{ "url": "https://www.rightmove.co.uk", "auditedAt": "2026-07-21T02:23:46.685Z", "mode": "report", "status": "completed", "statusDetail": "Coverage-complete agentic audit of seven representative public states. Authenticated account changes, financial applications and real agent-contact submission were excluded to avoid credentials or external side effects.", "page": { "appType": "hybrid", "framework": "Mixed server-rendered/React-like/Next.js templates", "notes": "Large UK property marketplace. Five principal archetypes plus login and not-found behavior were sampled. Geographic/property permutations sharing these templates were not exhaustively tested." }, "evidenceUsed": [ "screenshot", "video", "DOM/evaluate probes", "layout metrics and observers", "DevTools trace", "HAR", "discoverability/no-JS comparison", "headers", "cookies", "trackers", "secrets", "images", "heap snapshots and memory metrics", "Lighthouse", "robots.txt/sitemap/HTTP probes", "Modern Web Guidance 0.0.172" ], "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": "other", "path": "evidence/404-headers.txt", "caption": "Retained 404-headers.txt evidence from the Rightmove audit.", "findingIds": [ "f-recovery", "f-indexing-signals", "f-http-failure" ] }, { "type": "screenshot", "path": "evidence/404.png", "caption": "Retained 404.png evidence from the Rightmove audit.", "findingIds": [ "f-recovery", "f-http-failure" ] }, { "type": "other", "path": "evidence/article-desktop.log", "caption": "Retained article-desktop.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/article-desktop.png", "caption": "Retained article-desktop.png evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/article-discoverability-crawler.png", "caption": "Retained article-discoverability-crawler.png evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/article-discoverability-rendered.png", "caption": "Retained article-discoverability-rendered.png evidence from the Rightmove audit.", "findingIds": [] }, { "type": "discoverability", "path": "evidence/article-discoverability.json", "caption": "Retained article-discoverability.json evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/article-discoverability.log", "caption": "Retained article-discoverability.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "layout", "path": "evidence/article-layout-mobile.json", "caption": "Retained article-layout-mobile.json evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "other", "path": "evidence/article-layout-mobile.log", "caption": "Retained article-layout-mobile.log evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "other", "path": "evidence/article-mobile.log", "caption": "Retained article-mobile.log evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "screenshot", "path": "evidence/article-mobile.png", "caption": "Retained article-mobile.png evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "dom", "path": "evidence/article-probe.json", "caption": "Retained article-probe.json evidence from the Rightmove audit.", "findingIds": [ "f-a11y-structure", "f-structured-data", "f-i18n-structure" ] }, { "type": "dom", "path": "evidence/article-probe.log", "caption": "Retained article-probe.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/detail-desktop.log", "caption": "Retained detail-desktop.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/detail-desktop.png", "caption": "Retained detail-desktop.png evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/detail-discoverability-crawler.png", "caption": "Retained detail-discoverability-crawler.png evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/detail-discoverability-rendered.png", "caption": "Retained detail-discoverability-rendered.png evidence from the Rightmove audit.", "findingIds": [] }, { "type": "discoverability", "path": "evidence/detail-discoverability.json", "caption": "Retained detail-discoverability.json evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/detail-discoverability.log", "caption": "Retained detail-discoverability.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "layout", "path": "evidence/detail-layout-mobile.json", "caption": "Retained detail-layout-mobile.json evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "other", "path": "evidence/detail-layout-mobile.log", "caption": "Retained detail-layout-mobile.log evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "other", "path": "evidence/detail-mobile.log", "caption": "Retained detail-mobile.log evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "screenshot", "path": "evidence/detail-mobile.png", "caption": "Retained detail-mobile.png evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "dom", "path": "evidence/detail-probe.json", "caption": "Retained detail-probe.json evidence from the Rightmove audit.", "findingIds": [ "f-structured-data" ] }, { "type": "dom", "path": "evidence/detail-probe.log", "caption": "Retained detail-probe.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "dom", "path": "evidence/home-contrast-probe.json", "caption": "Retained home-contrast-probe.json evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/home-cookies.json", "caption": "Retained home-cookies.json evidence from the Rightmove audit.", "findingIds": [ "f-security-headers", "f-browser-policies" ] }, { "type": "other", "path": "evidence/home-cookies.log", "caption": "Retained home-cookies.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "dom", "path": "evidence/home-dark-probe.json", "caption": "Retained home-dark-probe.json evidence from the Rightmove audit.", "condition": "prefers-color-scheme: dark", "findingIds": [ "f-dark" ] }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "Retained home-dark.png evidence from the Rightmove audit.", "condition": "prefers-color-scheme: dark", "findingIds": [ "f-dark" ] }, { "type": "other", "path": "evidence/home-desktop.log", "caption": "Retained home-desktop.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "Retained home-desktop.png evidence from the Rightmove audit.", "findingIds": [ "f-consent-interstitial", "f-third-parties" ] }, { "type": "screenshot", "path": "evidence/home-discoverability-crawler.png", "caption": "Retained home-discoverability-crawler.png evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-discoverability-rendered.png", "caption": "Retained home-discoverability-rendered.png evidence from the Rightmove audit.", "findingIds": [] }, { "type": "discoverability", "path": "evidence/home-discoverability.json", "caption": "Retained home-discoverability.json evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/home-discoverability.log", "caption": "Retained home-discoverability.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "Retained home-dom.json evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/home-har.log", "caption": "Retained home-har.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/home-headers.json", "caption": "Retained home-headers.json evidence from the Rightmove audit.", "findingIds": [ "f-security-headers", "f-browser-policies" ] }, { "type": "other", "path": "evidence/home-headers.log", "caption": "Retained home-headers.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "heap", "path": "evidence/home-heap-baseline.heapsnapshot", "caption": "Retained home-heap-baseline.heapsnapshot evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/home-heap-baseline.log", "caption": "Retained home-heap-baseline.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "heap", "path": "evidence/home-heap-post.heapsnapshot", "caption": "Retained home-heap-post.heapsnapshot evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/home-heap-post.log", "caption": "Retained home-heap-post.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/home-images.json", "caption": "Retained home-images.json evidence from the Rightmove audit.", "findingIds": [ "f-assets", "f-sustainable-assets" ] }, { "type": "other", "path": "evidence/home-images.log", "caption": "Retained home-images.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "layout", "path": "evidence/home-layout-mobile.json", "caption": "Retained home-layout-mobile.json evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [ "f-a11y-targets" ] }, { "type": "other", "path": "evidence/home-layout-mobile.log", "caption": "Retained home-layout-mobile.log evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "other", "path": "evidence/home-memory-metrics.json", "caption": "Retained home-memory-metrics.json evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/home-mobile.log", "caption": "Retained home-mobile.log evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "Retained home-mobile.png evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [ "f-consent-interstitial" ] }, { "type": "dom", "path": "evidence/home-probe.json", "caption": "Retained home-probe.json evidence from the Rightmove audit.", "findingIds": [ "f-consent-semantics", "f-indexing-signals", "f-i18n-structure", "f-autocomplete" ] }, { "type": "dom", "path": "evidence/home-probe.log", "caption": "Retained home-probe.