{ "url": "https://cookpad.com", "auditedAt": "2026-07-21T20:26:26.773Z", "mode": "report", "status": "completed", "statusDetail": "Coverage complete across 58 checks and six representative public paths. Auth-provider completion, post-auth account management, and transactions were explicitly excluded from paths but did not leave any registered check unjudged.", "page": { "appType": "mpa", "framework": "Server-rendered Rails/Turbo-style multi-page application", "notes": "External URL redirects to /uk. Public recipe content is server rendered. Coverage includes home, search listing, recipe detail, auth entry, premium entry, and 404 recovery; localized duplicates, post-auth authoring/account pages, third-party identity providers, and payment execution were not covered." }, "evidenceUsed": [ "screenshot", "dom", "layout-metrics", "evaluate-probe", "discoverability", "trace", "har", "headers", "cookies", "trackers", "secrets", "images", "heap-summary", "Lighthouse", "raw HTTP fetch" ], "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": "screenshot", "path": "evidence/home-desktop.png", "caption": "Home at 1440×1000, initial guest state.", "condition": "desktop", "findingIds": [ "F06", "F07", "F20" ] }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "Home at 390×844 with consent panel.", "condition": "mobile", "findingIds": [ "F04", "F07", "F08" ] }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "Home under prefers-color-scheme: dark; palette remains light.", "condition": "prefers-color-scheme: dark", "findingIds": [ "F01" ] }, { "type": "screenshot", "path": "evidence/search-desktop.png", "caption": "Chicken search-results template.", "condition": "desktop", "findingIds": [] }, { "type": "screenshot", "path": "evidence/recipe-desktop.png", "caption": "Recipe detail template with ingredients and steps.", "condition": "desktop", "findingIds": [] }, { "type": "screenshot", "path": "evidence/login-mobile.png", "caption": "Authentication choices.", "condition": "mobile", "findingIds": [ "F21" ] }, { "type": "screenshot", "path": "evidence/premium-desktop.png", "caption": "Premium/listing guest surface.", "condition": "desktop", "findingIds": [] }, { "type": "screenshot", "path": "evidence/404-mobile.png", "caption": "Branded recovery state.", "condition": "mobile", "findingIds": [] }, { "type": "layout", "path": "evidence/home-mobile-layout.json", "caption": "Home mobile overflow/CLS/long-task observation.", "condition": "390×844", "findingIds": [ "F16" ] }, { "type": "layout", "path": "evidence/search-mobile-layout.json", "caption": "Search mobile overflow/CLS/long-task observation.", "condition": "390×844", "findingIds": [] }, { "type": "layout", "path": "evidence/recipe-mobile-layout.json", "caption": "Recipe mobile overflow/CLS/long-task observation.", "condition": "390×844", "findingIds": [] }, { "type": "discoverability", "path": "evidence/home-discoverability.json", "caption": "Home raw-HTML/rendered comparison.", "condition": "JavaScript on/off", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-discoverability-rendered.png", "caption": "Rendered home crawler comparison.", "condition": "JavaScript enabled", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-discoverability-crawler.png", "caption": "Crawler home comparison.", "condition": "JavaScript disabled", "findingIds": [] }, { "type": "discoverability", "path": "evidence/recipe-discoverability.json", "caption": "Recipe raw-HTML/rendered comparison.", "condition": "JavaScript on/off", "findingIds": [] }, { "type": "screenshot", "path": "evidence/recipe-discoverability-rendered.png", "caption": "Rendered recipe crawler comparison.", "condition": "JavaScript enabled", "findingIds": [] }, { "type": "screenshot", "path": "evidence/recipe-discoverability-crawler.png", "caption": "Crawler recipe comparison.", "condition": "JavaScript disabled", "findingIds": [] }, { "type": "trace", "path": "evidence/home-trace.json", "caption": "DevTools performance trace for home load.", "condition": "load", "findingIds": [] }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "Compact home trace metrics.", "condition": "load", "findingIds": [ "F09" ] }, { "type": "har", "path": "evidence/home.har", "caption": "Home network archive.", "condition": "load", "findingIds": [ "F11" ] }, { "type": "har-summary", "path": "evidence/home-summary.json", "caption": "Compact home network signals.", "condition": "load", "findingIds": [ "F11", "F12", "F20", "F24" ] }, { "type": "lighthouse", "path": "evidence/lighthouse-home.json", "caption": "Lighthouse home report.", "condition": "mobile", "findingIds": [] }, { "type": "lighthouse", "path": "evidence/lighthouse-recipe.json", "caption": "Lighthouse recipe report.", "condition": "mobile", "findingIds": [] }, { "type": "heap", "path": "evidence/heap-baseline.json", "caption": "Search baseline heap summary.", "condition": "baseline", "findingIds": [ "F25" ] }, { "type": "heap", "path": "evidence/heap-after-one-scroll.json", "caption": "Search heap after one bottom traversal.", "condition": "one traversal", "findingIds": [ "F25" ] }, { "type": "heap", "path": "evidence/heap-post-scroll.json", "caption": "Search heap after ten traversals.", "condition": "ten traversals", "findingIds": [ "F25" ] }, { "type": "other", "path": "evidence/headers.json", "caption": "Security response headers.", "condition": "load", "findingIds": [ "F19", "F22" ] }, { "type": "other", "path": "evidence/cookies.json", "caption": "Cookie attributes.", "condition": "load", "findingIds": [] }, { "type": "other", "path": "evidence/trackers.json", "caption": "Third-party tracker inventory.", "condition": "load", "findingIds": [ "F20", "F24" ] }, { "type": "other", "path": "evidence/secrets.json", "caption": "Client-side secret scan.", "condition": "load", "findingIds": [] }, { "type": "other", "path": "evidence/home-images.json", "caption": "Home image diagnostics.", "condition": "load", "findingIds": [ "F17", "F23" ] }, { "type": "other", "path": "evidence/recipe-images.json", "caption": "Recipe image diagnostics.", "condition": "load", "findingIds": [ "F23" ] }, { "type": "other", "path": "evidence/home-platform-probe.json", "caption": "Document/platform feature probe.", "condition": "load", "findingIds": [ "F01", "F03", "F05", "F06", "F07", "F15", "F18" ] }, { "type": "other", "path": "evidence/robots.txt", "caption": "Robots policy including AI crawler rules.", "condition": "raw fetch", "findingIds": [] }, { "type": "other", "path": "evidence/sitemap-headers.txt", "caption": "HTTP response for /sitemap.xml.", "condition": "raw fetch", "findingIds": [ "F18" ] }, { "type": "other", "path": "evidence/contrast-probe.json", "caption": "Supporting probe or compact evidence summary.", "findingIds": [ "F02" ] }, { "type": "other", "path": "evidence/lighthouse-home-summary.json", "caption": "Supporting probe or compact evidence summary.", "findingIds": [ "F02", "F04", "F08", "F09", "F10", "F13", "F14", "F16", "F18" ] }, { "type": "other", "path": "evidence/home-dom.json", "caption": "Supporting