{ "url": "https://www.linkedin.com", "auditedAt": "2026-07-22T10:30:51.995Z", "mode": "report", "status": "completed", "statusDetail": "Coverage-complete audit of six representative public guest paths. Authenticated feed/profile, messaging, recruiter/admin, payment, and post-auth account settings were not covered because no credentials were provided.", "page": { "appType": "mpa", "framework": "LinkedIn guest frontend (server-rendered HTML with client enhancement)", "notes": "Public MPA/hybrid surfaces. Home, Jobs and Top Content retain substantial content without JavaScript; authenticated product surfaces were outside this run." }, "evidenceUsed": [ "screenshot", "dom", "layout-metrics", "evaluate-probe", "trace", "har", "discoverability", "headers", "cookies", "trackers", "images", "secrets", "heap-summary", "lighthouse" ], "guidanceConsulted": [ "accessibility", "accessible-error-announcement", "language-detection", "language-model", "summarizer", "translator", "css", "highlight-text-ranges", "css-layout", "animated-select-picker", "autofill-address-form", "autofill-highlight-inputs", "autofill-payment-form", "autofill-sign-in-form", "autofill-sign-up-form", "brand-consistent-forms", "branded-select-styling", "custom-select-picker-layouts", "form-fields-automatically-fit-contents", "forms", "required-field-feedback", "rich-media-picker", "select-menu-interaction", "validate-input-after-interaction", "html", "passkey-authentication", "passkey-conditional-create", "passkey-management", "passkey-reauthentication", "passkey-registration", "passkeys", "batch-analytics-events", "break-up-long-tasks", "calculate-total-foreground-time", "conditional-async-dependencies", "defer-rendering-heavy-content", "defer-work-until-scroll-ends", "deprioritize-background-fetches", "detect-initial-visibility-state", "efficient-background-processing", "faster-spa-view-transitions", "full-session-analytics", "identify-heavy-scripts", "identify-inp-causes", "improve-next-page-load-performance", "interactions-in-complex-layouts", "optimize-image-priority", "optimize-preload-priority", "optimize-script-priority", "performance", "resolution-optimized-pseudo-elements", "schedule-tasks-by-priority", "sequence-distributed-events", "privacy", "security", "adapt-scrollbar-to-contrast-preferences", "anchor-positioning-tab-underline", "animate-element-entry-exit", "animate-to-from-top-layer", "animate-to-intrinsic-sizes", "apply-webgl-shaders", "calculate-event-differentials", "calculate-with-intrinsic-sizes", "capture-location-agnostic-data", "carousel-slide-effects", "carousel-snap-highlights", "child-state-based-styling", "complex-shapes", "component-specific-light-dark-theme", "consistent-cross-document-transitions", "content-based-styling", "coordinate-global-events", "cross-document-transitions", "customize-scrollbar-color-and-thickness", "dark-mode", "declarative-button-actions", "declarative-dialog-popover-control", "deliver-optimized-decorative-images", "design-token-reactivity", "directional-navigation-transitions", "dynamic-sibling-animations", "dynamic-sibling-styling", "export-html-media-from-canvas", "expose-canvas-content-to-browser-features", "flicker-free-client-side-ab-testing", "fluid-scaling", "format-human-readable-durations", "group-element-transitions", "improve-text-layout-and-legibility", "individual-transform-properties", "interactive-content-in-3d-scenes", "interactive-content-reveal", "interest-triggered-action-previews", "interest-triggered-tooltips", "light-dismiss-a-dialog", "manage-recurring-intervals", "model-partial-time-concepts", "move-dom-element-without-losing-state", "navigation-drawer", "overflow-clipping-control", "parallax-scroll-effects", "persistent-app-tours", "persistent-toast-notifications", "persistent-top-layer-ui", "physics-based-easing", "platform-controls-dismiss-dialog", "position-aware-tooltips", "precise-text-alignment", "prevent-text-wrapping", "pull-to-reveal", "reduce-style-repetition", "resilient-context-menus-and-nested-dropdowns", "same-document-transitions", "scroll-entry-exit-effects", "scroll-position-aware-elements", "scroll-progress-indicator", "scroll-snap-realtime-feedback", "scroll-snap-state-sync", "scroll-target-on-load", "scrollability-affordance-hints", "scrollytelling", "search-hidden-content", "shaped-cutouts", "shrinking-header-on-scroll", "size-aware-styling", "soft-edge-content-fade", "stabilize-reactive-state", "stack-drill-down", "style-parent-with-has", "support-global-calendar-systems", "swipe-to-remove", "visually-stable-font-fallbacks", "visually-stable-mixed-fonts", "visually-texture-content", "agentic-forms", "agentic-javascript-tools", "webmcp" ], "artifacts": [ { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "Guest homepage at 1440x1000", "condition": "desktop" }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "Guest homepage at 360x800", "condition": "mobile 360x800", "findingIds": [ "LI-003" ] }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "Guest homepage under dark preference", "condition": "prefers-color-scheme: dark", "findingIds": [ "LI-001" ] }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "Rendered homepage DOM and document metadata" }, { "type": "other", "path": "evidence/home-probe.json", "caption": "Homepage semantics, metadata, forms, media, and feature-use probe", "findingIds": [ "LI-001", "LI-002", "LI-003", "LI-016", "LI-021" ] }, { "type": "other", "path": "evidence/home-platform-probe.json", "caption": "Manifest, service worker, permissions, and locale-sensitive content probe" }, { "type": "other", "path": "evidence/home-reduced-motion.json", "caption": "Animation probe under reduced-motion preference" }, { "type": "other", "path": "evidence/home-focus.json", "caption": "Keyboard focus visibility probe" }, { "type": "layout", "path": "evidence/home-layout-mobile.json", "caption": "Homepage narrow layout, CLS, long tasks, overflow", "findingIds": [ "LI-003" ] }, { "type": "trace", "path": "evidence/home-trace.json", "caption": "Homepage DevTools performance trace" }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "Compact