{ "url": "https://in.pinterest.com", "auditedAt": "2026-07-23T06:09:44.686Z", "mode": "report", "status": "completed", "statusDetail": "Coverage-complete audit of four representative public archetypes and preference/mobile/failure conditions.", "page": { "appType": "hybrid", "framework": "React-based client application with server metadata/detail content", "notes": "Public visual-discovery service. Homepage, Explore listing, board detail, login flow and missing-route recovery were sampled. Authenticated feed, pin creation, account settings, checkout/ads tooling and post-login personalisation were not covered because no account credentials were provided." }, "evidenceUsed": [ "screenshot", "transition-video", "dom", "evaluate-probe", "layout-metrics", "trace", "har", "discoverability", "headers", "cookies", "trackers", "secrets", "images", "heap-summary", "lighthouse", "curl robots/sitemap", "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": "discoverability", "path": "evidence/board-discoverability", "caption": "board discoverability", "findingIds": [ "F21" ] }, { "type": "screenshot", "path": "evidence/board-discoverability-crawler.png", "caption": "board discoverability crawler", "findingIds": [] }, { "type": "screenshot", "path": "evidence/board-discoverability-rendered.png", "caption": "board discoverability rendered", "findingIds": [] }, { "type": "screenshot", "path": "evidence/board.png", "caption": "board", "findingIds": [] }, { "type": "other", "path": "evidence/cookies.json", "caption": "cookies", "findingIds": [ "F18" ] }, { "type": "discoverability", "path": "evidence/discoverability", "caption": "discoverability", "findingIds": [ "F17", "F21" ] }, { "type": "screenshot", "path": "evidence/discoverability-crawler.png", "caption": "Homepage crawler view with JavaScript disabled.", "findingIds": [ "F17", "F21" ] }, { "type": "screenshot", "path": "evidence/discoverability-rendered.png", "caption": "Rendered homepage companion view.", "findingIds": [ "F17" ] }, { "type": "other", "path": "evidence/document-probe.json", "caption": "document probe", "findingIds": [ "F05" ] }, { "type": "other", "path": "evidence/headers.json", "caption": "headers", "findingIds": [ "F18" ] }, { "type": "heap", "path": "evidence/heap-baseline.heapsnapshot", "caption": "Readable baseline heap summary.", "findingIds": [ "F26" ] }, { "type": "heap", "path": "evidence/heap-post.heapsnapshot", "caption": "Readable heap summary after ten repeated scroll cycles.", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "Homepage under prefers-color-scheme: dark remains light.", "findingIds": [ "F01" ] }, { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "home desktop", "findingIds": [ "F04" ] }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "home dom", "findingIds": [ "F01", "F05" ] }, { "type": "other", "path": "evidence/home-images.json", "caption": "home images", "findingIds": [ "F14", "F24" ] }, { "type": "layout", "path": "evidence/home-mobile-layout.json", "caption": "Mobile layout metrics showing 569 px horizontal overflow.", "findingIds": [ "F06", "F12" ] }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "Homepage at 360x800 showing severe horizontal clipping.", "findingIds": [ "F06", "F12" ] }, { "type": "other", "path": "evidence/home-recon.json", "caption": "home recon", "findingIds": [ "F16" ] }, { "type": "har-summary", "path": "evidence/home-summary.json", "caption": "Compact HAR/network summary.", "findingIds": [ "F08", "F10", "F11", "F13", "F19", "F22", "F24", "F25" ] }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "Compact trace timings and long-task summary.", "findingIds": [ "F09" ] }, { "type": "trace", "path": "evidence/home-trace.json", "caption": "home trace", "findingIds": [ "F09" ] }, { "type": "har", "path": "evidence/home.har", "caption": "home", "findingIds": [ "F10", "F19" ] }, { "type": "dom", "path": "evidence/ideas-dom.json", "caption": "ideas dom", "findingIds": [] }, { "type": "screenshot", "path": "evidence/ideas.png", "caption": "ideas", "findingIds": [ "F04" ] }, { "type": "video", "path": "evidence/interaction.mp4", "caption": "interaction", "findingIds": [ "F02", "F03" ] }, { "type": "lighthouse", "path": "evidence/lighthouse.json", "caption": "Lighthouse performance, accessibility, best-practices, SEO and agentic-browsing audit.", "findingIds": [ "F07", "F08", "F09", "F11", "F12", "F13", "F15", "F16", "F25" ] }, { "type": "screenshot", "path": "evidence/login-invalid.png", "caption": "login invalid", "findingIds": [ "F23" ] }, { "type": "other", "path": "evidence/login-probe.json", "caption": "login probe", "findingIds": [ "F20", "F23" ] }, { "type": "screenshot", "path": "evidence/login.png", "caption": "login", "findingIds": [ "F04", "F20" ] }, { "type": "screenshot", "path": "evidence/not-found.png", "caption": "not found", "findingIds": [ "F08", "F22" ] }, { "type": "other", "path": "evidence/preferences-probe.json", "caption": "preferences probe", "findingIds": [ "F02", "F07" ] }, { "type": "other", "path": "evidence/robots-sitemap.txt", "caption": "robots sitemap", "findingIds": [ "F16" ] }, { "type": "other", "path": "evidence/runtime-probe.json", "caption": "runtime probe", "findingIds": [ "F26" ] }, { "type": "other", "path": "evidence/secrets.json", "caption": "secrets", "findingIds": [ "F18" ] }, { "type": "other", "path": "evidence/trackers.json", "caption": "trackers", "findingIds": [ "F19" ] }, { "type": "other", "path": "coverage-manifest.json", "caption": "Atomic check coverage manifest and evidence plan", "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 artifact review against mapped guidance", "evidence": "The dark-mode screenshot remains a white/light-grey surface and the DOM reports color-scheme: normal under prefers-color-scheme: dark.