Manifest position 692 · CrUX rank bucket 1000

https://www.linkedin.com

Coverage complete

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.

Attempts

1 / 3

Judged checks

58 / 58

Blocked

Not run

This report has no published overall score. Blocked and not-run checks are not passes. A coverage-complete report means every check has a judged outcome; it does not mean every check passed.

All 58 atomic check outcomes

Principle / check	Status	Confidence	Evidence or reason
respect-user-preferences `respects-color-scheme`	issues	high	Dark capture remains light; computed color-scheme is normal. LI-001 medium: The public experience does not respond to the user’s dark color-scheme preference.
respect-user-preferences `respects-reduced-motion`	pass	high	Reduced-motion emulation was active and getAnimations() returned no running animations.
respect-user-preferences `respects-contrast`	pass	high	Lighthouse color-contrast audit passed; controls remain legible in captures.
implement-natural-interactions `view-transitions`	issues	high	Live probe found no view-transition usage on route/state-rich guest surfaces. LI-002 low: Route and major state changes do not use View Transitions.
implement-natural-interactions `scroll-driven-animations`	pass	high	No animation-timeline use or active document animations were found; scrolling uses native behavior without main-thread animation handlers observed.
implement-natural-interactions `physical-gestures`	pass	medium	Representative guest surfaces use native page scrolling and standard controls; no swipe-only or custom pointer gesture was required.
provide-guided-navigation `scroll-state-aware-chrome`	issues	high	The mobile page is 7,330px tall but no progress or scroll-state navigation affordance is visible. LI-003 low: The long guest homepage offers no scroll-state-aware navigation or progress affordance.
provide-guided-navigation `anchored-positioning`	pass	medium	The only prominent overlay is a centered modal, which remains within the viewport and does not require element anchoring.
provide-guided-navigation `directs-attention`	pass	medium	Heading hierarchy, selected category, breadcrumbs, and card actions provide visible orientation and next-step cues.
maximize-content-reduce-noise `no-intrusive-interruptions`	issues	high	An authentication modal automatically obscures jobs results before interaction. LI-004 high: Jobs search is interrupted on load by an authentication modal that obscures the primary results journey.
maximize-content-reduce-noise `semantic-dismissible-primitives`	issues	high	Five custom SECTION role=dialog nodes are present, four empty and the visible one unnamed. LI-005 medium: The jobs authentication overlay is built from duplicated custom role=dialog sections rather than one robust dialog primitive.
maximize-content-reduce-noise `reduced-chrome`	pass	high	The first viewport gives most area to purpose, actions, and illustration; navigation and consent chrome are bounded.
adapt-to-the-form-factor `responsive-no-horizontal-scroll`	issues	high	Top Content lacks viewport meta and renders at a 980px layout viewport scaled to 360px. LI-006 high: Top Content omits the viewport meta tag and is rendered as a 980px desktop canvas scaled down on a 360px device.
adapt-to-the-form-factor `component-level-responsiveness`	issues	high	The content template remains a scaled desktop canvas on mobile rather than adapting components to the narrow form factor. LI-006 high: Top Content omits the viewport meta tag and is rendered as a 980px desktop canvas scaled down on a 360px device.
adapt-to-the-form-factor `input-modality-aware`	pass	high	Keyboard focus produced :focus-visible with an auto outline; Lighthouse target-size audit passed.
support-core-task-success `clear-purpose-and-primary-action`	pass	high	The first viewport states the professional-network purpose and presents sign-in/join actions with clear hierarchy.
support-core-task-success `primary-flow-completion`	issues	high	The selected jobs journey is stopped by an immediate authentication modal. LI-007 high: The guest jobs journey cannot proceed without immediately dismissing or satisfying an authentication gate.
support-core-task-success `clear-system-state-and-recovery`	issues	high	Empty submit produced no visible error or recovery instruction in the exercised login/signup state. LI-008 medium: Empty sign-in and signup submissions provide no visible error or recovery guidance in the exercised state.
