{ "url": "https://suumo.jp", "auditedAt": "2026-07-18T07:44:19.495Z", "mode": "report", "status": "completed", "statusDetail": "Coverage-complete audit across seven representative entry, category, account, mobile, and failure paths.", "page": { "appType": "mpa", "framework": "Server-rendered legacy multi-page application with jQuery and separate mobile URL", "notes": "Public Japanese real-estate portal. Desktop templates are fixed-width; /sp/ is a separate mobile presentation." }, "evidenceUsed": [ "screenshot", "dom", "evaluate-probe", "layout-metrics", "trace", "har", "headers", "cookies", "trackers", "images", "secrets", "discoverability", "heap-summary", "lighthouse" ], "guidanceConsulted": [ "dark-mode", "accessibility", "forms", "performance", "security", "privacy", "css", "html", "optimize-image-priority", "break-up-long-tasks", "defer-rendering-heavy-content", "fluid-scaling", "size-aware-styling", "same-document-transitions", "light-dismiss-a-dialog", "accessible-error-announcement", "validate-input-after-interaction", "passkeys", "translator", "language-detection", "coordinate-global-events", "model-partial-time-concepts", "webmcp", "agentic-forms", "agentic-javascript-tools", "language-model", "summarizer", "manage-recurring-intervals", "deprioritize-background-fetches", "efficient-background-processing", "deliver-optimized-decorative-images" ], "artifacts": [ { "type": "dom", "path": "evidence/chintai-dom.json", "caption": "chintai dom", "findingIds": [] }, { "type": "screenshot", "path": "evidence/chintai-mobile.png", "caption": "chintai mobile", "findingIds": [ "F03", "F08" ] }, { "type": "other", "path": "evidence/chintai-probe.json", "caption": "chintai probe", "findingIds": [ "F10", "F17" ] }, { "type": "other", "path": "evidence/guidance-search.json", "caption": "guidance search", "findingIds": [] }, { "type": "heap", "path": "evidence/heap-baseline.json", "caption": "heap baseline", "findingIds": [ "F33" ] }, { "type": "heap", "path": "evidence/heap-post-scroll.json", "caption": "heap post scroll", "findingIds": [] }, { "type": "other", "path": "evidence/home-cookies.json", "caption": "home cookies", "findingIds": [ "F26" ] }, { "type": "screenshot", "path": "evidence/home-dark.png", "caption": "home dark", "findingIds": [ "F01" ] }, { "type": "screenshot", "path": "evidence/home-desktop.png", "caption": "home desktop", "findingIds": [ "F04", "F07" ] }, { "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": [] }, { "type": "dom", "path": "evidence/home-dom.json", "caption": "home dom", "findingIds": [] }, { "type": "other", "path": "evidence/home-headers.json", "caption": "home headers", "findingIds": [ "F26", "F28" ] }, { "type": "screenshot", "path": "evidence/home-high-contrast.png", "caption": "home high contrast", "findingIds": [ "F02" ] }, { "type": "other", "path": "evidence/home-images.json", "caption": "home images", "findingIds": [ "F15", "F21", "F30" ] }, { "type": "layout", "path": "evidence/home-mobile-layout.json", "caption": "home mobile layout", "findingIds": [ "F08", "F18" ] }, { "type": "screenshot", "path": "evidence/home-mobile.png", "caption": "home mobile", "findingIds": [ "F07", "F08", "F09", "F18", "F29" ] }, { "type": "other", "path": "evidence/home-probe.json", "caption": "home probe", "findingIds": [ "F03", "F04", "F05", "F06", "F09", "F13", "F22", "F23", "F24", "F29" ] }, { "type": "other", "path": "evidence/home-secrets.json", "caption": "home secrets", "findingIds": [] }, { "type": "har-summary", "path": "evidence/home-summary.json", "caption": "home summary", "findingIds": [ "F13", "F14", "F27", "F31", "F32", "F33" ] }, { "type": "trace-summary", "path": "evidence/home-trace-summary.json", "caption": "home trace summary", "findingIds": [ "F11", "F12" ] }, { "type": "trace", "path": "evidence/home-trace.json", "caption": "home trace", "findingIds": [] }, { "type": "other", "path": "evidence/home-trackers.json", "caption": "home trackers", "findingIds": [ "F27", "F32" ] }, { "type": "har", "path": "evidence/home.har", "caption": "home", "findingIds": [ "F14" ] }, { "type": "lighthouse", "path": "evidence/lighthouse-home.json", "caption": "lighthouse home", "findingIds": [ "F02", "F11", "F12", "F16", "F17", "F19", "F20", "F22", "F23" ] }, { "type": "dom", "path": "evidence/login-dom.json", "caption": "login dom", "findingIds": [] }, { "type": "screenshot", "path": "evidence/login-invalid-mobile.png", "caption": "login invalid mobile", "findingIds": [] }, { "type": "other", "path": "evidence/login-invalid-probe.json", "caption": "login invalid probe", "findingIds": [] }, { "type": "screenshot", "path": "evidence/login-mobile.png", "caption": "login mobile", "findingIds": [] }, { "type": "other", "path": "evidence/login-probe.json", "caption": "login probe", "findingIds": [] }, { "type": "dom", "path": "evidence/mobile-site-dom.json", "caption": "mobile site dom", "findingIds": [] }, { "type": "screenshot", "path": "evidence/mobile-site-mobile.png", "caption": "mobile site