{ "url": "https://www.nikkansports.com", "auditedAt": "2026-07-20T06:05:49.342Z", "mode": "report", "status": "completed", "statusDetail": "Coverage-complete report-mode audit of four representative public MPA templates.", "page": { "appType": "mpa", "framework": "Legacy server-rendered/jQuery MPA", "notes": "Japanese sports-news site with separate legacy mobile behavior, advertising, analytics, subscription, and search integrations." }, "evidenceUsed": [ "screenshot", "dom", "layout-metrics", "evaluate-probe", "trace", "har", "discoverability", "headers", "cookies", "trackers", "images", "secrets", "heap-summary", "Lighthouse", "Modern Web Guidance" ], "guidanceConsulted": [ "dark-mode", "accessibility", "same-document-transitions", "shrinking-header-on-scroll", "light-dismiss-a-dialog", "size-aware-styling", "forms", "performance", "break-up-long-tasks", "optimize-image-priority", "security", "privacy", "translator", "deliver-optimized-decorative-images", "webmcp", "manage-recurring-intervals" ], "artifacts": [ { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "home desktop", "findingIds": [ "F03", "F04", "F06" ] }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "home mobile", "condition": "viewport: 360x800", "findingIds": [ "F02", "F03", "F13" ] }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "home dark", "condition": "prefers-color-scheme: dark", "findingIds": [ "F01" ] }, { "type": "other", "path": "evidence/recon.json", "caption": "recon", "findingIds": [ "F21" ] }, { "type": "layout", "path": "evidence/home-layout-mobile.json", "caption": "home layout mobile", "condition": "viewport: 360x800", "findingIds": [ "F02" ] }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "home trace summary", "findingIds": [ "F07" ] }, { "type": "trace", "path": "evidence/home-trace.json", "caption": "home trace", "findingIds": [] }, { "type": "har", "path": "evidence/home.har", "caption": "home", "findingIds": [ "F08" ] }, { "type": "har-summary", "path": "evidence/home-summary.json", "caption": "home summary", "findingIds": [ "F04", "F08", "F09", "F18", "F22" ] }, { "type": "lighthouse", "path": "evidence/lighthouse.json", "caption": "lighthouse", "findingIds": [ "F07", "F09", "F10", "F11", "F12", "F14" ] }, { "type": "other", "path": "evidence/accessibility-platform.json", "caption": "accessibility platform", "findingIds": [ "F10", "F12", "F13", "F19" ] }, { "type": "other", "path": "evidence/focus.json", "caption": "focus", "findingIds": [ "F12" ] }, { "type": "other", "path": "evidence/images.json", "caption": "images", "findingIds": [ "F15", "F22" ] }, { "type": "other", "path": "evidence/headers.json", "caption": "headers", "findingIds": [ "F17" ] }, { "type": "other", "path": "evidence/cookies.json", "caption": "cookies", "findingIds": [ "F17", "F18" ] }, { "type": "other", "path": "evidence/trackers.json", "caption": "trackers", "findingIds": [ "F18" ] }, { "type": "discoverability", "path": "evidence/discoverability.json", "caption": "discoverability", "findingIds": [ "F16", "F23" ] }, { "type": "screenshot", "path": "evidence/discoverability-rendered.png", "caption": "discoverability rendered", "findingIds": [] }, { "type": "screenshot", "path": "evidence/discoverability-crawler.png", "caption": "discoverability crawler", "findingIds": [] }, { "type": "other", "path": "evidence/robots-sitemap.json", "caption": "robots sitemap", "findingIds": [ "F16", "F20", "F23" ] }, { "type": "other", "path": "evidence/reduced-motion.json", "caption": "reduced motion", "findingIds": [] }, { "type": "heap", "path": "evidence/heap-baseline.heapsnapshot", "caption": "heap baseline", "findingIds": [ "F24" ] }, { "type": "heap", "path": "evidence/heap-post-interaction.heapsnapshot", "caption": "heap post interaction", "findingIds": [ "F24" ] }, { "type": "screenshot", "path": "evidence/category-mobile.png", "caption": "category mobile", "condition": "viewport: 360x800", "findingIds": [ "F02" ] }, { "type": "screenshot", "path": "evidence/article-mobile.png", "caption": "article mobile", "condition": "viewport: 360x800", "findingIds": [ "F02" ] }, { "type": "screenshot", "path": "evidence/search-mobile.png", "caption": "search mobile", "condition": "viewport: 360x800", "findingIds": [ "F02", "F21" ] }, { "type": "dom", "path": "evidence/category-dom.json", "caption": "category dom", "findingIds": [ "F16" ] }, { "type": "dom", "path": "evidence/article-dom.json", "caption": "article dom", "findingIds": [ "F05", "F16" ] }, { "type": "dom", "path": "evidence/search-dom.json", "caption": "search dom", "findingIds": [ "F16" ] }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "home dom", "findingIds": [ "F01", "F05", "F06", "F11", "F16", "F19" ] }, { "type": "other", "path": "evidence/secrets.json", "caption": "secrets", "findingIds": [] } ], "config": { "loaded": false }, "coverage": { "catalogVersion": "modern-web-guidance@0.0.172", "catalogChecksum": "sha256:78ccfdb2d483f4c57d9dafed80fd86c6265585a56457c8dcfddc254b80fb44d7", "expected": 58, "recorded": 58, "judged": 58, "blocked": 0, "notRun": 0, "missing": 0, "unknown": 0, "duplicates": 0, "complete": true }, "checkOutcomes": [ { "principleId": "respect-user-preferences", "checkId": "respects-color-scheme", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "The dark-mode screenshot is visually unchanged from the desktop capture; computed styles report color-scheme: normal and a transparent/light surface.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dark.png", "evidence/home-dom.json" ], "findingIds": [ "F01" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "Reduced-motion emulation matched reduce; there were no active animations or autoplay media to suppress.", "pathIds": [ "home" ], "artifacts": [ "evidence/reduced-motion.json" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Lighthouse found white #fff text on #9fb0bc at 2.23:1, below 4.5:1; no prefers-contrast/forced-colors adaptation was found.