{ "url": "https://newsdig.tbs.co.jp", "auditedAt": "2026-07-18T00:21:50.574Z", "mode": "report", "status": "completed", "statusDetail": "Coverage complete across 58 registered checks and six representative paths. No local project config applied; repository playground config is unrelated to this remote site.", "page": { "appType": "hybrid", "framework": "server-rendered HTML with client enhancement", "notes": "Japanese national news site with article, listing, weather and area-selection templates; consent-management and advertising integrations dominate first load." }, "evidenceUsed": [ "screenshot", "dom", "evaluate-probe", "layout-metrics", "trace", "har", "discoverability", "headers", "cookies", "trackers", "images", "secrets", "heap-summary", "lighthouse" ], "guidanceConsulted": [ "dark-mode", "adapt-scrollbar-to-contrast-preferences", "consistent-cross-document-transitions", "scroll-position-aware-elements", "declarative-dialog-popover-control", "html", "fluid-scaling", "size-aware-styling", "accessibility", "forms", "performance", "optimize-preload-priority", "defer-rendering-heavy-content", "improve-text-layout-and-legibility", "security", "privacy", "stabilize-reactive-state", "persistent-top-layer-ui", "deliver-optimized-decorative-images", "efficient-background-processing", "deprioritize-background-fetches", "agentic-forms", "language-model" ], "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": "Active evidence review against the mapped guidance and representative paths.", "evidence": "The dark-condition screenshot is byte-identical to the light capture and the CSS preference probe found no prefers-color-scheme rule.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dark.png", "evidence/preferences-probe.json" ], "findingIds": [ "F-01" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "Reduced-motion emulation reported zero active animations; no auto-advance motion was observed.", "pathIds": [ "home" ], "artifacts": [ "evidence/preferences-probe.json" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Lighthouse failed color-contrast and the focused-control probe found no visible outlines on sampled controls.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/platform-a11y-probe.json" ], "findingIds": [ "F-02" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "DOM/CSS inspection found no View Transition declarations while primary navigation is cross-document.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png" ], "findingIds": [ "F-03" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "No scroll-linked decorative motion was observed and the CSS probe found no scroll timeline requiring a main-thread substitute.", "pathIds": [ "home" ], "artifacts": [ "evidence/preferences-probe.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "The tested pages rely on native scrolling and ordinary links; no custom pointer-driven gesture layer was observed.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "The long homepage has static navigation and the preference/CSS probe found no scroll-state or scroll-timeline rules.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/preferences-probe.json" ], "findingIds": [ "F-04" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "No tooltip or anchored-menu interaction was present on the representative reading paths; the consent dialog is centered rather than attached to an anchor.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png" ] }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "Clear section headings, selected navigation styling, breadcrumbs on articles, and descriptive links guide reading.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/article-metadata-probe.json" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Desktop and mobile load screenshots show a modal consent wall covering the news; on mobile its content is clipped horizontally.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ], "findingIds": [ "F-05" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "The area probe reports consent controls plus multiple injected h1 elements and dialogs in the page structure.", "pathIds": [ "home" ], "artifacts": [ "evidence/area-flow-probe.json", "evidence/platform-a11y-probe.json" ], "findingIds": [ "F-06" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "The first viewport is dominated by two navigation rows and the consent layer; the homepage exposes 100 images and many competing sections.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-images.json" ], "findingIds": [ "F-07" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "At viewport 360x800, layout measured scrollWidth 1241 and 881 px horizontal overflow; the consent dialog is visibly clipped.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json" ], "findingIds": [ "F-08" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "The 360px evidence retains a 1241px layout and the CSS probe found no container-query rules.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile-layout.json", "evidence/preferences-probe.json" ], "findingIds": [ "F-09" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "The focus probe found outline none on sampled links/buttons and a visible search button measured only 16x16 px.", "pathIds": [ "home" ], "artifacts": [ "evidence/platform-a11y-probe.json" ], "findingIds": [ "F-10" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "The TBS NEWS DIG identity, トップニュース heading, lead headline and category navigation clearly communicate the news-reading purpose.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Every fresh-path screenshot opens behind the consent wall, requiring a detour before reading an article or forecast.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ], "findingIds": [ "F-11" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "A deliberately invalid URL produced a localized not-found explanation and routes back to the news home/categories.", "pathIds": [ "home" ], "artifacts": [ "evidence/404-probe.json", "evidence/404.png" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Lighthouse measured LCP 6.2s, FCP 4.1s, TBT 450ms and performance 0.50; trace LCP was 3.03s.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/home-trace-summary.json" ], "findingIds": [ "F-12" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "Layout observation measured CLS 0.0056 and Lighthouse measured 0.021, both within the good range.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile-layout.json", "evidence/lighthouse-home-summary.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Lighthouse recorded 3.4s main-thread work, 1.5s JS execution, 450ms TBT and 29s time to interactive.