{ "url": "https://www.nytimes.com", "auditedAt": "2026-07-27T22:16:08.694Z", "mode": "report", "status": "partial", "statusDetail": "Atomic coverage is exact, but 7 checks are blocked because anti-bot protection prevented article, search, login, validation, recovery and account-flow inspection.", "page": { "appType": "hybrid", "framework": "React (server-rendered/hydrated)", "notes": "Large public news MPA/hybrid. Homepage and World section were accessible; representative article, search and login routes returned a bot-protection page." }, "evidenceUsed": [ "screenshot", "dom", "evaluate-probe", "layout-metrics", "trace", "har", "discoverability", "headers", "cookies", "trackers", "secrets", "images", "lighthouse", "heap-summary", "robots.txt", "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": "screenshot", "path": "evidence/article-discoverability-crawler.png", "caption": "article discoverability crawler" }, { "type": "screenshot", "path": "evidence/article-discoverability-rendered.png", "caption": "article discoverability rendered" }, { "type": "discoverability", "path": "evidence/article-discoverability.json", "caption": "article discoverability" }, { "type": "other", "path": "evidence/article-links.json", "caption": "article links" }, { "type": "screenshot", "path": "evidence/article-mobile.png", "caption": "article mobile", "condition": "viewport: 360x800" }, { "type": "dom", "path": "evidence/article-probe.json", "caption": "article probe" }, { "type": "other", "path": "evidence/cookies.json", "caption": "cookies", "findingIds": [ "F17" ] }, { "type": "other", "path": "evidence/focus.json", "caption": "focus", "findingIds": [ "F05" ] }, { "type": "other", "path": "evidence/headers.json", "caption": "headers", "findingIds": [ "F17", "F19" ] }, { "type": "heap", "path": "evidence/heap-baseline.heapsnapshot", "caption": "heap baseline", "findingIds": [ "F23" ] }, { "type": "heap", "path": "evidence/heap-post.heapsnapshot", "caption": "heap post" }, { "type": "screenshot", "path": "evidence/home-contrast.png", "caption": "home contrast", "condition": "prefers-contrast: more" }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "home dark", "condition": "prefers-color-scheme: dark", "findingIds": [ "F01" ] }, { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "home desktop", "findingIds": [ "F02", "F18" ] }, { "type": "screenshot", "path": "evidence/home-discoverability-crawler.png", "caption": "home discoverability crawler" }, { "type": "screenshot", "path": "evidence/home-discoverability-rendered.png", "caption": "home discoverability rendered" }, { "type": "discoverability", "path": "evidence/home-discoverability.json", "caption": "home discoverability", "findingIds": [ "F16" ] }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "home dom", "findingIds": [ "F01" ] }, { "type": "layout", "path": "evidence/home-layout-mobile.json", "caption": "home layout mobile", "condition": "viewport: 360x800", "findingIds": [ "F03" ] }, { "type": "lighthouse", "path": "evidence/home-lighthouse.json", "caption": "home lighthouse", "findingIds": [ "F05", "F06", "F08", "F10", "F11", "F12", "F13", "F15", "F16", "F21" ] }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "home mobile", "condition": "viewport: 360x800", "findingIds": [ "F02", "F03" ] }, { "type": "dom", "path": "evidence/home-probe.json", "caption": "home probe", "findingIds": [ "F04" ] }, { "type": "dom", "path": "evidence/home-recon.json", "caption": "home recon" }, { "type": "screenshot", "path": "evidence/home-rejected.png", "caption": "home rejected" }, { "type": "har-summary", "path": "evidence/home-summary.json", "caption": "home summary", "findingIds": [ "F09", "F10", "F18", "F21", "F22" ] }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "home trace summary", "findingIds": [ "F06", "F08" ] }, { "type": "trace", "path": "evidence/home-trace.json", "caption": "home trace" }, { "type": "har", "path": "evidence/home.har", "caption": "home", "findingIds": [ "F09", "F22" ] }, { "type": "other", "path": "evidence/images.json", "caption": "images", "findingIds": [ "F14", "F20" ] }, { "type": "screenshot", "path": "evidence/login-mobile.png", "caption": "login mobile", "condition": "viewport: 360x800" }, { "type": "dom", "path": "evidence/login-probe.json", "caption": "login probe" }, { "type": "other", "path": "evidence/reduced-motion.json", "caption": "reduced motion" }, { "type": "other", "path": "evidence/robots.json", "caption": "robots" }, { "type": "screenshot", "path": "evidence/search-mobile.png", "caption": "search mobile", "condition": "viewport: 360x800" }, { "type": "dom", "path": "evidence/search-probe.json", "caption": "search probe" }, { "type": "other", "path": "evidence/secrets.json", "caption": "secrets" }, { "type": "other", "path": "evidence/sitemap.json", "caption": "sitemap" }, { "type": "other", "path": "evidence/trackers.json", "caption": "trackers", "findingIds": [ "F18" ] }, { "type": "screenshot", "path": "evidence/world-discoverability-crawler.png", "caption": "world discoverability crawler" }, { "type": "screenshot", "path": "evidence/world-discoverability-rendered.png", "caption": "world discoverability rendered" }, { "type": "discoverability", "path": "evidence/world-discoverability.json", "caption": "world discoverability" }, { "type": "layout", "path": "evidence/world-layout-mobile.json", "caption": "world layout mobile", "condition": "viewport: 360x800", "findingIds": [ "F07", "F14" ] }, { "type": "lighthouse", "path": "evidence/world-lighthouse.json", "caption": "world lighthouse", "findingIds": [ "F06", "F07", "F11", "F12", "F13" ] }, { "type": "screenshot", "path": "evidence/world-mobile.png", "caption": "world mobile", "condition": "viewport: 360x800" }, { "type": "dom", "path": "evidence/world-probe.json", "caption": "world probe", "findingIds": [ "F04" ] } ], "config": { "loaded": false }, "coverage": { "catalogVersion": "modern-web-guidance@0.0.172", "catalogChecksum": "sha256:78ccfdb2d483f4c57d9dafed80fd86c6265585a56457c8dcfddc254b80fb44d7", "expected": 58, "recorded": 58, "judged": 51, "blocked": 7, "notRun": 0, "missing": 0, "unknown": 0, "duplicates": 0, "complete": false }, "checkOutcomes": [ { "principleId": "respect-user-preferences", "checkId": "respects-color-scheme", "status": "issues", "confidence": "high", "method": "Screenshot and computed-style/CSS probes under emulated user preferences.", "evidence": "The dark-mode screenshot is visually identical to the light capture, the page declares meta color-scheme=light, and computed body background remains white.", "pathIds": [ "home" ], "findingIds": [ "F01" ], "artifacts": [ "evidence/home-dark.png", "evidence/home-contrast.png", "evidence/reduced-motion.json" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "medium", "method": "Screenshot and computed-style/CSS probes under emulated user preferences.", "evidence": "Under prefers-reduced-motion: reduce the media query matched, loaded CSS contained reduced-motion handling, and only two finite 300ms animations remained, both finished.