probe or compact evidence summary.", "findingIds": [ "F05" ] }, { "type": "other", "path": "evidence/lighthouse-recipe-summary.json", "caption": "Supporting probe or compact evidence summary.", "findingIds": [ "F09", "F10", "F13", "F14", "F15", "F17" ] }, { "type": "other", "path": "evidence/login-recon.json", "caption": "Supporting probe or compact evidence summary.", "findingIds": [ "F21" ] }, { "type": "other", "path": "evidence/reduced-motion-probe.json", "caption": "Supporting probe or compact evidence summary.", "findingIds": [] }, { "type": "other", "path": "evidence/search-recon.json", "caption": "Supporting probe or compact evidence summary.", "findingIds": [] }, { "type": "other", "path": "evidence/recipe-recon.json", "caption": "Supporting probe or compact evidence summary.", "findingIds": [] }, { "type": "other", "path": "evidence/404-recon.json", "caption": "Supporting probe or compact evidence summary.", "findingIds": [] }, { "type": "other", "path": "evidence/home-recon.json", "caption": "Supporting probe or compact evidence summary.", "findingIds": [] }, { "type": "other", "path": "evidence/pwa-probe.json", "caption": "Supporting probe or compact evidence summary.", "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": "Direct evidence from evidence/home-dark.png, evidence/home-platform-probe.json.", "evidence": "The dark-condition screenshot is pixel-identical in palette to the light screenshot, and the platform probe found no prefers-color-scheme rule or color-scheme declaration.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dark.png", "evidence/home-platform-probe.json" ], "findingIds": [ "F01" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "high", "method": "Emulated prefers-reduced-motion: reduce and inspected document animations.", "evidence": "The preference matched and getAnimations() returned no active animations, so no non-essential motion persisted.", "pathIds": [ "home" ], "artifacts": [ "evidence/reduced-motion-probe.json" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/contrast-probe.json, evidence/lighthouse-home-summary.json.", "evidence": "The platform probe found no prefers-contrast or forced-colors rules; Lighthouse also measured text/button contrast as low as 2.13:1.", "pathIds": [ "home" ], "artifacts": [ "evidence/contrast-probe.json", "evidence/lighthouse-home-summary.json" ], "findingIds": [ "F02" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/home-platform-probe.json.", "evidence": "The live CSS probe found no view-transition declarations and no active transition animations on the representative home surface.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-platform-probe.json" ], "findingIds": [ "F03" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "pass", "confidence": "medium", "method": "Inspected live CSS and runtime animations for scroll-linked effects.", "evidence": "No scroll-linked/parallax animation was present, so there was no main-thread scroll-animation anti-pattern to replace.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-platform-probe.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/home-mobile.png, evidence/lighthouse-home-summary.json.", "evidence": "The mobile screenshot shows an interactive carousel; CSS had no scroll-snap, while Lighthouse measured its pagination controls at only 8–10px.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile.png", "evidence/lighthouse-home-summary.json" ], "findingIds": [ "F04" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/home-dom.json, evidence/home-platform-probe.json.", "evidence": "DOM evidence shows a sticky header, but the CSS probe found no scroll-state query, scroll timeline, or progress affordance.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dom.json", "evidence/home-platform-probe.json" ], "findingIds": [ "F05" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "not-applicable", "confidence": "high", "method": "Inspected representative DOM for positioned transient UI.", "evidence": "No tooltip, popover, or edge-positioned menu requiring anchor positioning was present in the exercised guest paths.", "reason": "No tooltip, popover, or edge-positioned menu requiring anchor positioning was present in the exercised guest paths." }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "pass", "confidence": "medium", "method": "Visually inspected navigation, recipe drill-down, carousel state and 404 recovery.", "evidence": "Selected navigation and carousel pagination communicate state; recipe and recovery destinations preserve a clear visual destination.", "pathIds": [ "home", "recipe", "not-found" ], "artifacts": [ "evidence/home-desktop.png", "evidence/recipe-desktop.png", "evidence/404-mobile.png" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "pass", "confidence": "medium", "method": "Captured first-load desktop/mobile states.", "evidence": "The consent panel occupies part of the viewport but provides equally visible accept/refuse actions and does not replace the page with a full-screen interstitial.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/home-desktop.png, evidence/home-platform-probe.json.", "evidence": "The loaded page exposes no dialog, popover, or details elements even though the fixed cookie consent panel and mobile navigation are dismissible transient UI.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-platform-probe.json" ], "findingIds": [ "F06" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "pass", "confidence": "high", "method": "Visual review of home, search and recipe templates.", "evidence": "Content dominates the primary pane; recipe ingredients and steps are presented with minimal framing and no decorative application borders.", "pathIds": [ "home", "search", "recipe" ], "artifacts": [ "evidence/home-desktop.png", "evidence/search-desktop.png", "evidence/recipe-desktop.png" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "pass", "confidence": "high", "method": "Ran layout primitive at 390×844 on home, search, and recipe.", "evidence": "All three report scrollWidth=clientWidth=390, viewport meta present, horizontalOverflowPx=0.", "pathIds": [ "home", "search", "recipe" ], "artifacts": [ "evidence/home-mobile-layout.json", "evidence/search-mobile-layout.json", "evidence/recipe-mobile-layout.json" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/home-mobile.png, evidence/home-desktop.png, evidence/home-platform-probe.json.", "evidence": "The representative components visibly rearrange between mobile and desktop, but live CSS inspection found no @container rules or container-type declarations.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-desktop.png", "evidence/home-platform-probe.json" ], "findingIds": [ "F07" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/lighthouse-home-summary.json, evidence/home-mobile.png.", "evidence": "Lighthouse measured four mobile pagination buttons at 8–10px with less than 24px safe clickable space. Keyboard focus itself was visible.