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/home-trace-summary.json" ], "findingIds": [ "F-13" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "HAR recorded 218 requests and 3.28MB, including 49 font requests; Lighthouse found render-blocking requests with 880ms savings and weak cache lifetimes.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/lighthouse-home-summary.json" ], "findingIds": [ "F-14" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Lighthouse estimated 644KiB unused JavaScript and 84KiB unused CSS; HAR recorded 46 script requests.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/home-summary.json" ], "findingIds": [ "F-15" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Lighthouse failed link-name; the image primitive found 54 images without alt and the homepage H1 is empty.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/home-images.json", "evidence/platform-a11y-probe.json" ], "findingIds": [ "F-16" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Lighthouse failed its color-contrast audit.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home-summary.json" ], "findingIds": [ "F-17" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "The homepage has an empty H1, consent injection adds multiple H1s, and sampled focused controls retained outline none.", "pathIds": [ "home" ], "artifacts": [ "evidence/platform-a11y-probe.json", "evidence/area-flow-probe.json" ], "findingIds": [ "F-18" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "The 360px screenshot cuts off consent copy and controls because the document remains 1241px wide.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json" ], "findingIds": [ "F-19" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Layout has 881px overflow at 360px and a search control measured 16x16px.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile-layout.json", "evidence/platform-a11y-probe.json" ], "findingIds": [ "F-20" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Lighthouse failed errors-in-console.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home-summary.json" ], "findingIds": [ "F-21" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Doctype/UTF-8 are valid, but the main H1 is empty and image inspection found 54 missing alt attributes and 29 images without srcset.", "pathIds": [ "home" ], "artifacts": [ "evidence/platform-a11y-probe.json", "evidence/home-images.json" ], "findingIds": [ "F-22" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Lighthouse reported a deprecated API, Inspector issues and five BFCache failure reasons.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse-home-summary.json" ], "findingIds": [ "F-23" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "Home and article probes found unique descriptive titles and meta descriptions.", "pathIds": [ "home" ], "artifacts": [ "evidence/article-metadata-probe.json", "evidence/home-recon.json" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "Real href links, viewport metadata, robots.txt and a sitemap index were present; Lighthouse SEO scored 1.00.", "pathIds": [ "home" ], "artifacts": [ "evidence/platform-a11y-probe.json", "evidence/crawl-manifest-probe.json", "evidence/lighthouse-home-summary.json" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "HTTP 200, canonical URLs, permissive general indexing rules and a current sitemap index were observed.", "pathIds": [ "home" ], "artifacts": [ "evidence/article-metadata-probe.json", "evidence/crawl-manifest-probe.json" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "The article exposes matching NewsArticle/Breadcrumb JSON-LD plus complete Open Graph metadata.", "pathIds": [ "home" ], "artifacts": [ "evidence/article-metadata-probe.json" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "HTTPS/HSTS/nosniff are present, but CSP is missing and all 15 observed cookies were flagged insecure; many use SameSite=None.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json", "evidence/home-cookies.json" ], "findingIds": [ "F-24" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Tracker evidence found 67 third-party origins and 15 known tracker domains; HAR recorded 218 requests before a consent choice.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-trackers.json", "evidence/home-summary.json" ], "findingIds": [ "F-25" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "Notification permission remained default with no prompt on load, and no authentication flow exists on the sampled public news paths.", "pathIds": [ "home" ], "artifacts": [ "evidence/capabilities-probe.json" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Headers include HSTS, nosniff and SAMEORIGIN, but lack CSP, Referrer-Policy and Permissions-Policy.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-headers.json" ], "findingIds": [ "F-26" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Discoverability measured only 20% raw-content coverage on home and 18% on the article; the raw article lacked its title and H1.", "pathIds": [ "article" ], "artifacts": [ "evidence/home-discoverability.json", "evidence/article-discoverability.json" ], "findingIds": [ "F-27" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "The mobile screenshot clips the modal and layout reports 881px overflow.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json" ], "findingIds": [ "F-28" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "A service worker and manifest exist, but manifest display is browser and no offline fallback was exposed by the inspected configuration.", "pathIds": [ "home" ], "artifacts": [ "evidence/capabilities-probe.json" ], "findingIds": [ "F-29" ] }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "The invalid route shows a clear Japanese not-found message and useful home/category recovery links.", "pathIds": [ "home" ], "artifacts": [ "evidence/404-probe.json", "evidence/404.png" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "The document declares lang=\"ja\" and the sampled Japanese layout follows the expected left-to-right reading order.", "pathIds": [ "home" ], "artifacts": [ "evidence/platform-a11y-probe.json" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "Rendered publication dates use Japanese year/month/day conventions and article metadata uses an unambiguous ISO offset.", "pathIds": [ "home" ], "artifacts": [ "evidence/article-metadata-probe.json" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "NewsArticle datePublished/dateModified include +09:00 offsets, avoiding ambiguous publication times.", "pathIds": [ "home" ], "artifacts": [ "evidence/article-metadata-probe.json" ] }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "The blocking consent wall foregrounds Consent and delays access to public-interest news; mobile content is unreadable behind it.