homepage trace metrics", "findingIds": [ "LI-009" ] }, { "type": "har", "path": "evidence/home.har", "caption": "Homepage network archive", "findingIds": [ "LI-010" ] }, { "type": "har-summary", "path": "evidence/home-summary.json", "caption": "Compact homepage network signals", "findingIds": [ "LI-010", "LI-020" ] }, { "type": "discoverability", "path": "evidence/home-discoverability.json", "caption": "Homepage raw HTML versus rendered content" }, { "type": "screenshot", "path": "evidence/home-discoverability-rendered.png", "caption": "Homepage rendered browser view" }, { "type": "screenshot", "path": "evidence/home-discoverability-crawler.png", "caption": "Homepage crawler/no-JS view" }, { "type": "other", "path": "evidence/home-headers.json", "caption": "Security response-header audit", "findingIds": [ "LI-017" ] }, { "type": "other", "path": "evidence/home-cookies.json", "caption": "Cookie attribute audit", "findingIds": [ "LI-017" ] }, { "type": "other", "path": "evidence/home-trackers.json", "caption": "Third-party origin and tracker audit", "findingIds": [ "LI-020" ] }, { "type": "other", "path": "evidence/home-images.json", "caption": "Image dimensions, responsive sources, loading and alt audit", "findingIds": [ "LI-014", "LI-019" ] }, { "type": "other", "path": "evidence/home-secrets.json", "caption": "Client-side secret scan" }, { "type": "heap", "path": "evidence/home-heap-baseline.json", "caption": "Homepage baseline heap summary" }, { "type": "lighthouse", "path": "evidence/home-lighthouse.json", "caption": "Lighthouse report", "findingIds": [ "LI-009", "LI-010" ] }, { "type": "other", "path": "evidence/home-lighthouse-summary.json", "caption": "Selected Lighthouse audit details", "findingIds": [ "LI-011", "LI-013", "LI-014", "LI-015", "LI-019" ] }, { "type": "screenshot", "path": "evidence/jobs-desktop.png", "caption": "Jobs search with automatic authentication modal", "findingIds": [ "LI-004", "LI-005", "LI-007", "LI-012" ] }, { "type": "dom", "path": "evidence/jobs-dom.json", "caption": "Rendered jobs DOM" }, { "type": "layout", "path": "evidence/jobs-layout-mobile.json", "caption": "Jobs narrow layout and stability" }, { "type": "other", "path": "evidence/jobs-probe.json", "caption": "Jobs forms, dialogs and metadata probe", "findingIds": [ "LI-004", "LI-005", "LI-012", "LI-016", "LI-021" ] }, { "type": "discoverability", "path": "evidence/jobs-discoverability.json", "caption": "Jobs raw HTML versus rendered content" }, { "type": "screenshot", "path": "evidence/jobs-discoverability-rendered.png", "caption": "Jobs browser view" }, { "type": "screenshot", "path": "evidence/jobs-discoverability-crawler.png", "caption": "Jobs crawler/no-JS view" }, { "type": "screenshot", "path": "evidence/content-desktop.png", "caption": "Top Content desktop page" }, { "type": "dom", "path": "evidence/content-dom.json", "caption": "Rendered Top Content DOM", "findingIds": [ "LI-006" ] }, { "type": "layout", "path": "evidence/content-layout-mobile.json", "caption": "Top Content mobile layout showing 980px scaled viewport", "findingIds": [ "LI-006" ] }, { "type": "other", "path": "evidence/content-probe.json", "caption": "Top Content metadata and controls probe", "findingIds": [ "LI-006", "LI-016" ] }, { "type": "discoverability", "path": "evidence/content-discoverability.json", "caption": "Top Content raw HTML versus rendered content" }, { "type": "screenshot", "path": "evidence/content-discoverability-rendered.png", "caption": "Top Content browser view" }, { "type": "screenshot", "path": "evidence/content-discoverability-crawler.png", "caption": "Top Content crawler/no-JS view" }, { "type": "heap", "path": "evidence/content-heap-baseline.json", "caption": "Heap before repeated show-more interaction" }, { "type": "heap", "path": "evidence/content-heap-post.json", "caption": "Heap after ten repeated show-more interactions" }, { "type": "screenshot", "path": "evidence/login-desktop.png", "caption": "Sign-in form", "findingIds": [ "LI-018" ] }, { "type": "dom", "path": "evidence/login-dom.json", "caption": "Rendered login DOM" }, { "type": "layout", "path": "evidence/login-layout-mobile.json", "caption": "Login narrow layout and stability" }, { "type": "other", "path": "evidence/login-probe.json", "caption": "Login labels, autocomplete, focus, and passkey probe", "findingIds": [ "LI-008" ] }, { "type": "screenshot", "path": "evidence/login-invalid2.png", "caption": "Login after empty submit attempt", "findingIds": [ "LI-008" ] }, { "type": "screenshot", "path": "evidence/signup-desktop.png", "caption": "Signup form", "findingIds": [ "LI-018" ] }, { "type": "dom", "path": "evidence/signup-dom.json", "caption": "Rendered signup DOM" }, { "type": "layout", "path": "evidence/signup-layout-mobile.json", "caption": "Signup narrow layout and stability" }, { "type": "screenshot", "path": "evidence/signup-invalid2.png", "caption": "Signup after empty submit attempt", "findingIds": [ "LI-008" ] }, { "type": "screenshot", "path": "evidence/404.png", "caption": "Unknown-path recovery page" } ], "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": "Visual capture on representative home path", "evidence": "Dark capture remains light; computed color-scheme is normal.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dark.png" ], "findingIds": [ "LI-001" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Reduced-motion emulation was active and getAnimations() returned no running animations.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-reduced-motion.json" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Lighthouse color-contrast audit passed; controls remain legible in captures.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse-summary.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Live probe found no view-transition usage on route/state-rich guest surfaces.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json" ], "findingIds": [ "LI-002" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "No animation-timeline use or active document animations were found; scrolling uses native behavior without main-thread animation handlers observed.