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "dom", "path": "evidence/home-recon.json", "caption": "Retained home-recon.json evidence from the Rightmove audit.", "findingIds": [] }, { "type": "dom", "path": "evidence/home-reduced-probe.json", "caption": "Retained home-reduced-probe.json evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/home-secrets.json", "caption": "Retained home-secrets.json evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/home-secrets.log", "caption": "Retained home-secrets.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/home-summary.json", "caption": "Retained home-summary.json evidence from the Rightmove audit.", "findingIds": [ "f-delivery", "f-console", "f-third-parties", "f-wasteful-work", "f-third-party-budget" ] }, { "type": "screenshot", "path": "evidence/home-tab-contact-sheet.jpg", "caption": "Retained home-tab-contact-sheet.jpg evidence from the Rightmove audit.", "findingIds": [] }, { "type": "video", "path": "evidence/home-tab-transition.mp4", "caption": "Retained home-tab-transition.mp4 evidence from the Rightmove audit.", "findingIds": [] }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "Retained home-trace-summary.json evidence from the Rightmove audit.", "findingIds": [ "f-main-thread" ] }, { "type": "trace", "path": "evidence/home-trace.json", "caption": "Retained home-trace.json evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/home-trace.log", "caption": "Retained home-trace.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/home-trackers.json", "caption": "Retained home-trackers.json evidence from the Rightmove audit.", "findingIds": [ "f-third-parties", "f-third-party-budget" ] }, { "type": "other", "path": "evidence/home-trackers.log", "caption": "Retained home-trackers.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "har", "path": "evidence/home.har", "caption": "Retained home.har evidence from the Rightmove audit.", "findingIds": [ "f-delivery" ] }, { "type": "other", "path": "evidence/lighthouse-failures.txt", "caption": "Retained lighthouse-failures.txt evidence from the Rightmove audit.", "findingIds": [ "f-a11y-names", "f-platform-hygiene" ] }, { "type": "lighthouse", "path": "evidence/lighthouse-home.json", "caption": "Retained lighthouse-home.json evidence from the Rightmove audit.", "findingIds": [ "f-cwv", "f-console" ] }, { "type": "other", "path": "evidence/lighthouse-home.log", "caption": "Retained lighthouse-home.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "lighthouse", "path": "evidence/lighthouse-listing.json", "caption": "Retained lighthouse-listing.json evidence from the Rightmove audit.", "findingIds": [ "f-targets", "f-cwv", "f-main-thread", "f-unused-code", "f-a11y-names", "f-a11y-structure", "f-assets", "f-platform-hygiene", "f-wasteful-work", "f-agent-ready" ] }, { "type": "other", "path": "evidence/lighthouse-listing.log", "caption": "Retained lighthouse-listing.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "lighthouse", "path": "evidence/lighthouse-performance-details.json", "caption": "Retained lighthouse-performance-details.json evidence from the Rightmove audit.", "findingIds": [ "f-unused-code" ] }, { "type": "other", "path": "evidence/listing-desktop.log", "caption": "Retained listing-desktop.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/listing-desktop.png", "caption": "Retained listing-desktop.png evidence from the Rightmove audit.", "findingIds": [ "f-consent-interstitial" ] }, { "type": "screenshot", "path": "evidence/listing-discoverability-crawler.png", "caption": "Retained listing-discoverability-crawler.png evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/listing-discoverability-rendered.png", "caption": "Retained listing-discoverability-rendered.png evidence from the Rightmove audit.", "findingIds": [] }, { "type": "discoverability", "path": "evidence/listing-discoverability.json", "caption": "Retained listing-discoverability.json evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/listing-discoverability.log", "caption": "Retained listing-discoverability.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "layout", "path": "evidence/listing-layout-mobile.json", "caption": "Retained listing-layout-mobile.json evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [ "f-a11y-targets" ] }, { "type": "other", "path": "evidence/listing-layout-mobile.log", "caption": "Retained listing-layout-mobile.log evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "other", "path": "evidence/listing-mobile.log", "caption": "Retained listing-mobile.log evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "screenshot", "path": "evidence/listing-mobile.png", "caption": "Retained listing-mobile.png evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "dom", "path": "evidence/listing-probe.json", "caption": "Retained listing-probe.json evidence from the Rightmove audit.", "findingIds": [ "f-consent-semantics", "f-a11y-structure", "f-structured-data", "f-i18n-structure", "f-agent-ready" ] }, { "type": "dom", "path": "evidence/listing-probe.log", "caption": "Retained listing-probe.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/listing-scroll-contact-sheet.jpg", "caption": "Retained listing-scroll-contact-sheet.jpg evidence from the Rightmove audit.", "findingIds": [ "f-scroll-chrome" ] }, { "type": "video", "path": "evidence/listing-scroll.mp4", "caption": "Retained listing-scroll.mp4 evidence from the Rightmove audit.", "findingIds": [ "f-scroll-chrome" ] }, { "type": "dom", "path": "evidence/login-probe.json", "caption": "Retained login-probe.json evidence from the Rightmove audit.", "findingIds": [ "f-auth", "f-autocomplete", "f-account-flow" ] }, { "type": "dom", "path": "evidence/probe-summary.txt", "caption": "Retained probe-summary.txt evidence from the Rightmove audit.", "findingIds": [ "f-targets", "f-a11y-targets" ] }, { "type": "other", "path": "evidence/robots.txt", "caption": "Retained robots.txt evidence from the Rightmove audit.", "findingIds": [ "f-indexing-signals", "f-agent-ready" ] }, { "type": "other", "path": "evidence/sitemap.xml", "caption": "Retained sitemap.xml evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/valuation-desktop.log", "caption": "Retained valuation-desktop.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/valuation-desktop.png", "caption": "Retained valuation-desktop.png evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/valuation-discoverability-crawler.png", "caption": "Retained valuation-discoverability-crawler.png evidence from the Rightmove audit.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/valuation-discoverability-rendered.png", "caption": "Retained valuation-discoverability-rendered.png evidence from the Rightmove audit.", "findingIds": [] }, { "type": "discoverability", "path": "evidence/valuation-discoverability.json", "caption": "Retained valuation-discoverability.json evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/valuation-discoverability.log", "caption": "Retained valuation-discoverability.log evidence from the Rightmove audit.", "findingIds": [] }, { "type": "other", "path": "evidence/valuation-invalid.json", "caption": "Retained valuation-invalid.json evidence from the Rightmove audit.", "findingIds": [ "f-form-errors" ] }, { "type": "layout", "path": "evidence/valuation-layout-mobile.json", "caption": "Retained valuation-layout-mobile.json evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "other", "path": "evidence/valuation-layout-mobile.log", "caption": "Retained valuation-layout-mobile.log evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "other", "path": "evidence/valuation-mobile.log", "caption": "Retained valuation-mobile.log evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "screenshot", "path": "evidence/valuation-mobile.png", "caption": "Retained valuation-mobile.png evidence from the Rightmove audit.", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "dom", "path": "evidence/valuation-probe.json", "caption": "Retained valuation-probe.json evidence from the Rightmove audit.", "findingIds": [ "f-indexing-signals", "f-form-errors", "f-autocomplete" ] }, { "type": "dom", "path": "evidence/valuation-probe.log", "caption": "Retained valuation-probe.log evidence from the Rightmove audit.", "findingIds": [] } ], "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": "Objective primitive/tool evidence described in the linked finding", "evidence": "Under emulated prefers-color-scheme: dark, the body remained rgb(255,255,255), text remained rgb(83,83,95), and computed color-scheme was normal. The dark screenshot is visually identical to the light capture.