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ], "findingIds": [ "F-30" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "not-applicable", "confidence": "high", "method": "Recon of forms and available journeys across representative paths.", "evidence": "No required data-entry or submission form exists in the sampled public news, article, weather, listing, or area-selection journey.", "reason": "No required data-entry or submission form exists in the sampled public news, article, weather, listing, or area-selection journey.", "pathIds": [ "home", "area" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "not-applicable", "confidence": "high", "method": "Recon of forms and available journeys across representative paths.", "evidence": "The sampled site has only optional search inputs, not address, payment, sign-in or sign-up fields requiring autofill assistance.", "reason": "The sampled site has only optional search inputs, not address, payment, sign-in or sign-up fields requiring autofill assistance.", "pathIds": [ "home", "area" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "not-applicable", "confidence": "high", "method": "Recon of forms and available journeys across representative paths.", "evidence": "No checkout, subscription, authentication or account-management flow is offered on the representative public paths.", "reason": "No checkout, subscription, authentication or account-management flow is offered on the representative public paths.", "pathIds": [ "home", "area" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Image evidence found 29 images without srcset and 79 below-fold images not marked lazy; Lighthouse estimated image savings.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-images.json", "evidence/lighthouse-home-summary.json" ], "findingIds": [ "F-31" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "HAR recorded 218 requests, 46 scripts and 67 XHR/fetch requests; Lighthouse measured 3.4s main-thread work.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/lighthouse-home-summary.json" ], "findingIds": [ "F-32" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "The page contacted 67 third-party origins and downloaded 49 font resources within a 3.28MB transfer.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-trackers.json", "evidence/home-summary.json" ], "findingIds": [ "F-33" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Article raw-HTML coverage is 18%, while robots explicitly disallows ChatGPT-User, GPTBot, CCBot, Google-Extended and PerplexityBot.", "pathIds": [ "article" ], "artifacts": [ "evidence/article-discoverability.json", "evidence/crawl-manifest-probe.json" ], "findingIds": [ "F-34" ] }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Capabilities probe found no built-in AI surface on a long-form news product where optional local summarization could add value.", "pathIds": [ "home" ], "artifacts": [ "evidence/capabilities-probe.json" ], "findingIds": [ "F-35" ] }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "After ten top-to-bottom scroll cycles, heap self size rose about 1.4% (45.86MB to 46.51MB), not evidence of unbounded retained growth in this short run.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post.heapsnapshot" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "issues", "confidence": "high", "method": "Active evidence review against the mapped guidance and representative paths.", "evidence": "Baseline heap summary reported 794,000 nodes and 45.9MB self size before extended interaction.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot" ], "findingIds": [ "F-36" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "high", "method": "Direct review of representative visual, DOM, interaction, network or runtime evidence.", "evidence": "Heap summaries did not surface Detached* constructors among top retained constructors; the short repeated-scroll run showed bounded growth.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post.heapsnapshot" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "F-01", "F-02" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "issues", "findingIds": [ "F-03" ] }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "issues", "findingIds": [ "F-04" ] }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "F-05", "F-06", "F-07" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F-08", "F-09", "F-10" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "issues", "findingIds": [ "F-11" ] }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F-12", "F-13", "F-14", "F-15" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F-16", "F-17", "F-18", "F-19", "F-20" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "F-21", "F-22", "F-23" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "pass" }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F-24", "F-25", "F-26" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "issues", "findingIds": [ "F-27", "F-28", "F-29" ] }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "pass" }, { "principleId": "be-trustworthy", "expectation": "default", "status": "issues", "findingIds": [ "F-30" ] }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F-31", "F-32", "F-33" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "issues", "findingIds": [ "F-34", "F-35" ] }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "issues", "findingIds": [ "F-36" ] } ], "paths": [ { "id": "home", "description": "Homepage: lead-news discovery, consent entry state, global navigation, performance and security surface. Represents the main landing template.", "url": "https://newsdig.tbs.co.jp", "conditions": [ "desktop", "viewport: 360x800", "prefers-color-scheme: dark", "prefers-reduced-motion: reduce", "keyboard focus" ], "result": "issues" }, { "id": "article", "description": "Current article: core reading journey, article metadata, server rendering and shareability.", "url": "https://newsdig.tbs.co.jp/articles/-/2811775?display=1", "conditions": [ "desktop", "JavaScript disabled crawler view" ], "result": "issues" }, { "id": "latest", "description": "Latest-news listing: representative index/list template.", "url": "https://newsdig.tbs.co.jp/list/latest", "conditions": [ "desktop" ], "result": "issues" }, { "id": "weather", "description": "City weather: high-value utility template under mobile conditions.", "url": "https://newsdig.tbs.co.jp/list/weather/city/131032", "conditions": [ "viewport: 360x800" ], "result": "issues" }, { "id": "area", "description": "Area selection: representative interactive personalization/search