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dark.png", "evidence/home-dom.json" ], "findingIds": [ "F01" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "high", "method": "evaluate-probe", "evidence": "evaluate under prefers-reduced-motion: reduce found zero active animations.", "pathIds": [ "home" ], "artifacts": [ "evidence/preferences-probe.json" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "pass", "confidence": "high", "method": "lighthouse+evaluate", "evidence": "Lighthouse passed colour contrast and the preference probe confirmed prefers-contrast emulation with relevant CSS rules present.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/preferences-probe.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "The interaction video shows the consent layer disappearing and content changing without a directional or continuity cue; no active View Transition was observed.", "pathIds": [ "home" ], "artifacts": [ "evidence/interaction.mp4", "evidence/preferences-probe.json" ], "findingIds": [ "F02" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "pass", "confidence": "high", "method": "video+evaluate", "evidence": "The recorded smooth scroll produced no long interaction task and no active scripted animation was found under reduced motion.", "pathIds": [ "home" ], "artifacts": [ "evidence/interaction.mp4", "evidence/preferences-probe.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "pass", "confidence": "high", "method": "interaction video", "evidence": "The public page relies on native scrolling; the recorded scroll remained controllable and no custom gesture trap was observed.", "pathIds": [ "home" ], "artifacts": [ "evidence/interaction.mp4" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "The interaction video shows a long content page with no progress or scroll-state response in its navigation chrome.", "pathIds": [ "home" ], "artifacts": [ "evidence/interaction.mp4" ], "findingIds": [ "F03" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "not-applicable", "confidence": "high", "method": "applicability judgement from representative-path recon", "evidence": "No tooltip, anchored popover, or edge-positioned menu was present in the audited unauthenticated paths.", "reason": "No tooltip, anchored popover, or edge-positioned menu was present in the audited unauthenticated paths.", "pathIds": [ "home" ] }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "The interaction video shows the consent layer disappearing and content changing without a directional or continuity cue; no active View Transition was observed.", "pathIds": [ "home" ], "artifacts": [ "evidence/interaction.mp4", "evidence/preferences-probe.json" ], "findingIds": [ "F02" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Desktop, Explore and login captures all open with a viewport-dimming consent or login layer over the content; Explore is blocked by login before interaction.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/ideas.png", "evidence/login.png" ], "findingIds": [ "F04" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "The document probe finds a DIV role=dialog aria-modal=true; no is present.", "pathIds": [ "home" ], "artifacts": [ "evidence/document-probe.json", "evidence/home-dom.json" ], "findingIds": [ "F05" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "pass", "confidence": "high", "method": "visual review", "evidence": "Desktop captures devote the page body to imagery and discovery content with a compact top navigation outside the prompted overlays.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/board.png" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "At 360x800, layout reports scrollWidth 929 versus visual viewport 360, 569 px overflow; the screenshot clips headings and most of the consent dialog off-screen.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json" ], "findingIds": [ "F06" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "pass", "confidence": "high", "method": "CSS+screenshots", "evidence": "Document probe confirms container-query CSS is shipped, and desktop cards adapt across the homepage and Explore layouts.", "pathIds": [ "home" ], "artifacts": [ "evidence/document-probe.json", "evidence/home-desktop.png", "evidence/ideas.png" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "The focused skip link computes outline:none and box-shadow:none; Lighthouse fails target-size for the Pinterest app controls.", "pathIds": [ "home" ], "artifacts": [ "evidence/preferences-probe.json", "evidence/lighthouse.json" ], "findingIds": [ "F07" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "high", "method": "visual+DOM", "evidence": "The first viewport clearly states “Create the life you love on Pinterest” with Join and Log in actions.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-recon.json" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "pass", "confidence": "high", "method": "journey+DOM", "evidence": "The representative unauthenticated login journey reaches a labelled email/password form with login, Google and signup choices; completion requiring real credentials was not fabricated.", "pathIds": [ "home" ], "artifacts": [ "evidence/login.png", "evidence/login-probe.json" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "A nonexistent URL renders the normal homepage rather than a clear 404/recovery state, while HAR records two 404 API calls and Lighthouse logs them as console errors.", "pathIds": [ "not-found" ], "artifacts": [ "evidence/not-found.png", "evidence/home-summary.json", "evidence/lighthouse.json" ], "findingIds": [ "F08" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Lighthouse reports LCP 18.4 s, CLS 0.463 and TBT 510 ms (performance score 0.23); trace corroborates 4.21 s LCP and two long tasks in a separate run.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/home-trace-summary.json", "evidence/home-trace.json" ], "findingIds": [ "F09" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Lighthouse reports LCP 18.4 s, CLS 0.463 and TBT 510 ms (performance score 0.23); trace corroborates 4.21 s LCP and two long tasks in a separate run.