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/home-dom.json" ], "findingIds": [ "F11" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "issues", "confidence": "medium", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "DOM inspection found no view-transition CSS/API evidence, and routes are conventional MPA navigations with no cross-document transition declaration.", "pathIds": [ "home", "article" ], "artifacts": [ "evidence/home-dom.json", "evidence/article-dom.json" ], "findingIds": [ "F05" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "DOM and runtime probes found no active animation or scroll-linked motion, so no main-thread scroll animation anti-pattern was present.", "pathIds": [ "home" ], "artifacts": [ "evidence/accessibility-platform.json", "evidence/reduced-motion.json" ] }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "Representative navigation uses native links and scrolling; no custom pointer gesture layer was observed.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dom.json" ] }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "issues", "confidence": "medium", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "The page exceeds 6,000 CSS pixels, while DOM/CSS inspection and screenshots show static chrome and no scroll progress or scroll-state treatment.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dom.json", "evidence/home-desktop.png" ], "findingIds": [ "F06" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement after representative-path recon.", "evidence": "No tooltip, popover, or anchored floating-menu interaction was present on the representative public pages.", "reason": "No tooltip, popover, or anchored floating-menu interaction was present on the representative public pages." }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "Descriptive navigation labels, topic rows, article titles, and breadcrumbs provide explicit destination cues.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/article-mobile.png" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Desktop and mobile captures show a dark fixed layer covering the bottom portion of the viewport, with only a small close affordance at the far edge.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ], "findingIds": [ "F03" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Desktop and mobile captures show a dark fixed layer covering the bottom portion of the viewport, with only a small close affordance at the far edge.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ], "findingIds": [ "F03" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "The first viewport has multiple navigation rows and a busy three-column composition; 394 requests include extensive advertising and recommendation infrastructure.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-summary.json" ], "findingIds": [ "F04" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "At a 360x800 device viewport the layout primitive reports no viewport meta, a 980 CSS-pixel layout viewport, and scale 0.367; home, category, article, and search screenshots show tiny desktop text and controls.", "pathIds": [ "home", "article", "category", "search" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-layout-mobile.json", "evidence/category-mobile.png", "evidence/article-mobile.png", "evidence/search-mobile.png" ], "findingIds": [ "F02" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "At a 360x800 device viewport the layout primitive reports no viewport meta, a 980 CSS-pixel layout viewport, and scale 0.367; home, category, article, and search screenshots show tiny desktop text and controls.", "pathIds": [ "home", "article", "category", "search" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-layout-mobile.json", "evidence/category-mobile.png", "evidence/article-mobile.png", "evidence/search-mobile.png" ], "findingIds": [ "F02" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "The platform probe counted 199 visible interactive elements below 24px in at least one dimension; scaling the desktop layout down makes targets still harder to acquire.", "pathIds": [ "home" ], "artifacts": [ "evidence/accessibility-platform.json", "evidence/home-mobile.png" ], "findingIds": [ "F13" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "Home, category, article, and search pages communicate their news/search purpose with prominent Japanese titles and headlines.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/category-mobile.png", "evidence/article-mobile.png", "evidence/search-mobile.png" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "The core public flow from headline/listing to article and query URL to search results loaded without an auth wall or dead end.", "pathIds": [ "home" ], "artifacts": [ "evidence/article-mobile.png", "evidence/search-mobile.png" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "/sitemap.xml returned a 404 document containing a timed AutoJump back to home, which can erase context before users inspect recovery options.", "pathIds": [ "home" ], "artifacts": [ "evidence/robots-sitemap.json" ], "findingIds": [ "F20" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Lighthouse measured LCP 4.2s, TBT 610ms, Speed Index 12.1s and time-to-interactive 32.7s; the CDP trace observed LCP 16.9s and 898ms total blocking time.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/home-trace-summary.json" ], "findingIds": [ "F07" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "Observed CLS was 0.039 desktop/0.044 mobile and Lighthouse CLS was 0.006, all within the good threshold.