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dark-probe.json", "evidence/home-dark.png" ], "findingIds": [ "f-dark" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "high", "method": "Reduced-motion emulation and getAnimations() probe", "evidence": "Under prefers-reduced-motion: reduce the media query matched and no active animations remained.", "artifacts": [ "evidence/home-reduced-probe.json" ], "pathIds": [ "home" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "pass", "confidence": "high", "method": "Forced-colors/prefers-contrast computed-style probe", "evidence": "Forced colors and high contrast matched; text became white on black and primary controls retained visible 2px borders.", "artifacts": [ "evidence/home-contrast-probe.json" ], "pathIds": [ "home" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "pass", "confidence": "medium", "method": "Recorded representative state transition", "evidence": "The consent surface dismisses with a short visual transition and the resulting property-search state remains coherent.", "artifacts": [ "evidence/home-tab-transition.mp4", "evidence/home-tab-contact-sheet.jpg" ], "pathIds": [ "home" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "not-applicable", "confidence": "high", "method": "Scroll video and animation probe", "evidence": "No parallax, scrollytelling or scroll-linked reveal was present on the sampled routes, so there was no scroll-linked motion implementation to assess.", "artifacts": [ "evidence/listing-scroll.mp4" ], "reason": "No parallax, scrollytelling or scroll-linked reveal was present on the sampled routes, so there was no scroll-linked motion implementation to assess." }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "pass", "confidence": "medium", "method": "Mobile screenshots, layout and scroll interaction", "evidence": "Native scrolling remained responsive, showed no horizontal overflow and did not expose custom gesture behavior fighting the platform.", "artifacts": [ "evidence/listing-scroll.mp4", "evidence/listing-layout-mobile.json" ], "pathIds": [ "home" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "issues", "confidence": "medium", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "The listing scroll video shows the same full filter/header chrome while content moves; no progress or reduced chrome state appears.", "pathIds": [ "listing" ], "artifacts": [ "evidence/listing-scroll.mp4", "evidence/listing-scroll-contact-sheet.jpg" ], "findingIds": [ "f-scroll-chrome" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "pass", "confidence": "medium", "method": "Visual and DOM inspection of header/filter controls", "evidence": "Menus and filters remained visually attached to their controls in sampled states; no edge drift was observed.", "artifacts": [ "evidence/home-desktop.png", "evidence/listing-desktop.png" ], "pathIds": [ "home" ] }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "pass", "confidence": "high", "method": "Visual hierarchy inspection across home, listing and detail", "evidence": "Active search tabs, result count, breadcrumbs, map view and clear property CTAs preserve orientation across templates.", "artifacts": [ "evidence/home-tab-contact-sheet.jpg", "evidence/listing-desktop.png", "evidence/detail-desktop.png" ], "pathIds": [ "home" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "Desktop and 360px screenshots on every representative route show a modal covering the primary content before interaction. On mobile it occupies most of the viewport.", "pathIds": [ "listing" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png", "evidence/listing-desktop.png" ], "findingIds": [ "f-consent-interstitial" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "The DOM probe found aria-modal=1 but zero elements and zero popovers on home, listing, detail and valuation routes.", "pathIds": [ "listing" ], "artifacts": [ "evidence/home-probe.json", "evidence/listing-probe.json" ], "findingIds": [ "f-consent-semantics" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "pass", "confidence": "medium", "method": "Desktop/mobile screenshot review", "evidence": "Outside the consent interruption, the primary search and property content dominate the viewport and mobile chrome collapses appropriately.", "artifacts": [ "evidence/home-mobile.png", "evidence/listing-mobile.png" ], "pathIds": [ "home" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "pass", "confidence": "high", "method": "Layout primitive at 360x800 on five templates", "evidence": "Every sampled mobile route reported horizontalOverflowPx=0 and scrollWidth=clientWidth=360 with a viewport meta tag.", "artifacts": [ "evidence/home-layout-mobile.json", "evidence/listing-layout-mobile.json", "evidence/detail-layout-mobile.json", "evidence/article-layout-mobile.json", "evidence/valuation-layout-mobile.json" ], "pathIds": [ "home" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "pass", "confidence": "medium", "method": "Mobile/desktop visual comparison and CSS feature probe", "evidence": "Components reflow across all five templates without overflow; home inline CSS includes @container and uses logical properties.", "artifacts": [ "evidence/home-probe.json", "evidence/home-mobile.png", "evidence/listing-mobile.png" ], "pathIds": [ "home" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "The DOM probes found at least 30 visible controls below 24px in one dimension; the listing clear button also lacks an accessible name. Focus itself was visible.", "pathIds": [ "listing" ], "artifacts": [ "evidence/probe-summary.txt", "evidence/lighthouse-listing.json" ], "findingIds": [ "f-targets" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "high", "method": "First-viewport and heading/CTA review", "evidence": "Home clearly offers Buy/Rent/Sold search; listing identifies 28,228 South London results; detail exposes contact actions; valuation asks for a postcode.", "artifacts": [ "evidence/home-tab-contact-sheet.jpg", "evidence/listing-desktop.png", "evidence/detail-desktop.png", "evidence/valuation-mobile.png" ], "pathIds": [ "home" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "pass", "confidence": "medium", "method": "Representative route journey and direct page-load checks", "evidence": "The public journey from search intent to listing to a live property detail and agent-contact affordance was reachable without authentication; real submission was excluded to avoid side effects.", "artifacts": [ "evidence/home-recon.json", "evidence/listing-probe.json", "evidence/detail-probe.json" ], "pathIds": [ "home" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "A deliberately unknown URL returned HTTP 200 rather than 404. The captured first view remained behind the consent interstitial, weakening error recognition and recovery.", "pathIds": [ "not-found" ], "artifacts": [ "evidence/404-headers.txt", "evidence/404.png" ], "findingIds": [ "f-recovery" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "Lighthouse measured listing LCP at 33,720ms, TBT at 1,121.5ms and performance 0.38. Home LCP was 2,646.6ms and TBT 634.5ms.", "pathIds": [ "listing" ], "artifacts": [ "evidence/lighthouse-listing.json", "evidence/lighthouse-home.json" ], "findingIds": [ "f-cwv" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "pass", "confidence": "high", "method": "Layout-shift observer on five mobile templates plus Lighthouse", "evidence": "Observed CLS was 0 to 0.000009 across sampled mobile routes; Lighthouse listing CLS was 0 and home CLS 0.00138.", "artifacts": [ "evidence/home-layout-mobile.json", "evidence/listing-layout-mobile.json", "evidence/lighthouse-home.json" ], "pathIds": [ "home" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "Lighthouse measured 1,121.5ms TBT on listing and 634.5ms on home; the trace also recorded a 92.87ms long task.", "pathIds": [ "listing" ], "artifacts": [ "evidence/lighthouse-listing.json", "evidence/home-trace-summary.json" ], "findingIds": [ "f-main-thread" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "The home HAR recorded 65 requests and 2.93MB transferred, including 1.99MB script and 2.46MB third-party bytes. It also found a parser-inserted stylesheet and script candidates plus an uncompressed JS resource.", "pathIds": [ "home" ], "artifacts": [ "evidence/home.har", "evidence/home-summary.json" ], "findingIds": [ "f-delivery" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "Lighthouse estimated 1,514,686 bytes of unused JavaScript and 46,116 bytes of unused CSS; a featured-customer bundle appears repeatedly in the waste list.", "pathIds": [ "listing" ], "artifacts": [ "evidence/lighthouse-listing.json", "evidence/lighthouse-performance-details.json" ], "findingIds": [ "f-unused-code" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "Lighthouse found an unnamed clear button, an unlabeled sort select, prohibited aria-label on a roleless div, and repeated visible Contact labels that do not match their accessible names.", "pathIds": [ "listing" ], "artifacts": [ "evidence/lighthouse-listing.json", "evidence/lighthouse-failures.txt" ], "findingIds": [ "f-a11y-names" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "pass", "confidence": "high", "method": "Lighthouse contrast audit and forced-colors probe", "evidence": "Lighthouse listing color-contrast passed and forced-colors preserved visible text and primary control borders.", "artifacts": [ "evidence/lighthouse-listing.json", "evidence/home-contrast-probe.json" ], "pathIds": [ "home" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "Lighthouse failed heading-order on listing; its footer jumps to H4. DOM probes also show H1 followed directly by H3 on listing and article routes.", "pathIds": [ "listing" ], "artifacts": [ "evidence/lighthouse-listing.json", "evidence/listing-probe.json", "evidence/article-probe.json" ], "findingIds": [ "f-a11y-structure" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "pass", "confidence": "medium", "method": "Desktop/mobile screenshot review", "evidence": "Headings and body copy remain readable with comfortable line lengths and no clipping on the sampled templates.", "artifacts": [ "evidence/article-mobile.png", "evidence/detail-desktop.png" ], "pathIds": [ "home" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "All five mobile layouts had zero horizontal overflow and viewport scaling was allowed, but probes repeatedly found at least 30 visible controls smaller than 24px in one dimension.", "pathIds": [ "listing" ], "artifacts": [ "evidence/home-layout-mobile.json", "evidence/listing-layout-mobile.json", "evidence/probe-summary.txt" ], "findingIds": [ "f-a11y-targets" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "Lighthouse and the HAR recorded repeated HTTP 401 failures from the Elastic APM RUM intake endpoint.