mobile", "findingIds": [] }, { "type": "other", "path": "evidence/mobile-site-probe.json", "caption": "mobile site probe", "findingIds": [ "F19" ] }, { "type": "dom", "path": "evidence/new-mansion-dom.json", "caption": "new mansion dom", "findingIds": [] }, { "type": "screenshot", "path": "evidence/new-mansion-mobile.png", "caption": "new mansion mobile", "findingIds": [] }, { "type": "other", "path": "evidence/new-mansion-probe.json", "caption": "new mansion probe", "findingIds": [ "F10", "F15", "F24" ] }, { "type": "dom", "path": "evidence/not-found-dom.json", "caption": "not found dom", "findingIds": [] }, { "type": "screenshot", "path": "evidence/not-found-mobile.png", "caption": "not found mobile", "findingIds": [] }, { "type": "other", "path": "evidence/platform-probe.json", "caption": "platform probe", "findingIds": [ "F21", "F25" ] }, { "type": "other", "path": "evidence/preferences-probe.json", "caption": "preferences probe", "findingIds": [ "F01" ] }, { "type": "dom", "path": "evidence/region-dom.json", "caption": "region dom", "findingIds": [] }, { "type": "screenshot", "path": "evidence/region-mobile.png", "caption": "region mobile", "findingIds": [] }, { "type": "other", "path": "evidence/region-probe.json", "caption": "region probe", "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": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Emulated dark mode left body white (rgb(255,255,255)), text rgb(51,51,51), and color-scheme computed as normal.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/preferences-probe.json", "evidence/home-dark.png" ], "findingIds": [ "F01" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-reduced-motion", "status": "pass", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Under prefers-reduced-motion: reduce, getAnimations() returned no running page animations.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "respect-user-preferences", "checkId": "respects-contrast", "status": "issues", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Lighthouse failed color-contrast, and the prefers-contrast capture showed no preference-specific retinting.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-high-contrast.png" ], "findingIds": [ "F02" ] }, { "principleId": "implement-natural-interactions", "checkId": "view-transitions", "status": "issues", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "CSS inspection found no view-transition declarations; representative navigation swaps are abrupt full-document loads.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-probe.json", "evidence/chintai-mobile.png" ], "findingIds": [ "F03" ] }, { "principleId": "implement-natural-interactions", "checkId": "scroll-driven-animations", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative-path recon", "evidence": "No parallax, scrollytelling, or other scroll-linked motion was present on the representative pages.", "reason": "No parallax, scrollytelling, or other scroll-linked motion was present on the representative pages." }, { "principleId": "implement-natural-interactions", "checkId": "physical-gestures", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative-path recon", "evidence": "No gesture-driven carousel, swipe, pull-to-refresh, or comparable custom gesture was present in the audited paths.", "reason": "No gesture-driven carousel, swipe, pull-to-refresh, or comparable custom gesture was present in the audited paths." }, { "principleId": "provide-guided-navigation", "checkId": "scroll-state-aware-chrome", "status": "issues", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "The 3,796px homepage uses static chrome and exposed no scroll-state query or progress/scroll affordance.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-probe.json", "evidence/home-desktop.png" ], "findingIds": [ "F04" ] }, { "principleId": "provide-guided-navigation", "checkId": "anchored-positioning", "status": "not-applicable", "confidence": "medium", "method": "Applicability judgement from representative-path recon", "evidence": "No tooltip or edge-positioned popover was opened in the representative paths; the audited menus are page sections rather than anchored overlays.", "reason": "No tooltip or edge-positioned popover was opened in the representative paths; the audited menus are page sections rather than anchored overlays." }, { "principleId": "provide-guided-navigation", "checkId": "directs-attention", "status": "issues", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Primary product selectors use javascript:void(0) controls and abrupt content swaps without a visible focus/attention cue.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-probe.json" ], "findingIds": [ "F05" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "no-intrusive-interruptions", "status": "pass", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Initial desktop, mobile, crawler, and route screenshots showed no content-obscuring load-time interstitial.