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "pass", "confidence": "medium", "method": "Visual capture on representative home path", "evidence": "Representative guest surfaces use native page scrolling and standard controls; no swipe-only or custom pointer gesture was required.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile.png" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "The mobile page is 7,330px tall but no progress or scroll-state navigation affordance is visible.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-layout-mobile.json" ], "findingIds": [ "LI-003" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "pass", "confidence": "medium", "method": "Visual capture on representative jobs path", "evidence": "The only prominent overlay is a centered modal, which remains within the viewport and does not require element anchoring.", "pathIds": [ "jobs" ], "artifacts": [ "evidence/jobs-desktop.png" ] }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "pass", "confidence": "medium", "method": "Visual capture on representative content path", "evidence": "Heading hierarchy, selected category, breadcrumbs, and card actions provide visible orientation and next-step cues.", "pathIds": [ "content" ], "artifacts": [ "evidence/content-desktop.png" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "issues", "confidence": "high", "method": "Visual capture on representative jobs path", "evidence": "An authentication modal automatically obscures jobs results before interaction.", "pathIds": [ "jobs" ], "artifacts": [ "evidence/jobs-desktop.png" ], "findingIds": [ "LI-004" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative jobs path", "evidence": "Five custom SECTION role=dialog nodes are present, four empty and the visible one unnamed.", "pathIds": [ "jobs" ], "artifacts": [ "evidence/jobs-probe.json" ], "findingIds": [ "LI-005" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "pass", "confidence": "high", "method": "Visual capture on representative home path", "evidence": "The first viewport gives most area to purpose, actions, and illustration; navigation and consent chrome are bounded.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative content path", "evidence": "Top Content lacks viewport meta and renders at a 980px layout viewport scaled to 360px.", "pathIds": [ "content" ], "artifacts": [ "evidence/content-layout-mobile.json" ], "findingIds": [ "LI-006" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative content path", "evidence": "The content template remains a scaled desktop canvas on mobile rather than adapting components to the narrow form factor.", "pathIds": [ "content" ], "artifacts": [ "evidence/content-layout-mobile.json" ], "findingIds": [ "LI-006" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Keyboard focus produced :focus-visible with an auto outline; Lighthouse target-size audit passed.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-focus.json" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "high", "method": "Visual capture on representative home path", "evidence": "The first viewport states the professional-network purpose and presents sign-in/join actions with clear hierarchy.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "issues", "confidence": "high", "method": "Visual capture on representative jobs path", "evidence": "The selected jobs journey is stopped by an immediate authentication modal.", "pathIds": [ "jobs" ], "artifacts": [ "evidence/jobs-desktop.png" ], "findingIds": [ "LI-007" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "issues", "confidence": "high", "method": "Visual capture on representative login path", "evidence": "Empty submit produced no visible error or recovery instruction in the exercised login/signup state.", "pathIds": [ "login" ], "artifacts": [ "evidence/login-invalid2.png" ], "findingIds": [ "LI-008" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Lighthouse LCP was 3.5s, above the good threshold; CLS was 0.025 and TBT 0ms.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse.json" ], "findingIds": [ "LI-009" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Observed homepage CLS was 0.0023; jobs 0.0276, login 0.0337, and signup 0, all below 0.1.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-layout-mobile.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Trace found one 145ms long task and 95ms TBT; Lighthouse measured 0ms TBT under its run.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-trace-summary.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "HAR recorded 605KB including 505KB script and a parser-inserted VeryHigh-priority stylesheet.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json" ], "findingIds": [ "LI-010" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Lighthouse estimates 309KiB unused JS and 44KiB unused CSS.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse-summary.json" ], "findingIds": [ "LI-011" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative jobs path", "evidence": "Jobs DOM contains five aria-modal dialogs, including four empty duplicates and one unnamed visible dialog.", "pathIds": [ "jobs" ], "artifacts": [ "evidence/jobs-probe.json" ], "findingIds": [ "LI-012" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Lighthouse color-contrast audit passed with score 1.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse-summary.json" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Homepage has sequential headings/main landmark and a visible keyboard-focused skip link.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-focus.json" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "pass", "confidence": "high", "method": "Visual capture on representative content path", "evidence": "Body copy, headings, line lengths, and labels are legible at desktop in representative captures.", "pathIds": [ "content" ], "artifacts": [ "evidence/content-desktop.png" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative content path", "evidence": "Top Content omits viewport meta and scales a 980px canvas, failing true narrow-screen reflow.", "pathIds": [ "content" ], "artifacts": [ "evidence/content-layout-mobile.json" ], "findingIds": [ "LI-006" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Lighthouse logged ERR_NAME_NOT_RESOLVED for the ponf.linkedin.com tracking pixel.