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-summary.json" ], "findingIds": [ "f-console" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "The image probe found all four home images missing width/height, all four oversized and three legacy JPEGs; Lighthouse found multiple estate-agent logos rendered at aspect ratios that do not match source assets.", "pathIds": [ "listing" ], "artifacts": [ "evidence/home-images.json", "evidence/lighthouse-listing.json" ], "findingIds": [ "f-assets" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "issues", "confidence": "medium", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "Lighthouse found many large first-party scripts with missing maps and several advertised .map URLs returning 400/404.", "pathIds": [ "listing" ], "artifacts": [ "evidence/lighthouse-listing.json", "evidence/lighthouse-failures.txt" ], "findingIds": [ "f-platform-hygiene" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "high", "method": "DOM probe across five representative public templates", "evidence": "All sampled public routes have unique descriptive titles and meta descriptions.", "artifacts": [ "evidence/home-probe.json", "evidence/listing-probe.json", "evidence/detail-probe.json", "evidence/article-probe.json", "evidence/valuation-probe.json" ], "pathIds": [ "home" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "pass", "confidence": "high", "method": "DOM, robots and Lighthouse SEO inspection", "evidence": "Representative pages have viewport metadata, real href links and crawler-visible content; Lighthouse SEO scored 1.0 on home and listing.", "artifacts": [ "evidence/home-recon.json", "evidence/robots.txt", "evidence/lighthouse-listing.json" ], "pathIds": [ "home" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "Home and valuation probes found no canonical URL, while an unknown route returned HTTP 200. The site does provide robots.txt, a large sitemap and canonical URLs on listing/detail/article templates.", "pathIds": [ "not-found" ], "artifacts": [ "evidence/home-probe.json", "evidence/valuation-probe.json", "evidence/404-headers.txt", "evidence/robots.txt" ], "findingIds": [ "f-indexing-signals" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "The property detail and listing probes found zero JSON-LD blocks; home also lacked Organization/WebSite JSON-LD. The article template was the only sampled route with JSON-LD.", "pathIds": [ "listing" ], "artifacts": [ "evidence/detail-probe.json", "evidence/listing-probe.json", "evidence/article-probe.json" ], "findingIds": [ "f-structured-data" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "The headers primitive confirmed HTTPS but found no CSP, HSTS or X-Content-Type-Options. The cookies primitive reported all eight observed cookies without Secure.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json", "evidence/home-cookies.json" ], "findingIds": [ "f-security-headers" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "Before consent choice, the HAR recorded 49 third-party requests and 2.46MB third-party transfer. The tracker probe found 11 third-party origins and five known tracker domains; the dialog names 215 partners.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/home-trackers.json", "evidence/home-desktop.png" ], "findingIds": [ "f-third-parties" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "The login probe found an email input with no autocomplete token and no passkey/WebAuthn text or code signal. No permission prompt appeared on sampled page loads.", "pathIds": [ "login" ], "artifacts": [ "evidence/login-probe.json" ], "findingIds": [ "f-auth" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "Headers inspection found no frame protection, Referrer-Policy or Permissions-Policy in addition to missing CSP and HSTS. Several first-party cookies use SameSite=None without Secure.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json", "evidence/home-cookies.json" ], "findingIds": [ "f-browser-policies" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "pass", "confidence": "high", "method": "Discoverability no-JavaScript comparison on five templates", "evidence": "Raw HTML retained 74% to 92% of rendered content tokens; none of the five routes was a JS shell and each preserved an H1/title.", "artifacts": [ "evidence/home-discoverability.json", "evidence/listing-discoverability.json", "evidence/detail-discoverability.json", "evidence/article-discoverability.json", "evidence/valuation-discoverability.json" ], "pathIds": [ "home" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "pass", "confidence": "medium", "method": "Mobile screenshots, layout and interaction review", "evidence": "Sampled overlays, filters and scrolling remained within the viewport and no runtime blank state was observed.", "artifacts": [ "evidence/listing-mobile.png", "evidence/listing-scroll.mp4", "evidence/listing-layout-mobile.json" ], "pathIds": [ "home" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "not-applicable", "confidence": "high", "method": "Manifest/service-worker probe plus site-purpose judgement", "evidence": "This live property marketplace depends on current inventory and contact services; offline operation is not a meaningful core journey. A manifest appears only on valuation and no service worker controls sampled routes.", "artifacts": [ "evidence/valuation-probe.json", "evidence/home-probe.json" ], "reason": "This live property marketplace depends on current inventory and contact services; offline operation is not a meaningful core journey. A manifest appears only on valuation and no service worker controls sampled routes." }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "The unknown-route test returned 200 OK rather than a 404 status, so caches, crawlers and users cannot reliably distinguish failure from success.", "pathIds": [ "not-found" ], "artifacts": [ "evidence/404-headers.txt", "evidence/404.png" ], "findingIds": [ "f-http-failure" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "Sampled pages use en, en-GB and en-US despite UK content. Inline-CSS probing found logical-property use on home but not on listing, detail, article or valuation templates.", "pathIds": [ "listing" ], "artifacts": [ "evidence/home-probe.json", "evidence/listing-probe.json", "evidence/article-probe.json" ], "findingIds": [ "f-i18n-structure" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "pass", "confidence": "medium", "method": "Rendered content and language/price/date inspection", "evidence": "Sampled UK listings and editorial content present pounds sterling and human-readable UK property dates consistently.", "artifacts": [ "evidence/listing-desktop.png", "evidence/detail-probe.json", "evidence/article-probe.json" ], "pathIds": [ "home" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "not-applicable", "confidence": "high", "method": "Content/DOM review", "evidence": "The representative public routes contain no scheduled cross-time-zone event flow or user-entered time data to assess.", "artifacts": [ "evidence/home-probe.json", "evidence/detail-probe.json" ], "reason": "The representative public routes contain no scheduled cross-time-zone event flow or user-entered time data to assess." }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "pass", "confidence": "medium", "method": "Consent, commercial CTA and account-entry visual review", "evidence": "The consent dialog gives Accept all and Reject all equal prominence, names the partner count and provides settings; sampled listing prices and contact actions are plainly labelled.", "artifacts": [ "evidence/home-desktop.png", "evidence/listing-desktop.png", "evidence/login-probe.json" ], "pathIds": [ "home" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "The valuation probe found postcodeInput is not required; its empty value reports checkValidity() true, aria-invalid is absent, and no alert/error text was present.", "pathIds": [ "home" ], "artifacts": [ "evidence/valuation-invalid.json", "evidence/valuation-probe.json" ], "findingIds": [ "f-form-errors" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "The login email field has an empty autocomplete value, the valuation postcode has none, and location search explicitly uses autocomplete=off.", "pathIds": [ "login" ], "artifacts": [ "evidence/login-probe.json", "evidence/valuation-probe.json", "evidence/home-probe.json" ], "findingIds": [ "f-autocomplete" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "The login surface offers email continuation only; the probe found no WebAuthn/passkey signal and the email input lacks autocomplete. Actual account changes were excluded to avoid side effects.", "pathIds": [ "login" ], "artifacts": [ "evidence/login-probe.json" ], "findingIds": [ "f-account-flow" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "All four probed home images were oversized for their rendered size, four lacked intrinsic dimensions and three used JPEG; below-fold images were not lazy-loaded.