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-layout-mobile.json", "evidence/lighthouse.json" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Lighthouse measured LCP 4.2s, TBT 610ms, Speed Index 12.1s and time-to-interactive 32.7s; the CDP trace observed LCP 16.9s and 898ms total blocking time.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/home-trace-summary.json" ], "findingIds": [ "F07" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "HAR recorded 394 requests and 4.34MB transferred, including 110 scripts (2.44MB), parser-blocking legacy scripts, and missing cache headers on major resources.", "pathIds": [ "home" ], "artifacts": [ "evidence/home.har", "evidence/home-summary.json" ], "findingIds": [ "F08" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Lighthouse estimated 1,189KiB unused JavaScript and 176KiB unused CSS, while the HAR attributes 3.43MB to third parties.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/home-summary.json" ], "findingIds": [ "F09" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Lighthouse failed image-alt and link-name; the platform probe found unnamed logo/social links and images without alt text.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/accessibility-platform.json" ], "findingIds": [ "F10" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Lighthouse found white #fff text on #9fb0bc at 2.23:1, below 4.5:1; no prefers-contrast/forced-colors adaptation was found.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/home-dom.json" ], "findingIds": [ "F11" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Lighthouse failed heading-order; the DOM probe found no main landmark, an empty H1, a second H1, and skipped heading levels. Focus outlines were visible, but structure remains confusing.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/accessibility-platform.json", "evidence/focus.json" ], "findingIds": [ "F12" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "At a 360x800 device viewport the layout primitive reports no viewport meta, a 980 CSS-pixel layout viewport, and scale 0.367; home, category, article, and search screenshots show tiny desktop text and controls.", "pathIds": [ "home", "article", "category", "search" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-layout-mobile.json", "evidence/category-mobile.png", "evidence/article-mobile.png", "evidence/search-mobile.png" ], "findingIds": [ "F02" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "At a 360x800 device viewport the layout primitive reports no viewport meta, a 980 CSS-pixel layout viewport, and scale 0.367; home, category, article, and search screenshots show tiny desktop text and controls. The platform probe counted 199 visible interactive elements below 24px in at least one dimension; scaling the desktop layout down makes targets still harder to acquire.", "pathIds": [ "home", "article", "category", "search" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-layout-mobile.json", "evidence/category-mobile.png", "evidence/article-mobile.png", "evidence/search-mobile.png", "evidence/accessibility-platform.json" ], "findingIds": [ "F02", "F13" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Lighthouse recorded CORS failures, failed resources, an OpenX JSON parse error, and an uncaught pa.sendEvents TypeError.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json" ], "findingIds": [ "F14" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "The images primitive found 18 images without dimensions, 14 oversized images, 59/59 in legacy formats, 31 below-fold images not natively lazy-loaded, and no responsive sources for 13 relevant images.", "pathIds": [ "home" ], "artifacts": [ "evidence/images.json" ], "findingIds": [ "F15" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Lighthouse recorded CORS failures, failed resources, an OpenX JSON parse error, and an uncaught pa.sendEvents TypeError.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json" ], "findingIds": [ "F14" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "All four templates expose descriptive titles and meta descriptions in rendered DOM.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dom.json", "evidence/category-dom.json", "evidence/article-dom.json", "evidence/search-dom.json" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "At a 360x800 device viewport the layout primitive reports no viewport meta, a 980 CSS-pixel layout viewport, and scale 0.367; home, category, article, and search screenshots show tiny desktop text and controls.", "pathIds": [ "home", "article", "category", "search" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-layout-mobile.json", "evidence/category-mobile.png", "evidence/article-mobile.png", "evidence/search-mobile.png" ], "findingIds": [ "F02" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "No canonical link was present on home, category, article, or search templates; /sitemap.xml returned 404. Raw HTML remained strong at 96% content coverage.", "pathIds": [ "home", "article", "category", "search" ], "artifacts": [ "evidence/home-dom.json", "evidence/category-dom.json", "evidence/article-dom.json", "evidence/search-dom.json", "evidence/robots-sitemap.json", "evidence/discoverability.json" ], "findingIds": [ "F16" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "Pages provide Open Graph metadata; the article template additionally includes JSON-LD matching the visible article.", "pathIds": [ "home" ], "artifacts": [ "evidence/article-dom.json" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "HTTPS is used, but CSP, HSTS, nosniff, Referrer-Policy and Permissions-Policy are missing; 13 of 21 observed cookies lacked Secure and many used SameSite=None.", "pathIds": [ "home" ], "artifacts": [ "evidence/headers.json", "evidence/cookies.json" ], "findingIds": [ "F17" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "The tracker probe found 78 third-party origins and 16 known tracker hosts; HAR recorded 314 third-party requests and 3.43MB transferred before user interaction.", "pathIds": [ "home" ], "artifacts": [ "evidence/trackers.json", "evidence/home-summary.json", "evidence/cookies.json" ], "findingIds": [ "F18" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "issues", "confidence": "medium", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Login/account surfaces and extensive Piano scripts are present, but DOM/source recon found no WebAuthn/passkey integration; no permission prompt fired on load.