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/home-trace-summary.json", "evidence/home-trace.json" ], "findingIds": [ "F09" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Lighthouse reports LCP 18.4 s, CLS 0.463 and TBT 510 ms (performance score 0.23); trace corroborates 4.21 s LCP and two long tasks in a separate run.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/home-trace-summary.json", "evidence/home-trace.json" ], "findingIds": [ "F09" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "HAR captures 159 requests and 6,436,533 transferred bytes, including 78 scripts (2.90 MB), 45 images (2.46 MB) and 4 media requests (820 KB).", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/home.har" ], "findingIds": [ "F10" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "HAR records 78 script requests and 2.90 MB script transfer; Lighthouse identifies large first-party bundles and missing/403 source maps.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/lighthouse.json" ], "findingIds": [ "F11" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "pass", "confidence": "high", "method": "lighthouse+DOM", "evidence": "Lighthouse passed image-alt and accessible naming audits; login inputs have programmatic Email and Password labels.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/login-probe.json" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "pass", "confidence": "high", "method": "lighthouse", "evidence": "Lighthouse colour-contrast audit passed on the homepage.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "The focused skip link computes outline:none and box-shadow:none; Lighthouse fails target-size for the Pinterest app controls.", "pathIds": [ "home" ], "artifacts": [ "evidence/preferences-probe.json", "evidence/lighthouse.json" ], "findingIds": [ "F07" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "pass", "confidence": "high", "method": "visual review", "evidence": "Desktop screenshots show readable typography, comfortable line lengths and clear heading hierarchy on the public landing and Explore pages.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/ideas.png" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "The 360 px screenshot is clipped with 569 px horizontal overflow and Lighthouse fails the target-size audit.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json", "evidence/lighthouse.json" ], "findingIds": [ "F12" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Lighthouse records a FedCM NetworkError and two first-party 404 requests during load; HAR confirms 404 responses.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/home-summary.json" ], "findingIds": [ "F13" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "The image probe reports 36/36 images without width/height, 27 oversized, 35 below-fold not lazy, 11 without srcset and no modern-format images.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-images.json" ], "findingIds": [ "F14" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Lighthouse reports a BFCache blocker and missing/403 source maps for large first-party modules.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json" ], "findingIds": [ "F15" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "high", "method": "DOM probe", "evidence": "DOM reports title “Pinterest - India” and a descriptive meta description.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-recon.json" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Discoverability reports 1% rendered-word coverage, isJsShell:true and no raw-HTML h1; the crawler screenshot contains almost no core content.", "pathIds": [ "home" ], "artifacts": [ "evidence/discoverability", "evidence/discoverability-rendered.png", "evidence/discoverability-crawler.png" ], "findingIds": [ "F17" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "The live DOM canonical is https://www.pinterest.com/ while the audited URL is https://in.pinterest.com/; Lighthouse fails the canonical audit.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-recon.json", "evidence/lighthouse.json", "evidence/robots-sitemap.txt" ], "findingIds": [ "F16" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "pass", "confidence": "high", "method": "DOM probe", "evidence": "The page exposes JSON-LD plus six Open Graph tags matching Pinterest’s visible public identity.", "pathIds": [ "home" ], "artifacts": [ "evidence/document-probe.json", "evidence/home-recon.json" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Cookies audit finds five cookies flagged insecure, including non-Secure g_state, _b and _routing_id and multiple SameSite=None cookies; CSP permits unsafe-inline and Permissions-Policy is missing. No client secrets were found.", "pathIds": [ "home" ], "artifacts": [ "evidence/cookies.json", "evidence/headers.json", "evidence/secrets.json" ], "findingIds": [ "F18" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Tracker evidence finds nine third-party origins and Pinterest tracker endpoints; HAR attributes 137/159 requests and 6.28 MB to cross-origin hosts before consent was acted on.", "pathIds": [ "home" ], "artifacts": [ "evidence/trackers.json", "evidence/home-summary.json", "evidence/home.har" ], "findingIds": [ "F19" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Login exposes email/password and Google/QR options; no passkey/WebAuthn affordance was observed.", "pathIds": [ "login" ], "artifacts": [ "evidence/login.png", "evidence/login-probe.json" ], "findingIds": [ "F20" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Cookies audit finds five cookies flagged insecure, including non-Secure g_state, _b and _routing_id and multiple SameSite=None cookies; CSP permits unsafe-inline and Permissions-Policy is missing. No client secrets were found.", "pathIds": [ "home" ], "artifacts": [ "evidence/cookies.json", "evidence/headers.json", "evidence/secrets.json" ], "findingIds": [ "F18" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Raw HTML is 1.1 MB yet contains only 7 content tokens and 1% of rendered words; without JavaScript the homepage is a shell. A board detail fares better at 57%.", "pathIds": [ "home" ], "artifacts": [ "evidence/discoverability", "evidence/discoverability-crawler.png", "evidence/board-discoverability" ], "findingIds": [ "F21" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "At 360x800, layout reports scrollWidth 929 versus visual viewport 360, 569 px overflow; the screenshot clips headings and most of the consent dialog off-screen.