surface.", "url": "https://newsdig.tbs.co.jp/list/area/select", "conditions": [ "desktop", "form/DOM inspection" ], "result": "issues" }, { "id": "error", "description": "Invalid URL: recovery and not-found-state journey.", "url": "https://newsdig.tbs.co.jp/this-page-does-not-exist-web-uplift", "conditions": [ "desktop" ], "result": "pass" } ], "findings": [ { "id": "F-01", "severity": "medium", "confidence": "high", "summary": "Dark preference is ignored", "evidence": "The dark-condition screenshot is byte-identical to the light capture and the CSS preference probe found no prefers-color-scheme rule.", "suggestedFix": "Declare color-scheme and provide preference-driven surface/text colors.", "effort": "small", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-dark.png", "evidence/preferences-probe.json" ] }, { "id": "F-02", "severity": "medium", "confidence": "high", "summary": "Contrast is insufficient in key UI", "evidence": "Lighthouse failed color-contrast and the focused-control probe found no visible outlines on sampled controls.", "suggestedFix": "Meet WCAG contrast and preserve controls under prefers-contrast/forced-colors.", "effort": "small", "principleId": "respect-user-preferences", "principleCheckId": "respects-contrast", "guidanceId": "adapt-scrollbar-to-contrast-preferences", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/platform-a11y-probe.json" ] }, { "id": "F-03", "severity": "low", "confidence": "high", "summary": "Route changes are abrupt", "evidence": "DOM/CSS inspection found no View Transition declarations while primary navigation is cross-document.", "suggestedFix": "Use cross-document View Transitions with a reduced-motion fallback.", "effort": "small", "principleId": "implement-natural-interactions", "principleCheckId": "view-transitions", "guidanceId": "consistent-cross-document-transitions", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-desktop.png" ] }, { "id": "F-04", "severity": "low", "confidence": "high", "summary": "Page chrome does not communicate scroll state", "evidence": "The long homepage has static navigation and the preference/CSS probe found no scroll-state or scroll-timeline rules.", "suggestedFix": "Add a lightweight scroll-position cue or progress treatment where it helps orientation.", "effort": "small", "principleId": "provide-guided-navigation", "principleCheckId": "scroll-state-aware-chrome", "guidanceId": "scroll-position-aware-elements", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-desktop.png", "evidence/preferences-probe.json" ] }, { "id": "F-05", "severity": "critical", "confidence": "high", "summary": "Consent wall obscures all content on first load", "evidence": "Desktop and mobile load screenshots show a modal consent wall covering the news; on mobile its content is clipped horizontally.", "suggestedFix": "Replace the blocking wall with a compact, localized, accessible consent surface that keeps core news readable.", "effort": "medium", "principleId": "maximize-content-reduce-noise", "principleCheckId": "no-intrusive-interruptions", "guidanceId": "declarative-dialog-popover-control", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ] }, { "id": "F-06", "severity": "medium", "confidence": "high", "summary": "Consent UI creates duplicate document structure", "evidence": "The area probe reports consent controls plus multiple injected h1 elements and dialogs in the page structure.", "suggestedFix": "Use one correctly labelled dialog with inert background, focus management and semantic actions.", "effort": "small", "principleId": "maximize-content-reduce-noise", "principleCheckId": "semantic-dismissible-primitives", "guidanceId": "declarative-dialog-popover-control", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/area-flow-probe.json", "evidence/platform-a11y-probe.json" ] }, { "id": "F-07", "severity": "medium", "confidence": "high", "summary": "Dense chrome competes with news content", "evidence": "The first viewport is dominated by two navigation rows and the consent layer; the homepage exposes 100 images and many competing sections.", "suggestedFix": "Reduce persistent navigation and defer secondary modules so the lead story remains dominant.", "effort": "small", "principleId": "maximize-content-reduce-noise", "principleCheckId": "reduced-chrome", "guidanceId": "html", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-desktop.png", "evidence/home-images.json" ] }, { "id": "F-08", "severity": "critical", "confidence": "high", "summary": "Mobile layout renders at desktop width", "evidence": "At viewport 360x800, layout measured scrollWidth 1241 and 881 px horizontal overflow; the consent dialog is visibly clipped.", "suggestedFix": "Fix viewport sizing and replace fixed widths with intrinsic/fluid layout; test every template at 360px.", "effort": "medium", "principleId": "adapt-to-the-form-factor", "principleCheckId": "responsive-no-horizontal-scroll", "guidanceId": "fluid-scaling", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json" ] }, { "id": "F-09", "severity": "medium", "confidence": "high", "summary": "Components do not adapt to their available width", "evidence": "The 360px evidence retains a 1241px layout and the CSS probe found no container-query rules.", "suggestedFix": "Adopt container queries for reused cards, navigation and consent controls.", "effort": "small", "principleId": "adapt-to-the-form-factor", "principleCheckId": "component-level-responsiveness", "guidanceId": "size-aware-styling", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-mobile-layout.json", "evidence/preferences-probe.json" ] }, { "id": "F-10", "severity": "high", "confidence": "high", "summary": "Focus and target affordances are weak", "evidence": "The focus probe found outline none on sampled links/buttons and a visible search button measured only 16x16 px.", "suggestedFix": "Provide strong :focus-visible styles and at least 44x44 CSS-pixel touch targets.", "effort": "medium", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "guidanceId": "accessibility", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/platform-a11y-probe.json" ] }, { "id": "F-11", "severity": "high", "confidence": "high", "summary": "Consent interrupts the primary reading journey", "evidence": "Every fresh-path screenshot opens behind the consent wall, requiring a detour before reading an article or forecast.", "suggestedFix": "Allow immediate access to essential content and keep consent choices proportionate.", "effort": "medium", "principleId": "support-core-task-success", "principleCheckId": "primary-flow-completion", "guidanceId": "forms", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ] }, { "id": "F-12", "severity": "high", "confidence": "high", "summary": "Loading