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dom.json", "evidence/accessibility-platform.json" ], "findingIds": [ "F19" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "HTTPS is used, but CSP, HSTS, nosniff, Referrer-Policy and Permissions-Policy are missing; 13 of 21 observed cookies lacked Secure and many used SameSite=None.", "pathIds": [ "home" ], "artifacts": [ "evidence/headers.json", "evidence/cookies.json" ], "findingIds": [ "F17" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "Discoverability comparison found 96% of rendered content words in raw HTML and no JS shell.", "pathIds": [ "home" ], "artifacts": [ "evidence/discoverability.json", "evidence/discoverability-crawler.png", "evidence/discoverability-rendered.png" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Desktop and mobile captures show a dark fixed layer covering the bottom portion of the viewport, with only a small close affordance at the far edge.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ], "findingIds": [ "F03" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement after representative-path recon.", "evidence": "This public news MPA is content-oriented rather than an app-like workflow; installability/offline app behavior was judged out of scope despite a push manifest.", "reason": "This public news MPA is content-oriented rather than an app-like workflow; installability/offline app behavior was judged out of scope despite a push manifest." }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "/sitemap.xml returned a 404 document containing a timed AutoJump back to home, which can erase context before users inspect recovery options.", "pathIds": [ "home" ], "artifacts": [ "evidence/robots-sitemap.json" ], "findingIds": [ "F20" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "All sampled templates declare html lang=ja and render in the expected left-to-right Japanese reading context.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-dom.json", "evidence/article-dom.json" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "Visible dates and scores are rendered in Japanese conventions on the sampled, deliberately Japanese-localised site.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/article-mobile.png" ] }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement after representative-path recon.", "evidence": "Representative pages show publication dates but no cross-time-zone scheduling or recurring-event workflow requiring zone conversion.", "reason": "Representative pages show publication dates but no cross-time-zone scheduling or recurring-event workflow requiring zone conversion." }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "No consent wall, confirmshaming, hidden pricing, or forced-continuity flow appeared in the representative public reading/search screenshots.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-desktop.png", "evidence/search-mobile.png" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement after representative-path recon.", "evidence": "The representative search flow has no required-field validation step; no user-data form was submitted.", "reason": "The representative search flow has no required-field validation step; no user-data form was submitted." }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "The search form works, but its text input has no autocomplete token or explicit aria-label in recon; the UI relies on surrounding presentation.", "pathIds": [ "home", "search" ], "artifacts": [ "evidence/recon.json", "evidence/search-mobile.png" ], "findingIds": [ "F21" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement after representative-path recon.", "evidence": "Checkout, subscription cancellation, and authenticated account management require credentials or a purchase and were outside this public, non-destructive audit.", "reason": "Checkout, subscription cancellation, and authenticated account management require credentials or a purchase and were outside this public, non-destructive audit." }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "The images primitive found 18 images without dimensions, 14 oversized images, 59/59 in legacy formats, 31 below-fold images not natively lazy-loaded, and no responsive sources for 13 relevant images.", "pathIds": [ "home" ], "artifacts": [ "evidence/images.json" ], "findingIds": [ "F15" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Lighthouse estimated 1,189KiB unused JavaScript and 176KiB unused CSS, while the HAR attributes 3.43MB to third parties.", "pathIds": [ "home" ], "artifacts": [ "evidence/lighthouse.json", "evidence/home-summary.json" ], "findingIds": [ "F09" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "Third parties account for 314 requests and 3.43MB; three YouTube thumbnails alone exceed 500KB, while every inspected image uses a legacy format.", "pathIds": [ "home" ], "artifacts": [ "evidence/home-summary.json", "evidence/images.json" ], "findingIds": [ "F22" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "issues", "confidence": "high", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "robots.txt disallows GPTBot, ChatGPT-User, Google-Extended, anthropic-ai and Claude-Web; recon