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse-summary.json" ], "findingIds": [ "LI-013" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Doctype/charset are sound, but all seven audited images lack dimensions/srcset and Lighthouse found a distorted hero ratio.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-images.json" ], "findingIds": [ "LI-014" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Lighthouse found missing source maps and three bfcache blockers tied to no-store.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse-summary.json" ], "findingIds": [ "LI-015" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Homepage and representative content probes expose descriptive titles and meta descriptions.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative jobs path", "evidence": "Guest links have hrefs and crawler coverage is 80-100%; Top Content mobile-friendliness is accounted for under the viewport findings.", "pathIds": [ "jobs" ], "artifacts": [ "evidence/jobs-discoverability.json" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Canonical, extensive hreflang, robots signal, HTTPS 200 response, robots.txt-discoverable public pages were observed.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dom.json" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative jobs path", "evidence": "Open Graph is present, but probes found zero JSON-LD on homepage, jobs, and Top Content.", "pathIds": [ "jobs" ], "artifacts": [ "evidence/jobs-probe.json" ], "findingIds": [ "LI-016" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "HTTPS, HSTS, CSP, nosniff and frame protections pass, but Referrer-Policy and Permissions-Policy are absent.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json" ], "findingIds": [ "LI-017" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Consent offers equal Accept/Reject choices, no known tracker domains were matched, and five secondary origins were observed.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-trackers.json" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative login path", "evidence": "No permission request on load was found; login exposes username webauthn and current-password autocomplete.", "pathIds": [ "login" ], "artifacts": [ "evidence/login-probe.json" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Referrer-Policy and Permissions-Policy are missing, CSP permits unsafe-inline styles, and all cookies are SameSite=None.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json" ], "findingIds": [ "LI-017" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative content path", "evidence": "Raw HTML retains 98-100% of rendered content words on home/content and 80% on jobs; no JS shell was detected.", "pathIds": [ "content" ], "artifacts": [ "evidence/content-discoverability.json" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "pass", "confidence": "high", "method": "Visual capture on representative jobs path", "evidence": "The centered modal remains within the viewport, can be dismissed, and the representative pages rendered without fatal runtime failure.", "pathIds": [ "jobs" ], "artifacts": [ "evidence/jobs-desktop.png" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "not-applicable", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "No manifest or service-worker registration exists; offline installation is not a reasonable requirement for this public acquisition surface.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-platform-probe.json" ], "reason": "No manifest or service-worker registration exists; offline installation is not a reasonable requirement for this public acquisition surface." }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "pass", "confidence": "high", "method": "Visual capture on representative not-found path", "evidence": "An unknown path returns a clear Page not found state with Help Center and feed recovery actions.", "pathIds": [ "not-found" ], "artifacts": [ "evidence/404.png" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "All representative documents declare en/en-US; the homepage publishes extensive hreflang alternatives and language controls.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dom.json" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "pass", "confidence": "medium", "method": "Objective browser/evidence probe on representative content path", "evidence": "Language selection and localized regional home variants are exposed; visible content uses locale-neutral relative-age labels.", "pathIds": [ "content" ], "artifacts": [ "evidence/content-probe.json" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "not-applicable", "confidence": "medium", "method": "Visual capture on representative content path", "evidence": "No absolute event scheduling or time-zone-sensitive task appears in the unauthenticated representative scope; only relative post ages are shown.", "pathIds": [ "content" ], "artifacts": [ "evidence/content-desktop.png" ], "reason": "No absolute event scheduling or time-zone-sensitive task appears in the unauthenticated representative scope; only relative post ages are shown." }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "issues", "confidence": "high", "method": "Visual capture on representative login path", "evidence": "Login and signup preselect persistent-session checkboxes, creating a privacy-affecting default users must undo.", "pathIds": [ "login" ], "artifacts": [ "evidence/login-desktop.png" ], "findingIds": [ "LI-018" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "issues", "confidence": "high", "method": "Visual capture on representative login path", "evidence": "Empty-submit attempts showed no visible inline or summary error state.", "pathIds": [ "login" ], "artifacts": [ "evidence/login-invalid2.png" ], "findingIds": [ "LI-008" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative login path", "evidence": "Login inputs use username webauthn and current-password autocomplete with explicit visible labels.", "pathIds": [ "login" ], "artifacts": [ "evidence/login-probe.json" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "pass", "confidence": "high", "method": "Visual capture on representative signup path", "evidence": "Signup shows terms before action, login exposes recovery and WebAuthn autocomplete, and no hidden charge/commercial step appears.", "pathIds": [ "signup" ], "artifacts": [ "evidence/signup-desktop.png" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "All seven audited images lack explicit dimensions and responsive srcset; one hero aspect ratio is distorted.