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json" ], "findingIds": [ "F06" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "pass", "confidence": "high", "method": "runtime probe", "evidence": "Runtime confirms a service worker interface and linked manifest; the public shell has an installability foundation. Offline task completion was not claimed beyond this check’s app foundation.", "pathIds": [ "home" ], "artifacts": [ "evidence/runtime-probe.json" ] }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "The synthetic missing route shows the normal homepage and HAR records failed first-party calls without a visible recovery state.", "pathIds": [ "not-found" ], "artifacts": [ "evidence/not-found.png", "evidence/home-summary.json" ], "findingIds": [ "F22" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "pass", "confidence": "high", "method": "DOM+CSS probe", "evidence": "HTML lang=en, 37 hreflang variants, and logical-property CSS were observed.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-recon.json", "evidence/document-probe.json" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "not-applicable", "confidence": "high", "method": "applicability judgement from representative-path recon", "evidence": "The representative public paths display no dates, currencies, numbers, durations or calendar data requiring locale formatting.", "reason": "The representative public paths display no dates, currencies, numbers, durations or calendar data requiring locale formatting.", "pathIds": [ "home" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "not-applicable", "confidence": "high", "method": "applicability judgement from representative-path recon", "evidence": "The representative public paths expose no event or time-zone-sensitive data.", "reason": "The representative public paths expose no event or time-zone-sensitive data.", "pathIds": [ "home" ] }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "pass", "confidence": "high", "method": "visual review", "evidence": "Cookie dialog presents Reject all, Let me choose and Accept all at the same level; login and signup commitments are plainly labelled.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/login.png" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "After requestSubmit() with empty email and password, the captured form remains visually unchanged with no clear inline error or recovery instruction.", "pathIds": [ "login" ], "artifacts": [ "evidence/login-invalid.png", "evidence/login-probe.json" ], "findingIds": [ "F23" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "pass", "confidence": "high", "method": "DOM probe", "evidence": "Observed signup/login fields use email, current-password/new-password and bday autocomplete tokens.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-recon.json", "evidence/login-probe.json" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Login exposes email/password and Google/QR options; no passkey/WebAuthn affordance was observed.", "pathIds": [ "login" ], "artifacts": [ "evidence/login.png", "evidence/login-probe.json" ], "findingIds": [ "F20" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "HAR transfers 2.46 MB of images and 820 KB of media; image audit finds 27 oversized and zero modern-format images.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/home-images.json" ], "findingIds": [ "F24" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "The landing page performs 159 requests, including 78 scripts and 19 fetch/XHR requests, while Lighthouse reaches only 0.23 performance.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/lighthouse.json" ], "findingIds": [ "F25" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "HAR transfers 2.46 MB of images and 820 KB of media; image audit finds 27 oversized and zero modern-format images.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/home-images.json" ], "findingIds": [ "F24" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "not-applicable", "confidence": "high", "method": "applicability judgement from representative-path recon", "evidence": "Pinterest exposes no declared agent-facing transaction or productivity surface in the audited unauthenticated scope; this emerging capability is treated as an opportunity, not a failure.", "reason": "Pinterest exposes no declared agent-facing transaction or productivity surface in the audited unauthenticated scope; this emerging capability is treated as an opportunity, not a failure.", "pathIds": [ "home" ] }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "applicability judgement from representative-path recon", "evidence": "No audited task calls for on-device generation or summarisation, so built-in inference is not required.", "reason": "No audited task calls for on-device generation or summarisation, so built-in inference is not required.", "pathIds": [ "home" ] }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "pass", "confidence": "high", "method": "before/after heap summaries", "evidence": "After ten top-to-bottom scroll cycles, heap self size fell from 71.37 MB to 70.21 MB; node count rose only 1.8% across independently loaded snapshots, with no evidence of unbounded retained growth.