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "semantic-dismissible-primitives", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "The homepage has zero dialog, popover, or details elements while multiple menu controls are javascript:void(0), indicating ad-hoc disclosure controls.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-probe.json" ], "findingIds": [ "F06" ] }, { "principleId": "maximize-content-reduce-noise", "checkId": "reduced-chrome", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "The first viewport is densely divided into bordered panels, product selectors, ads, promos, and tiny secondary links, competing with the core search task.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ], "findingIds": [ "F07" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "responsive-no-horizontal-scroll", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "The root and major templates omit viewport meta. At a 360x800 emulation Chrome used a 980px layout viewport and scaled the fixed 950px page down, making text and targets tiny.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json", "evidence/chintai-mobile.png" ], "findingIds": [ "F08" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "component-level-responsiveness", "status": "issues", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "CSS inspection found no @container usage and the same fixed-width card/map composition is merely scaled on narrow screens.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-probe.json", "evidence/home-mobile.png" ], "findingIds": [ "F09" ] }, { "principleId": "adapt-to-the-form-factor", "checkId": "input-modality-aware", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Focused controls on home, listing, and search templates computed outline: none with no box shadow; many scaled targets are visually tiny.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/chintai-probe.json", "evidence/new-mansion-probe.json" ], "findingIds": [ "F10" ] }, { "principleId": "support-core-task-success", "checkId": "clear-purpose-and-primary-action", "status": "pass", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Homepage and category screenshots clearly identify housing search and expose rent/buy/build choices immediately.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "support-core-task-success", "checkId": "primary-flow-completion", "status": "pass", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "The homepage links reached rental, new-mansion, regional, and Recruit login paths without a dead end; the login form accepted an invalid submit and returned actionable errors.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "support-core-task-success", "checkId": "clear-system-state-and-recovery", "status": "pass", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Invalid login submission displayed explicit missing-email/password feedback, and the unknown route rendered a dedicated error page rather than a blank shell.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "be-fast-and-stable", "checkId": "good-core-web-vitals", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Lighthouse performance was 0.53 with LCP 4.6s and TBT 1,150ms; trace corroborated LCP 3.61s in a separate run.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-trace-summary.json" ], "findingIds": [ "F11" ] }, { "principleId": "be-fast-and-stable", "checkId": "visual-stability", "status": "pass", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "The mobile layout observer measured CLS 0 with no recorded shifts; all 60 inspected images had explicit dimensions.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-main-thread", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Lighthouse measured 1,150ms TBT and 400ms max potential FID; trace recorded a 136ms long task.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-trace-summary.json" ], "findingIds": [ "F12" ] }, { "principleId": "be-fast-and-stable", "checkId": "efficient-resource-delivery", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "HAR recorded 276 requests and 4.41MB transferred; confirmed parser-inserted classic scripts lacked async/defer, including jQuery 1.4.2 and site bundles.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-summary.json", "evidence/home-probe.json" ], "findingIds": [ "F13" ] }, { "principleId": "be-fast-and-stable", "checkId": "trim-unused-and-duplicate-code", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "HAR recorded 61 scripts and 3.09MB script transfer; repeated Yahoo conversion scripts and many advertising tags dominate startup.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home.har", "evidence/home-summary.json" ], "findingIds": [ "F14" ] }, { "principleId": "be-inclusive", "checkId": "names-roles-labels", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Image audit found 37 of 60 images without alt; listing probes found 22-24 missing alt images and unlabeled visible search controls.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-images.json", "evidence/new-mansion-probe.json" ], "findingIds": [ "F15" ] }, { "principleId": "be-inclusive", "checkId": "sufficient-contrast", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Lighthouse color-contrast audit failed on the homepage.