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dark.png", "evidence/home-contrast.png", "evidence/reduced-motion.json" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "pass", "confidence": "medium", "method": "Screenshot and computed-style/CSS probes under emulated user preferences.", "evidence": "The prefers-contrast: more screenshot retained readable text, controls, borders, and consent actions; CSS also contained prefers-contrast/forced-colors handling.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dark.png", "evidence/home-contrast.png", "evidence/reduced-motion.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "pass", "confidence": "medium", "method": "Rendered DOM/CSS signal inspection on homepage and World.", "evidence": "Loaded homepage and section CSS contains view-transition rules, providing declarative transition support for state/route changes.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json", "evidence/world-probe.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "pass", "confidence": "medium", "method": "Rendered DOM/CSS signal inspection on homepage and World.", "evidence": "Loaded CSS contains animation-timeline/scroll-timeline rules; no evidence of a required scroll effect implemented solely with a scroll listener was found.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json", "evidence/world-probe.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "pass", "confidence": "medium", "method": "Rendered DOM/CSS signal inspection on homepage and World.", "evidence": "Loaded CSS contains scroll-snap and overscroll-oriented platform styling, and the audited news surfaces did not expose a custom gesture that fought native scrolling.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-probe.json", "evidence/world-probe.json" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "pass", "confidence": "medium", "method": "Desktop/mobile screenshots and rendered navigation/CSS inspection.", "evidence": "The responsive navigation and live-news chrome remain position-aware across desktop/mobile captures, and loaded CSS contains scroll-timeline/state-related styling.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-rejected.png", "evidence/world-mobile.png", "evidence/home-probe.json" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "pass", "confidence": "medium", "method": "Desktop/mobile screenshots and rendered navigation/CSS inspection.", "evidence": "Loaded CSS contains anchor positioning declarations and the semantic navigation dialog remained attached and usable in captured states.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-rejected.png", "evidence/world-mobile.png", "evidence/home-probe.json" ] }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "pass", "confidence": "medium", "method": "Desktop/mobile screenshots and rendered navigation/CSS inspection.", "evidence": "Homepage/section hierarchy, live labels, tabs, headings, and state-aware navigation provide clear visual direction across the representative index surfaces.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-rejected.png", "evidence/world-mobile.png", "evidence/home-probe.json" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "issues", "confidence": "high", "method": "First-load and post-dismiss screenshots plus semantic overlay inspection.", "evidence": "Desktop and mobile first-load screenshots show the “Manage privacy preferences” panel covering the lower 25% of desktop and most of the 360px viewport before any user action.", "pathIds": [ "home" ], "findingIds": [ "F02" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-rejected.png", "evidence/home-probe.json" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "pass", "confidence": "medium", "method": "First-load and post-dismiss screenshots plus semantic overlay inspection.", "evidence": "The main navigation overlay is implemented as a native dialog and the consent interruption provides explicit accept, reject, and manage actions.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-rejected.png", "evidence/home-probe.json" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "pass", "confidence": "medium", "method": "First-load and post-dismiss screenshots plus semantic overlay inspection.", "evidence": "After rejecting consent, the desktop capture devotes the primary area to editorial headlines and imagery with restrained navigation chrome.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-rejected.png", "evidence/home-probe.json" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "issues", "confidence": "high", "method": "360x800 layout metrics, screenshots, focus and Lighthouse target-size evidence.", "evidence": "The mobile layout primitive measured scrollWidth 627px against clientWidth 360px, producing 267px of horizontal overflow despite a valid viewport meta tag.", "pathIds": [ "home" ], "findingIds": [ "F03" ], "artifacts": [ "evidence/home-layout-mobile.json", "evidence/world-layout-mobile.json", "evidence/focus.json", "evidence/home-lighthouse.json" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "issues", "confidence": "high", "method": "360x800 layout metrics, screenshots, focus and Lighthouse target-size evidence.", "evidence": "The DOM/CSS probe found no @container or container-type signal while the same card/navigation patterns appear across differently sized regions.", "pathIds": [ "home" ], "findingIds": [ "F04" ], "artifacts": [ "evidence/home-layout-mobile.json", "evidence/world-layout-mobile.json", "evidence/focus.json", "evidence/home-lighthouse.json" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "issues", "confidence": "high", "method": "360x800 layout metrics, screenshots, focus and Lighthouse target-size evidence.", "evidence": "A focused primary news link matched :focus-visible but computed to a transparent 2px outline with no box shadow. Lighthouse also identified nine footer target-size groups.", "pathIds": [ "home" ], "findingIds": [ "F05" ], "artifacts": [ "evidence/home-layout-mobile.json", "evidence/world-layout-mobile.json", "evidence/focus.json", "evidence/home-lighthouse.json" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "medium", "method": "Representative homepage, section, article, search and login walkthrough attempts.", "evidence": "The homepage and World page have descriptive titles, prominent editorial headings, clear story links, section navigation, subscribe and login actions.