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-images.json" ], "findingIds": [ "LI-019" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "Idle load showed one bounded long task and no autoplay media or continuing animations; no sustained background work was observed.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-trace-summary.json" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "576KB of 605KB transferred came from secondary origins and 505KB was script.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json" ], "findingIds": [ "LI-020" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "issues", "confidence": "medium", "method": "Objective browser/evidence probe on representative jobs path", "evidence": "No WebMCP/model-context tool registration was found for public job/content workflows.", "pathIds": [ "jobs" ], "artifacts": [ "evidence/home-probe.json" ], "findingIds": [ "LI-021" ] }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "Objective browser/evidence probe on representative home path", "evidence": "The audited guest acquisition/search surfaces do not present an AI inference feature for which built-in on-device inference would apply.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json" ], "reason": "The audited guest acquisition/search surfaces do not present an AI inference feature for which built-in on-device inference would apply." }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative content path", "evidence": "After ten show-more/show-less activations, heap self size fell from 8,657,597 to 8,618,110 bytes; node count changed only +196.", "pathIds": [ "content" ], "artifacts": [ "evidence/content-heap-post.json" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative content path", "evidence": "Top Content retained 8.66MB self size across 136,428 nodes, proportionate to the rendered feed.", "pathIds": [ "content" ], "artifacts": [ "evidence/content-heap-baseline.json" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "high", "method": "Objective browser/evidence probe on representative content path", "evidence": "Before/after heap summaries show no Detached constructor population and no material closure growth (4,767 to 4,768).", "pathIds": [ "content" ], "artifacts": [ "evidence/content-heap-post.json" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "LI-001" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "issues", "findingIds": [ "LI-002" ] }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "issues", "findingIds": [ "LI-003" ] }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "LI-004", "LI-005" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "LI-006" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "issues", "findingIds": [ "LI-007", "LI-008" ] }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "LI-009", "LI-010", "LI-011" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "LI-012", "LI-006" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "LI-013", "LI-014", "LI-015" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "LI-016" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "LI-017" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "pass" }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "pass" }, { "principleId": "be-trustworthy", "expectation": "default", "status": "issues", "findingIds": [ "LI-018", "LI-008" ] }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "LI-019", "LI-020" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "issues", "findingIds": [ "LI-021" ] }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "pass" } ], "paths": [ { "id": "home", "description": "Public guest homepage and entry journey; represents global navigation, consent, sign-in entry, marketing content, and baseline load.", "url": "https://www.linkedin.com/", "conditions": [ "desktop 1440x1000", "mobile 360x800", "prefers-color-scheme: dark", "prefers-reduced-motion: reduce", "keyboard focus" ], "result": "issues" }, { "id": "jobs", "description": "Public jobs search/listing and job-detail surface; represents the highest-value guest search journey and its authentication gate.", "url": "https://www.linkedin.com/jobs/search", "conditions": [ "desktop 1440x1000", "mobile 360x800" ], "result": "issues" }, { "id": "content", "description": "Top Content listing/feed; represents editorial content, cards, category navigation, and a repeated show-more interaction.", "url": "https://www.linkedin.com/top-content", "conditions": [ "desktop 1440x1000", "mobile 360x800", "no-JavaScript crawler" ], "result": "issues" }, { "id": "login", "description": "Sign-in form; represents authentication, keyboard focus, autofill, passkey signalling, and empty-submit recovery.", "url": "https://www.linkedin.com/login", "conditions": [ "desktop 1440x1000", "mobile 360x800", "empty submit" ], "result": "issues" }, { "id": "signup", "description": "Account creation form; represents consent, signup autofill, and empty-submit recovery.", "url": "https://www.linkedin.com/signup", "conditions": [ "desktop 1440x1000", "mobile 360x800", "empty submit" ], "result": "issues" }, { "id": "not-found", "description": "Unknown URL; represents an HTTP/navigation failure and recovery state.", "url": "https://www.linkedin.com/this-path-should-not-exist-web-uplift", "conditions": [ "desktop 1440x1000" ], "result": "pass" } ], "findings": [ { "id": "LI-001", "severity": "medium", "confidence": "high", "summary": "The public experience does not respond to the user’s dark color-scheme preference.", "evidence": "The dark-mode screenshot remains a white surface, matching the light capture; the computed root color-scheme is \"normal\".", "suggestedFix": "Declare color-scheme and provide preference-driven surface and text tokens with prefers-color-scheme or light-dark().", "effort": "medium", "pathId": "home", "url": "https://www.linkedin.com/", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "user-experience", "artifacts": [ "evidence/home-dark.png", "evidence/home-probe.json" ] }, { "id": "LI-002", "severity": "low", "confidence": "high", "summary": "Route and major state changes do not use View Transitions.", "evidence": "The live feature probe found no view-transition usage across the guest homepage, while navigation and modal state changes are prominent.", "suggestedFix": "Use same-document or cross-document View Transitions for route and substantial state changes, with reduced-motion handling.", "effort": "medium", "pathId": "home", "url": "https://www.linkedin.com/", "principleId": "implement-natural-interactions", "principleCheckId": "view-transitions", "guidanceId": "same-document-transitions", "guidanceCategory": "animation", "artifacts": [ "evidence/home-probe.json" ] }, { "id": "LI-003", "severity": "low", "confidence": "medium", "summary": "The long guest homepage offers no scroll-state-aware navigation or progress affordance.", "evidence": "Mobile layout measured a 7,330px document, while the screenshot and DOM show static navigation and the probe found no scroll-timeline usage.", "suggestedFix": "Add a restrained scrollability/progress cue or scroll-state-aware header where it helps users orient on the long page.", "effort": "medium", "pathId": "home", "url": "https://www.linkedin.com/", "principleId": "provide-guided-navigation", "principleCheckId": "scroll-state-aware-chrome", "guidanceId": "scroll-progress-indicator", "guidanceCategory": "navigation", "artifacts": [ "evidence/home-mobile.png", "evidence/home-layout-mobile.json", "evidence/home-probe.json" ] }, { "id": "LI-004", "severity": "high", "confidence": "high", "summary": "Jobs search is interrupted on load by an authentication modal that obscures the primary results journey.", "evidence": "The desktop jobs capture shows a modal and dimmed results before user interaction; the DOM reports five role=dialog sections, including four empty duplicates.", "suggestedFix": "Let guests inspect the initial result/detail state before prompting, and implement one semantic dialog with a clear accessible name and predictable light dismiss.", "effort": "medium", "pathId": "jobs", "url": "https://www.linkedin.com/jobs/search", "principleId": "maximize-content-reduce-noise", "principleCheckId": "no-intrusive-interruptions", "guidanceId": "light-dismiss-a-dialog", "guidanceCategory": "ui", "artifacts": [ "evidence/jobs-desktop.png", "evidence/jobs-probe.json" ] }, { "id": "LI-005", "severity": "medium", "confidence": "high", "summary": "The jobs authentication overlay is built from duplicated custom role=dialog sections rather than one robust dialog primitive.", "evidence": "The jobs probe found five SECTION[role=dialog][aria-modal=true] nodes, four empty and the visible one without an accessible label.", "suggestedFix": "Consolidate the overlay into one native dialog, label it, and use platform focus management and dismissal behavior.", "effort": "medium", "pathId": "jobs", "url": "https://www.linkedin.com/jobs/search", "principleId": "maximize-content-reduce-noise", "principleCheckId": "semantic-dismissible-primitives", "guidanceId": "declarative-dialog-popover-control", "guidanceCategory": "ui", "artifacts": [ "evidence/jobs-probe.json", "evidence/jobs-desktop.png" ] }, { "id": "LI-006", "severity": "high", "confidence": "high", "summary": "Top Content omits the viewport meta tag and is rendered as a 980px desktop canvas scaled down on a 360px device.", "evidence": "The mobile layout reports clientWidth 980, scale 0.367 and hasViewportMeta false; the DOM and content probe independently confirm no viewport meta.", "suggestedFix": "Add width=device-width, initial-scale=1 and ensure cards/navigation reflow at the actual narrow viewport.", "effort": "small", "pathId": "content", "url": "https://www.linkedin.com/top-content", "principleId": "adapt-to-the-form-factor", "principleCheckId": "responsive-no-horizontal-scroll", "guidanceId": "fluid-scaling", "guidanceCategory": "css", "artifacts": [ "evidence/content-layout-mobile.json", "evidence/content-dom.json", "evidence/content-probe.json" ] }, { "id": "LI-007", "severity": "high", "confidence": "high", "summary": "The guest jobs journey cannot proceed without immediately dismissing or satisfying an authentication gate.", "evidence": "Jobs results load behind an automatic sign-in modal; this blocks inspection of the selected result and interrupts the primary guest task.", "suggestedFix": "Defer the authentication gate until an action truly requires membership and preserve the user’s search/result context through sign-in.", "effort": "large", "pathId": "jobs", "url": "https://www.linkedin.com/jobs/search", "principleId": "support-core-task-success", "principleCheckId": "primary-flow-completion", "guidanceId": "primary user journey task completion", "guidanceCategory": "forms", "artifacts": [ "evidence/jobs-desktop.png" ] }, { "id": "LI-008", "severity": "medium", "confidence": "medium", "summary": "Empty sign-in and signup submissions provide no visible error or recovery guidance in the exercised state.", "evidence": "Before and after empty-submit screenshots are visually identical and the forms expose non-required fields to the DOM; no inline error or summary appears.", "suggestedFix": "Validate after interaction, mark invalid fields, announce errors, and move focus to a concise recovery summary without clearing user