found no WebMCP/agentic tool registration. This is an emerging opportunity, not a conventional SEO failure.", "pathIds": [ "home" ], "artifacts": [ "evidence/robots-sitemap.json", "evidence/discoverability.json" ], "findingIds": [ "F23" ] }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement after representative-path recon.", "evidence": "No user task on the sampled news reading/search paths requires on-device inference; its absence is not a failure.", "reason": "No user task on the sampled news reading/search paths requires on-device inference; its absence is not a failure." }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "issues", "confidence": "medium", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "The baseline heap summary reported 1,049,842 nodes and 52.9MB self size; after ten end-to-end scroll cycles the post summary reported 1,324,198 nodes and 65.4MB. Dynamic ad/feed caching may explain some growth, so leak attribution is medium confidence.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post-interaction.heapsnapshot" ], "findingIds": [ "F24" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "issues", "confidence": "medium", "method": "Direct visual, DOM, runtime, Lighthouse, or CDP evidence mapped to this atomic check.", "evidence": "The baseline heap summary reported 1,049,842 nodes and 52.9MB self size; after ten end-to-end scroll cycles the post summary reported 1,324,198 nodes and 65.4MB. Dynamic ad/feed caching may explain some growth, so leak attribution is medium confidence.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post-interaction.heapsnapshot" ], "findingIds": [ "F24" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "high", "method": "Direct representative-path visual/DOM/runtime inspection.", "evidence": "Heap summaries did not surface Detached* constructors among dominant retained objects; no active animation or media timers appeared in runtime probes.", "pathIds": [ "home" ], "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post-interaction.heapsnapshot", "evidence/reduced-motion.json" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "F01", "F11" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "issues", "findingIds": [ "F05" ] }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "issues", "findingIds": [ "F06" ] }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "F03", "F04" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F02", "F13" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "issues", "findingIds": [ "F20" ] }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F07", "F08", "F09" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F10", "F11", "F12", "F02", "F13" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "F14", "F15" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "F02", "F16" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F17", "F18", "F19" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "issues", "findingIds": [ "F03", "F20" ] }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "pass" }, { "principleId": "be-trustworthy", "expectation": "default", "status": "issues", "findingIds": [ "F21" ] }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F15", "F09", "F22" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "issues", "findingIds": [ "F23" ] }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "issues", "findingIds": [ "F24" ] } ], "paths": [ { "id": "home", "description": "Homepage: primary headline discovery, global navigation, personalization/ad surface, and site-wide performance/security evidence.", "url": "https://www.nikkansports.com/", "conditions": [ "desktop 1440x1000", "mobile 360x800", "prefers-color-scheme: dark", "prefers-reduced-motion: reduce", "keyboard focus", "raw HTML/no JavaScript comparison" ], "result": "issues" }, { "id": "category", "description": "Baseball section listing: representative section/index template.", "url": "https://www.nikkansports.com/baseball/", "conditions": [ "mobile 360x800" ], "result": "issues" }, { "id": "article", "description": "Current high-school baseball story: representative article/detail and reading journey.", "url": "https://www.nikkansports.com/baseball/highschool/news/202607200000456.html", "conditions": [ "mobile 360x800" ], "result": "issues" }, { "id": "search", "description": "Search results for 大谷: representative query/form completion path.", "url": "https://www.nikkansports.com/search/index.html?q=%E5%A4%A7%E8%B0%B7", "conditions": [ "mobile 360x800" ], "result": "issues" } ], "findings": [ { "id": "F01", "severity": "high", "confidence": "high", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "user-experience", "summary": "The site remains light-only when the user requests dark mode.", "evidence": "The dark-mode screenshot is visually unchanged from the desktop capture; computed styles report color-scheme: normal and a transparent/light surface.", "artifacts": [ "evidence/home-dark.png", "evidence/home-dom.json" ], "suggestedFix": "Declare color-scheme: light dark and retint surfaces, text, borders, and browser UI with prefers-color-scheme or light-dark().", "effort": "medium" }, { "id": "F02", "severity": "critical", "confidence": "high", "principleId": "adapt-to-the-form-factor", "principleCheckId": "responsive-no-horizontal-scroll", "guidanceId": "size-aware-styling", "guidanceCategory": "css", "summary": "Canonical pages render a fixed desktop canvas scaled down on phones.", "evidence": "At a 360x800 device viewport the layout primitive reports no viewport meta, a 980 CSS-pixel layout viewport, and scale 0.367; home, category, article, and search screenshots show tiny desktop text and controls.", "artifacts": [ "evidence/home-mobile.png", "evidence/home-layout-mobile.json", "evidence/category-mobile.png", "evidence/article-mobile.png", "evidence/search-mobile.png" ], "suggestedFix": "Add