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-images.json" ], "findingIds": [ "f-sustainable-assets" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "Lighthouse estimated 1.51MB unused JS on listing, while home loads repeated analytics/advertising tags and sends APM requests that fail with 401.", "pathIds": [ "listing" ], "artifacts": [ "evidence/lighthouse-listing.json", "evidence/home-summary.json" ], "findingIds": [ "f-wasteful-work" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "On home, 49 of 65 requests and 2.46 of 2.93MB transferred were third-party; Google Tag Manager alone accounted for about 1.25MB.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/home-trackers.json" ], "findingIds": [ "f-third-party-budget" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "issues", "confidence": "medium", "method": "Objective primitive/tool evidence described in the linked finding", "evidence": "The sampled routes expose no WebMCP/agent tool signals, property pages lack JSON-LD, robots.txt blocks GPTBot, and Lighthouse agentic-browsing scored 0.33 on listing.", "pathIds": [ "listing" ], "artifacts": [ "evidence/listing-probe.json", "evidence/robots.txt", "evidence/lighthouse-listing.json" ], "findingIds": [ "f-agent-ready" ] }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "DOM/source-signal and use-case judgement", "evidence": "No built-in AI inference is required for the sampled property search, listing, detail, editorial or valuation tasks.", "artifacts": [ "evidence/home-probe.json", "evidence/listing-probe.json" ], "reason": "No built-in AI inference is required for the sampled property search, listing, detail, editorial or valuation tasks." }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "pass", "confidence": "medium", "method": "Ten repeated full-page scroll cycles with before/after memory metrics", "evidence": "After ten down/up scroll cycles, DOM nodes stayed at 630 and used JS heap decreased from 37,769,460 to 37,702,009 bytes.", "artifacts": [ "evidence/home-memory-metrics.json", "evidence/home-heap-baseline.heapsnapshot", "evidence/home-heap-post.heapsnapshot" ], "pathIds": [ "home" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "pass", "confidence": "low", "method": "Heap snapshots and current DOM/heap metrics", "evidence": "Fresh snapshots were about 39.9MB to 41.6MB self-size; live metrics showed about 37.8MB JS heap and 630 DOM elements, proportionate though worth monitoring for a large marketplace.", "artifacts": [ "evidence/home-heap-baseline.log", "evidence/home-heap-post.log", "evidence/home-memory-metrics.json" ], "pathIds": [ "home" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "low", "method": "Repeated-interaction DOM/heap stability probe", "evidence": "Across ten repeated scroll cycles DOM count remained exactly 630 and JS heap fell slightly; this gives no sign of unbounded retained DOM in the exercised interaction, though listener internals were not independently counted.", "artifacts": [ "evidence/home-memory-metrics.json" ], "pathIds": [ "home" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "f-dark" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "pass" }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "issues", "findingIds": [ "f-scroll-chrome" ] }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "f-consent-interstitial", "f-consent-semantics" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "f-targets" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "issues", "findingIds": [ "f-recovery" ] }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "f-cwv", "f-main-thread", "f-delivery", "f-unused-code" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "f-a11y-names", "f-a11y-structure", "f-a11y-targets" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "f-console", "f-assets", "f-platform-hygiene" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "f-indexing-signals", "f-structured-data" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "f-security-headers", "f-third-parties", "f-auth", "f-browser-policies" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "issues", "findingIds": [ "f-http-failure" ] }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "issues", "findingIds": [ "f-i18n-structure" ] }, { "principleId": "be-trustworthy", "expectation": "default", "status": "issues", "findingIds": [ "f-form-errors", "f-autocomplete", "f-account-flow" ] }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "f-sustainable-assets", "f-wasteful-work", "f-third-party-budget" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "issues", "findingIds": [ "f-agent-ready" ] }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "pass" } ], "paths": [ { "id": "home", "description": "Entry page and property-search start; represents global header, search and consent experience.", "url": "https://www.rightmove.co.uk/", "conditions": [ "desktop", "viewport: 360x800", "prefers-color-scheme: dark", "prefers-reduced-motion: reduce", "forced-colors: active", "keyboard focus" ], "result": "issues" }, { "id": "listing", "description": "Representative South London property-results template and list browsing journey.", "url": "https://www.rightmove.co.uk/property-for-sale/South-London.html", "conditions": [ "desktop", "viewport: 360x800", "scroll interaction", "Lighthouse mobile" ], "result": "issues" }, { "id": "detail", "description": "Representative property-detail template and route to agent contact.", "url": "https://www.rightmove.co.uk/properties/109846661", "conditions": [ "desktop", "viewport: 360x800", "no-JavaScript crawler comparison" ], "result": "issues" }, { "id": "article", "description": "Representative editorial/news content template.", "url": "https://www.rightmove.co.uk/news/articles/property-news/government-homebuying-rule-change-proposals/", "conditions": [ "desktop", "viewport: 360x800", "no-JavaScript crawler comparison" ], "result": "issues" }, { "id": "valuation", "description": "Primary valuation form surface, including empty postcode validation probe.", "url": "https://www.rightmove.co.uk/house-value.html", "conditions": [ "desktop", "viewport: 360x800", "empty-input validation" ], "result": "issues" }, { "id": "login", "description": "Authentication entry inspected for autocomplete and passkey/WebAuthn support.", "url": "https://www.rightmove.co.uk/login.html", "conditions": [ "DOM/evaluate probe" ], "result": "issues" }, { "id": "not-found", "description": "Unknown route inspected for HTTP status and recovery behavior.", "url": "https://www.rightmove.co.uk/this-route-does-not-exist-web-uplift-test", "conditions": [ "HTTP headers", "desktop screenshot" ], "result": "issues" } ], "findings": [ { "id": "f-dark", "severity": "medium", "confidence": "high", "summary": "Dark preference is ignored", "evidence": "Under emulated prefers-color-scheme: dark, the body remained rgb(255,255,255), text remained rgb(83,83,95), and computed color-scheme was normal. The dark screenshot is visually identical to the light capture.", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "user-experience", "suggestedFix": "Declare color-scheme and retint page and consent surfaces with prefers-color-scheme or light-dark().", "effort": "medium", "artifacts": [ "evidence/home-dark-probe.json", "evidence/home-dark.png" ], "pathId": "home" }, { "id": "f-scroll-chrome", "severity": "low", "confidence": "medium", "summary": "Persistent chrome does not react to scroll state", "evidence": "The listing scroll video shows the same full filter/header chrome while content moves; no progress or reduced chrome state appears.", "principleId": "provide-guided-navigation", "principleCheckId": "scroll-state-aware-chrome", "guidanceId": "shrinking-header-on-scroll", "guidanceCategory": "user-experience", "suggestedFix": "Use