be-fast-and-stable `good-core-web-vitals`	issues	high	Lighthouse LCP was 3.5s, above the good threshold; CLS was 0.025 and TBT 0ms. LI-009 medium: Largest Contentful Paint is slower than the good threshold on the audited guest homepage.
be-fast-and-stable `visual-stability`	pass	high	Observed homepage CLS was 0.0023; jobs 0.0276, login 0.0337, and signup 0, all below 0.1.
be-fast-and-stable `efficient-main-thread`	pass	high	Trace found one 145ms long task and 95ms TBT; Lighthouse measured 0ms TBT under its run.
be-fast-and-stable `efficient-resource-delivery`	issues	high	HAR recorded 605KB including 505KB script and a parser-inserted VeryHigh-priority stylesheet. LI-010 medium: The guest homepage ships a script-heavy critical path with a parser stylesheet and avoidable transfer cost.
be-fast-and-stable `trim-unused-and-duplicate-code`	issues	high	Lighthouse estimates 309KiB unused JS and 44KiB unused CSS. LI-011 medium: A large share of downloaded JavaScript and CSS is unused on the guest homepage.
be-inclusive `names-roles-labels`	issues	high	Jobs DOM contains five aria-modal dialogs, including four empty duplicates and one unnamed visible dialog. LI-012 medium: The jobs modal accessibility tree contains duplicated unnamed dialog roles.
be-inclusive `sufficient-contrast`	pass	high	Lighthouse color-contrast audit passed with score 1.
be-inclusive `structure-and-focus`	pass	high	Homepage has sequential headings/main landmark and a visible keyboard-focused skip link.
be-inclusive `legible-text`	pass	high	Body copy, headings, line lengths, and labels are legible at desktop in representative captures.
be-inclusive `zoom-reflow-targets-and-media`	issues	high	Top Content omits viewport meta and scales a 980px canvas, failing true narrow-screen reflow. LI-006 high: Top Content omits the viewport meta tag and is rendered as a 980px desktop canvas scaled down on a 360px device.
follow-best-practices `no-console-errors`	issues	high	Lighthouse logged ERR_NAME_NOT_RESOLVED for the ponf.linkedin.com tracking pixel. LI-013 low: The homepage logs a failed tracking-pixel network error.
follow-best-practices `sound-document-and-assets`	issues	high	Doctype/charset are sound, but all seven audited images lack dimensions/srcset and Lighthouse found a distorted hero ratio. LI-014 medium: Image markup does not reserve dimensions, and the mobile hero is rendered at the wrong aspect ratio.
follow-best-practices `browser-platform-hygiene`	issues	high	Lighthouse found missing source maps and three bfcache blockers tied to no-store. LI-015 low: The page misses browser-platform diagnostics and back/forward cache opportunities.
be-discoverable `title-and-description`	pass	high	Homepage and representative content probes expose descriptive titles and meta descriptions.
be-discoverable `crawlable-and-mobile-friendly`	pass	high	Guest links have hrefs and crawler coverage is 80-100%; Top Content mobile-friendliness is accounted for under the viewport findings.
be-discoverable `canonical-and-indexing-signals`	pass	high	Canonical, extensive hreflang, robots signal, HTTPS 200 response, robots.txt-discoverable public pages were observed.
be-discoverable `structured-and-shareable-metadata`	issues	high	Open Graph is present, but probes found zero JSON-LD on homepage, jobs, and Top Content. LI-016 medium: Public jobs/content pages expose rich entities without structured data.
be-private-and-secure `secure-transport-and-headers`	issues	high	HTTPS, HSTS, CSP, nosniff and frame protections pass, but Referrer-Policy and Permissions-Policy are absent. LI-017 medium: Security policy coverage is incomplete despite strong HTTPS, HSTS, CSP, framing, and MIME protections.
be-private-and-secure `data-minimisation-and-third-parties`	pass	high	Consent offers equal Accept/Reject choices, no known tracker domains were matched, and five secondary origins were observed.
be-private-and-secure `in-context-permissions-and-modern-auth`	pass	high	No permission request on load was found; login exposes username webauthn and current-password autocomplete.
be-private-and-secure `defensive-browser-policies`	issues	high	Referrer-Policy and Permissions-Policy are missing, CSP permits unsafe-inline styles, and all cookies are SameSite=None. LI-017 medium: Security policy coverage is incomplete despite strong HTTPS, HSTS, CSP, framing, and MIME protections.