width=device-width, initial-scale=1 and rebuild templates with fluid/intrinsic layout, responsive images, and component/container queries. Do not prevent zoom.", "effort": "large" }, { "id": "F03", "severity": "high", "confidence": "high", "principleId": "maximize-content-reduce-noise", "principleCheckId": "no-intrusive-interruptions", "guidanceId": "light-dismiss-a-dialog", "guidanceCategory": "user-experience", "summary": "A sticky bottom advertising layer obscures article and listing content.", "evidence": "Desktop and mobile captures show a dark fixed layer covering the bottom portion of the viewport, with only a small close affordance at the far edge.", "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ], "suggestedFix": "Remove the load-time obstruction or reserve non-overlapping space; if transient UI is essential, use a semantic, keyboard-operable, light-dismissible primitive.", "effort": "medium" }, { "id": "F04", "severity": "medium", "confidence": "high", "principleId": "maximize-content-reduce-noise", "principleCheckId": "reduced-chrome", "guidanceId": "light-dismiss-a-dialog", "guidanceCategory": "user-experience", "summary": "Dense navigation, ads, rankings, job listings, and widgets compete with the news hierarchy.", "evidence": "The first viewport has multiple navigation rows and a busy three-column composition; 394 requests include extensive advertising and recommendation infrastructure.", "artifacts": [ "evidence/home-desktop.png", "evidence/home-summary.json" ], "suggestedFix": "Reduce secondary chrome, defer non-core modules, and establish a clear content hierarchy around headlines and article text.", "effort": "large" }, { "id": "F05", "severity": "low", "confidence": "medium", "principleId": "implement-natural-interactions", "principleCheckId": "view-transitions", "guidanceId": "same-document-transitions", "guidanceCategory": "user-experience", "summary": "Navigation and state changes use abrupt legacy swaps rather than view transitions.", "evidence": "DOM inspection found no view-transition CSS/API evidence, and routes are conventional MPA navigations with no cross-document transition declaration.", "artifacts": [ "evidence/home-dom.json", "evidence/article-dom.json" ], "suggestedFix": "Apply progressive cross-document View Transitions to article/list navigation, with reduced-motion handling and a fallback.", "effort": "medium" }, { "id": "F06", "severity": "low", "confidence": "medium", "principleId": "provide-guided-navigation", "principleCheckId": "scroll-state-aware-chrome", "guidanceId": "shrinking-header-on-scroll", "guidanceCategory": "user-experience", "summary": "Long pages provide no scroll-aware header or progress cue.", "evidence": "The page exceeds 6,000 CSS pixels, while DOM/CSS inspection and screenshots show static chrome and no scroll progress or scroll-state treatment.", "artifacts": [ "evidence/home-dom.json", "evidence/home-desktop.png" ], "suggestedFix": "For long article pages, add a restrained scroll-state-aware header or reading-progress cue without increasing chrome.", "effort": "medium" }, { "id": "F07", "severity": "high", "confidence": "high", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "performance", "guidanceCategory": "performance", "summary": "Loading and interactivity are slow.", "evidence": "Lighthouse measured LCP 4.2s, TBT 610ms, Speed Index 12.1s and time-to-interactive 32.7s; the CDP trace observed LCP 16.9s and 898ms total blocking time.", "artifacts": [ "evidence/lighthouse.json", "evidence/home-trace-summary.json" ], "suggestedFix": "Prioritise the LCP resource, delay non-critical scripts and widgets, break long tasks, and remeasure on representative templates.", "effort": "large" }, { "id": "F08", "severity": "high", "confidence": "high", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-image-priority", "guidanceCategory": "performance", "summary": "The page ships an excessive render and network dependency footprint.", "evidence": "HAR recorded 394 requests and 4.34MB transferred, including 110 scripts (2.44MB), parser-blocking legacy scripts, and missing cache headers on major resources.", "artifacts": [ "evidence/home.har", "evidence/home-summary.json" ], "suggestedFix": "Remove or defer non-critical dependencies, load scripts with appropriate async/defer semantics, improve caching, and prioritise only the LCP image.", "effort": "large" }, { "id": "F09", "severity": "high", "confidence": "high", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "break-up-long-tasks", "guidanceCategory": "performance", "summary": "Large amounts of unused CSS and JavaScript are delivered.", "evidence": "Lighthouse estimated 1,189KiB unused JavaScript and 176KiB unused CSS, while the HAR attributes 3.43MB to third parties.", "artifacts": [ "evidence/lighthouse.json", "evidence/home-summary.json" ], "suggestedFix": "Audit tag-manager and ad-tech payloads, conditionally load optional integrations, remove duplicate/legacy bundles, and split code by user-visible feature.", "effort": "large" }, { "id": "F10", "severity": "high", "confidence": "high", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "summary": "Important images and links lack accessible names.", "evidence": "Lighthouse failed image-alt and link-name; the platform probe found unnamed logo/social links and images without alt text.", "artifacts": [ "evidence/lighthouse.json", "evidence/accessibility-platform.json" ], "suggestedFix": "Give linked images meaningful alt text or aria-labels, use empty alt only for decoration, and ensure every focusable control has an accessible name.", "effort": "medium" }, { "id": "F11", "severity": "high", "confidence": "high", "principleId": "be-inclusive", "principleCheckId": "sufficient-contrast", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "summary": "Text