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-rejected.png", "evidence/world-mobile.png", "evidence/article-mobile.png", "evidence/search-mobile.png", "evidence/login-mobile.png" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "blocked", "confidence": "high", "method": "Representative homepage, section, article, search and login walkthrough attempts.", "evidence": "Article, search, and login journeys were attempted, but NYTimes bot protection returned a robot-block page before the representative flows could be completed.", "pathIds": [ "article", "search", "login" ], "reason": "Article, search, and login journeys were attempted, but NYTimes bot protection returned a robot-block page before the representative flows could be completed.", "artifacts": [ "evidence/home-rejected.png", "evidence/world-mobile.png", "evidence/article-mobile.png", "evidence/search-mobile.png", "evidence/login-mobile.png" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "blocked", "confidence": "high", "method": "Representative homepage, section, article, search and login walkthrough attempts.", "evidence": "Search and account recovery/error states could not be exercised because bot protection blocked the routes before the application UI loaded.", "pathIds": [ "article", "search", "login" ], "reason": "Search and account recovery/error states could not be exercised because bot protection blocked the routes before the application UI loaded.", "artifacts": [ "evidence/home-rejected.png", "evidence/world-mobile.png", "evidence/article-mobile.png", "evidence/search-mobile.png", "evidence/login-mobile.png" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Lighthouse, trace summary, HAR summary, layout observers and image audit.", "evidence": "Lighthouse measured homepage LCP 32.1s, FCP 13.4s, TBT 2,800ms and performance 0.26; World measured LCP 29.8s, FCP 8.9s and TBT 1,670ms.", "pathIds": [ "home" ], "findingIds": [ "F06" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/home-trace-summary.json", "evidence/home-summary.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "issues", "confidence": "high", "method": "Lighthouse, trace summary, HAR summary, layout observers and image audit.", "evidence": "The mobile layout observer recorded CLS 0.253, including a single 0.196 shift around 16.8s; Lighthouse independently measured non-zero CLS.", "pathIds": [ "home" ], "findingIds": [ "F07" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/home-trace-summary.json", "evidence/home-summary.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "issues", "confidence": "high", "method": "Lighthouse, trace summary, HAR summary, layout observers and image audit.", "evidence": "The trace recorded 13 long tasks, a 516.6ms longest task and 899.6ms TBT; Lighthouse attributed 7.5s to script evaluation and measured 2.8s TBT.", "pathIds": [ "home" ], "findingIds": [ "F08" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/home-trace-summary.json", "evidence/home-summary.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Lighthouse, trace summary, HAR summary, layout observers and image audit.", "evidence": "The HAR captured 385 requests and 12.5MB transferred, including 35 stylesheets and 239 scripts; parser-inserted high-priority video CSS and font/global styles form a large startup chain.", "pathIds": [ "home" ], "findingIds": [ "F09" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/home-trace-summary.json", "evidence/home-summary.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Lighthouse, trace summary, HAR summary, layout observers and image audit.", "evidence": "Lighthouse estimated 1,244KiB unused JavaScript and 85KiB unused CSS; examples include 143KiB wasted hls.js and 72KiB wasted Lottie code.", "pathIds": [ "home" ], "findingIds": [ "F10" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/home-trace-summary.json", "evidence/home-summary.json" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Lighthouse accessibility audits, DOM semantics, focus probe, image audit and screenshots.", "evidence": "Lighthouse found seven poster images without alt and a role=feed missing required child roles on the homepage; the World template also fails required ARIA parent/child relationships and list semantics.", "pathIds": [ "home" ], "findingIds": [ "F11" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/focus.json", "evidence/images.json" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "pass", "confidence": "medium", "method": "Lighthouse accessibility audits, DOM semantics, focus probe, image audit and screenshots.", "evidence": "Lighthouse did not report a color-contrast failure on either homepage or World, and normal/high-contrast screenshots remained legible.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/focus.json", "evidence/images.json" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "pass", "confidence": "medium", "method": "Lighthouse accessibility audits, DOM semantics, focus probe, image audit and screenshots.", "evidence": "Lighthouse accessibility audits, DOM semantics, focus probe, image audit and screenshots.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/focus.json", "evidence/images.json" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "pass", "confidence": "medium", "method": "Lighthouse accessibility audits, DOM semantics, focus probe, image audit and screenshots.", "evidence": "Desktop/mobile screenshots show readable serif headlines, clear sans-serif metadata, comfortable line lengths, and no text clipping on the accessible World template.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/focus.json", "evidence/images.json" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "issues", "confidence": "high", "method": "Lighthouse accessibility audits, DOM semantics, focus probe, image audit and screenshots.", "evidence": "Lighthouse identified nine target-size groups; examples include footer links whose safe clickable diameter is 15–18px, below the 24px audit floor.", "pathIds": [ "home" ], "findingIds": [ "F12" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/focus.json", "evidence/images.json" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "issues", "confidence": "high", "method": "Lighthouse best-practices audits, DOM/image probes and console evidence.", "evidence": "Lighthouse captured five homepage errors and three World errors, including a production React hydration error #418, FedCM failures, and repeated 404 resources.", "pathIds": [ "home" ], "findingIds": [ "F13" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/images.json" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "issues", "confidence": "high", "method": "Lighthouse best-practices audits, DOM/image probes and console evidence.", "evidence": "The image primitive found 25 of 29 images without width/height attributes, while the World layout showed a large late shift.", "pathIds": [ "home" ], "findingIds": [ "F14" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/images.json" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "issues", "confidence": "high", "method": "Lighthouse best-practices audits, DOM/image probes and console evidence.", "evidence": "Lighthouse found an unload listener in adslot code, a BFCache failure, missing source maps, and DevTools inspector issues.", "pathIds": [ "home" ], "findingIds": [ "F15" ], "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/images.json" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "medium", "method": "Raw-vs-rendered discoverability, DOM metadata, robots and Lighthouse SEO.", "evidence": "Homepage and World each expose unique descriptive titles and meta descriptions in raw and rendered HTML.", "pathIds": [ "home", "world" ], "artifacts": [ "evidence/home-discoverability.json", "evidence/world-discoverability.json", "evidence/robots.json" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "issues", "confidence": "high", "method": "Raw-vs-rendered discoverability, DOM metadata, robots and Lighthouse SEO.", "evidence": "Lighthouse found 28 non-crawlable anchor instances (a.tpl-lbl without href), even though the page otherwise server-renders 98% of content.", "pathIds": [ "home", "world" ], "findingIds": [ "F16" ], "artifacts": [ "evidence/home-discoverability.json", "evidence/world-discoverability.json", "evidence/robots.json" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "pass", "confidence": "medium", "method": "Raw-vs-rendered discoverability, DOM metadata, robots and Lighthouse SEO.", "evidence": "Homepage and World returned 200, include canonical and hreflang links, are not accidentally noindexed, and robots.txt advertises multiple sitemaps.", "pathIds": [ "home", "world" ], "artifacts": [ "evidence/home-discoverability.json", "evidence/world-discoverability.json", "evidence/robots.json" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "pass", "confidence": "medium", "method": "Raw-vs-rendered discoverability, DOM metadata, robots and Lighthouse SEO.", "evidence": "Homepage exposes WebSite and NewsMediaOrganization JSON-LD plus Open Graph metadata; World exposes CollectionPage and NewsMediaOrganization metadata aligned with visible content.", "pathIds": [ "home", "world" ], "artifacts": [ "evidence/home-discoverability.json", "evidence/world-discoverability.json", "evidence/robots.json" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Headers, cookies, trackers, secrets, HAR and authentication-route attempt.", "evidence": "The headers probe found CSP allowing unsafe-inline and unsafe-eval. Cookie inspection found nyt-gdpr and nyt-geo without Secure and six cookies using SameSite=None.", "pathIds": [ "home" ], "findingIds": [ "F17" ], "artifacts": [ "evidence/headers.json", "evidence/cookies.json", "evidence/trackers.json", "evidence/secrets.json", "evidence/login-mobile.png" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "issues", "confidence": "high", "method": "Headers, cookies, trackers, secrets, HAR and authentication-route attempt.", "evidence": "The consent UI names 336 vendors; the tracker probe observed 24 third-party origins and known ad trackers, while the HAR attributed 147 requests and 10.1MB to origins classified as third-party.", "pathIds": [ "home" ], "findingIds": [ "F18" ], "artifacts": [ "evidence/headers.json", "evidence/cookies.json", "evidence/trackers.json", "evidence/secrets.json", "evidence/login-mobile.png" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "blocked", "confidence": "high", "method": "Headers, cookies, trackers, secrets, HAR and authentication-route attempt.", "evidence": "The login route was attempted but bot protection blocked access before authentication methods or permission timing could be inspected.", "pathIds": [ "article", "search", "login" ], "reason": "The login route was attempted but bot protection blocked access before authentication methods or permission timing could be inspected.", "artifacts": [ "evidence/headers.json", "evidence/cookies.json", "evidence/trackers.json", "evidence/secrets.json", "evidence/login-mobile.png" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Headers, cookies, trackers, secrets, HAR and authentication-route attempt.", "evidence": "The headers probe found no Referrer-Policy; Permissions-Policy was present but limited to browsing-topics=(), while HSTS, nosniff, and X-Frame-Options were correctly configured.", "pathIds": [ "home" ], "findingIds": [ "F19" ], "artifacts": [ "evidence/headers.json", "evidence/cookies.json", "evidence/trackers.json", "evidence/secrets.json", "evidence/login-mobile.png" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "pass", "confidence": "medium", "method": "No-JS/raw HTML comparison and representative failure-route attempts.", "evidence": "Discoverability captures found 98% homepage and 97% World rendered-content coverage in raw HTML, with title, h1 and description available without JavaScript.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-discoverability.json", "evidence/world-discoverability.json", "evidence/article-discoverability.json" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "pass", "confidence": "medium", "method": "No-JS/raw HTML comparison and representative failure-route attempts.", "evidence": "The loaded index templates expose semantic dialog navigation, server-rendered core content, and no clipped overlay was observed on the accessible homepage/World states.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-discoverability.json", "evidence/world-discoverability.json", "evidence/article-discoverability.json" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "not-applicable", "confidence": "high", "method": "No-JS/raw HTML comparison and representative failure-route attempts.", "evidence": "The audited public news pages are content documents rather than an installed app; offline installability is contextual and not required for this report.", "pathIds": [ "home" ], "reason": "The audited public news pages are content documents rather than an installed app; offline installability is contextual and not required for this report.", "artifacts": [ "evidence/home-discoverability.json", "evidence/world-discoverability.json", "evidence/article-discoverability.json" ] }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "blocked", "confidence": "high", "method": "No-JS/raw HTML comparison and representative failure-route attempts.", "evidence": "Representative search/article routes returned the external anti-bot 403 state; offline and application-owned network-failure handling could not be isolated.", "pathIds": [ "article", "search", "login" ], "reason": "Representative search/article routes returned the external anti-bot 403 state; offline and application-owned network-failure handling could not be isolated.", "artifacts": [ "evidence/home-discoverability.json", "evidence/world-discoverability.json", "evidence/article-discoverability.json" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "pass", "confidence": "medium", "method": "DOM lang/hreflang/time markup and CSS logical-property inspection.", "evidence": "Both templates declare lang=en, provide 7–9 hreflang variants and visible international language links, and loaded CSS contains logical properties.", "pathIds": [ "home", "world" ], "artifacts": [ "evidence/home-probe.json", "evidence/world-probe.json" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "pass", "confidence": "medium", "method": "DOM lang/hreflang/time markup and CSS logical-property inspection.", "evidence": "Visible dates/timestamps use semantic time elements with machine-readable datetime values, and regional/language variants are exposed.", "pathIds": [ "home", "world" ], "artifacts": [ "evidence/home-probe.json", "evidence/world-probe.json" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "pass", "confidence": "medium", "method": "DOM lang/hreflang/time markup and CSS logical-property inspection.", "evidence": "Breaking-news timestamps use absolute ISO datetime values while presenting human-readable relative labels, avoiding ambiguous stored local times.", "pathIds": [ "home", "world" ], "artifacts": [ "evidence/home-probe.json", "evidence/world-probe.json" ] }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "pass", "confidence": "medium", "method": "Consent screenshot plus search/login/account flow attempts.", "evidence": "The consent first layer gives Accept all and Reject all equal visual prominence and provides direct policy/management links; subscription pricing is visible in the masthead.