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/home-mobile.png" ], "findingIds": [ "F08" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "high", "method": "Inspected first viewports and labels across discovery and detail.", "evidence": "Home exposes recipe/ingredient search immediately; search identifies Chicken and result count; recipe leads with title, image, ingredients and steps.", "pathIds": [ "home", "search", "recipe" ], "artifacts": [ "evidence/home-desktop.png", "evidence/search-recon.json", "evidence/recipe-desktop.png" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "pass", "confidence": "high", "method": "Completed the guest search-to-result-to-recipe journey using a crawlable search URL and recipe link.", "evidence": "The Chicken listing returned 76,210 results and the selected Butter Chicken Curry recipe exposed complete ingredients and eight steps without an account wall.", "pathIds": [ "search", "recipe" ], "artifacts": [ "evidence/search-recon.json", "evidence/recipe-recon.json" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "pass", "confidence": "high", "method": "Loaded an unknown route and inspected recovery controls.", "evidence": "The 404 state clearly says the page was not found and offers four current recipe links plus a home link, rather than a blank shell.", "pathIds": [ "not-found" ], "artifacts": [ "evidence/404-mobile.png", "evidence/404-recon.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/lighthouse-home-summary.json, evidence/lighthouse-recipe-summary.json, evidence/home-trace-summary.json.", "evidence": "Mobile Lighthouse measured home LCP 5.4s and CLS 0.17; recipe LCP 3.6s and CLS 0.16. Both exceed good thresholds.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/lighthouse-recipe-summary.json", "evidence/home-trace-summary.json" ], "findingIds": [ "F09" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/lighthouse-home-summary.json, evidence/lighthouse-recipe-summary.json.", "evidence": "Lighthouse recorded CLS 0.170 on home and 0.160 on recipe even though the later five-second layout observer saw no additional shifts.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/lighthouse-recipe-summary.json" ], "findingIds": [ "F10" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "pass", "confidence": "high", "method": "Captured trace and Lighthouse TBT; observed long tasks in mobile layouts.", "evidence": "Trace reports zero long tasks and 0ms TBT; Lighthouse reports about 20ms TBT on both home and recipe. Search had one isolated 92ms task but no sustained blocking.", "pathIds": [ "home", "search", "recipe" ], "artifacts": [ "evidence/home-trace-summary.json", "evidence/lighthouse-home-summary.json", "evidence/lighthouse-recipe-summary.json", "evidence/search-mobile-layout.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/home-summary.json, evidence/home.har.", "evidence": "The HAR recorded 930KB across 64 requests; GTM took 1.14s and 186KB, Facebook 108KB, and two Typekit stylesheets were parser-inserted at VeryHigh priority.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/home.har" ], "findingIds": [ "F11" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/home-summary.json.", "evidence": "Scripts account for 461KB; GTM and Facebook alone transfer about 294KB, while the home page’s main task is simple recipe discovery.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json" ], "findingIds": [ "F12" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/lighthouse-home-summary.json, evidence/lighthouse-recipe-summary.json.", "evidence": "Lighthouse found invalid tablist/tab relationships, unnamed banner links/images on home, an unnamed recipe back button, and aria-hidden content containing a focusable app link.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/lighthouse-recipe-summary.json" ], "findingIds": [ "F13" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/lighthouse-home-summary.json, evidence/lighthouse-recipe-summary.json.", "evidence": "Lighthouse measured white on Cookpad orange at 2.13:1, orange text on the recipe surface at 2.07:1, and secondary text at 2.88–4.42:1.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/lighthouse-recipe-summary.json" ], "findingIds": [ "F14" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/home-platform-probe.json, evidence/lighthouse-recipe-summary.json.", "evidence": "Both Lighthouse runs report no main landmark; home contains two H1s, and recipe ingredients are li elements overridden with role=paragraph, invalidating their list.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-platform-probe.json", "evidence/lighthouse-recipe-summary.json" ], "findingIds": [ "F15" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "pass", "confidence": "medium", "method": "Visually inspected body, headings, recipe lists and responsive wrapping.", "evidence": "Primary recipe and search text is comfortably sized and wraps without clipping; the separate colour-token failures are recorded under sufficient-contrast.", "pathIds": [ "home", "search", "recipe" ], "artifacts": [ "evidence/home-mobile.png", "evidence/recipe-desktop.png" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/home-mobile-layout.json, evidence/lighthouse-home-summary.json.", "evidence": "The 390px layouts had no horizontal overflow, but Lighthouse’s target-size audit found 8–10px pagination buttons with insufficient spacing.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile-layout.json", "evidence/lighthouse-home-summary.json" ], "findingIds": [ "F16" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "pass", "confidence": "high", "method": "Ran Lighthouse best-practices audits on home and recipe.", "evidence": "No console-error or uncaught-exception failure was reported; overall best-practices scores were 1.00 and 0.96.", "pathIds": [ "home", "recipe" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/lighthouse-recipe.json" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/home-images.json, evidence/lighthouse-recipe-summary.json.", "evidence": "The image probes found two home images without dimensions, and Lighthouse found a recipe avatar displayed at a distorted 14×16 ratio instead of 1:1.