contrast and preference-adaptive contrast are insufficient.", "evidence": "Lighthouse found white #fff text on #9fb0bc at 2.23:1, below 4.5:1; no prefers-contrast/forced-colors adaptation was found.", "artifacts": [ "evidence/lighthouse.json", "evidence/home-dom.json" ], "suggestedFix": "Raise contrast to WCAG minimums and add forced-colors/prefers-contrast treatment that preserves controls and text.", "effort": "small" }, { "id": "F12", "severity": "medium", "confidence": "high", "principleId": "be-inclusive", "principleCheckId": "structure-and-focus", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "summary": "Heading and landmark structure is inconsistent.", "evidence": "Lighthouse failed heading-order; the DOM probe found no main landmark, an empty H1, a second H1, and skipped heading levels. Focus outlines were visible, but structure remains confusing.", "artifacts": [ "evidence/lighthouse.json", "evidence/accessibility-platform.json", "evidence/focus.json" ], "suggestedFix": "Use one content H1, logical heading levels, and a main landmark while retaining the visible focus treatment.", "effort": "medium" }, { "id": "F13", "severity": "medium", "confidence": "high", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "summary": "Many controls are too small for reliable touch use.", "evidence": "The platform probe counted 199 visible interactive elements below 24px in at least one dimension; scaling the desktop layout down makes targets still harder to acquire.", "artifacts": [ "evidence/accessibility-platform.json", "evidence/home-mobile.png" ], "suggestedFix": "Use at least 24x24 CSS pixel targets (prefer 44x44 for primary touch controls), add spacing, and preserve non-hover and keyboard access.", "effort": "large" }, { "id": "F14", "severity": "high", "confidence": "high", "principleId": "follow-best-practices", "principleCheckId": "no-console-errors", "guidanceId": "performance", "guidanceCategory": "performance", "summary": "Third-party integrations generate runtime and network errors.", "evidence": "Lighthouse recorded CORS failures, failed resources, an OpenX JSON parse error, and an uncaught pa.sendEvents TypeError.", "artifacts": [ "evidence/lighthouse.json" ], "suggestedFix": "Remove failing integrations or isolate and guard them so optional ad/analytics failures do not produce uncaught exceptions.", "effort": "medium" }, { "id": "F15", "severity": "medium", "confidence": "high", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "guidanceId": "optimize-image-priority", "guidanceCategory": "performance", "summary": "Image and document asset hygiene is weak.", "evidence": "The images primitive found 18 images without dimensions, 14 oversized images, 59/59 in legacy formats, 31 below-fold images not natively lazy-loaded, and no responsive sources for 13 relevant images.", "artifacts": [ "evidence/images.json" ], "suggestedFix": "Provide dimensions/aspect-ratio, srcset/sizes and AVIF/WebP variants; use native lazy loading below the fold and correctly sized sources.", "effort": "large" }, { "id": "F16", "severity": "medium", "confidence": "high", "principleId": "be-discoverable", "principleCheckId": "canonical-and-indexing-signals", "summary": "Canonical and sitemap indexing signals are incomplete.", "evidence": "No canonical link was present on home, category, article, or search templates; /sitemap.xml returned 404. Raw HTML remained strong at 96% content coverage.", "artifacts": [ "evidence/home-dom.json", "evidence/category-dom.json", "evidence/article-dom.json", "evidence/search-dom.json", "evidence/robots-sitemap.json", "evidence/discoverability.json" ], "suggestedFix": "Emit self-referential canonical URLs for indexable templates and publish a sitemap index referenced from robots.txt.", "effort": "medium" }, { "id": "F17", "severity": "high", "confidence": "high", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "guidanceCategory": "security", "summary": "Important browser security headers and cookie protections are absent.", "evidence": "HTTPS is used, but CSP, HSTS, nosniff, Referrer-Policy and Permissions-Policy are missing; 13 of 21 observed cookies lacked Secure and many used SameSite=None.", "artifacts": [ "evidence/headers.json", "evidence/cookies.json" ], "suggestedFix": "Deploy a restrictive CSP, HSTS and nosniff; add referrer/permissions policies and mark all HTTPS cookies Secure with the narrowest SameSite/HttpOnly settings.", "effort": "medium" }, { "id": "F18", "severity": "high", "confidence": "high", "principleId": "be-private-and-secure", "principleCheckId": "data-minimisation-and-third-parties", "guidanceId": "privacy", "guidanceCategory": "privacy", "summary": "The page has an unusually large tracking and third-party footprint.", "evidence": "The tracker probe found 78 third-party origins and 16 known tracker hosts; HAR recorded 314 third-party requests and 3.43MB transferred before user interaction.", "artifacts": [ "evidence/trackers.json", "evidence/home-summary.json", "evidence/cookies.json" ], "suggestedFix": "Inventory every vendor, remove low-value trackers, obtain consent where required, batch analytics, shorten retention, and delay optional vendors until intent.", "effort": "large" }, { "id": "F19", "severity": "medium", "confidence": "medium", "principleId": "be-private-and-secure", "principleCheckId": "in-context-permissions-and-modern-auth", "guidanceId": "security", "guidanceCategory": "security", "summary": "The visible account flow exposes no evidence of phishing-resistant authentication.", "evidence": "Login/account surfaces and extensive Piano scripts are present, but DOM/source recon found no WebAuthn/passkey integration; no permission prompt fired on load.", "artifacts": [ "evidence/home-dom.json", "evidence/accessibility-platform.json" ], "suggestedFix": "Offer passkeys/WebAuthn alongside account recovery and request any browser permission only after an explanatory user action.", "effort": "large" }, { "id": "F20", "severity": "medium", "confidence": "high", "principleId": "be-resilient", "principleCheckId": "network-and-http-failure-states", "guidanceId": "forms", "guidanceCategory": "forms", "summary": "The 404 state redirects users instead of offering durable recovery.", "evidence": "/sitemap.xml returned a 404 document containing a timed AutoJump back to home, which can erase context before users inspect recovery options.", "artifacts": [ "evidence/robots-sitemap.json" ], "suggestedFix": "Keep error states stable, explain what failed, preserve the requested path, and offer explicit search, retry, back, and home actions.", "effort": "small" }, { "id": "F21", "severity": "medium", "confidence": "high", "principleId": "be-trustworthy", "principleCheckId": "trustworthy-input-assistance", "guidanceId": "forms", "guidanceCategory": "forms", "summary": "Search input assistance is incomplete.", "evidence": "The search form works, but its text input has no autocomplete token or explicit aria-label in recon; the UI relies on surrounding presentation.", "artifacts": [ "evidence/recon.json", "evidence/search-mobile.png" ], "suggestedFix": "Associate a visible label with the search field, provide a useful autocomplete/search token, and keep clear submit semantics.", "effort": "small" }, { "id": "F22", "severity": "high", "confidence": "high", "principleId": "be-sustainable", "principleCheckId": "third-party-and-media-budget", "guidanceId": "deliver-optimized-decorative-images", "guidanceCategory": "performance", "summary": "Third-party code and oversized media dominate the page budget.", "evidence": "Third parties account for 314 requests and 3.43MB; three YouTube thumbnails alone exceed 500KB, while every inspected image uses a legacy format.", "artifacts": [ "evidence/home-summary.json", "evidence/images.json" ], "suggestedFix": "Set a third-party budget, defer recommendation/ad/media modules, serve appropriately sized modern image formats, and avoid loading below-fold thumbnails before need.", "effort": "large" }, { "id": "F23", "severity": "low", "confidence": "high", "principleId": "be-agent-ready", "principleCheckId": "structured-agent-capabilities", "guidanceId": "webmcp", "guidanceCategory": "ai", "summary": "Content is server-rendered but intentionally unavailable to major AI agents and exposes no structured agent actions.", "evidence": "robots.txt disallows GPTBot, ChatGPT-User, Google-Extended, anthropic-ai and Claude-Web; recon found no WebMCP/agentic tool registration. This is an emerging opportunity, not a conventional SEO failure.", "artifacts": [ "evidence/robots-sitemap.json", "evidence/discoverability.json" ], "suggestedFix": "If agent reach is a product goal, define an explicit crawler policy and expose safe structured actions or article affordances instead of requiring scraping.", "effort": "large" }, { "id": "F24", "severity": "medium", "confidence": "medium", "principleId": "be-memory-efficient", "principleCheckId": "no-leak-under-repeated-interaction", "guidanceId": "manage-recurring-intervals", "guidanceCategory": "performance", "summary": "Repeated scrolling is associated with substantial retained heap growth.", "evidence": "The baseline heap summary reported 1,049,842 nodes and 52.9MB self size; after ten end-to-end scroll cycles the post summary reported 1,324,198 nodes and 65.4MB. Dynamic ad/feed caching may explain some growth, so leak attribution is medium confidence.", "artifacts": [ "evidence/heap-baseline.heapsnapshot", "evidence/heap-post-interaction.heapsnapshot" ], "suggestedFix": "Profile repeated scrolling in one DevTools session, identify retained nodes/listeners/timers, cap caches, tear down observers, and retest after garbage collection.", "effort": "large" } ], "taskList": [ { "id": "T01", "title": "Build genuinely responsive templates and restore readable mobile/zoom behavior", "priority": 1, "findingIds": [ "F02", "F13" ], "guidanceId": "size-aware-styling", "status": "open" }, { "id": "T02", "title": "Cut the script, tracker, ad-tech, and third-party budget", "priority": 2, "findingIds": [ "F07", "F08", "F09", "F14", "F18", "F22" ], "guidanceId": "performance", "status": "open" }, { "id": "T03", "title": "Remove the content-obscuring sticky layer and simplify page chrome", "priority": 3, "findingIds": [ "F03", "F04" ], "guidanceId": "light-dismiss-a-dialog", "status": "open" }, { "id": "T04", "title": "Fix accessible names, heading structure, contrast, and search labelling", "priority": 4, "findingIds": [ "F10", "F11", "F12", "F21" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T05", "title": "Harden headers and cookies", "priority": 5, "findingIds": [ "F17" ], "guidanceId": "security", "status": "open" }, { "id": "T06", "title": "Modernise image delivery and dimensions", "priority": 6, "findingIds": [ "F15" ], "guidanceId": "optimize-image-priority", "status": "open" }, { "id": "T07", "title": "Add canonical and sitemap signals", "priority": 7, "findingIds": [ "F16" ], "status": "open" }, { "id": "T08", "title": "Profile retained heap growth during repeated scrolling", "priority": 8, "findingIds": [ "F24" ], "guidanceId": "manage-recurring-intervals", "status": "open" }, { "id": "T09", "title": "Add dark mode and preference-aware contrast", "priority": 9, "findingIds": [ "F01" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "T10", "title": "Improve durable 404/network recovery", "priority": 10, "findingIds": [ "F20" ], "guidanceId": "forms", "status": "open" } ], "budget": { "pathCount": 4, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-20T06-05-49-342Z" }