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post.heapsnapshot" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "issues", "confidence": "high", "method": "direct artifact review against mapped guidance", "evidence": "Heap summary contains about 1.12 million V8 snapshot nodes and 71.4 MB self size; runtime reports 56.0 MB used JS heap and 1,294 DOM elements. Repeated scroll did not increase total self size.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/runtime-probe.json" ], "findingIds": [ "F26" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "high", "method": "heap comparison", "evidence": "Neither heap summary lists Detached* constructors among retained populations, and total self size did not grow after repeated scrolling.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post.heapsnapshot" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "F01" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "issues", "findingIds": [ "F02" ] }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "issues", "findingIds": [ "F03", "F02" ] }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "F04", "F05" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F06", "F07" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "issues", "findingIds": [ "F08" ] }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F09", "F10", "F11" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F07", "F12" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "F13", "F14", "F15" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "F17", "F16" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F18", "F19", "F20" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "issues", "findingIds": [ "F21", "F06", "F22" ] }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "pass" }, { "principleId": "be-trustworthy", "expectation": "default", "status": "issues", "findingIds": [ "F23", "F20" ] }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F24", "F25" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "not-applicable", "reason": "Pinterest exposes no declared agent-facing transaction or productivity surface in the audited unauthenticated scope; this emerging capability is treated as an opportunity, not a failure. No audited task calls for on-device generation or summarisation, so built-in inference is not required." }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "issues", "findingIds": [ "F26" ] } ], "paths": [ { "id": "home", "description": "Public homepage/landing archetype: purpose, discovery entry, consent, preferences, mobile layout, performance, security and network.", "url": "https://in.pinterest.com/", "conditions": [ "desktop", "360x800", "prefers-color-scheme: dark", "prefers-reduced-motion: reduce", "prefers-contrast: more", "crawler without JavaScript", "repeated scrolling" ], "result": "issues" }, { "id": "explore", "description": "Explore/listing archetype: category discovery and unauthenticated access wall.", "url": "https://in.pinterest.com/ideas", "conditions": [ "desktop", "unauthenticated" ], "result": "issues" }, { "id": "board", "description": "Board/detail content archetype: rich entity metadata, content rendering and crawler visibility.", "url": "https://in.pinterest.com/pinterestuk/elevated-blokette-stylish-at-the-stadium/", "conditions": [ "desktop", "crawler without JavaScript" ], "result": "pass" }, { "id": "login", "description": "Primary account-flow archetype: labels, autocomplete, empty submission, recovery and auth options.", "url": "https://in.pinterest.com/login/", "conditions": [ "desktop", "empty form submission" ], "result": "issues" }, { "id": "not-found", "description": "Failure/recovery path using a deliberately nonexistent route.", "url": "https://in.pinterest.com/nonexistent-web-uplift-audit-path", "conditions": [ "desktop" ], "result": "issues" } ], "findings": [ { "id": "F01", "severity": "high", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "modern-web-guidance", "summary": "The public experience ignores the system dark-colour preference.", "evidence": "The dark-mode screenshot remains a white/light-grey surface and the DOM reports color-scheme: normal under prefers-color-scheme: dark.", "suggestedFix": "Declare color-scheme and provide preference-driven dark surface, text, image-overlay and dialog tokens.", "effort": "small", "artifacts": [ "evidence/home-dark.png", "evidence/home-dom.json" ] }, { "id": "F02", "severity": "medium", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "implement-natural-interactions", "principleCheckId": "view-transitions", "guidanceId": "same-document-transitions", "guidanceCategory": "modern-web-guidance", "summary": "Major state changes are abrupt.", "evidence": "The interaction video shows the consent layer disappearing and content changing without a directional or continuity cue; no active View Transition was observed.", "suggestedFix": "Use same-document View Transitions for major modal/state changes, with reduced-motion fallbacks.", "effort": "medium", "artifacts": [ "evidence/interaction.mp4", "evidence/preferences-probe.json" ] }, { "id": "F03", "severity": "medium", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "provide-guided-navigation", "principleCheckId": "scroll-state-aware-chrome", "guidanceId": "shrinking-header-on-scroll", "guidanceCategory": "modern-web-guidance", "summary": "The site chrome does not communicate scroll state.", "evidence": "The interaction video shows a long content page with no progress or scroll-state response in its navigation chrome.", "suggestedFix": "Use a scroll-state container query or a lightweight progress affordance for long discovery surfaces.", "effort": "medium", "artifacts": [ "evidence/interaction.mp4" ] }, { "id": "F04", "severity": "high", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "maximize-content-reduce-noise", "principleCheckId": "no-intrusive-interruptions", "guidanceId": "light-dismiss-a-dialog", "guidanceCategory": "modern-web-guidance", "summary": "Load-time