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-images.json", "evidence/lighthouse-recipe-summary.json" ], "findingIds": [ "F17" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "pass", "confidence": "medium", "method": "Reviewed Lighthouse best-practices failures and live page behaviour.", "evidence": "No deprecated API, vulnerable library, paste prevention, source-map, intrusive permission prompt, or BFCache issue was reported on exercised public paths.", "pathIds": [ "home", "recipe", "auth" ], "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/lighthouse-recipe-summary.json", "evidence/login-recon.json" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "high", "method": "Read title and description on home and recipe.", "evidence": "Home and recipe have descriptive unique titles and non-empty meta descriptions matching their visible purpose.", "pathIds": [ "home", "recipe" ], "artifacts": [ "evidence/home-platform-probe.json", "evidence/recipe-recon.json" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "pass", "confidence": "high", "method": "Inspected href links, viewport metadata, robots.txt and no-JS output.", "evidence": "Primary navigation/search/recipe links are real hrefs, viewport meta is valid, default robots allows public content, and raw HTML contains the core content.", "pathIds": [ "home", "search", "recipe" ], "artifacts": [ "evidence/home-recon.json", "evidence/robots.txt", "evidence/home-discoverability.json", "evidence/recipe-discoverability.json" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/home-platform-probe.json, evidence/lighthouse-home-summary.json, evidence/sitemap-headers.txt.", "evidence": "The UK page declares canonical https://cookpad.com/eng, Lighthouse flags it invalid, and https://cookpad.com/sitemap.xml returns HTTP 404. Recipe canonical and metadata are valid.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-platform-probe.json", "evidence/lighthouse-home-summary.json", "evidence/sitemap-headers.txt" ], "findingIds": [ "F18" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "pass", "confidence": "high", "method": "Parsed recipe JSON-LD and Open Graph metadata.", "evidence": "Recipe exposes schema.org Recipe with instructions plus accurate og:title, description, image, URL and article type.", "pathIds": [ "recipe" ], "artifacts": [ "evidence/recipe-recon.json" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/headers.json.", "evidence": "The headers primitive confirms HTTPS, HSTS, nosniff and SAMEORIGIN, but no Content-Security-Policy header.", "pathIds": [ "home" ], "artifacts": [ "evidence/headers.json" ], "findingIds": [ "F19" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/trackers.json, evidence/home-summary.json, evidence/home-desktop.png.", "evidence": "A fresh guest load requested Google Tag Manager and Facebook tracking code; tracker evidence lists six third-party origins and the HAR attributes about 294KB to GTM/Facebook.", "pathIds": [ "home" ], "artifacts": [ "evidence/trackers.json", "evidence/home-summary.json", "evidence/home-desktop.png" ], "findingIds": [ "F20" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/login-mobile.png, evidence/login-recon.json.", "evidence": "The auth surface offers Google, Apple, Facebook, and Email; the inspected markup exposes no WebAuthn/passkey path. No permission prompt fired on load.", "pathIds": [ "auth" ], "artifacts": [ "evidence/login-mobile.png", "evidence/login-recon.json" ], "findingIds": [ "F21" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/headers.json.", "evidence": "The headers primitive found HSTS, clickjacking protection and Referrer-Policy, but no Permissions-Policy header.", "pathIds": [ "home" ], "artifacts": [ "evidence/headers.json" ], "findingIds": [ "F22" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "pass", "confidence": "high", "method": "Compared raw server HTML with rendered DOM and crawler screenshots.", "evidence": "Home raw HTML retains 100% of rendered content tokens and recipe retains 78%, including title, H1 and description; neither is a JS shell.", "pathIds": [ "home", "recipe" ], "artifacts": [ "evidence/home-discoverability.json", "evidence/recipe-discoverability.json" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "pass", "confidence": "medium", "method": "Inspected mobile/desktop overlays and exercised long listings.", "evidence": "Consent, navigation, recipe actions and long lists remained within viewport bounds; no clipped overlay or blank runtime state appeared.", "pathIds": [ "home", "search", "recipe" ], "artifacts": [ "evidence/home-mobile.png", "evidence/recipe-mobile-layout.json" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "not-applicable", "confidence": "high", "method": "Inspected web manifest and service-worker registration.", "evidence": "Cookpad presents the web surface as a content site and explicitly prefers related native applications; the manifest exists but no service worker is registered, so offline web-app installability was judged out of scope.", "reason": "Cookpad presents the web surface as a content site and explicitly prefers related native applications; the manifest exists but no service worker is registered, so offline web-app installability was judged out of scope.", "artifacts": [ "evidence/pwa-probe.json" ] }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "pass", "confidence": "high", "method": "Requested a representative 404 route.", "evidence": "The server returns a branded explanatory state with useful recipe recovery links.", "pathIds": [ "not-found" ], "artifacts": [ "evidence/404-mobile.png", "evidence/404-recon.json" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "pass", "confidence": "high", "method": "Inspected document locale/direction and localized community surfaces.", "evidence": "Home uses lang=en-GB dir=ltr, recipe uses lang=en dir=ltr, and the site exposes many language/region variants including RTL locales.", "pathIds": [ "home", "recipe" ], "artifacts": [ "evidence/home-platform-probe.json", "evidence/recipe-recon.json" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "pass", "confidence": "medium", "method": "Inspected localized date and regional content rendering.", "evidence": "Recipe renders “19 July 2026” from a machine-readable UTC datetime through a localtime controller; UK locale and region-specific copy are consistent.", "pathIds": [ "recipe" ], "artifacts": [ "evidence/recipe-recon.json" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "pass", "confidence": "medium", "method": "Inspected machine-readable time representation.", "evidence": "Published time is stored unambiguously as 2026-07-19T21:36:29Z and rendered locally, avoiding ambiguous local-only storage.", "pathIds": [ "recipe" ], "artifacts": [ "evidence/lighthouse-recipe-summary.json", "evidence/recipe-recon.json" ] }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "pass", "confidence": "medium", "method": "Reviewed consent, premium entry, auth choices and visible pricing labels.", "evidence": "Consent provides accept and refuse with equal prominence; auth offers multiple routes; observed premium labels show the monthly price rather than disguising commitment.", "pathIds": [ "home", "auth", "premium", "recipe" ], "artifacts": [ "evidence/home-mobile.png", "evidence/login-mobile.png", "evidence/lighthouse-recipe-summary.json" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "not-applicable", "confidence": "high", "method": "Inspected guest-accessible forms.", "evidence": "The covered guest flow contains search, federated auth launchers, and navigation but no validation-bearing data-entry form where required-field/error timing could be exercised.", "reason": "The covered guest flow contains search, federated auth launchers, and navigation but no validation-bearing data-entry form where required-field/error timing could be