performance misses the modern baseline", "evidence": "Lighthouse measured LCP 6.2s, FCP 4.1s, TBT 450ms and performance 0.50; trace LCP was 3.03s.", "suggestedFix": "Prioritize the lead content and reduce blocking/third-party work to reach good CWV.", "effort": "medium", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "performance", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/home-trace-summary.json" ] }, { "id": "F-13", "severity": "high", "confidence": "high", "summary": "Main-thread work delays interactivity", "evidence": "Lighthouse recorded 3.4s main-thread work, 1.5s JS execution, 450ms TBT and 29s time to interactive.", "suggestedFix": "Break up work, defer nonessential scripts, and load advertising after core content.", "effort": "medium", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-main-thread", "guidanceId": "performance", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/home-trace-summary.json" ] }, { "id": "F-14", "severity": "high", "confidence": "high", "summary": "Resource delivery is excessively complex", "evidence": "HAR recorded 218 requests and 3.28MB, including 49 font requests; Lighthouse found render-blocking requests with 880ms savings and weak cache lifetimes.", "suggestedFix": "Trim font families/weights, shorten critical chains and set effective cache policy.", "effort": "medium", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-preload-priority", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-summary.json", "evidence/lighthouse-home-summary.json" ] }, { "id": "F-15", "severity": "high", "confidence": "high", "summary": "Large unused bundles ship on first load", "evidence": "Lighthouse estimated 644KiB unused JavaScript and 84KiB unused CSS; HAR recorded 46 script requests.", "suggestedFix": "Code-split by template and defer ad/analytics bundles until needed or consented.", "effort": "medium", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "defer-rendering-heavy-content", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/home-summary.json" ] }, { "id": "F-16", "severity": "high", "confidence": "high", "summary": "Some links and images lack accessible names", "evidence": "Lighthouse failed link-name; the image primitive found 54 images without alt and the homepage H1 is empty.", "suggestedFix": "Give every functional image/link an accessible name and keep decorative images explicitly alt=\"\".", "effort": "medium", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/lighthouse-home-summary.json", "evidence/home-images.json", "evidence/platform-a11y-probe.json" ] }, { "id": "F-17", "severity": "medium", "confidence": "high", "summary": "Text contrast fails automated testing", "evidence": "Lighthouse failed its color-contrast audit.", "suggestedFix": "Update color tokens to meet WCAG AA across default, hover, focus and disabled states.", "effort": "small", "principleId": "be-inclusive", "principleCheckId": "sufficient-contrast", "guidanceId": "accessibility", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/lighthouse-home-summary.json" ] }, { "id": "F-18", "severity": "high", "confidence": "high", "summary": "Heading and keyboard-focus structure is unreliable", "evidence": "The homepage has an empty H1, consent injection adds multiple H1s, and sampled focused controls retained outline none.", "suggestedFix": "Keep one meaningful H1 per page and implement visible, ordered keyboard focus.", "effort": "medium", "principleId": "be-inclusive", "principleCheckId": "structure-and-focus", "guidanceId": "accessibility", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/platform-a11y-probe.json", "evidence/area-flow-probe.json" ] }, { "id": "F-19", "severity": "high", "confidence": "high", "summary": "Mobile text is clipped outside the viewport", "evidence": "The 360px screenshot cuts off consent copy and controls because the document remains 1241px wide.", "suggestedFix": "Reflow copy and controls within the visual viewport with readable line lengths.", "effort": "medium", "principleId": "be-inclusive", "principleCheckId": "legible-text", "guidanceId": "improve-text-layout-and-legibility", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json" ] }, { "id": "F-20", "severity": "high", "confidence": "high", "summary": "Reflow and target sizing fail on mobile", "evidence": "Layout has 881px overflow at 360px and a search control measured 16x16px.", "suggestedFix": "Ensure 320/360px reflow without two-dimensional scrolling and enlarge targets.", "effort": "medium", "principleId": "be-inclusive", "principleCheckId": "zoom-reflow-targets-and-media", "guidanceId": "fluid-scaling", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-mobile-layout.json", "evidence/platform-a11y-probe.json" ] }, { "id": "F-21", "severity": "medium", "confidence": "high", "summary": "Browser errors are logged", "evidence": "Lighthouse failed errors-in-console.", "suggestedFix": "Resolve first-party exceptions and failed integrations, and suppress neither actionable errors nor source maps.", "effort": "small", "principleId": "follow-best-practices", "principleCheckId": "no-console-errors", "guidanceId": "html", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/lighthouse-home-summary.json" ] }, { "id": "F-22", "severity": "medium", "confidence": "high", "summary": "Document semantics and image assets need cleanup", "evidence": "Doctype/UTF-8 are valid, but the main H1 is empty and image inspection found 54 missing alt attributes and 29 images without srcset.", "suggestedFix": "Repair heading semantics and standardize responsive image markup.", "effort": "small", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "guidanceId": "html", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/platform-a11y-probe.json", "evidence/home-images.json" ] }, { "id": "F-23", "severity": "medium", "confidence": "high", "summary": "Deprecated APIs and browser lifecycle blockers remain", "evidence": "Lighthouse reported a deprecated API, Inspector issues and five BFCache failure reasons.", "suggestedFix": "Remove deprecated API use and address BFCache/DevTools issues.", "effort": "small", "principleId": "follow-best-practices", "principleCheckId": "browser-platform-hygiene", "guidanceId": "html", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/lighthouse-home-summary.json" ] }, { "id": "F-24", "severity": "high", "confidence": "high", "summary": "Cookie and CSP posture is weak", "evidence": "HTTPS/HSTS/nosniff are present, but CSP is missing and all 15 observed cookies were flagged insecure; many use SameSite=None.", "suggestedFix": "Add a restrictive CSP and mark HTTPS cookies Secure with the narrowest suitable SameSite