a compact scrolled state or a meaningful progress/position cue without obscuring results.", "effort": "medium", "artifacts": [ "evidence/listing-scroll.mp4", "evidence/listing-scroll-contact-sheet.jpg" ], "pathId": "listing" }, { "id": "f-consent-interstitial", "severity": "high", "confidence": "high", "summary": "Cookie consent blocks the entire first view", "evidence": "Desktop and 360px screenshots on every representative route show a modal covering the primary content before interaction. On mobile it occupies most of the viewport.", "principleId": "maximize-content-reduce-noise", "principleCheckId": "no-intrusive-interruptions", "guidanceId": "light-dismiss-a-dialog", "guidanceCategory": "user-experience", "suggestedFix": "Reduce the first-load interruption, keep equally prominent reject controls, and preserve access to core content where lawful.", "effort": "large", "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png", "evidence/listing-desktop.png" ], "pathId": "listing" }, { "id": "f-consent-semantics", "severity": "medium", "confidence": "high", "summary": "The modal is not implemented with the native dialog primitive", "evidence": "The DOM probe found aria-modal=1 but zero elements and zero popovers on home, listing, detail and valuation routes.", "principleId": "maximize-content-reduce-noise", "principleCheckId": "semantic-dismissible-primitives", "guidanceId": "declarative-dialog-popover-control", "guidanceCategory": "user-experience", "suggestedFix": "Use with showModal(), labelled structure, platform focus handling and an explicit dismiss path.", "effort": "medium", "artifacts": [ "evidence/home-probe.json", "evidence/listing-probe.json" ], "pathId": "listing" }, { "id": "f-targets", "severity": "medium", "confidence": "high", "summary": "Several controls have undersized pointer targets", "evidence": "The DOM probes found at least 30 visible controls below 24px in one dimension; the listing clear button also lacks an accessible name. Focus itself was visible.", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "suggestedFix": "Increase interactive hit areas to at least 24 by 24 CSS pixels, preferably 44 by 44 for primary touch controls, without reducing visible focus.", "effort": "medium", "artifacts": [ "evidence/probe-summary.txt", "evidence/lighthouse-listing.json" ], "pathId": "listing" }, { "id": "f-recovery", "severity": "high", "confidence": "high", "summary": "Unknown routes return a misleading success response", "evidence": "A deliberately unknown URL returned HTTP 200 rather than 404. The captured first view remained behind the consent interstitial, weakening error recognition and recovery.", "principleId": "support-core-task-success", "principleCheckId": "clear-system-state-and-recovery", "guidanceId": "persistent-toast-notifications", "guidanceCategory": "user-experience", "suggestedFix": "Return the correct 404 status and render a clear not-found state with search, home and back recovery actions.", "effort": "large", "artifacts": [ "evidence/404-headers.txt", "evidence/404.png" ], "pathId": "not-found" }, { "id": "f-cwv", "severity": "high", "confidence": "high", "summary": "The listing template is far outside good load thresholds", "evidence": "Lighthouse measured listing LCP at 33,720ms, TBT at 1,121.5ms and performance 0.38. Home LCP was 2,646.6ms and TBT 634.5ms.", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "performance", "guidanceCategory": "performance", "suggestedFix": "Profile the listing LCP chain, prioritize its hero/result content, and remove main-thread work until LCP and interaction latency are in the good range.", "effort": "large", "artifacts": [ "evidence/lighthouse-listing.json", "evidence/lighthouse-home.json" ], "pathId": "listing" }, { "id": "f-main-thread", "severity": "high", "confidence": "high", "summary": "Heavy script work blocks the main thread", "evidence": "Lighthouse measured 1,121.5ms TBT on listing and 634.5ms on home; the trace also recorded a 92.87ms long task.", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-main-thread", "guidanceId": "break-up-long-tasks", "guidanceCategory": "performance", "suggestedFix": "Split long tasks, defer nonessential tags and advertising, and schedule noncritical work after the primary content becomes interactive.", "effort": "large", "artifacts": [ "evidence/lighthouse-listing.json", "evidence/home-trace-summary.json" ], "pathId": "listing" }, { "id": "f-delivery", "severity": "high", "confidence": "high", "summary": "The initial network is dominated by script and third parties", "evidence": "The home HAR recorded 65 requests and 2.93MB transferred, including 1.99MB script and 2.46MB third-party bytes. It also found a parser-inserted stylesheet and script candidates plus an uncompressed JS resource.", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-script-priority", "guidanceCategory": "performance", "suggestedFix": "Shorten critical chains, defer nonessential scripts and tags, compress all text resources, and apply useful caching.", "effort": "large", "artifacts": [ "evidence/home.har", "evidence/home-summary.json" ], "pathId": "home" }, { "id": "f-unused-code", "severity": "high", "confidence": "high", "summary": "The listing ships large amounts of unused and duplicated code", "evidence": "Lighthouse estimated 1,514,686 bytes of unused JavaScript and 46,116 bytes of unused CSS; a featured-customer bundle appears repeatedly in the waste list.", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "identify-heavy-scripts", "guidanceCategory": "performance", "suggestedFix": "Code-split by route and interaction, remove duplicate injections, and load advertising/experimentation code only when needed and consented.", "effort": "large", "artifacts": [ "evidence/lighthouse-listing.json", "evidence/lighthouse-performance-details.json" ], "pathId": "listing" }, { "id": "f-a11y-names", "severity": "high", "confidence": "high", "summary": "Listing controls have broken names, roles and labels", "evidence": "Lighthouse found an unnamed clear button, an unlabeled sort select, prohibited aria-label on a roleless div, and repeated visible Contact labels that do not match their accessible names.", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "suggestedFix": "Give every control one accurate accessible name, associate visible labels with inputs, add valid roles before ARIA, and keep visible and accessible labels aligned.", "effort": "large", "artifacts": [ "evidence/lighthouse-listing.json", "evidence/lighthouse-failures.txt" ], "pathId": "listing" }, { "id": "f-a11y-structure", "severity": "medium", "confidence": "high", "summary": "Heading structure skips levels on key templates", "evidence": "Lighthouse failed heading-order on listing; its footer jumps to H4. DOM probes also show H1 followed directly by H3 on listing and article routes.", "principleId": "be-inclusive", "principleCheckId": "structure-and-focus", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "suggestedFix": "Use headings to express a sequential document outline while retaining the currently visible focus treatment.", "effort": "medium", "artifacts": [ "evidence/lighthouse-listing.json", "evidence/listing-probe.json", "evidence/article-probe.json" ], "pathId": "listing" }, { "id": "f-a11y-targets", "severity": "medium", "confidence": "high", "summary": "Mobile reflow works, but target sizing remains inadequate", "evidence": "All five mobile layouts had zero horizontal overflow and viewport scaling was allowed, but probes repeatedly found at least 30 visible controls smaller than 24px in one dimension.", "principleId": "be-inclusive", "principleCheckId": "zoom-reflow-targets-and-media", "guidanceId": "fluid-scaling", "guidanceCategory": "css", "suggestedFix": "Keep the successful reflow and enlarge hit areas; verify at 200% and 400% zoom with keyboard and touch.", "effort": "medium", "artifacts": [ "evidence/home-layout-mobile.json", "evidence/listing-layout-mobile.json", "evidence/probe-summary.txt" ], "pathId": "listing" }, { "id": "f-console", "severity": "medium", "confidence": "high", "summary": "A monitoring endpoint fails during normal load", "evidence": "Lighthouse and the HAR recorded repeated HTTP 401 failures from the Elastic APM RUM intake endpoint.", "principleId": "follow-best-practices", "principleCheckId": "no-console-errors", "guidanceId": "html", "guidanceCategory": "html", "suggestedFix": "Fix or suppress the invalid monitoring request so normal page loads produce no console/network errors.", "effort": "medium", "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-summary.json" ], "pathId": "home" }, { "id": "f-assets", "severity": "medium", "confidence": "high", "summary": "Images are unsized, oversized or distorted", "evidence": "The image probe found all four home images missing width/height, all four oversized and three legacy JPEGs; Lighthouse found multiple estate-agent logos rendered at aspect ratios that do not match source