exercised.", "artifacts": [ "evidence/home-recon.json", "evidence/login-recon.json" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "not-applicable", "confidence": "high", "method": "Inspected guest-accessible form controls.", "evidence": "No address, payment, password, or profile form is exposed before choosing a third-party/email auth route; the only text field is free-form recipe search, so transactional autofill tokens do not apply.", "reason": "No address, payment, password, or profile form is exposed before choosing a third-party/email auth route; the only text field is free-form recipe search, so transactional autofill tokens do not apply.", "artifacts": [ "evidence/home-recon.json", "evidence/login-recon.json" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "pass", "confidence": "medium", "method": "Reviewed guest premium and auth entry points without initiating a transaction.", "evidence": "Visible recipe upsell labels state £2.90/month, premium is clearly identified, and unauthenticated users are routed through explicit sign-up/login choices before any account transaction. Post-auth cancellation was excluded.", "pathIds": [ "recipe", "premium", "auth" ], "artifacts": [ "evidence/lighthouse-recipe-summary.json", "evidence/premium-desktop.png", "evidence/login-mobile.png" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/home-images.json, evidence/recipe-images.json.", "evidence": "Home has 17 images without srcset and 24 legacy-format images; recipe has 39 without srcset and 86 legacy-format images, plus the hero fetched at 300px but displayed as wide as 780px in the probe.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-images.json", "evidence/recipe-images.json" ], "findingIds": [ "F23" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "pass", "confidence": "medium", "method": "Reviewed HAR activity and trace after load.", "evidence": "No sustained long tasks, autoplay media, or chatty background fetch loop was observed; only two aborted first-party activity-log requests appeared.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/home-trace-summary.json" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "Direct evidence from evidence/home-summary.json, evidence/trackers.json.", "evidence": "GTM (186KB) and Facebook (108KB) are the first and third largest transferred resources; all third-party origins account for 910KB under the harness’s origin classification.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/trackers.json" ], "findingIds": [ "F24" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "not-applicable", "confidence": "high", "method": "Inspected robots policy, structured data and agent-facing feature signals.", "evidence": "Cookpad intentionally disallows major AI agents in robots.txt and exposes no declared agent-tool surface; this emerging capability is therefore judged intentionally out of scope rather than penalised.", "reason": "Cookpad intentionally disallows major AI agents in robots.txt and exposes no declared agent-tool surface; this emerging capability is therefore judged intentionally out of scope rather than penalised.", "artifacts": [ "evidence/robots.txt", "evidence/recipe-recon.json" ] }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "Inspected public UI and scripts for an inference feature.", "evidence": "No summarisation, generation, or other user-facing inference task is offered on the audited guest surfaces, so built-in on-device AI is not applicable.", "reason": "No summarisation, generation, or other user-facing inference task is offered on the audited guest surfaces, so built-in on-device AI is not applicable.", "artifacts": [ "evidence/home-platform-probe.json" ] }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "issues", "confidence": "medium", "method": "Direct evidence from evidence/heap-baseline.json, evidence/heap-after-one-scroll.json, evidence/heap-post-scroll.json.", "evidence": "Heap summaries rose from 24.9MB/425k nodes at baseline to 35.8MB/610k after one bottom traversal and 51.0MB/882k after ten. Growth is consistent with retained loaded results; it may be intentional rather than a detached-node leak, but remains unbounded for a long session.", "pathIds": [ "search" ], "artifacts": [ "evidence/heap-baseline.json", "evidence/heap-after-one-scroll.json", "evidence/heap-post-scroll.json" ], "findingIds": [ "F25" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "pass", "confidence": "medium", "method": "Captured a baseline heap summary on the search listing.", "evidence": "Baseline retained self-size was 24.9MB with 425k nodes, proportionate to an image-rich server-rendered results page; repeated-growth risk is separately reported.", "pathIds": [ "search" ], "artifacts": [ "evidence/heap-baseline.json" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "low", "method": "Compared heap constructor summaries after repeated traversal.", "evidence": "No Detached* constructor appeared among reported dominant constructors. The primitive could not enumerate all listeners, so confidence is low; observed growth aligns with retained result content rather than proven detached DOM.", "pathIds": [ "search" ], "artifacts": [ "evidence/heap-baseline.json", "evidence/heap-post-scroll.json" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "F01", "F02" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "issues", "findingIds": [ "F03", "F04" ] }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "issues", "findingIds": [ "F05" ] }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "F06" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F07", "F08" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "pass" }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F09", "F10", "F11", "F12" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F13", "F14", "F15", "F16" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "F17" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "F18" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F19", "F20", "F21", "F22" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "pass" }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "pass" }, { "principleId": "be-trustworthy", "expectation": "default", "status": "pass" }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F23", "F24" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "not-applicable", "reason": "Cookpad intentionally disallows major AI agents in robots.txt and exposes no declared agent-tool surface; this emerging capability is therefore judged intentionally out of scope rather than penalised. No summarisation, generation, or other user-facing inference task is offered on the audited guest surfaces, so built-in on-device AI is not applicable." }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "issues", "findingIds": [ "F25" ] } ], "paths": [ { "id": "home", "description": "Localized UK home and discovery surface: navigation, search entry, banners, trends, consent, desktop/mobile and preference conditions.", "url": "https://cookpad.com/uk", "conditions": [ "desktop 1440x1000", "mobile 390x844", "prefers-color-scheme: dark", "prefers-reduced-motion: reduce", "prefers-contrast: more", "no JavaScript crawler" ], "result": "issues" }, { "id": "search", "description": "Primary recipe-discovery journey and listing template, using the Chicken results page; includes repeated infinite-scroll interaction.", "url": "https://cookpad.com/eng/search/chicken", "conditions": [ "desktop", "mobile 390x844", "10 repeated bottom/top scroll cycles" ], "result": "issues" }, { "id": "recipe", "description": "Representative recipe detail and core content-consumption task, including metadata, mobile layout and no-JavaScript crawler view.", "url": "https://cookpad.com/eng/recipes/26340299", "conditions": [ "desktop", "mobile 390x844", "no JavaScript crawler" ], "result": "issues" }, { "id": "auth", "description": "Guest sign-up/login entry surface, representing authentication choices. Third-party identity-provider completion was excluded because it leaves Cookpad and requires credentials.", "url": "https://cookpad.com/uk/login", "conditions": [ "mobile 390x844", "guest" ], "result": "issues" }, { "id": "premium", "description": "Premium/listing surface and visible subscription entry points. Post-auth purchase/account cancellation was excluded because credentials and a transaction would be required.", "url": "https://cookpad.com/uk/premium", "conditions": [ "desktop", "guest" ], "result": "pass" }, { "id": "not-found", "description": "Representative HTTP failure/recovery state on an unknown route.", "url": "https://cookpad.com/uk/this-route-does-not-exist-audit", "conditions": [ "mobile 390x844" ], "result": "pass" } ], "findings": [ { "id": "F01", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "The site does not honour the user’s dark colour-scheme preference.", "evidence": "The dark-condition screenshot is pixel-identical in palette to the light screenshot, and the platform probe found no prefers-color-scheme rule or color-scheme declaration.", "artifacts": [ "evidence/home-dark.png", "evidence/home-platform-probe.json" ], "suggestedFix": "Declare color-scheme and provide preference-driven dark surface/text tokens with prefers-color-scheme or light-dark().", "effort": "medium" }, { "id": "F02", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "respect-user-preferences", "principleCheckId": "respects-contrast", "guidanceId": "adapt-scrollbar-to-contrast-preferences", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "There is no explicit high-contrast or forced-colours adaptation.", "evidence": "The platform probe found no prefers-contrast or forced-colors rules; Lighthouse also measured text/button contrast as low as 2.13:1.", "artifacts": [ "evidence/contrast-probe.json", "evidence/lighthouse-home-summary.json" ], "suggestedFix": "Add forced-colors and prefers-contrast adaptations, preserve native control colours, and strengthen low-contrast tokens.", "effort": "medium" }, { "id": "F03", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "implement-natural-interactions", "principleCheckId": "view-transitions", "guidanceId": "cross-document-transitions", "guidanceCategory": "user-experience", "severity": "low", "confidence": "high", "summary": "Route and state changes do not use View Transitions.", "evidence": "The live CSS probe found no view-transition declarations and no active transition animations on the representative home surface.", "artifacts": [ "evidence/home-platform-probe.json" ], "suggestedFix": "Use same-document and cross-document View Transitions for route/detail changes, with reduced-motion fallbacks.", "effort": "medium" }, { "id": "F04", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "implement-natural-interactions", "principleCheckId": "physical-gestures", "guidanceId": "carousel-slide-effects", "guidanceCategory": "user-experience", "severity": "low", "confidence": "high", "summary": "The banner carousel uses small custom pagination rather than a platform-aligned, touch-friendly scrolling interaction.", "evidence": "The mobile screenshot shows an interactive carousel; CSS had no scroll-snap, while Lighthouse measured its pagination controls at only 8–10px.", "artifacts": [ "evidence/home-mobile.png", "evidence/lighthouse-home-summary.json" ], "suggestedFix": "Use a scroll-snap carousel with adequately sized controls and native scrolling behaviour.", "effort": "medium" }, { "id": "F05", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "provide-guided-navigation", "principleCheckId": "scroll-state-aware-chrome", "guidanceId": "shrinking-header-on-scroll", "guidanceCategory": "user-experience", "severity": "low", "confidence": "high", "summary": "Sticky navigation does not adapt to scroll state.", "evidence": "DOM evidence shows a sticky header, but the CSS probe found no scroll-state query, scroll timeline, or progress affordance.", "artifacts": [ "evidence/home-dom.json", "evidence/home-platform-probe.json" ], "suggestedFix": "Use scroll-state container queries or a lightweight declarative progress/shrinking treatment where the long listing and recipe pages benefit.", "effort": "medium" }, { "id": "F06", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "maximize-content-reduce-noise", "principleCheckId": "semantic-dismissible-primitives", "guidanceId": "declarative-dialog-popover-control", "guidanceCategory": "user-experience", "severity": "low", "confidence": "high", "summary": "Transient consent and navigation UI use custom containers rather than modern semantic overlay primitives.", "evidence": "The loaded page exposes no dialog, popover, or details elements even though the fixed cookie consent panel and mobile navigation are dismissible transient UI.", "artifacts": [ "evidence/home-desktop.png", "evidence/home-platform-probe.json" ], "suggestedFix": "Use dialog/popover semantics and declarative light-dismiss where appropriate, retaining explicit accept/refuse actions.", "effort": "medium" }, { "id": "F07", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "adapt-to-the-form-factor", "principleCheckId": "component-level-responsiveness", "guidanceId": "size-aware-styling", "guidanceCategory": "user-experience", "severity": "low", "confidence": "high", "summary": "Responsive components rely on viewport styling only.", "evidence": "The representative components visibly rearrange between mobile and desktop, but live CSS inspection found no @container rules or container-type declarations.", "artifacts": [ "evidence/home-mobile.png", "evidence/home-desktop.png", "evidence/home-platform-probe.json" ], "suggestedFix": "Introduce container queries for reusable recipe cards, sidebars, and action groups that appear in differently sized parents.", "effort": "medium" }, { "id": "F08", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "high", "summary": "Carousel controls are too small for reliable touch input.", "evidence": "Lighthouse measured four mobile pagination buttons at 8–10px with less than 24px safe clickable space. Keyboard focus itself was