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/search-mobile.png", "evidence/login-mobile.png" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "blocked", "confidence": "high", "method": "Consent screenshot plus search/login/account flow attempts.", "evidence": "The search and login forms were attempted but blocked before invalid-input and validation states could be exercised.", "pathIds": [ "article", "search", "login" ], "reason": "The search and login forms were attempted but blocked before invalid-input and validation states could be exercised.", "artifacts": [ "evidence/home-desktop.png", "evidence/search-mobile.png", "evidence/login-mobile.png" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "blocked", "confidence": "high", "method": "Consent screenshot plus search/login/account flow attempts.", "evidence": "The login/account form was blocked before field autocomplete and input-assistance attributes could be inspected.", "pathIds": [ "article", "search", "login" ], "reason": "The login/account form was blocked before field autocomplete and input-assistance attributes could be inspected.", "artifacts": [ "evidence/home-desktop.png", "evidence/search-mobile.png", "evidence/login-mobile.png" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "blocked", "confidence": "high", "method": "Consent screenshot plus search/login/account flow attempts.", "evidence": "The login and subscription/account journey was blocked by anti-bot protection before commitments, cancellation, and reauthentication could be assessed.", "pathIds": [ "article", "search", "login" ], "reason": "The login and subscription/account journey was blocked by anti-bot protection before commitments, cancellation, and reauthentication could be assessed.", "artifacts": [ "evidence/home-desktop.png", "evidence/search-mobile.png", "evidence/login-mobile.png" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "HAR/network, image, Lighthouse code coverage and media evidence.", "evidence": "The image primitive classified all 29 image URLs as legacy-format paths, found 25 missing intrinsic dimensions and one missing responsive source set; delivery may negotiate WebP, but markup remains inconsistent.", "pathIds": [ "home" ], "findingIds": [ "F20" ], "artifacts": [ "evidence/home-summary.json", "evidence/images.json", "evidence/home-lighthouse.json" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "issues", "confidence": "high", "method": "HAR/network, image, Lighthouse code coverage and media evidence.", "evidence": "The HAR shows 239 scripts and 7.3MB media transfer, while Lighthouse identifies 1.24MB unused JS and 7.5s script evaluation.", "pathIds": [ "home" ], "findingIds": [ "F21" ], "artifacts": [ "evidence/home-summary.json", "evidence/images.json", "evidence/home-lighthouse.json" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "HAR/network, image, Lighthouse code coverage and media evidence.", "evidence": "Two 1080p video segments account for about 7.3MB; total transferred bytes are 12.5MB and third-party-classified origins account for 10.1MB.", "pathIds": [ "home" ], "findingIds": [ "F22" ], "artifacts": [ "evidence/home-summary.json", "evidence/images.json", "evidence/home-lighthouse.json" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "not-applicable", "confidence": "high", "method": "robots.txt and DOM/source capability inspection.", "evidence": "The publisher explicitly disallows major AI agents in robots.txt and does not signal an intent to expose agent-facing capabilities; this emerging check is judged out of scope.", "pathIds": [ "home" ], "reason": "The publisher explicitly disallows major AI agents in robots.txt and does not signal an intent to expose agent-facing capabilities; this emerging check is judged out of scope.", "artifacts": [ "evidence/robots.json", "evidence/home-probe.json" ] }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "robots.txt and DOM/source capability inspection.", "evidence": "No user-facing task in the audited news index requires on-device inference, and the publisher does not signal agent/on-device-AI intent.", "pathIds": [ "home" ], "reason": "No user-facing task in the audited news index requires on-device inference, and the publisher does not signal agent/on-device-AI intent.", "artifacts": [ "evidence/robots.json", "evidence/home-probe.json" ] }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "pass", "confidence": "low", "method": "Baseline and post-interaction heap summaries.", "evidence": "After ten attempted menu open/close cycles, the separate post snapshot was only 3.0% larger by self size and closure count declined; this is low-confidence evidence and does not establish unbounded retained growth.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post.heapsnapshot" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "issues", "confidence": "low", "method": "Baseline and post-interaction heap summaries.", "evidence": "The baseline heap summary contains 1,956,211 nodes and 120.1MB self size, including 385k native nodes, 554k objects and 113k closures.", "pathIds": [ "home" ], "findingIds": [ "F23" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post.heapsnapshot" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "low", "method": "Baseline and post-interaction heap summaries.", "evidence": "Neither heap summary exposed Detached* constructors among dominant retainers, and closure count fell from 113,647 to 111,889 after the interaction run.", "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": "pass" }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "pass" }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "F02" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F03", "F04", "F05" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "incomplete", "reason": "Article, search, and login journeys were attempted, but NYTimes bot protection returned a robot-block page before the representative flows could be completed. Search and account recovery/error states could not be exercised because bot protection blocked the routes before the application UI loaded." }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F06", "F07", "F08", "F09", "F10" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F11", "F12" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "F13", "F14", "F15" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "F16" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F17", "F18", "F19" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "incomplete", "reason": "Representative