assets.", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "guidanceId": "optimize-image-priority", "guidanceCategory": "performance", "suggestedFix": "Reserve intrinsic dimensions, generate correctly cropped logo variants, serve modern responsive formats and right-size each source.", "effort": "medium", "artifacts": [ "evidence/home-images.json", "evidence/lighthouse-listing.json" ], "pathId": "listing" }, { "id": "f-platform-hygiene", "severity": "low", "confidence": "medium", "summary": "Production bundles expose broken or absent source-map links", "evidence": "Lighthouse found many large first-party scripts with missing maps and several advertised .map URLs returning 400/404.", "principleId": "follow-best-practices", "principleCheckId": "browser-platform-hygiene", "guidanceId": "html", "guidanceCategory": "html", "suggestedFix": "Publish valid restricted source maps or remove invalid sourceMappingURL references, and monitor DevTools inspector issues.", "effort": "medium", "artifacts": [ "evidence/lighthouse-listing.json", "evidence/lighthouse-failures.txt" ], "pathId": "listing" }, { "id": "f-indexing-signals", "severity": "high", "confidence": "high", "summary": "Canonical and status signals are inconsistent", "evidence": "Home and valuation probes found no canonical URL, while an unknown route returned HTTP 200. The site does provide robots.txt, a large sitemap and canonical URLs on listing/detail/article templates.", "principleId": "be-discoverable", "principleCheckId": "canonical-and-indexing-signals", "guidanceId": "html", "guidanceCategory": "html", "suggestedFix": "Add self-referencing canonicals where appropriate and return correct 404 statuses while preserving current sitemap and robots signals.", "effort": "large", "artifacts": [ "evidence/home-probe.json", "evidence/valuation-probe.json", "evidence/404-headers.txt", "evidence/robots.txt" ], "pathId": "not-found" }, { "id": "f-structured-data", "severity": "medium", "confidence": "high", "summary": "Commercial entity pages lack structured data", "evidence": "The property detail and listing probes found zero JSON-LD blocks; home also lacked Organization/WebSite JSON-LD. The article template was the only sampled route with JSON-LD.", "principleId": "be-discoverable", "principleCheckId": "structured-and-shareable-metadata", "guidanceId": "html", "guidanceCategory": "html", "suggestedFix": "Add accurate schema.org WebSite/Organization, ItemList and real-estate entity markup plus complete Open Graph metadata that matches visible content.", "effort": "medium", "artifacts": [ "evidence/detail-probe.json", "evidence/listing-probe.json", "evidence/article-probe.json" ], "pathId": "listing" }, { "id": "f-security-headers", "severity": "high", "confidence": "high", "summary": "Core transport and content defenses are absent", "evidence": "The headers primitive confirmed HTTPS but found no CSP, HSTS or X-Content-Type-Options. The cookies primitive reported all eight observed cookies without Secure.", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "guidanceCategory": "security", "suggestedFix": "Set HSTS and nosniff, deploy a restrictive nonce/hash CSP, and mark every HTTPS cookie Secure with appropriate SameSite and HttpOnly attributes.", "effort": "large", "artifacts": [ "evidence/home-headers.json", "evidence/home-cookies.json" ], "pathId": "home" }, { "id": "f-third-parties", "severity": "high", "confidence": "high", "summary": "Tracking starts with a very large third-party footprint", "evidence": "Before consent choice, the HAR recorded 49 third-party requests and 2.46MB third-party transfer. The tracker probe found 11 third-party origins and five known tracker domains; the dialog names 215 partners.", "principleId": "be-private-and-secure", "principleCheckId": "data-minimisation-and-third-parties", "guidanceId": "privacy", "guidanceCategory": "privacy", "suggestedFix": "Default to the minimum necessary vendors and events, prevent nonessential tag downloads before consent, and batch the remaining analytics.", "effort": "large", "artifacts": [ "evidence/home-summary.json", "evidence/home-trackers.json", "evidence/home-desktop.png" ], "pathId": "home" }, { "id": "f-auth", "severity": "medium", "confidence": "high", "summary": "Authentication lacks modern autofill and passkey signals", "evidence": "The login probe found an email input with no autocomplete token and no passkey/WebAuthn text or code signal. No permission prompt appeared on sampled page loads.", "principleId": "be-private-and-secure", "principleCheckId": "in-context-permissions-and-modern-auth", "guidanceId": "passkeys", "guidanceCategory": "security", "suggestedFix": "Add autocomplete=username/email, offer passkey registration and conditional authentication, and continue requesting permissions only after a user action.", "effort": "medium", "artifacts": [ "evidence/login-probe.json" ], "pathId": "login" }, { "id": "f-browser-policies", "severity": "high", "confidence": "high", "summary": "Browser-enforced defensive policies are missing", "evidence": "Headers inspection found no frame protection, Referrer-Policy or Permissions-Policy in addition to missing CSP and HSTS. Several first-party cookies use SameSite=None without Secure.", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "guidanceId": "security", "guidanceCategory": "security", "suggestedFix": "Set frame-ancestors, Referrer-Policy and a least-privilege Permissions-Policy; remove unnecessary SameSite=None cookies and evaluate Trusted Types.", "effort": "large", "artifacts": [ "evidence/home-headers.json", "evidence/home-cookies.json" ], "pathId": "home" }, { "id": "f-http-failure", "severity": "high", "confidence": "high", "summary": "HTTP failure semantics are not resilient", "evidence": "The unknown-route test returned 200 OK rather than a 404 status, so caches, crawlers and users cannot reliably distinguish failure from success.", "principleId": "be-resilient", "principleCheckId": "network-and-http-failure-states", "guidanceId": "persistent-toast-notifications", "guidanceCategory": "user-experience", "suggestedFix": "Return accurate HTTP statuses and a server-rendered recovery page that remains useful without JavaScript.", "effort": "large", "artifacts": [ "evidence/404-headers.txt", "evidence/404.png" ], "pathId": "not-found" }, { "id": "f-i18n-structure", "severity": "medium", "confidence": "high", "summary": "Language and directional foundations are inconsistent", "evidence": "Sampled pages use en, en-GB and en-US despite UK content. Inline-CSS probing found logical-property use on home but not on listing, detail, article or valuation templates.", "principleId": "be-internationalised", "principleCheckId": "lang-dir-and-logical-properties", "guidanceId": "translator", "guidanceCategory": "internationalization", "suggestedFix": "Standardize accurate lang values per locale, declare direction where needed and migrate reusable layout spacing to logical properties.", "effort": "medium", "artifacts": [ "evidence/home-probe.json", "evidence/listing-probe.json", "evidence/article-probe.json" ], "pathId": "listing" }, { "id": "f-form-errors", "severity": "medium", "confidence": "high", "summary": "The valuation postcode field has no enforceable empty-state feedback", "evidence": "The valuation probe found postcodeInput is not required; its empty value reports checkValidity() true, aria-invalid is absent, and no alert/error text was present.", "principleId": "be-trustworthy", "principleCheckId": "humane-error-handling", "guidanceId": "forms", "guidanceCategory": "forms", "suggestedFix": "Make the requirement programmatic, validate after interaction, focus the field on submission failure and announce a specific error through a live region.", "effort": "medium", "artifacts": [ "evidence/valuation-invalid.json", "evidence/valuation-probe.json" ], "pathId": "home" }, { "id": "f-autocomplete", "severity": "medium", "confidence": "high", "summary": "Key inputs opt out of useful browser assistance", "evidence": "The login email field has an empty autocomplete value, the valuation postcode has none, and location search explicitly uses autocomplete=off.", "principleId": "be-trustworthy", "principleCheckId": "trustworthy-input-assistance", "guidanceId": "autofill-sign-in-form", "guidanceCategory": "forms", "suggestedFix": "Apply accurate autocomplete tokens such as email/username and postal-code; do not disable browser autofill where it helps users.", "effort": "medium", "artifacts": [ "evidence/login-probe.json", "evidence/valuation-probe.json", "evidence/home-probe.json" ], "pathId": "login" }, { "id": "f-account-flow", "severity": "medium", "confidence": "high", "summary": "The sign-in entry does not advertise phishing-resistant authentication", "evidence": "The login surface offers email continuation only; the probe found no WebAuthn/passkey signal and the email input lacks autocomplete. Actual account changes were excluded to avoid side effects.", "principleId": "be-trustworthy", "principleCheckId": "safe-commercial-and-account-flows", "guidanceId": "passkey-authentication", "guidanceCategory": "security", "suggestedFix": "Offer