input.", "effort": "small", "pathId": "login", "url": "https://www.linkedin.com/login", "principleId": "support-core-task-success", "principleCheckId": "clear-system-state-and-recovery", "guidanceId": "accessible-error-announcement", "guidanceCategory": "forms", "artifacts": [ "evidence/login-invalid2.png", "evidence/signup-invalid2.png", "evidence/login-probe.json" ] }, { "id": "LI-009", "severity": "medium", "confidence": "high", "summary": "Largest Contentful Paint is slower than the good threshold on the audited guest homepage.", "evidence": "Lighthouse measured LCP at 3.5s (score 0.64), while the unthrottled trace measured 1.42s, indicating the constrained-load path is the risk.", "suggestedFix": "Prioritize the LCP resource and remove discovery/render-blocking delays; verify on representative mobile conditions.", "effort": "medium", "pathId": "home", "url": "https://www.linkedin.com/", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "optimize-preload-priority", "guidanceCategory": "performance", "artifacts": [ "evidence/home-lighthouse.json", "evidence/home-trace-summary.json" ] }, { "id": "LI-010", "severity": "medium", "confidence": "high", "summary": "The guest homepage ships a script-heavy critical path with a parser stylesheet and avoidable transfer cost.", "evidence": "HAR recorded 605KB transferred, including 505KB script; the stylesheet is a VeryHigh-priority parser candidate, and Lighthouse flags LCP discovery/network dependency issues.", "suggestedFix": "Reduce critical CSS/JS, confirm non-critical scripts are deferred, and explicitly prioritize the true LCP asset.", "effort": "large", "pathId": "home", "url": "https://www.linkedin.com/", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-script-priority", "guidanceCategory": "performance", "artifacts": [ "evidence/home-summary.json", "evidence/home.har", "evidence/home-lighthouse.json" ] }, { "id": "LI-011", "severity": "medium", "confidence": "high", "summary": "A large share of downloaded JavaScript and CSS is unused on the guest homepage.", "evidence": "Lighthouse estimates 309KiB unused JavaScript and 44KiB unused CSS, including several bundles with roughly 48% to 77% waste.", "suggestedFix": "Split guest-only entry bundles, conditionally load authentication/analytics dependencies, and remove unused CSS from the initial route.", "effort": "large", "pathId": "home", "url": "https://www.linkedin.com/", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "conditional-async-dependencies", "guidanceCategory": "performance", "artifacts": [ "evidence/home-lighthouse-summary.json" ] }, { "id": "LI-012", "severity": "medium", "confidence": "high", "summary": "The jobs modal accessibility tree contains duplicated unnamed dialog roles.", "evidence": "The DOM probe reports five aria-modal dialogs, four empty and the visible dialog without aria-label; this can produce confusing screen-reader navigation despite the homepage Lighthouse score of 0.97.", "suggestedFix": "Expose exactly one named dialog and remove hidden duplicates from the accessibility tree.", "effort": "small", "pathId": "jobs", "url": "https://www.linkedin.com/jobs/search", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "artifacts": [ "evidence/jobs-probe.json", "evidence/jobs-desktop.png" ] }, { "id": "LI-013", "severity": "low", "confidence": "high", "summary": "The homepage logs a failed tracking-pixel network error.", "evidence": "Lighthouse errors-in-console reports net::ERR_NAME_NOT_RESOLVED for ponf.linkedin.com/pixel/tracking.png.", "suggestedFix": "Remove or repair the failing tracking endpoint and ensure optional telemetry failures stay silent and non-disruptive.", "effort": "small", "pathId": "home", "url": "https://www.linkedin.com/", "principleId": "follow-best-practices", "principleCheckId": "no-console-errors", "guidanceId": "avoid console errors uncaught exceptions", "guidanceCategory": "best-practices", "artifacts": [ "evidence/home-lighthouse-summary.json" ] }, { "id": "LI-014", "severity": "medium", "confidence": "high", "summary": "Image markup does not reserve dimensions, and the mobile hero is rendered at the wrong aspect ratio.", "evidence": "The image primitive found 7/7 images without width/height and 7/7 without srcset; Lighthouse identifies the hero displayed at 1.75 versus an intrinsic 1.25 ratio.", "suggestedFix": "Provide intrinsic width/height or aspect-ratio, preserve object proportions, and add responsive image candidates.", "effort": "medium", "pathId": "home", "url": "https://www.linkedin.com/", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "guidanceId": "optimize-image-priority", "guidanceCategory": "performance", "artifacts": [ "evidence/home-images.json", "evidence/home-lighthouse-summary.json" ] }, { "id": "LI-015", "severity": "low", "confidence": "high", "summary": "The page misses browser-platform diagnostics and back/forward cache opportunities.", "evidence": "Lighthouse reports a missing source map for a large first-party bundle and three bfcache failure reasons tied to Cache-Control: no-store.", "suggestedFix": "Publish production source maps to authorized tooling and scope no-store only to responses that genuinely contain sensitive per-user data.", "effort": "medium", "pathId": "home", "url": "https://www.linkedin.com/", "principleId": "follow-best-practices", "principleCheckId": "browser-platform-hygiene", "guidanceId": "html", "guidanceCategory": "best-practices", "artifacts": [ "evidence/home-lighthouse-summary.json" ] }, { "id": "LI-016", "severity": "medium", "confidence": "high", "summary": "Public jobs/content pages expose rich entities without structured data.", "evidence": "Live probes found zero JSON-LD blocks on the homepage, jobs search, and Top Content, although titles, descriptions, canonical links, hreflang, and Open Graph metadata are present.", "suggestedFix": "Add content-matched schema.org JSON-LD for relevant public entities such as JobPosting, ItemList, Organization, and article/content objects.", "effort": "medium", "pathId": "jobs", "url": "https://www.linkedin.com/jobs/search", "principleId": "be-discoverable", "principleCheckId": "structured-and-shareable-metadata", "guidanceId": "structured data schema.org json-ld open graph social