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F16" ] }, { "principleId": "be-inclusive", "checkId": "structure-and-focus", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Lighthouse found non-sequential headings and no main landmark; representative controls had no visible focus outline.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/chintai-probe.json" ], "findingIds": [ "F17" ] }, { "principleId": "be-inclusive", "checkId": "legible-text", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "At 360px the fixed desktop canvas is scaled to roughly 36.7%, producing very small labels and dense multi-column copy.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json" ], "findingIds": [ "F18" ] }, { "principleId": "be-inclusive", "checkId": "zoom-reflow-targets-and-media", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Desktop templates lack viewport meta; the separate mobile page sets user-scalable=no and maximum-scale=1, explicitly preventing zoom.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/mobile-site-probe.json", "evidence/lighthouse-home.json" ], "findingIds": [ "F19" ] }, { "principleId": "follow-best-practices", "checkId": "no-console-errors", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Lighthouse reported browser errors in the console.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/lighthouse-home.json" ], "findingIds": [ "F20" ] }, { "principleId": "follow-best-practices", "checkId": "sound-document-and-assets", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Doctype and UTF-8 are valid, but image inspection found 3 images served at 10x displayed width, 24 below-fold images not lazy-loaded, and 36 legacy-format images.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-images.json", "evidence/platform-probe.json" ], "findingIds": [ "F21" ] }, { "principleId": "follow-best-practices", "checkId": "browser-platform-hygiene", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Lighthouse reported a deprecated API warning, DevTools inspector issues, a BFCache failure, and third-party-cookie problems; the page ships jQuery 1.4.2.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-probe.json" ], "findingIds": [ "F22" ] }, { "principleId": "be-discoverable", "checkId": "title-and-description", "status": "pass", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "DOM and raw HTML contain a descriptive Japanese title and meta description.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "be-discoverable", "checkId": "crawlable-and-mobile-friendly", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Lighthouse failed crawlable anchors; the homepage has javascript:void(0) navigation and no viewport meta.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-probe.json", "evidence/lighthouse-home.json" ], "findingIds": [ "F23" ] }, { "principleId": "be-discoverable", "checkId": "canonical-and-indexing-signals", "status": "issues", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Public templates returned 200 and robots permits them, but homepage/category probes found no canonical; meta robots also applies noarchive.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-probe.json", "evidence/new-mansion-probe.json" ], "findingIds": [ "F24" ] }, { "principleId": "be-discoverable", "checkId": "structured-and-shareable-metadata", "status": "issues", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Homepage probe found no Open Graph tags and no JSON-LD despite representing a major organization and search service.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/platform-probe.json" ], "findingIds": [ "F25" ] }, { "principleId": "be-private-and-secure", "checkId": "secure-transport-and-headers", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "HTTPS is used, but the main-document header probe found no CSP, HSTS, nosniff, clickjacking, referrer, or permissions policy; 29 cookies were flagged insecure and JSESSIONID was not HttpOnly.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-headers.json", "evidence/home-cookies.json" ], "findingIds": [ "F26" ] }, { "principleId": "be-private-and-secure", "checkId": "data-minimisation-and-third-parties", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Tracker probe found 34 third-party origins; HAR counted 216 third-party requests and 3.06MB, including Google, Meta, TikTok, Twitter, Yahoo, Spotify, VWO, and ad vendors.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-trackers.json", "evidence/home-summary.json" ], "findingIds": [ "F27" ] }, { "principleId": "be-private-and-secure", "checkId": "in-context-permissions-and-modern-auth", "status": "pass", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "No notification prompt appeared on load; Recruit login uses username/current-password webauthn autocomplete tokens and offers alternate sign-in paths.