passkeys alongside recovery-safe email sign-in and make account/cancellation commitments explicit before any irreversible action.", "effort": "medium", "artifacts": [ "evidence/login-probe.json" ], "pathId": "login" }, { "id": "f-sustainable-assets", "severity": "medium", "confidence": "high", "summary": "Asset delivery wastes image bytes", "evidence": "All four probed home images were oversized for their rendered size, four lacked intrinsic dimensions and three used JPEG; below-fold images were not lazy-loaded.", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "deliver-optimized-decorative-images", "guidanceCategory": "performance", "suggestedFix": "Generate modern responsive variants, preserve dimensions and lazy-load below-fold media.", "effort": "medium", "artifacts": [ "evidence/home-images.json" ], "pathId": "home" }, { "id": "f-wasteful-work", "severity": "high", "confidence": "high", "summary": "Large unused scripts and failed telemetry consume resources", "evidence": "Lighthouse estimated 1.51MB unused JS on listing, while home loads repeated analytics/advertising tags and sends APM requests that fail with 401.", "principleId": "be-sustainable", "principleCheckId": "no-wasteful-work", "guidanceId": "efficient-background-processing", "guidanceCategory": "performance", "suggestedFix": "Remove duplicate/vendor work, conditionally import optional features, defer background processing and stop failed telemetry retries.", "effort": "large", "artifacts": [ "evidence/lighthouse-listing.json", "evidence/home-summary.json" ], "pathId": "listing" }, { "id": "f-third-party-budget", "severity": "high", "confidence": "high", "summary": "Third-party code is disproportionate to first-view value", "evidence": "On home, 49 of 65 requests and 2.46 of 2.93MB transferred were third-party; Google Tag Manager alone accounted for about 1.25MB.", "principleId": "be-sustainable", "principleCheckId": "third-party-and-media-budget", "guidanceId": "deprioritize-background-fetches", "guidanceCategory": "performance", "suggestedFix": "Set a third-party byte/request budget, load vendors after consent and user need, and remove redundant tag containers.", "effort": "large", "artifacts": [ "evidence/home-summary.json", "evidence/home-trackers.json" ], "pathId": "home" }, { "id": "f-agent-ready", "severity": "low", "confidence": "medium", "summary": "Property capabilities are not exposed in a structured agent-facing form", "evidence": "The sampled routes expose no WebMCP/agent tool signals, property pages lack JSON-LD, robots.txt blocks GPTBot, and Lighthouse agentic-browsing scored 0.33 on listing.", "principleId": "be-agent-ready", "principleCheckId": "structured-agent-capabilities", "guidanceId": "webmcp", "guidanceCategory": "ai", "suggestedFix": "If agent access is an intended channel, expose narrowly scoped search/save/contact tools with confirmation and machine-readable property metadata.", "effort": "medium", "artifacts": [ "evidence/listing-probe.json", "evidence/robots.txt", "evidence/lighthouse-listing.json" ], "pathId": "listing" } ], "taskList": [ { "id": "task-1", "title": "Cookie consent blocks the entire first view", "priority": 1, "findingIds": [ "f-consent-interstitial" ], "guidanceId": "light-dismiss-a-dialog", "status": "open" }, { "id": "task-2", "title": "Unknown routes return a misleading success response", "priority": 2, "findingIds": [ "f-recovery" ], "guidanceId": "persistent-toast-notifications", "status": "open" }, { "id": "task-3", "title": "The listing template is far outside good load thresholds", "priority": 3, "findingIds": [ "f-cwv" ], "guidanceId": "performance", "status": "open" }, { "id": "task-4", "title": "Heavy script work blocks the main thread", "priority": 4, "findingIds": [ "f-main-thread" ], "guidanceId": "break-up-long-tasks", "status": "open" }, { "id": "task-5", "title": "The initial network is dominated by script and third parties", "priority": 5, "findingIds": [ "f-delivery" ], "guidanceId": "optimize-script-priority", "status": "open" }, { "id": "task-6", "title": "The listing ships large amounts of unused and duplicated code", "priority": 6, "findingIds": [ "f-unused-code" ], "guidanceId": "identify-heavy-scripts", "status": "open" }, { "id": "task-7", "title": "Listing controls have broken names, roles and labels", "priority": 7, "findingIds": [ "f-a11y-names" ], "guidanceId": "accessibility", "status": "open" }, { "id": "task-8", "title": "Canonical and status signals are inconsistent", "priority": 8, "findingIds": [ "f-indexing-signals" ], "guidanceId": "html", "status": "open" }, { "id": "task-9", "title": "Core transport and content defenses are absent", "priority": 9, "findingIds": [ "f-security-headers" ], "guidanceId": "security", "status": "open" }, { "id": "task-10", "title": "Tracking starts with a very large third-party footprint", "priority": 10, "findingIds": [ "f-third-parties" ], "guidanceId": "privacy", "status": "open" }, { "id": "task-11", "title": "Browser-enforced defensive policies are missing", "priority": 11, "findingIds": [ "f-browser-policies" ], "guidanceId": "security", "status": "open" }, { "id": "task-12", "title": "HTTP failure semantics are not resilient", "priority": 12, "findingIds": [ "f-http-failure" ], "guidanceId": "persistent-toast-notifications", "status": "open" }, { "id": "task-13", "title": "Large unused scripts and failed telemetry consume resources", "priority": 13, "findingIds": [ "f-wasteful-work" ], "guidanceId": "efficient-background-processing", "status": "open" }, { "id": "task-14", "title": "Third-party code is disproportionate to first-view value", "priority": 14, "findingIds": [ "f-third-party-budget" ], "guidanceId": "deprioritize-background-fetches", "status": "open" }, { "id": "task-15", "title": "Dark preference is ignored", "priority": 15, "findingIds": [ "f-dark" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "task-16", "title": "The modal is not implemented with the native dialog primitive", "priority": 16, "findingIds": [ "f-consent-semantics" ], "guidanceId": "declarative-dialog-popover-control", "status": "open" }, { "id": "task-17", "title": "Several controls have undersized pointer targets", "priority": 17, "findingIds": [ "f-targets" ], "guidanceId": "accessibility", "status": "open" }, { "id": "task-18", "title": "Heading structure skips levels on key templates", "priority": 18, "findingIds": [ "f-a11y-structure" ], "guidanceId": "accessibility", "status": "open" }, { "id": "task-19", "title": "Mobile reflow works, but target sizing remains inadequate", "priority": 19, "findingIds": [ "f-a11y-targets" ], "guidanceId": "fluid-scaling", "status": "open" }, { "id": "task-20", "title": "A monitoring endpoint fails during normal load", "priority": 20, "findingIds": [ "f-console" ], "guidanceId": "html", "status": "open" }, { "id": "task-21", "title": "Images are unsized, oversized or distorted", "priority": 21, "findingIds": [ "f-assets" ], "guidanceId": "optimize-image-priority", "status": "open" }, { "id": "task-22", "title": "Commercial entity pages lack structured data", "priority": 22, "findingIds": [ "f-structured-data" ], "guidanceId": "html", "status": "open" }, { "id": "task-23", "title": "Authentication lacks modern autofill and passkey signals", "priority": 23, "findingIds": [ "f-auth" ], "guidanceId": "passkeys", "status": "open" }, { "id": "task-24", "title": "Language and directional foundations are inconsistent", "priority": 24, "findingIds": [ "f-i18n-structure" ], "guidanceId": "translator", "status": "open" }, { "id": "task-25", "title": "The valuation postcode field has no enforceable empty-state feedback", "priority": 25, "findingIds": [ "f-form-errors" ], "guidanceId": "forms", "status": "open" }, { "id": "task-26", "title": "Key inputs opt out of useful browser assistance", "priority": 26, "findingIds": [ "f-autocomplete" ], "guidanceId": "autofill-sign-in-form", "status": "open" }, { "id": "task-27", "title": "The sign-in entry does not advertise phishing-resistant authentication", "priority": 27, "findingIds": [ "f-account-flow" ], "guidanceId": "passkey-authentication", "status": "open" }, { "id": "task-28", "title": "Asset delivery wastes image bytes", "priority": 28, "findingIds": [ "f-sustainable-assets" ], "guidanceId": "deliver-optimized-decorative-images", "status": "open" }, { "id": "task-29", "title": "Persistent chrome does not react to scroll state", "priority": 29, "findingIds": [ "f-scroll-chrome" ], "guidanceId": "shrinking-header-on-scroll", "status": "open" }, { "id": "task-30", "title": "Production bundles expose broken or absent source-map links", "priority": 30, "findingIds": [ "f-platform-hygiene" ], "guidanceId": "html", "status": "open" }, { "id": "task-31", "title": "Property capabilities are not exposed in a structured agent-facing form", "priority": 31, "findingIds": [ "f-agent-ready" ], "guidanceId": "webmcp", "status": "open" } ], "budget": { "pathCount": 7, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-21T02-23-46-685Z" }