preview metadata", "guidanceCategory": "seo", "artifacts": [ "evidence/home-probe.json", "evidence/jobs-probe.json", "evidence/content-probe.json" ] }, { "id": "LI-017", "severity": "medium", "confidence": "high", "summary": "Security policy coverage is incomplete despite strong HTTPS, HSTS, CSP, framing, and MIME protections.", "evidence": "Headers show HTTPS, HSTS, CSP, nosniff and sameorigin framing, but no Referrer-Policy or Permissions-Policy; the CSP requires unsafe-inline for styles and all eight cookies use SameSite=None.", "suggestedFix": "Set explicit Referrer-Policy and Permissions-Policy, tighten inline style policy where feasible, and use the least-permissive SameSite mode per cookie.", "effort": "medium", "pathId": "home", "url": "https://www.linkedin.com/", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "guidanceId": "security", "guidanceCategory": "security", "artifacts": [ "evidence/home-headers.json", "evidence/home-cookies.json" ] }, { "id": "LI-018", "severity": "medium", "confidence": "high", "summary": "Guest sign-in and signup default to keeping the user signed in.", "evidence": "Both captured account forms show a preselected “Keep me signed in” or “Remember me” checkbox, extending session persistence unless the user notices and opts out.", "suggestedFix": "Default persistent sign-in off, or clearly explain duration and device risk before the user opts in.", "effort": "small", "pathId": "login", "url": "https://www.linkedin.com/login", "principleId": "be-trustworthy", "principleCheckId": "no-dark-patterns", "guidanceId": "honest defaults no dark patterns confirmshaming forced continuity consent", "guidanceCategory": "forms", "artifacts": [ "evidence/login-desktop.png", "evidence/signup-desktop.png" ] }, { "id": "LI-019", "severity": "medium", "confidence": "high", "summary": "Asset delivery misses responsive-image and dimension optimizations.", "evidence": "The image audit found no srcset or explicit dimensions on all seven inspected images; Lighthouse confirms an aspect-ratio distortion.", "suggestedFix": "Serve correctly sized responsive candidates and reserve stable image boxes before bytes arrive.", "effort": "medium", "pathId": "home", "url": "https://www.linkedin.com/", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "deliver-optimized-decorative-images", "guidanceCategory": "performance", "artifacts": [ "evidence/home-images.json", "evidence/home-lighthouse-summary.json" ] }, { "id": "LI-020", "severity": "medium", "confidence": "high", "summary": "Most guest-page transfer is attributed to secondary LinkedIn origins and scripts.", "evidence": "HAR recorded 576,476 of 604,965 transferred bytes across non-www origins, with 505KB of script and 28 of 41 requests classified as third-party by origin.", "suggestedFix": "Set a guest-route script/third-party byte budget and conditionally load telemetry and identity dependencies only when needed.", "effort": "large", "pathId": "home", "url": "https://www.linkedin.com/", "principleId": "be-sustainable", "principleCheckId": "third-party-and-media-budget", "guidanceId": "deprioritize-background-fetches", "guidanceCategory": "performance", "artifacts": [ "evidence/home-summary.json", "evidence/home-trackers.json" ] }, { "id": "LI-021", "severity": "low", "confidence": "medium", "summary": "High-value public job and content capabilities are not exposed as structured agent tools.", "evidence": "The live homepage probe found no model-context/WebMCP registration, while the site exposes agent-suitable search, content exploration, login, and signup workflows.", "suggestedFix": "Expose narrowly scoped, user-confirmed WebMCP tools for public search and navigation while keeping sensitive account actions gated.", "effort": "large", "pathId": "jobs", "url": "https://www.linkedin.com/jobs/search", "principleId": "be-agent-ready", "principleCheckId": "structured-agent-capabilities", "guidanceId": "webmcp", "guidanceCategory": "ai", "artifacts": [ "evidence/home-probe.json", "evidence/jobs-probe.json" ] } ], "taskList": [ { "id": "TASK-1", "title": "Remove the automatic jobs auth interruption and repair dialog semantics", "priority": 1, "findingIds": [ "LI-004", "LI-005", "LI-007", "LI-012" ], "guidanceId": "light-dismiss-a-dialog", "status": "open" }, { "id": "TASK-2", "title": "Restore true mobile reflow on Top Content", "priority": 2, "findingIds": [ "LI-006" ], "guidanceId": "fluid-scaling", "status": "open" }, { "id": "TASK-3", "title": "Reduce and reprioritize guest-route JavaScript/CSS", "priority": 3, "findingIds": [ "LI-009", "LI-010", "LI-011", "LI-020" ], "guidanceId": "optimize-script-priority", "status": "open" }, { "id": "TASK-4", "title": "Add visible, announced form validation and safer session defaults", "priority": 4, "findingIds": [ "LI-008", "LI-018" ], "guidanceId": "accessible-error-announcement", "status": "open" }, { "id": "TASK-5", "title": "Reserve and responsively deliver image space", "priority": 5, "findingIds": [ "LI-014", "LI-019" ], "guidanceId": "deliver-optimized-decorative-images", "status": "open" }, { "id": "TASK-6", "title": "Complete browser security policies", "priority": 6, "findingIds": [ "LI-017" ], "guidanceId": "security", "status": "open" }, { "id": "TASK-7", "title": "Add dark-theme support", "priority": 7, "findingIds": [ "LI-001" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "TASK-8", "title": "Add structured data for public entities", "priority": 8, "findingIds": [ "LI-016" ], "guidanceId": "structured data schema.org json-ld open graph social preview metadata", "status": "open" }, { "id": "TASK-9", "title": "Repair platform diagnostics and telemetry errors", "priority": 9, "findingIds": [ "LI-013", "LI-015" ], "guidanceId": "html", "status": "open" }, { "id": "TASK-10", "title": "Add restrained navigation motion and agent affordances where useful", "priority": 10, "findingIds": [ "LI-002", "LI-003", "LI-021" ], "guidanceId": "same-document-transitions", "status": "open" } ], "budget": { "wallClockSeconds": 1200, "pathCount": 6, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-22T10-30-51-995Z" }