overlays repeatedly obscure the primary content.", "evidence": "Desktop, Explore and login captures all open with a viewport-dimming consent or login layer over the content; Explore is blocked by login before interaction.", "suggestedFix": "Keep public exploration usable before sign-in, defer non-essential prompts, and preserve an immediate, obvious dismiss path.", "effort": "large", "artifacts": [ "evidence/home-desktop.png", "evidence/ideas.png", "evidence/login.png" ] }, { "id": "F05", "severity": "medium", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "maximize-content-reduce-noise", "principleCheckId": "semantic-dismissible-primitives", "guidanceId": "declarative-dialog-popover-control", "guidanceCategory": "modern-web-guidance", "summary": "The cookie modal is an ad-hoc ARIA dialog rather than the platform dialog primitive.", "evidence": "The document probe finds a DIV role=dialog aria-modal=true; no is present.", "suggestedFix": "Implement the modal with , showModal(), close(), focus restoration, Escape handling and a non-modal fallback where appropriate.", "effort": "medium", "artifacts": [ "evidence/document-probe.json", "evidence/home-dom.json" ] }, { "id": "F06", "severity": "critical", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "adapt-to-the-form-factor", "principleCheckId": "responsive-no-horizontal-scroll", "guidanceId": "fluid-scaling", "guidanceCategory": "modern-web-guidance", "summary": "The mobile homepage is horizontally clipped and unusable.", "evidence": "At 360x800, layout reports scrollWidth 929 versus visual viewport 360, 569 px overflow; the screenshot clips headings and most of the consent dialog off-screen.", "suggestedFix": "Remove desktop minimum widths, size overlays with max-inline-size/min(), and verify intrinsic reflow at 320-400 CSS px.", "effort": "medium", "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json" ] }, { "id": "F07", "severity": "high", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "guidanceId": "accessibility", "guidanceCategory": "modern-web-guidance", "summary": "Keyboard focus and touch-target treatment are insufficient.", "evidence": "The focused skip link computes outline:none and box-shadow:none; Lighthouse fails target-size for the Pinterest app controls.", "suggestedFix": "Provide a strong :focus-visible treatment and ensure unobscured targets have at least 24x24 CSS px safe space, preferably 44x44 for primary touch controls.", "effort": "small", "artifacts": [ "evidence/preferences-probe.json", "evidence/lighthouse.json" ] }, { "id": "F08", "severity": "high", "confidence": "high", "pathId": "not-found", "url": "https://in.pinterest.com/", "principleId": "support-core-task-success", "principleCheckId": "clear-system-state-and-recovery", "guidanceId": "persistent-toast-notifications", "guidanceCategory": "modern-web-guidance", "summary": "Failure and recovery states are misleading or absent.", "evidence": "A nonexistent URL renders the normal homepage rather than a clear 404/recovery state, while HAR records two 404 API calls and Lighthouse logs them as console errors.", "suggestedFix": "Return an actual 404 page/status with useful navigation, and expose actionable inline retry/error states for failed data calls.", "effort": "medium", "artifacts": [ "evidence/not-found.png", "evidence/home-summary.json", "evidence/lighthouse.json" ] }, { "id": "F09", "severity": "critical", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "performance", "guidanceCategory": "modern-web-guidance", "summary": "Core Web Vitals are far outside good thresholds.", "evidence": "Lighthouse reports LCP 18.4 s, CLS 0.463 and TBT 510 ms (performance score 0.23); trace corroborates 4.21 s LCP and two long tasks in a separate run.", "suggestedFix": "Prioritise the LCP resource, reserve layout space, defer non-critical modules/media, and measure each representative template against CWV budgets.", "effort": "large", "artifacts": [ "evidence/lighthouse.json", "evidence/home-trace-summary.json", "evidence/home-trace.json" ] }, { "id": "F10", "severity": "high", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-script-priority", "guidanceCategory": "modern-web-guidance", "summary": "The unauthenticated landing page ships a very heavy dependency graph.", "evidence": "HAR captures 159 requests and 6,436,533 transferred bytes, including 78 scripts (2.90 MB), 45 images (2.46 MB) and 4 media requests (820 KB).", "suggestedFix": "Reduce the unauthenticated critical graph, lazy-load below-fold and auth dependencies, and avoid loading video until it provides visible user value.", "effort": "large", "artifacts": [ "evidence/home-summary.json", "evidence/home.har" ] }, { "id": "F11", "severity": "high", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "identify-heavy-scripts", "guidanceCategory": "modern-web-guidance", "summary": "JavaScript dominates the initial load.", "evidence": "HAR records 78 script requests and 2.90 MB script transfer; Lighthouse identifies large first-party bundles and missing/403 source maps.", "suggestedFix": "Run route-level coverage, split unauth landing/auth code, remove duplicate dependencies, and serve usable source maps to authorised tooling.", "effort": "large", "artifacts": [ "evidence/home-summary.json", "evidence/lighthouse.json" ] }, { "id": "F12", "severity": "medium", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "be-inclusive", "principleCheckId": "zoom-reflow-targets-and-media", "guidanceId": "fluid-scaling", "guidanceCategory": "modern-web-guidance", "summary": "Reflow and touch target accessibility fail on mobile.", "evidence": "The 360 px screenshot is clipped with 569 px horizontal overflow and Lighthouse fails the target-size audit.", "suggestedFix": "Allow 320 px