be-resilient `progressive-enhancement`	pass	high	Raw HTML retains 98-100% of rendered content words on home/content and 80% on jobs; no JS shell was detected.
be-resilient `resilient-runtime-behaviour`	pass	high	The centered modal remains within the viewport, can be dismissed, and the representative pages rendered without fatal runtime failure.
be-resilient `offline-and-installable`	not-applicable	high	No manifest or service-worker registration exists; offline installation is not a reasonable requirement for this public acquisition surface.
be-resilient `network-and-http-failure-states`	pass	high	An unknown path returns a clear Page not found state with Help Center and feed recovery actions.
be-internationalised `lang-dir-and-logical-properties`	pass	high	All representative documents declare en/en-US; the homepage publishes extensive hreflang alternatives and language controls.
be-internationalised `locale-aware-data`	pass	medium	Language selection and localized regional home variants are exposed; visible content uses locale-neutral relative-age labels.
be-internationalised `time-zone-correctness`	not-applicable	medium	No absolute event scheduling or time-zone-sensitive task appears in the unauthenticated representative scope; only relative post ages are shown.
be-trustworthy `no-dark-patterns`	issues	high	Login and signup preselect persistent-session checkboxes, creating a privacy-affecting default users must undo. LI-018 medium: Guest sign-in and signup default to keeping the user signed in.
be-trustworthy `humane-error-handling`	issues	high	Empty-submit attempts showed no visible inline or summary error state. LI-008 medium: Empty sign-in and signup submissions provide no visible error or recovery guidance in the exercised state.
be-trustworthy `trustworthy-input-assistance`	pass	high	Login inputs use username webauthn and current-password autocomplete with explicit visible labels.
be-trustworthy `safe-commercial-and-account-flows`	pass	high	Signup shows terms before action, login exposes recovery and WebAuthn autocomplete, and no hidden charge/commercial step appears.
be-sustainable `optimised-assets`	issues	high	All seven audited images lack explicit dimensions and responsive srcset; one hero aspect ratio is distorted. LI-019 medium: Asset delivery misses responsive-image and dimension optimizations.
be-sustainable `no-wasteful-work`	pass	high	Idle load showed one bounded long task and no autoplay media or continuing animations; no sustained background work was observed.
be-sustainable `third-party-and-media-budget`	issues	high	576KB of 605KB transferred came from secondary origins and 505KB was script. LI-020 medium: Most guest-page transfer is attributed to secondary LinkedIn origins and scripts.
be-agent-ready `structured-agent-capabilities`	issues	medium	No WebMCP/model-context tool registration was found for public job/content workflows. LI-021 low: High-value public job and content capabilities are not exposed as structured agent tools.
be-agent-ready `on-device-inference`	not-applicable	high	The audited guest acquisition/search surfaces do not present an AI inference feature for which built-in on-device inference would apply.
be-memory-efficient `no-leak-under-repeated-interaction`	pass	high	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.
be-memory-efficient `bounded-footprint`	pass	high	Top Content retained 8.66MB self size across 136,428 nodes, proportionate to the rendered feed.
be-memory-efficient `no-detached-dom-or-unbounded-listeners`	pass	high	Before/after heap summaries show no Detached constructor population and no material closure growth (4,767 to 4,768).

Provenance

Canonical report: results/atomic/reports/0692-www_linkedin_com.json
Report SHA-256: 3fed19d504f6913ed4367138c823b4f89edb1f7dab5ca576b928f4463a1c9876
Local retained report: runs/2026-07-17T17-27-24-856Z/atomic-reports/www_linkedin_com/2026-07-22T10-30-51-995Z/report.json
Local evidence root: runs/2026-07-17T17-27-24-856Z/atomic-reports/www_linkedin_com/2026-07-22T10-30-51-995Z
Catalog SHA-256: sha256:78ccfdb2d483f4c57d9dafed80fd86c6265585a56457c8dcfddc254b80fb44d7

Raw screenshots, HARs, traces, heaps, and other browser artifacts are retained at the local evidence root and intentionally are not committed. Artifact paths in the canonical report are relative to that root.