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "be-private-and-secure", "checkId": "defensive-browser-policies", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Header probe found no clickjacking protection, Referrer-Policy, Permissions-Policy, CSP/Trusted Types signal, or nosniff.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-headers.json" ], "findingIds": [ "F28" ] }, { "principleId": "be-resilient", "checkId": "progressive-enhancement", "status": "pass", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Discoverability fetch returned 200 with 100% rendered-word coverage in raw HTML; crawler screenshot retained the core page rather than an empty shell.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "be-resilient", "checkId": "resilient-runtime-behaviour", "status": "issues", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Ad-hoc javascript:void(0) controls and fixed desktop geometry make navigation/state behavior dependent on legacy scripts and fragile at narrow sizes.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-probe.json", "evidence/home-mobile.png" ], "findingIds": [ "F29" ] }, { "principleId": "be-resilient", "checkId": "offline-and-installable", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative-path recon", "evidence": "Property inventory and account journeys are intrinsically network-dependent; no install/offline intent was declared, so PWA installability is not required for this audit.", "reason": "Property inventory and account journeys are intrinsically network-dependent; no install/offline intent was declared, so PWA installability is not required for this audit." }, { "principleId": "be-resilient", "checkId": "network-and-http-failure-states", "status": "pass", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "An unknown route rendered a branded error document, and invalid login produced explicit recovery guidance instead of a blank or infinite state.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "be-internationalised", "checkId": "lang-dir-and-logical-properties", "status": "pass", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Representative SUUMO templates declare lang=ja and preserve Japanese reading order; no translated or RTL variant is offered to expose a contradictory dir state.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "be-internationalised", "checkId": "locale-aware-data", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative-path recon", "evidence": "Audited public entry/category pages are deliberately Japanese-only and did not expose user-entered dates, currencies, or locale switching.", "reason": "Audited public entry/category pages are deliberately Japanese-only and did not expose user-entered dates, currencies, or locale switching." }, { "principleId": "be-internationalised", "checkId": "time-zone-correctness", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative-path recon", "evidence": "No scheduling, event time, recurring interval, or cross-time-zone workflow appeared in the representative paths.", "reason": "No scheduling, event time, recurring interval, or cross-time-zone workflow appeared in the representative paths." }, { "principleId": "be-trustworthy", "checkId": "no-dark-patterns", "status": "pass", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Initial and flow screenshots showed no consent wall, confirmshaming, forced continuity, preselected paid option, or disguised primary ad.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "be-trustworthy", "checkId": "humane-error-handling", "status": "pass", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Submitting an empty login form produced specific Japanese email and password messages together, with a recovery link.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "be-trustworthy", "checkId": "trustworthy-input-assistance", "status": "pass", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Recruit login uses autocomplete=\"username webauthn\" and \"current-password webauthn\" on the corresponding fields.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "be-trustworthy", "checkId": "safe-commercial-and-account-flows", "status": "pass", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "The audited sign-in surface clearly separated existing login from new registration and exposed recovery/privacy links; no purchase commitment was entered.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "be-sustainable", "checkId": "optimised-assets", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Image audit found 3 images at 10x display width, 36 legacy-format images, 16 without srcset, and 24 below-fold images not lazy-loaded.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-images.json" ], "findingIds": [ "F30" ] }, { "principleId": "be-sustainable", "checkId": "no-wasteful-work", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "The homepage issued 276 requests, including 105 fetch/XHR calls and 61 scripts, for a mostly static portal entry page.