visible.", "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/home-mobile.png" ], "suggestedFix": "Keep the visual dots small if desired, but expand each interactive hit area to at least 24px and preferably 44px.", "effort": "medium" }, { "id": "F09", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "performance", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "Lab Core Web Vitals are outside the good range on key templates.", "evidence": "Mobile Lighthouse measured home LCP 5.4s and CLS 0.17; recipe LCP 3.6s and CLS 0.16. Both exceed good thresholds.", "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/lighthouse-recipe-summary.json", "evidence/home-trace-summary.json" ], "suggestedFix": "Prioritise the LCP element, shorten dependency chains, and reserve stable space for late content.", "effort": "medium" }, { "id": "F10", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-fast-and-stable", "principleCheckId": "visual-stability", "guidanceId": "visually-stable-font-fallbacks", "guidanceCategory": "user-experience", "severity": "high", "confidence": "high", "summary": "Both home and recipe templates shift materially during load.", "evidence": "Lighthouse recorded CLS 0.170 on home and 0.160 on recipe even though the later five-second layout observer saw no additional shifts.", "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/lighthouse-recipe-summary.json" ], "suggestedFix": "Reserve dimensions for all initial media/chrome and diagnose Lighthouse layout-shift elements before hydration or font swaps.", "effort": "medium" }, { "id": "F11", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-script-priority", "guidanceCategory": "performance", "severity": "medium", "confidence": "high", "summary": "Third-party scripts and render-blocking font styles delay critical delivery.", "evidence": "The HAR recorded 930KB across 64 requests; GTM took 1.14s and 186KB, Facebook 108KB, and two Typekit stylesheets were parser-inserted at VeryHigh priority.", "artifacts": [ "evidence/home-summary.json", "evidence/home.har" ], "suggestedFix": "Self-host/subset fonts, minimise blocking styles, and delay analytics until consent or idle where business requirements allow.", "effort": "medium" }, { "id": "F12", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "identify-heavy-scripts", "guidanceCategory": "performance", "severity": "medium", "confidence": "high", "summary": "Third-party JavaScript dominates a substantial share of the home load.", "evidence": "Scripts account for 461KB; GTM and Facebook alone transfer about 294KB, while the home page’s main task is simple recipe discovery.", "artifacts": [ "evidence/home-summary.json" ], "suggestedFix": "Audit tag usage, remove duplicate/unneeded tags, and conditionally load analytics only when needed.", "effort": "medium" }, { "id": "F13", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Core navigation and recipe controls have invalid or missing accessible semantics.", "evidence": "Lighthouse found invalid tablist/tab relationships, unnamed banner links/images on home, an unnamed recipe back button, and aria-hidden content containing a focusable app link.", "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/lighthouse-recipe-summary.json" ], "suggestedFix": "Use native list/navigation semantics, provide names for icon controls and linked images, and remove hidden descendants from the tab order.", "effort": "medium" }, { "id": "F14", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-inclusive", "principleCheckId": "sufficient-contrast", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Text and primary action colours fail WCAG contrast.", "evidence": "Lighthouse measured white on Cookpad orange at 2.13:1, orange text on the recipe surface at 2.07:1, and secondary text at 2.88–4.42:1.", "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/lighthouse-recipe-summary.json" ], "suggestedFix": "Darken the orange/secondary tokens or change foreground colours until normal text reaches at least 4.5:1 and essential UI reaches 3:1.", "effort": "medium" }, { "id": "F15", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-inclusive", "principleCheckId": "structure-and-focus", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "high", "summary": "Page landmarks, headings, and list semantics are not logically structured.", "evidence": "Both Lighthouse runs report no main landmark; home contains two H1s, and recipe ingredients are li elements overridden with role=paragraph, invalidating their list.", "artifacts": [ "evidence/home-platform-probe.json", "evidence/lighthouse-recipe-summary.json" ], "suggestedFix": "Add one main landmark, one page-level H1 per template, and retain native list semantics for ingredients/navigation.", "effort": "medium" }, { "id": "F16", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-inclusive", "principleCheckId": "zoom-reflow-targets-and-media", "guidanceId": "fluid-scaling", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "Small carousel targets weaken reflowed/touch use.", "evidence": "The 390px layouts had no horizontal overflow, but Lighthouse’s target-size audit found 8–10px pagination buttons with insufficient spacing.", "artifacts": [ "evidence/home-mobile-layout.json", "evidence/lighthouse-home-summary.json" ], "suggestedFix": "Enlarge target hit areas without changing the compact visual marker and verify at 200% zoom.", "effort": "medium" }, { "id": "F17", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "guidanceId": "html", "guidanceCategory": "html", "severity": "low", "confidence": "high", "summary": "Some image assets are incorrectly sized or lack intrinsic dimensions.", "evidence": "The image probes found two home images without dimensions, and Lighthouse found a recipe avatar displayed at a distorted 14×16 ratio instead of 1:1.", "artifacts": [ "evidence/home-images.json", "evidence/lighthouse-recipe-summary.json" ], "suggestedFix": "Set correct width/height or aspect-ratio on every image and avoid stretching avatars.", "effort": "medium" }, { "id": "F18", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-discoverable", "principleCheckId": "canonical-and-indexing-signals", "guidanceId": "html", "guidanceCategory": "html", "severity": "medium", "confidence": "high", "summary": "The localized home has inconsistent canonical/sitemap signals.", "evidence": "The UK page declares canonical https://cookpad.com/eng, Lighthouse flags it invalid, and https://cookpad.com/sitemap.xml returns HTTP 404. Recipe canonical and metadata are valid.", "artifacts": [ "evidence/home-platform-probe.json", "evidence/lighthouse-home-summary.json", "evidence/sitemap-headers.txt" ], "suggestedFix": "Give each indexable locale a valid self/cluster canonical strategy, publish sitemap indexes, and reference them from robots.txt.", "effort": "medium" }, { "id": "F19", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "guidanceCategory": "security", "severity": "medium", "confidence": "high", "summary": "The main document is served without