scope.", "effort": "medium", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-headers.json", "evidence/home-cookies.json" ] }, { "id": "F-25", "severity": "high", "confidence": "high", "summary": "Tracking footprint is disproportionate", "evidence": "Tracker evidence found 67 third-party origins and 15 known tracker domains; HAR recorded 218 requests before a consent choice.", "suggestedFix": "Load only essential resources before consent and consolidate/minimize advertising and analytics vendors.", "effort": "medium", "principleId": "be-private-and-secure", "principleCheckId": "data-minimisation-and-third-parties", "guidanceId": "privacy", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-trackers.json", "evidence/home-summary.json" ] }, { "id": "F-26", "severity": "medium", "confidence": "high", "summary": "Defensive response policies are incomplete", "evidence": "Headers include HSTS, nosniff and SAMEORIGIN, but lack CSP, Referrer-Policy and Permissions-Policy.", "suggestedFix": "Deploy CSP/frame-ancestors, strict referrer policy and a least-privilege Permissions-Policy.", "effort": "small", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "guidanceId": "security", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-headers.json" ] }, { "id": "F-27", "severity": "high", "confidence": "high", "summary": "Most core article content is absent without JavaScript", "evidence": "Discoverability measured only 20% raw-content coverage on home and 18% on the article; the raw article lacked its title and H1.", "suggestedFix": "Server-render article headlines/body and core navigation, then enhance with JavaScript.", "effort": "medium", "principleId": "be-resilient", "principleCheckId": "progressive-enhancement", "guidanceId": "stabilize-reactive-state", "guidanceCategory": "modern-web", "pathId": "article", "url": "https://newsdig.tbs.co.jp/articles/-/2811775?display=1", "artifacts": [ "evidence/home-discoverability.json", "evidence/article-discoverability.json" ] }, { "id": "F-28", "severity": "high", "confidence": "high", "summary": "Top-layer consent UI breaks at narrow widths", "evidence": "The mobile screenshot clips the modal and layout reports 881px overflow.", "suggestedFix": "Constrain top-layer UI to the visual viewport and test edge/fallback positions.", "effort": "medium", "principleId": "be-resilient", "principleCheckId": "resilient-runtime-behaviour", "guidanceId": "persistent-top-layer-ui", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json" ] }, { "id": "F-29", "severity": "low", "confidence": "high", "summary": "Manifest and service worker do not provide an installable app presentation", "evidence": "A service worker and manifest exist, but manifest display is browser and no offline fallback was exposed by the inspected configuration.", "suggestedFix": "If app-like use is intended, provide an installable display mode and a useful offline news shell/fallback.", "effort": "small", "principleId": "be-resilient", "principleCheckId": "offline-and-installable", "guidanceId": "performance", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/capabilities-probe.json" ] }, { "id": "F-30", "severity": "high", "confidence": "high", "summary": "Consent design pressures acceptance before reading", "evidence": "The blocking consent wall foregrounds Consent and delays access to public-interest news; mobile content is unreadable behind it.", "suggestedFix": "Offer equally clear accept/reject controls without blocking core reading and localize the explanation.", "effort": "medium", "principleId": "be-trustworthy", "principleCheckId": "no-dark-patterns", "guidanceId": "privacy", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ] }, { "id": "F-31", "severity": "medium", "confidence": "high", "summary": "Asset delivery is not consistently optimized", "evidence": "Image evidence found 29 images without srcset and 79 below-fold images not marked lazy; Lighthouse estimated image savings.", "suggestedFix": "Use responsive modern image sources and native lazy loading below the fold.", "effort": "small", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "deliver-optimized-decorative-images", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-images.json", "evidence/lighthouse-home-summary.json" ] }, { "id": "F-32", "severity": "high", "confidence": "high", "summary": "Substantial background/vendor work runs on entry", "evidence": "HAR recorded 218 requests, 46 scripts and 67 XHR/fetch requests; Lighthouse measured 3.4s main-thread work.", "suggestedFix": "Deprioritize or eliminate nonessential background fetches and advertising work.", "effort": "medium", "principleId": "be-sustainable", "principleCheckId": "no-wasteful-work", "guidanceId": "efficient-background-processing", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-summary.json", "evidence/lighthouse-home-summary.json" ] }, { "id": "F-33", "severity": "high", "confidence": "high", "summary": "Third-party and font budgets are excessive", "evidence": "The page contacted 67 third-party origins and downloaded 49 font resources within a 3.28MB transfer.", "suggestedFix": "Set strict third-party/font budgets and defer vendors until user value or consent requires them.", "effort": "medium", "principleId": "be-sustainable", "principleCheckId": "third-party-and-media-budget", "guidanceId": "deprioritize-background-fetches", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/home-trackers.json", "evidence/home-summary.json" ] }, { "id": "F-34", "severity": "low", "confidence": "high", "summary": "News content is difficult for permitted agents to consume", "evidence": "Article raw-HTML coverage is 18%, while robots explicitly disallows ChatGPT-User, GPTBot, CCBot, Google-Extended and PerplexityBot.", "suggestedFix": "If agent discovery is desired, publish complete server-rendered article content and an explicit machine-use policy/feed.", "effort": "small", "principleId": "be-agent-ready", "principleCheckId": "structured-agent-capabilities", "guidanceId": "agentic-forms", "guidanceCategory": "modern-web", "pathId": "article", "url": "https://newsdig.tbs.co.jp/articles/-/2811775?display=1", "artifacts": [ "evidence/article-discoverability.json", "evidence/crawl-manifest-probe.json" ] }, { "id": "F-35", "severity": "low", "confidence": "high", "summary": "No privacy-preserving on-device summary affordance is exposed", "evidence": "Capabilities probe found no built-in AI surface on a long-form news product where optional local summarization could add value.", "suggestedFix": "Consider an optional on-device summarizer with clear user control; do not gate core content on