reflow without two-dimensional scrolling and enlarge/space interactive targets.", "effort": "medium", "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json", "evidence/lighthouse.json" ] }, { "id": "F13", "severity": "medium", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "follow-best-practices", "principleCheckId": "no-console-errors", "guidanceId": "html", "guidanceCategory": "modern-web-guidance", "summary": "The page logs avoidable runtime and network errors.", "evidence": "Lighthouse records a FedCM NetworkError and two first-party 404 requests during load; HAR confirms 404 responses.", "suggestedFix": "Handle expected identity-provider states without console errors and fix or suppress invalid first-party requests.", "effort": "small", "artifacts": [ "evidence/lighthouse.json", "evidence/home-summary.json" ] }, { "id": "F14", "severity": "medium", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "guidanceId": "optimize-image-priority", "guidanceCategory": "modern-web-guidance", "summary": "Image delivery lacks robust sizing and responsive optimisation.", "evidence": "The image probe reports 36/36 images without width/height, 27 oversized, 35 below-fold not lazy, 11 without srcset and no modern-format images.", "suggestedFix": "Set intrinsic dimensions/aspect-ratio, responsive srcset/sizes, lazy-load non-LCP images and negotiate AVIF/WebP where quality allows.", "effort": "medium", "artifacts": [ "evidence/home-images.json" ] }, { "id": "F15", "severity": "medium", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "follow-best-practices", "principleCheckId": "browser-platform-hygiene", "guidanceId": "html", "guidanceCategory": "modern-web-guidance", "summary": "Browser platform hygiene has measurable regressions.", "evidence": "Lighthouse reports a BFCache blocker and missing/403 source maps for large first-party modules.", "suggestedFix": "Remove the BFCache blocker and make production source maps available to authorised diagnostics or stop advertising inaccessible map URLs.", "effort": "medium", "artifacts": [ "evidence/lighthouse.json" ] }, { "id": "F16", "severity": "high", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "be-discoverable", "principleCheckId": "canonical-and-indexing-signals", "guidanceId": "html", "guidanceCategory": "modern-web-guidance", "summary": "The India homepage publishes an invalid cross-locale canonical.", "evidence": "The live DOM canonical is https://www.pinterest.com/ while the audited URL is https://in.pinterest.com/; Lighthouse fails the canonical audit.", "suggestedFix": "Publish a valid self/locale canonical consistent with hreflang and sitemap signals.", "effort": "small", "artifacts": [ "evidence/home-recon.json", "evidence/lighthouse.json", "evidence/robots-sitemap.txt" ] }, { "id": "F17", "severity": "high", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "be-discoverable", "principleCheckId": "crawlable-and-mobile-friendly", "guidanceId": "html", "guidanceCategory": "modern-web-guidance", "summary": "The homepage core content is effectively a JavaScript shell for non-JS crawlers.", "evidence": "Discoverability reports 1% rendered-word coverage, isJsShell:true and no raw-HTML h1; the crawler screenshot contains almost no core content.", "suggestedFix": "Server-render meaningful homepage headings, copy and crawlable discovery links, then progressively enhance.", "effort": "large", "artifacts": [ "evidence/discoverability", "evidence/discoverability-rendered.png", "evidence/discoverability-crawler.png" ] }, { "id": "F18", "severity": "high", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "guidanceCategory": "modern-web-guidance", "summary": "Cookie and CSP posture is weaker than the transport baseline.", "evidence": "Cookies audit finds five cookies flagged insecure, including non-Secure g_state, _b and _routing_id and multiple SameSite=None cookies; CSP permits unsafe-inline and Permissions-Policy is missing. No client secrets were found.", "suggestedFix": "Mark all HTTPS cookies Secure, narrow SameSite=None to justified cases, remove unsafe-inline where nonce/strict-dynamic can cover scripts/styles, and define Permissions-Policy.", "effort": "medium", "artifacts": [ "evidence/cookies.json", "evidence/headers.json", "evidence/secrets.json" ] }, { "id": "F19", "severity": "high", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "be-private-and-secure", "principleCheckId": "data-minimisation-and-third-parties", "guidanceId": "privacy", "guidanceCategory": "modern-web-guidance", "summary": "Substantial tracking and third-party activity occurs on the initial experience.", "evidence": "Tracker evidence finds nine third-party origins and Pinterest tracker endpoints; HAR attributes 137/159 requests and 6.28 MB to cross-origin hosts before consent was acted on.", "suggestedFix": "Gate non-essential analytics behind consent, minimise unauthenticated telemetry, batch necessary events and document each third party.", "effort": "large", "artifacts": [ "evidence/trackers.json", "evidence/home-summary.json", "evidence/home.har" ] }, { "id": "F20", "severity": "medium", "confidence": "high", "pathId": "login", "url": "https://in.pinterest.com/login/", "principleId": "be-private-and-secure", "principleCheckId": "in-context-permissions-and-modern-auth", "guidanceId": "passkeys", "guidanceCategory": "modern-web-guidance", "summary": "The observed login surface does not offer phishing-resistant authentication.", "evidence": "Login exposes email/password and Google/QR options; no passkey/WebAuthn affordance was observed.", "suggestedFix": "Offer passkey sign-in and registration alongside recovery-safe alternatives, with conditional UI where supported.", "effort": "large", "artifacts": [ "evidence/login.png", "evidence/login-probe.json" ] }, { "id": "F21", "severity": "high", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "be-resilient", "principleCheckId": "progressive-enhancement", "guidanceId": "stabilize-reactive-state", "guidanceCategory": "modern-web-guidance", "summary": "The