Content-Security-Policy.", "evidence": "The headers primitive confirms HTTPS, HSTS, nosniff and SAMEORIGIN, but no Content-Security-Policy header.", "artifacts": [ "evidence/headers.json" ], "suggestedFix": "Deploy a nonce/hash-based CSP, beginning in report-only mode, then enforce it without unsafe-inline/unsafe-eval.", "effort": "medium" }, { "id": "F20", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-private-and-secure", "principleCheckId": "data-minimisation-and-third-parties", "guidanceId": "privacy", "guidanceCategory": "privacy", "severity": "medium", "confidence": "high", "summary": "Tracking code loads before the user chooses a cookie preference.", "evidence": "A fresh guest load requested Google Tag Manager and Facebook tracking code; tracker evidence lists six third-party origins and the HAR attributes about 294KB to GTM/Facebook.", "artifacts": [ "evidence/trackers.json", "evidence/home-summary.json", "evidence/home-desktop.png" ], "suggestedFix": "Gate non-essential analytics behind refusal-aware consent and minimise/batch events.", "effort": "medium" }, { "id": "F21", "pathId": "auth", "url": "https://cookpad.com/uk/login", "principleId": "be-private-and-secure", "principleCheckId": "in-context-permissions-and-modern-auth", "guidanceId": "passkeys", "guidanceCategory": "passkeys", "severity": "low", "confidence": "high", "summary": "Guest authentication offers federated identity or email, but no passkey option.", "evidence": "The auth surface offers Google, Apple, Facebook, and Email; the inspected markup exposes no WebAuthn/passkey path. No permission prompt fired on load.", "artifacts": [ "evidence/login-mobile.png", "evidence/login-recon.json" ], "suggestedFix": "Add discoverable passkey registration/authentication and conditional UI alongside existing recovery methods.", "effort": "medium" }, { "id": "F22", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "guidanceId": "security", "guidanceCategory": "security", "severity": "low", "confidence": "high", "summary": "Permissions-Policy is absent.", "evidence": "The headers primitive found HSTS, clickjacking protection and Referrer-Policy, but no Permissions-Policy header.", "artifacts": [ "evidence/headers.json" ], "suggestedFix": "Send a restrictive Permissions-Policy allowing only capabilities required by Cookpad and trusted origins.", "effort": "medium" }, { "id": "F23", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "optimize-image-priority", "guidanceCategory": "performance", "severity": "medium", "confidence": "high", "summary": "Image delivery is not consistently responsive or format-efficient.", "evidence": "Home has 17 images without srcset and 24 legacy-format images; recipe has 39 without srcset and 86 legacy-format images, plus the hero fetched at 300px but displayed as wide as 780px in the probe.", "artifacts": [ "evidence/home-images.json", "evidence/recipe-images.json" ], "suggestedFix": "Serve AVIF/WebP picture sources with width-based srcset/sizes and match intrinsic resolution to rendered size.", "effort": "medium" }, { "id": "F24", "pathId": "home", "url": "https://cookpad.com/uk", "principleId": "be-sustainable", "principleCheckId": "third-party-and-media-budget", "guidanceId": "deprioritize-background-fetches", "guidanceCategory": "performance", "severity": "medium", "confidence": "high", "summary": "Analytics and social tracking consume disproportionate bytes on a simple discovery page.", "evidence": "GTM (186KB) and Facebook (108KB) are the first and third largest transferred resources; all third-party origins account for 910KB under the harness’s origin classification.", "artifacts": [ "evidence/home-summary.json", "evidence/trackers.json" ], "suggestedFix": "Set a third-party byte budget, defer tags until consent/idle, and remove tags that do not produce actionable value.", "effort": "medium" }, { "id": "F25", "pathId": "search", "url": "https://cookpad.com/eng/search/chicken", "principleId": "be-memory-efficient", "principleCheckId": "no-leak-under-repeated-interaction", "guidanceId": "defer-rendering-heavy-content", "guidanceCategory": "performance", "severity": "high", "confidence": "medium", "summary": "Repeated infinite-scroll traversal grows retained heap substantially without evidence of release.", "evidence": "Heap summaries rose from 24.9MB/425k nodes at baseline to 35.8MB/610k after one bottom traversal and 51.0MB/882k after ten. Growth is consistent with retained loaded results; it may be intentional rather than a detached-node leak, but remains unbounded for a long session.", "artifacts": [ "evidence/heap-baseline.json", "evidence/heap-after-one-scroll.json", "evidence/heap-post-scroll.json" ], "suggestedFix": "Virtualise or prune off-screen result cards and bound caches; repeat the same cycle in one session with allocation/retainer analysis to verify release.", "effort": "large" } ], "taskList": [ { "id": "T01", "title": "Repair semantic structure, accessible names, contrast, focus visibility, and touch target sizing", "priority": 1, "findingIds": [ "F08", "F13", "F14", "F15", "F16" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T02", "title": "Improve LCP and eliminate initial layout shifts on home and recipe templates", "priority": 2, "findingIds": [ "F09", "F10", "F11" ], "guidanceId": "performance", "status": "open" }, { "id": "T03", "title": "Bound infinite-list DOM and retained-memory growth with virtualization or pruning", "priority": 3, "findingIds": [ "F25" ], "guidanceId": "defer-rendering-heavy-content", "status": "open" }, { "id": "T04", "title": "Gate and reduce analytics/social tags; establish third-party budgets", "priority": 4, "findingIds": [ "F12", "F20", "F24" ], "guidanceId": "deprioritize-background-fetches", "status": "open" }, { "id": "T05", "title": "Add responsive image sources, modern formats, intrinsic sizing, and correct aspect ratios", "priority": 5, "findingIds": [ "F17", "F23" ], "guidanceId": "optimize-image-priority", "status": "open" }, { "id": "T06", "title": "Add CSP and Permissions-Policy, then introduce passkey authentication", "priority": 6, "findingIds": [ "F19", "F21", "F22" ], "guidanceId": "security", "status": "open" }, { "id": "T07", "title": "Implement preference-driven dark/high-contrast themes", "priority": 7, "findingIds": [ "F01", "F02" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "T08", "title": "Correct localized canonical and sitemap signals", "priority": 8, "findingIds": [ "F18" ], "guidanceId": "html", "status": "open" }, { "id": "T09", "title": "Modernise carousel/navigation motion, touch interaction, and scroll-state feedback", "priority": 9, "findingIds": [ "F03", "F04", "F05" ], "guidanceId": "carousel-slide-effects", "status": "open" }, { "id": "T10", "title": "Adopt semantic transient UI and component container queries", "priority": 10, "findingIds": [ "F06", "F07" ], "guidanceId": "declarative-dialog-popover-control", "status": "open" } ], "budget": { "pathCount": 6, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-21T20-26-26-773Z" }