search/article routes returned the external anti-bot 403 state; offline and application-owned network-failure handling could not be isolated." }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "pass" }, { "principleId": "be-trustworthy", "expectation": "default", "status": "incomplete", "reason": "The search and login forms were attempted but blocked before invalid-input and validation states could be exercised. The login/account form was blocked before field autocomplete and input-assistance attributes could be inspected. The login and subscription/account journey was blocked by anti-bot protection before commitments, cancellation, and reauthentication could be assessed." }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F20", "F21", "F22" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "not-applicable", "reason": "The publisher explicitly disallows major AI agents in robots.txt and does not signal an intent to expose agent-facing capabilities; this emerging check is judged out of scope. No user-facing task in the audited news index requires on-device inference, and the publisher does not signal agent/on-device-AI intent." }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "issues", "findingIds": [ "F23" ] } ], "paths": [ { "id": "home", "description": "Homepage and primary news index; desktop/mobile, preferences, accessibility, performance, network, privacy, discoverability and memory.", "url": "https://www.nytimes.com/", "conditions": [ "desktop 1440x1000", "mobile 360x800", "prefers-color-scheme: dark", "prefers-contrast: more", "prefers-reduced-motion: reduce", "fresh consent state", "consent rejected" ], "result": "issues" }, { "id": "world", "description": "World section listing template representing section/collection pages.", "url": "https://www.nytimes.com/section/world", "conditions": [ "mobile 360x800", "Lighthouse mobile", "raw HTML/no JavaScript" ], "result": "issues" }, { "id": "article", "description": "Representative editorial article/detail template selected from the live homepage.", "url": "https://www.nytimes.com/2026/07/27/technology/meta-data-center-louisiana.html", "conditions": [ "mobile 360x800", "raw crawler fetch" ], "result": "failed" }, { "id": "search", "description": "Primary search/results journey using a representative climate query.", "url": "https://www.nytimes.com/search?query=climate", "conditions": [ "mobile 360x800" ], "result": "failed" }, { "id": "login", "description": "Authentication/account entry journey reached from the masthead.", "url": "https://myaccount.nytimes.com/auth/login?response_type=cookie&client_id=vi&redirect_uri=https%3A%2F%2Fwww.nytimes.com%2F&asset=masthead", "conditions": [ "mobile 360x800" ], "result": "failed" } ], "findings": [ { "id": "F01", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "user-experience", "severity": "medium", "confidence": "high", "summary": "The public news experience is locked to a light palette even when the user requests dark mode.", "evidence": "The dark-mode screenshot is visually identical to the light capture, the page declares meta color-scheme=light, and computed body background remains white.", "artifacts": [ "evidence/home-dark.png", "evidence/home-dom.json" ], "suggestedFix": "Declare color-scheme: light dark and define preference-driven surface, text, border, image-treatment, and browser-chrome colors with prefers-color-scheme or light-dark().", "effort": "large" }, { "id": "F02", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "maximize-content-reduce-noise", "principleCheckId": "no-intrusive-interruptions", "guidanceId": "light-dismiss-a-dialog", "guidanceCategory": "user-experience", "severity": "high", "confidence": "high", "summary": "A consent panel obscures a large share of the primary news content on every fresh load.", "evidence": "Desktop and mobile first-load screenshots show the “Manage privacy preferences” panel covering the lower 25% of desktop and most of the 360px viewport before any user action.", "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ], "suggestedFix": "Minimise the first-layer notice, preserve equally prominent accept/reject choices, and make the content usable without a viewport-dominating interruption.", "effort": "medium" }, { "id": "F03", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "adapt-to-the-form-factor", "principleCheckId": "responsive-no-horizontal-scroll", "guidanceId": "fluid-scaling", "guidanceCategory": "css", "severity": "high", "confidence": "high", "summary": "The homepage overflows horizontally at a 360px viewport.", "evidence": "The mobile layout primitive measured scrollWidth 627px against clientWidth 360px, producing 267px of horizontal overflow despite a valid viewport meta tag.", "artifacts": [ "evidence/home-layout-mobile.json", "evidence/home-mobile.png" ], "suggestedFix": "Remove minimum/fixed widths from the homepage shell and consent UI, use intrinsic sizing and min-width:0 in grid/flex children, and regression-test at 320–400px.", "effort": "medium" }, { "id": "F04", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "adapt-to-the-form-factor", "principleCheckId": "component-level-responsiveness", "guidanceId": "size-aware-styling", "guidanceCategory": "css", "severity": "low", "confidence": "medium", "summary": "Reusable components expose no container-query adaptation in the loaded homepage or section CSS.", "evidence": "The DOM/CSS probe found no @container or container-type signal while the same card/navigation patterns appear across differently sized regions.", "artifacts": [ "evidence/home-probe.json", "evidence/world-probe.json" ], "suggestedFix": "Give reusable card, stream, and navigation components containment and use size-aware container queries where their layout depends on available component width.", "effort": "medium" }, { "id": "F05", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "high", "summary": "Keyboard focus can be effectively invisible and several mobile targets are too tightly spaced.", "evidence": "A focused primary news link matched :focus-visible but computed to a transparent 2px outline with no box shadow. Lighthouse also identified nine footer target-size groups.", "artifacts": [ "evidence/focus.json", "evidence/home-lighthouse.json" ], "suggestedFix": "Provide a high-contrast :focus-visible ring with offset and increase target padding/spacing to at least a 24px minimum safe area, preferably 44px for primary touch controls.", "effort": "small" }, { "id": "F06", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "performance", "guidanceCategory": "performance", "severity": "critical", "confidence": "high", "summary": "Cold-load performance is far outside good user-centric thresholds on both audited templates.", "evidence": "Lighthouse measured homepage LCP 32.1s, FCP 13.4s, TBT 2,800ms and performance 0.26; World measured LCP 29.8s, FCP 8.9s and TBT 1,670ms.", "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json", "evidence/home-trace-summary.json" ], "suggestedFix": "Treat LCP and