homepage does not progressively expose its core discovery content.", "evidence": "Raw HTML is 1.1 MB yet contains only 7 content tokens and 1% of rendered words; without JavaScript the homepage is a shell. A board detail fares better at 57%.", "suggestedFix": "Server-render the public discovery shell and key links/content, then hydrate enhancements without replacing the usable baseline.", "effort": "large", "artifacts": [ "evidence/discoverability", "evidence/discoverability-crawler.png", "evidence/board-discoverability" ] }, { "id": "F22", "severity": "high", "confidence": "high", "pathId": "not-found", "url": "https://in.pinterest.com/", "principleId": "be-resilient", "principleCheckId": "network-and-http-failure-states", "guidanceId": "persistent-toast-notifications", "guidanceCategory": "modern-web-guidance", "summary": "HTTP failures do not lead to intentional recovery UI.", "evidence": "The synthetic missing route shows the normal homepage and HAR records failed first-party calls without a visible recovery state.", "suggestedFix": "Use correct HTTP statuses and dedicated empty/error states with retry, back and home actions.", "effort": "medium", "artifacts": [ "evidence/not-found.png", "evidence/home-summary.json" ] }, { "id": "F23", "severity": "medium", "confidence": "high", "pathId": "login", "url": "https://in.pinterest.com/login/", "principleId": "be-trustworthy", "principleCheckId": "humane-error-handling", "guidanceId": "accessible-error-announcement", "guidanceCategory": "modern-web-guidance", "summary": "The login form did not expose visible empty-submit guidance in the exercised state.", "evidence": "After requestSubmit() with empty email and password, the captured form remains visually unchanged with no clear inline error or recovery instruction.", "suggestedFix": "Validate after interaction, focus the first invalid field and announce concise errors with an aria-live summary.", "effort": "small", "artifacts": [ "evidence/login-invalid.png", "evidence/login-probe.json" ] }, { "id": "F24", "severity": "high", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "deliver-optimized-decorative-images", "guidanceCategory": "modern-web-guidance", "summary": "The media payload is disproportionate for the first unauthenticated viewport.", "evidence": "HAR transfers 2.46 MB of images and 820 KB of media; image audit finds 27 oversized and zero modern-format images.", "suggestedFix": "Serve correctly sized AVIF/WebP responsive images and defer below-fold/video resources until needed.", "effort": "medium", "artifacts": [ "evidence/home-summary.json", "evidence/home-images.json" ] }, { "id": "F25", "severity": "high", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "be-sustainable", "principleCheckId": "no-wasteful-work", "guidanceId": "deprioritize-background-fetches", "guidanceCategory": "modern-web-guidance", "summary": "Initial background work and fetching are excessive.", "evidence": "The landing page performs 159 requests, including 78 scripts and 19 fetch/XHR requests, while Lighthouse reaches only 0.23 performance.", "suggestedFix": "Budget unauthenticated work, conditionally load auth/analytics modules, and deprioritise background fetches.", "effort": "large", "artifacts": [ "evidence/home-summary.json", "evidence/lighthouse.json" ] }, { "id": "F26", "severity": "medium", "confidence": "high", "pathId": "home", "url": "https://in.pinterest.com/", "principleId": "be-memory-efficient", "principleCheckId": "bounded-footprint", "guidanceId": "identify-heavy-scripts", "guidanceCategory": "modern-web-guidance", "summary": "The baseline memory footprint is high for an unauthenticated landing page.", "evidence": "Heap summary contains about 1.12 million V8 snapshot nodes and 71.4 MB self size; runtime reports 56.0 MB used JS heap and 1,294 DOM elements. Repeated scroll did not increase total self size.", "suggestedFix": "Reduce module/object populations on the public shell and track a retained-heap budget per route.", "effort": "large", "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/runtime-probe.json" ] } ], "taskList": [ { "id": "T1", "title": "Fix 360px reflow and dialog sizing", "priority": 1, "findingIds": [ "F06", "F07", "F12" ], "guidanceId": "fluid-scaling", "status": "open" }, { "id": "T2", "title": "Meet CWV and public-shell payload budgets", "priority": 2, "findingIds": [ "F09", "F10", "F11", "F24", "F25", "F26" ], "guidanceId": "performance", "status": "open" }, { "id": "T3", "title": "Server-render the public discovery shell and correct canonical/error statuses", "priority": 3, "findingIds": [ "F08", "F16", "F17", "F21", "F22" ], "guidanceId": "stabilize-reactive-state", "status": "open" }, { "id": "T4", "title": "Harden cookie, CSP, permission and consent-gated telemetry posture", "priority": 4, "findingIds": [ "F18", "F19" ], "guidanceId": "security", "status": "open" }, { "id": "T5", "title": "Make prompts content-first and platform-semantic", "priority": 5, "findingIds": [ "F04", "F05" ], "guidanceId": "declarative-dialog-popover-control", "status": "open" }, { "id": "T6", "title": "Improve keyboard focus, auth and humane form recovery", "priority": 6, "findingIds": [ "F07", "F20", "F23" ], "guidanceId": "accessible-error-announcement", "status": "open" }, { "id": "T7", "title": "Add preference-aware theme and continuity cues", "priority": 7, "findingIds": [ "F01", "F02", "F03" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "T8", "title": "Eliminate runtime/platform errors and fix image delivery", "priority": 8, "findingIds": [ "F13", "F14", "F15" ], "guidanceId": "optimize-image-priority", "status": "open" } ], "budget": { "wallClockSeconds": 900, "pathCount": 5, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-23T06-09-44-686Z" }