it.", "effort": "small", "principleId": "be-agent-ready", "principleCheckId": "on-device-inference", "guidanceId": "language-model", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/capabilities-probe.json" ] }, { "id": "F-36", "severity": "medium", "confidence": "high", "summary": "Initial memory footprint is high for a news landing page", "evidence": "Baseline heap summary reported 794,000 nodes and 45.9MB self size before extended interaction.", "suggestedFix": "Reduce vendor scripts, DOM duplication and retained ad/CMP state; establish a memory budget.", "effort": "small", "principleId": "be-memory-efficient", "principleCheckId": "bounded-footprint", "guidanceId": "performance", "guidanceCategory": "modern-web", "pathId": "home", "url": "https://newsdig.tbs.co.jp", "artifacts": [ "evidence/heap-baseline.heapsnapshot" ] } ], "taskList": [ { "id": "T-01", "title": "Replace the blocking wall with a compact, localized, accessible consent surface that keeps core news readable.", "priority": 1, "findingIds": [ "F-05" ], "guidanceId": "declarative-dialog-popover-control", "status": "open" }, { "id": "T-02", "title": "Fix viewport sizing and replace fixed widths with intrinsic/fluid layout; test every template at 360px.", "priority": 2, "findingIds": [ "F-08" ], "guidanceId": "fluid-scaling", "status": "open" }, { "id": "T-03", "title": "Provide strong :focus-visible styles and at least 44x44 CSS-pixel touch targets.", "priority": 3, "findingIds": [ "F-10" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-04", "title": "Allow immediate access to essential content and keep consent choices proportionate.", "priority": 4, "findingIds": [ "F-11" ], "guidanceId": "forms", "status": "open" }, { "id": "T-05", "title": "Prioritize the lead content and reduce blocking/third-party work to reach good CWV.", "priority": 5, "findingIds": [ "F-12" ], "guidanceId": "performance", "status": "open" }, { "id": "T-06", "title": "Break up work, defer nonessential scripts, and load advertising after core content.", "priority": 6, "findingIds": [ "F-13" ], "guidanceId": "performance", "status": "open" }, { "id": "T-07", "title": "Trim font families/weights, shorten critical chains and set effective cache policy.", "priority": 7, "findingIds": [ "F-14" ], "guidanceId": "optimize-preload-priority", "status": "open" }, { "id": "T-08", "title": "Code-split by template and defer ad/analytics bundles until needed or consented.", "priority": 8, "findingIds": [ "F-15" ], "guidanceId": "defer-rendering-heavy-content", "status": "open" }, { "id": "T-09", "title": "Give every functional image/link an accessible name and keep decorative images explicitly alt=\"\".", "priority": 9, "findingIds": [ "F-16" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-10", "title": "Keep one meaningful H1 per page and implement visible, ordered keyboard focus.", "priority": 10, "findingIds": [ "F-18" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-11", "title": "Reflow copy and controls within the visual viewport with readable line lengths.", "priority": 11, "findingIds": [ "F-19" ], "guidanceId": "improve-text-layout-and-legibility", "status": "open" }, { "id": "T-12", "title": "Ensure 320/360px reflow without two-dimensional scrolling and enlarge targets.", "priority": 12, "findingIds": [ "F-20" ], "guidanceId": "fluid-scaling", "status": "open" }, { "id": "T-13", "title": "Add a restrictive CSP and mark HTTPS cookies Secure with the narrowest suitable SameSite scope.", "priority": 13, "findingIds": [ "F-24" ], "guidanceId": "security", "status": "open" }, { "id": "T-14", "title": "Load only essential resources before consent and consolidate/minimize advertising and analytics vendors.", "priority": 14, "findingIds": [ "F-25" ], "guidanceId": "privacy", "status": "open" }, { "id": "T-15", "title": "Server-render article headlines/body and core navigation, then enhance with JavaScript.", "priority": 15, "findingIds": [ "F-27" ], "guidanceId": "stabilize-reactive-state", "status": "open" }, { "id": "T-16", "title": "Constrain top-layer UI to the visual viewport and test edge/fallback positions.", "priority": 16, "findingIds": [ "F-28" ], "guidanceId": "persistent-top-layer-ui", "status": "open" }, { "id": "T-17", "title": "Offer equally clear accept/reject controls without blocking core reading and localize the explanation.", "priority": 17, "findingIds": [ "F-30" ], "guidanceId": "privacy", "status": "open" }, { "id": "T-18", "title": "Deprioritize or eliminate nonessential background fetches and advertising work.", "priority": 18, "findingIds": [ "F-32" ], "guidanceId": "efficient-background-processing", "status": "open" }, { "id": "T-19", "title": "Set strict third-party/font budgets and defer vendors until user value or consent requires them.", "priority": 19, "findingIds": [ "F-33" ], "guidanceId": "deprioritize-background-fetches", "status": "open" }, { "id": "T-20", "title": "Declare color-scheme and provide preference-driven surface/text colors.", "priority": 20, "findingIds": [ "F-01" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "T-21", "title": "Meet WCAG contrast and preserve controls under prefers-contrast/forced-colors.", "priority": 21, "findingIds": [ "F-02" ], "guidanceId": "adapt-scrollbar-to-contrast-preferences", "status": "open" }, { "id": "T-22", "title": "Use one correctly labelled dialog with inert background, focus management and semantic actions.", "priority": 22, "findingIds": [ "F-06" ], "guidanceId": "declarative-dialog-popover-control", "status": "open" }, { "id": "T-23", "title": "Reduce persistent navigation and defer secondary modules so the lead story remains dominant.", "priority": 23, "findingIds": [ "F-07" ], "guidanceId": "html", "status": "open" }, { "id": "T-24", "title": "Adopt container queries for reused cards, navigation and consent controls.", "priority": 24, "findingIds": [ "F-09" ], "guidanceId": "size-aware-styling", "status": "open" }, { "id": "T-25", "title": "Update color tokens to meet WCAG AA across default, hover, focus and disabled states.", "priority": 25, "findingIds": [ "F-17" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T-26", "title": "Resolve first-party exceptions and failed integrations, and suppress neither actionable errors nor source maps.", "priority": 26, "findingIds": [ "F-21" ], "guidanceId": "html", "status": "open" }, { "id": "T-27", "title": "Repair heading semantics and standardize responsive image markup.", "priority": 27, "findingIds": [ "F-22" ], "guidanceId": "html", "status": "open" }, { "id": "T-28", "title": "Remove deprecated API use and address BFCache/DevTools issues.", "priority": 28, "findingIds": [ "F-23" ], "guidanceId": "html", "status": "open" }, { "id": "T-29", "title": "Deploy CSP/frame-ancestors, strict referrer policy and a least-privilege