main-thread work as release blockers: profile the LCP chain, remove non-critical startup work, prioritise the true LCP asset, and set measurable CWV budgets.", "effort": "large" }, { "id": "F07", "pathId": "world", "url": "https://www.nytimes.com/section/world", "principleId": "be-fast-and-stable", "principleCheckId": "visual-stability", "guidanceId": "visually-stable-font-fallbacks", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "The World section shifts substantially after load.", "evidence": "The mobile layout observer recorded CLS 0.253, including a single 0.196 shift around 16.8s; Lighthouse independently measured non-zero CLS.", "artifacts": [ "evidence/world-layout-mobile.json", "evidence/world-lighthouse.json" ], "suggestedFix": "Identify the late stream/banner/font insertion responsible, reserve its final geometry, and use stable font fallbacks and intrinsic media dimensions.", "effort": "medium" }, { "id": "F08", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-main-thread", "guidanceId": "break-up-long-tasks", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "Heavy script execution blocks the main thread during startup.", "evidence": "The trace recorded 13 long tasks, a 516.6ms longest task and 899.6ms TBT; Lighthouse attributed 7.5s to script evaluation and measured 2.8s TBT.", "artifacts": [ "evidence/home-trace-summary.json", "evidence/home-lighthouse.json" ], "suggestedFix": "Break startup tasks into yieldable chunks, defer ad/video/account integrations until needed, and move suitable processing off the main thread.", "effort": "large" }, { "id": "F09", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-preload-priority", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "The homepage performs an exceptionally large, eager network load with many critical-style candidates.", "evidence": "The HAR captured 385 requests and 12.5MB transferred, including 35 stylesheets and 239 scripts; parser-inserted high-priority video CSS and font/global styles form a large startup chain.", "artifacts": [ "evidence/home-summary.json", "evidence/home.har" ], "suggestedFix": "Restrict preloads and parser-blocking styles to above-the-fold needs, lazy-load video/player bundles, consolidate critical CSS, and apply effective immutable caching.", "effort": "large" }, { "id": "F10", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "identify-heavy-scripts", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "Large amounts of JavaScript and CSS are unused on the initial homepage view.", "evidence": "Lighthouse estimated 1,244KiB unused JavaScript and 85KiB unused CSS; examples include 143KiB wasted hls.js and 72KiB wasted Lottie code.", "artifacts": [ "evidence/home-lighthouse.json", "evidence/home-summary.json" ], "suggestedFix": "Route- and interaction-split video, animation, account, and advertising modules; load each only when its component becomes relevant.", "effort": "large" }, { "id": "F11", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Video posters and composite feeds contain accessibility-tree errors.", "evidence": "Lighthouse found seven poster images without alt and a role=feed missing required child roles on the homepage; the World template also fails required ARIA parent/child relationships and list semantics.", "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json" ], "suggestedFix": "Give meaningful posters concise alt (or alt=\"\" when decorative), implement complete feed/tab semantics, and ensure lists contain valid list children.", "effort": "medium" }, { "id": "F12", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-inclusive", "principleCheckId": "zoom-reflow-targets-and-media", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "high", "summary": "Footer controls do not provide sufficient touch target size or spacing.", "evidence": "Lighthouse identified nine target-size groups; examples include footer links whose safe clickable diameter is 15–18px, below the 24px audit floor.", "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json" ], "suggestedFix": "Increase link block padding and row/column gaps so each target has at least 24px unobstructed space, with larger targets for common mobile actions.", "effort": "small" }, { "id": "F13", "pathId": "world", "url": "https://www.nytimes.com/section/world", "principleId": "follow-best-practices", "principleCheckId": "no-console-errors", "guidanceId": "html", "guidanceCategory": "html", "severity": "medium", "confidence": "high", "summary": "Both audited templates emit runtime and network errors.", "evidence": "Lighthouse captured five homepage errors and three World errors, including a production React hydration error #418, FedCM failures, and repeated 404 resources.", "artifacts": [ "evidence/home-lighthouse.json", "evidence/world-lighthouse.json" ], "suggestedFix": "Eliminate the hydration mismatch, gate identity calls on usable FedCM state, and remove or repair missing resource requests.", "effort": "medium" }, { "id": "F14", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "guidanceId": "html", "guidanceCategory": "html", "severity": "medium", "confidence": "high", "summary": "Most homepage images omit intrinsic dimensions.", "evidence": "The image primitive found 25 of 29 images without width/height attributes, while the World layout showed a large late shift.", "artifacts": [ "evidence/images.json", "evidence/world-layout-mobile.json" ], "suggestedFix": "Emit width and height or an equivalent stable aspect ratio for every responsive image before it loads.", "effort": "medium" }, { "id": "F15", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "follow-best-practices", "principleCheckId": "browser-platform-hygiene", "guidanceId": "html", "guidanceCategory": "html", "severity": "medium", "confidence": "high", "summary": "Deprecated unload handling prevents back/forward cache restoration and large first-party bundles lack valid source maps.", "evidence": "Lighthouse found an unload listener in adslot code, a BFCache failure, missing source maps, and DevTools inspector issues.", "artifacts": [ "evidence/home-lighthouse.json" ], "suggestedFix": "Replace unload with pagehide/visibilitychange where needed, preserve BFCache eligibility, and publish valid production source maps to the intended access boundary.", "effort": "medium" }, { "id": "F16", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-discoverable", "principleCheckId": "crawlable-and-mobile-friendly", "guidanceId": "html", "guidanceCategory": "html", "severity": "medium", "confidence": "high", "summary": "Some homepage links are rendered as anchors without href values.", "evidence": "Lighthouse found 28 non-crawlable anchor instances (a.tpl-lbl without href), even though the page otherwise server-renders 98% of content.", "artifacts": [ "evidence/home-lighthouse.json", "evidence/home-discoverability.json" ], "suggestedFix": "Render navigation as real anchors with stable href values; reserve buttons for actions that do not navigate.", "effort": "small" }, { "id": "F17", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "guidanceCategory": "security", "severity": "high", "confidence": "high", "summary": "Cookie