolation, privacy-preserving third-party cookie posture, and sensible Referrer-Policy / Permissions-Policy.", "priority": 13, "findingIds": [ "F-24" ], "guidanceId": "security", "status": "open" }, { "id": "T-14", "title": "HTTP errors, network failures, timeouts and stale data states are handled intentionally: users see useful recovery options rather than blank screens, infinite spinners, broken shells, or misleading success states.", "priority": 14, "findingIds": [ "F-26" ], "guidanceId": "persistent-toast-notifications", "status": "open" }, { "id": "T-15", "title": "Images and decorative assets are optimised and served at appropriate resolutions; decorative pseudo-element imagery and heavy decorative images are resolution-optimised rather than oversized.", "priority": 15, "findingIds": [ "F-29" ], "guidanceId": "deliver-optimized-decorative-images", "status": "open" }, { "id": "T-16", "title": "Background work and fetching are not wasteful: background processing is efficient and de-prioritised, and the lightest technique that achieves the result is preferred over heavy or redundant work.", "priority": 16, "findingIds": [ "F-30" ], "guidanceId": "deprioritize-background-fetches", "status": "open" }, { "id": "T-17", "title": "Third-party scripts, fonts, video, audio, animation and heavy media are proportionate to the user value they provide; autoplay or background media is avoided unless essential and resource use is cached or deferred where possible.", "priority": 17, "findingIds": [ "F-31" ], "guidanceId": "deliver-optimized-decorative-images", "status": "open" }, { "id": "T-18", "title": "Repeating a representative interaction (open/close a modal, navigate a route and back, infinite-scroll a list) about 10 times does not grow retained heap without bound; what is allocated during the interaction is released when it ends.", "priority": 18, "findingIds": [ "F-32" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-19", "title": "Heap size and DOM node count are reasonable for what the page is; the footprint is proportionate rather than bloated.", "priority": 19, "findingIds": [ "F-33" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-20", "title": "Honours prefers-color-scheme: a usable dark mode exists and is driven by the user's preference (color-scheme / prefers-color-scheme / light-dark()), not hard-coded light only.", "priority": 20, "findingIds": [ "F-01" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "T-21", "title": "Honours prefers-contrast / forced-colors: controls, text and scrollbars remain visible under high-contrast preferences.", "priority": 21, "findingIds": [ "F-02" ], "guidanceId": "adapt-scrollbar-to-contrast-preferences", "status": "open" }, { "id": "T-22", "title": "Sticky/affixed UI reacts to scroll state and position (e.g. the new scroll-state(scrolled) query, shrinking headers, progress indicators) so chrome responds to position instead of static or JS-driven toggling.", "priority": 22, "findingIds": [ "F-03" ], "guidanceId": "shrinking-header-on-scroll", "status": "open" }, { "id": "T-23", "title": "Overlays and rich controls use the right primitive: popover (with declarative light-dismiss) for transient UI, dialog for modal flows, details for disclosure, native-but-branded selects and pickers, rather than ad-hoc divs.", "priority": 23, "findingIds": [ "F-05" ], "guidanceId": "declarative-dialog-popover-control", "status": "open" }, { "id": "T-24", "title": "Heading and landmark structure is logical, focus order follows reading order, keyboard focus is always visible, and interactive state survives DOM moves.", "priority": 24, "findingIds": [ "F-15" ], "guidanceId": "move-dom-element-without-losing-state", "status": "open" }, { "id": "T-25", "title": "The experience remains usable when zoomed or reflowed, touch targets are large enough, media has captions or equivalents where needed, and the viewport does not prevent user scaling.", "priority": 25, "findingIds": [ "F-16" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-26", "title": "The page loads without console errors or uncaught exceptions.", "priority": 26, "findingIds": [ "F-17" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-27", "title": "Valid doctype and charset, images sized with correct aspect ratio, no deprecated APIs misused, and CSS/HTML are well structured and not needlessly repetitive. (HTTPS, CSP and permission hygiene are judged under be-private-and-secure, not here.)", "priority": 27, "findingIds": [ "F-18" ], "guidanceId": "css", "status": "open" }, { "id": "T-28", "title": "Links are crawlable (real href), there is a viewport meta tag, robots does not block indexing, and link text is descriptive.", "priority": 28, "findingIds": [ "F-19" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-29", "title": "Public pages expose the indexing signals search engines need: successful HTTP status, canonical URL when appropriate, hreflang for localized variants, robots/sitemap consistency, and no accidental noindex/noarchive policy.", "priority": 29, "findingIds": [ "F-20" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-30", "title": "Permission prompts are requested in context (not on load), and authentication uses modern, phishing-resistant methods (passkeys / WebAuthn) where relevant rather than passwords alone.", "priority": 30, "findingIds": [ "F-23" ], "guidanceId": "passkeys", "status": "open" }, { "id": "T-31", "title": "Where the site is an app, it is installable (web app manifest) and offers an offline fallback and works on flaky networks. (Contextual: a brochure or intrinsically-online site may reasonably not need this.)", "priority": 31, "findingIds": [ "F-25" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-32", "title": "Correct lang and dir attributes, logical CSS properties (inline/block) rather than physical left/right, and translation-ready markup so the layout and reading order survive other languages and writing modes.", "priority": 32, "findingIds": [ "F-27" ], "guidanceId": "translator", "status": "open" }, { "id": "T-33", "title": "Input is assisted, not obstructed: correct autocomplete tokens so address, payment, sign-in and sign-up fields autofill, and inputs are highlighted/sized to help the user rather than trip them up.", "priority": 33, "findingIds": [ "F-28" ], "guidanceId": "autofill-address-form", "status": "open" } ], "budget": { "wallClockSeconds": 900, "pathCount": 5, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-23T07-47-59-595Z" }