Permissions-Policy.", "priority": 29, "findingIds": [ "F-26" ], "guidanceId": "security", "status": "open" }, { "id": "T-30", "title": "Use responsive modern image sources and native lazy loading below the fold.", "priority": 30, "findingIds": [ "F-31" ], "guidanceId": "deliver-optimized-decorative-images", "status": "open" }, { "id": "T-31", "title": "Reduce vendor scripts, DOM duplication and retained ad/CMP state; establish a memory budget.", "priority": 31, "findingIds": [ "F-36" ], "guidanceId": "performance", "status": "open" }, { "id": "T-32", "title": "Use cross-document View Transitions with a reduced-motion fallback.", "priority": 32, "findingIds": [ "F-03" ], "guidanceId": "consistent-cross-document-transitions", "status": "open" }, { "id": "T-33", "title": "Add a lightweight scroll-position cue or progress treatment where it helps orientation.", "priority": 33, "findingIds": [ "F-04" ], "guidanceId": "scroll-position-aware-elements", "status": "open" }, { "id": "T-34", "title": "If app-like use is intended, provide an installable display mode and a useful offline news shell/fallback.", "priority": 34, "findingIds": [ "F-29" ], "guidanceId": "performance", "status": "open" }, { "id": "T-35", "title": "If agent discovery is desired, publish complete server-rendered article content and an explicit machine-use policy/feed.", "priority": 35, "findingIds": [ "F-34" ], "guidanceId": "agentic-forms", "status": "open" }, { "id": "T-36", "title": "Consider an optional on-device summarizer with clear user control; do not gate core content on it.", "priority": 36, "findingIds": [ "F-35" ], "guidanceId": "language-model", "status": "open" } ], "artifacts": [ { "type": "other", "path": "evidence/404-probe.json", "caption": "404 probe", "findingIds": [] }, { "type": "screenshot", "path": "evidence/404.png", "caption": "404", "findingIds": [] }, { "type": "other", "path": "evidence/area-flow-probe.json", "caption": "area flow probe", "findingIds": [ "F-06", "F-18" ] }, { "type": "screenshot", "path": "evidence/article-desktop.png", "caption": "article desktop", "findingIds": [] }, { "type": "screenshot", "path": "evidence/article-discoverability-crawler.png", "caption": "article discoverability crawler", "findingIds": [] }, { "type": "screenshot", "path": "evidence/article-discoverability-rendered.png", "caption": "article discoverability rendered", "findingIds": [] }, { "type": "discoverability", "path": "evidence/article-discoverability.json", "caption": "article discoverability", "findingIds": [ "F-27", "F-34" ] }, { "type": "dom", "path": "evidence/article-dom.json", "caption": "article dom", "findingIds": [] }, { "type": "other", "path": "evidence/article-metadata-probe.json", "caption": "article metadata probe", "findingIds": [] }, { "type": "other", "path": "evidence/capabilities-probe.json", "caption": "capabilities probe", "findingIds": [ "F-29", "F-35" ] }, { "type": "other", "path": "evidence/crawl-manifest-probe.json", "caption": "crawl manifest probe", "findingIds": [ "F-34" ] }, { "type": "heap", "path": "evidence/heap-baseline.heapsnapshot", "caption": "heap baseline", "findingIds": [ "F-36" ] }, { "type": "heap", "path": "evidence/heap-post.heapsnapshot", "caption": "heap post", "findingIds": [] }, { "type": "other", "path": "evidence/home-cookies.json", "caption": "home cookies", "findingIds": [ "F-24" ] }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "home dark", "condition": "prefers-color-scheme: dark", "findingIds": [ "F-01" ] }, { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "home desktop", "findingIds": [ "F-03", "F-04", "F-05", "F-07", "F-11", "F-30" ] }, { "type": "screenshot", "path": "evidence/home-discoverability-crawler.png", "caption": "home discoverability crawler", "findingIds": [] }, { "type": "screenshot", "path": "evidence/home-discoverability-rendered.png", "caption": "home discoverability rendered", "findingIds": [] }, { "type": "discoverability", "path": "evidence/home-discoverability.json", "caption": "home discoverability", "findingIds": [ "F-27" ] }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "home dom", "findingIds": [] }, { "type": "other", "path": "evidence/home-headers.json", "caption": "home headers", "findingIds": [ "F-24", "F-26" ] }, { "type": "other", "path": "evidence/home-images.json", "caption": "home images", "findingIds": [ "F-07", "F-16", "F-22", "F-31" ] }, { "type": "layout", "path": "evidence/home-mobile-layout.json", "caption": "home mobile layout", "condition": "viewport: 360x800", "findingIds": [ "F-08", "F-09", "F-19", "F-20", "F-28" ] }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "home mobile", "condition": "viewport: 360x800", "findingIds": [ "F-05", "F-08", "F-11", "F-19", "F-28", "F-30" ] }, { "type": "other", "path": "evidence/home-recon.json", "caption": "home recon", "findingIds": [] }, { "type": "other", "path": "evidence/home-secrets.json", "caption": "home secrets", "findingIds": [] }, { "type": "har-summary", "path": "evidence/home-summary.json", "caption": "home summary", "findingIds": [ "F-14", "F-15", "F-25", "F-32", "F-33" ] }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "home trace summary", "findingIds": [ "F-12", "F-13" ] }, { "type": "other", "path": "evidence/home-trackers.json", "caption": "home trackers", "findingIds": [ "F-25", "F-33" ] }, { "type": "screenshot", "path": "evidence/latest-desktop.png", "caption": "latest desktop", "findingIds": [] }, { "type": "har-summary", "path": "evidence/lighthouse-home-summary.json", "caption": "lighthouse home summary", "findingIds": [ "F-02", "F-12", "F-13", "F-14", "F-15", "F-16", "F-17", "F-21", "F-23", "F-31", "F-32" ] }, { "type": "other", "path": "evidence/platform-a11y-probe.json", "caption": "platform a11y probe", "findingIds": [ "F-02", "F-06", "F-10", "F-16", "F-18", "F-20", "F-22" ] }, { "type": "other", "path": "evidence/preferences-probe.json", "caption": "preferences probe", "findingIds": [ "F-01", "F-04", "F-09" ] }, { "type": "screenshot", "path": "evidence/weather-mobile.png", "caption": "weather mobile", "condition": "viewport: 360x800", "findingIds": [] }, { "type": "har", "path": "evidence/home.har", "caption": "Homepage network archive", "findingIds": [ "F-14", "F-15", "F-25", "F-32", "F-33" ] }, { "type": "trace", "path": "evidence/home-trace.json", "caption": "Homepage DevTools performance trace", "findingIds": [ "F-12", "F-13" ] }, { "type": "lighthouse", "path": "evidence/lighthouse-home.json", "caption": "Full Lighthouse report", "findingIds": [ "F-02", "F-12", "F-13", "F-14", "F-15", "F-16", "F-17", "F-21", "F-23", "F-31", "F-32" ] } ], "budget": { "pathCount": 6, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-18T00-21-50-574Z" }