and CSP settings weaken otherwise strong HTTPS transport.", "evidence": "The headers probe found CSP allowing unsafe-inline and unsafe-eval. Cookie inspection found nyt-gdpr and nyt-geo without Secure and six cookies using SameSite=None.", "artifacts": [ "evidence/headers.json", "evidence/cookies.json" ], "suggestedFix": "Remove unsafe-eval/unsafe-inline through nonces or hashes, set Secure on all HTTPS cookies, and use Lax/Strict unless cross-site delivery is required.", "effort": "large" }, { "id": "F18", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-private-and-secure", "principleCheckId": "data-minimisation-and-third-parties", "guidanceId": "privacy", "guidanceCategory": "privacy", "severity": "high", "confidence": "high", "summary": "The fresh-load privacy and tracking footprint is disproportionate for reading the front page.", "evidence": "The consent UI names 336 vendors; the tracker probe observed 24 third-party origins and known ad trackers, while the HAR attributed 147 requests and 10.1MB to origins classified as third-party.", "artifacts": [ "evidence/home-desktop.png", "evidence/trackers.json", "evidence/home-summary.json" ], "suggestedFix": "Default to a minimal non-personalised stack, remove vendors without direct reader value, delay optional tags until explicit consent, and batch first-party measurement.", "effort": "large" }, { "id": "F19", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "guidanceId": "security", "guidanceCategory": "security", "severity": "medium", "confidence": "high", "summary": "Referrer policy is not explicitly set and the permissions policy only disables browsing topics.", "evidence": "The headers probe found no Referrer-Policy; Permissions-Policy was present but limited to browsing-topics=(), while HSTS, nosniff, and X-Frame-Options were correctly configured.", "artifacts": [ "evidence/headers.json" ], "suggestedFix": "Set a deliberate Referrer-Policy such as strict-origin-when-cross-origin and enumerate denied-by-default powerful features in Permissions-Policy.", "effort": "small" }, { "id": "F20", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "optimize-image-priority", "guidanceCategory": "performance", "severity": "medium", "confidence": "high", "summary": "Image markup does not expose an efficient, stability-friendly asset baseline.", "evidence": "The image primitive classified all 29 image URLs as legacy-format paths, found 25 missing intrinsic dimensions and one missing responsive source set; delivery may negotiate WebP, but markup remains inconsistent.", "artifacts": [ "evidence/images.json" ], "suggestedFix": "Standardise responsive srcset/sizes, intrinsic dimensions, and negotiated AVIF/WebP delivery for all editorial and decorative image variants.", "effort": "medium" }, { "id": "F21", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-sustainable", "principleCheckId": "no-wasteful-work", "guidanceId": "deprioritize-background-fetches", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "The initial page performs substantial work unrelated to immediate reading.", "evidence": "The HAR shows 239 scripts and 7.3MB media transfer, while Lighthouse identifies 1.24MB unused JS and 7.5s script evaluation.", "artifacts": [ "evidence/home-summary.json", "evidence/home-lighthouse.json" ], "suggestedFix": "Deprioritise background analytics/ad work, load media only after user intent or viewport proximity, and remove redundant startup execution.", "effort": "large" }, { "id": "F22", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-sustainable", "principleCheckId": "third-party-and-media-budget", "guidanceId": "efficient-background-processing", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "Autoloaded media and third-party delivery dominate the front-page byte budget.", "evidence": "Two 1080p video segments account for about 7.3MB; total transferred bytes are 12.5MB and third-party-classified origins account for 10.1MB.", "artifacts": [ "evidence/home-summary.json", "evidence/home.har" ], "suggestedFix": "Do not fetch video segments before playback intent, use poster-only placeholders, and enforce per-template third-party/media byte budgets.", "effort": "medium" }, { "id": "F23", "pathId": "home", "url": "https://www.nytimes.com/", "principleId": "be-memory-efficient", "principleCheckId": "bounded-footprint", "guidanceId": "defer-rendering-heavy-content", "guidanceCategory": "performance", "severity": "medium", "confidence": "medium", "summary": "The homepage has a very large initial JavaScript heap/object population for a news index.", "evidence": "The baseline heap summary contains 1,956,211 nodes and 120.1MB self size, including 385k native nodes, 554k objects and 113k closures.", "artifacts": [ "evidence/heap-baseline.heapsnapshot" ], "suggestedFix": "Virtualise/defer below-fold modules, avoid hydrating static content, unload inactive media/ad components, and profile dominant native/object retainers.", "effort": "large" } ], "taskList": [ { "id": "T01", "title": "Make LCP and main-thread budgets release-blocking, then remove eager video/ad/account startup work", "priority": 1, "findingIds": [ "F06", "F08", "F09", "F10", "F21", "F22" ], "guidanceId": "performance", "status": "open" }, { "id": "T02", "title": "Reduce the pre-consent vendor, tracker, script and data footprint", "priority": 2, "findingIds": [ "F02", "F17", "F18" ], "guidanceId": "privacy", "status": "open" }, { "id": "T03", "title": "Fix mobile homepage overflow, focus visibility and touch spacing", "priority": 3, "findingIds": [ "F03", "F05", "F12" ], "guidanceId": "fluid-scaling", "status": "open" }, { "id": "T04", "title": "Repair image, feed, tab and list accessibility semantics", "priority": 4, "findingIds": [ "F11", "F14", "F20" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T05", "title": "Reserve late section geometry and intrinsic media space to eliminate CLS", "priority": 5, "findingIds": [ "F07", "F14" ], "guidanceId": "visually-stable-font-fallbacks", "status": "open" }, { "id": "T06", "title": "Harden CSP, cookies, referrer and permissions policies", "priority": 6, "findingIds": [ "F17", "F19" ], "guidanceId": "security", "status": "open" }, { "id": "T07", "title": "Eliminate runtime errors, deprecated unload handling and BFCache blockers", "priority": 7, "findingIds": [ "F13", "F15" ], "guidanceId": "html", "status": "open" }, { "id": "T08", "title": "Restore href values on all navigational anchors", "priority": 8, "findingIds": [ "F16" ], "guidanceId": "html", "status": "open" }, { "id": "T09", "title": "Add a complete preference-driven dark palette", "priority": 9, "findingIds": [ "F01" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "T10", "title": "Reduce the hydrated DOM and heap footprint of below-fold modules", "priority": 10, "findingIds": [ "F23" ], "guidanceId": "defer-rendering-heavy-content", "status": "open" } ], "budget": { "wallClockSeconds": 520, "pathCount": 5, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-27T22-16-08-694Z" }