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-summary.json" ], "findingIds": [ "F31" ] }, { "principleId": "be-sustainable", "checkId": "third-party-and-media-budget", "status": "issues", "confidence": "high", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Third parties account for 216 requests and 3.06MB of 4.41MB transferred, with Google Tag Manager alone at 2.09MB.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/home-summary.json", "evidence/home-trackers.json" ], "findingIds": [ "F32" ] }, { "principleId": "be-agent-ready", "checkId": "structured-agent-capabilities", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative-path recon", "evidence": "No declared agent-facing intent exists; WebMCP is emerging and absence is treated as an opportunity rather than a failure for this run.", "reason": "No declared agent-facing intent exists; WebMCP is emerging and absence is treated as an opportunity rather than a failure for this run." }, { "principleId": "be-agent-ready", "checkId": "on-device-inference", "status": "not-applicable", "confidence": "high", "method": "Applicability judgement from representative-path recon", "evidence": "No summarisation, generation, or language-model task appears in the audited housing-search entry flows.", "reason": "No summarisation, generation, or language-model task appears in the audited housing-search entry flows." }, { "principleId": "be-memory-efficient", "checkId": "no-leak-under-repeated-interaction", "status": "pass", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "After 10 repeated full-page scroll cycles, heap self-size rose only 193,014 bytes (0.44%) and node count 2,505 (0.32%) versus a fresh baseline, not evidence of unbounded retained growth.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] }, { "principleId": "be-memory-efficient", "checkId": "bounded-footprint", "status": "issues", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "A mostly static homepage retained 44.0MB self-size across 785,906 heap nodes before interaction, a disproportionate footprint consistent with its heavy vendor stack.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ], "artifacts": [ "evidence/heap-baseline.json", "evidence/home-summary.json" ], "findingIds": [ "F33" ] }, { "principleId": "be-memory-efficient", "checkId": "no-detached-dom-or-unbounded-listeners", "status": "pass", "confidence": "medium", "method": "Cross-path visual inspection plus targeted DOM/evaluate/CDP evidence as described", "evidence": "Baseline/post heap summaries showed only small aggregate growth and no Detached* constructor among the top retained constructors; no accumulating timer/listener symptom was observed during repeated scroll.", "pathIds": [ "home", "rental", "new-mansion", "region", "login", "mobile", "failure" ] } ], "principleOutcomes": [ { "principleId": "respect-user-preferences", "expectation": "default", "status": "issues", "findingIds": [ "F01", "F02" ] }, { "principleId": "implement-natural-interactions", "expectation": "default", "status": "issues", "findingIds": [ "F03" ] }, { "principleId": "provide-guided-navigation", "expectation": "default", "status": "issues", "findingIds": [ "F04", "F05" ] }, { "principleId": "maximize-content-reduce-noise", "expectation": "default", "status": "issues", "findingIds": [ "F06", "F07" ] }, { "principleId": "adapt-to-the-form-factor", "expectation": "default", "status": "issues", "findingIds": [ "F08", "F09", "F10" ] }, { "principleId": "support-core-task-success", "expectation": "default", "status": "pass" }, { "principleId": "be-fast-and-stable", "expectation": "default", "status": "issues", "findingIds": [ "F11", "F12", "F13", "F14" ] }, { "principleId": "be-inclusive", "expectation": "default", "status": "issues", "findingIds": [ "F15", "F16", "F17", "F18", "F19" ] }, { "principleId": "follow-best-practices", "expectation": "default", "status": "issues", "findingIds": [ "F20", "F21", "F22" ] }, { "principleId": "be-discoverable", "expectation": "default", "status": "issues", "findingIds": [ "F23", "F24", "F25" ] }, { "principleId": "be-private-and-secure", "expectation": "default", "status": "issues", "findingIds": [ "F26", "F27", "F28" ] }, { "principleId": "be-resilient", "expectation": "contextual", "status": "issues", "findingIds": [ "F29" ] }, { "principleId": "be-internationalised", "expectation": "contextual", "status": "pass" }, { "principleId": "be-trustworthy", "expectation": "default", "status": "pass" }, { "principleId": "be-sustainable", "expectation": "contextual", "status": "issues", "findingIds": [ "F30", "F31", "F32" ] }, { "principleId": "be-agent-ready", "expectation": "contextual", "status": "not-applicable", "reason": "No declared agent-facing intent exists; WebMCP is emerging and absence is treated as an opportunity rather than a failure for this run. No summarisation, generation, or language-model task appears in the audited housing-search entry flows." }, { "principleId": "be-memory-efficient", "expectation": "default", "status": "issues", "findingIds": [ "F33" ] } ], "paths": [ { "id": "home", "description": "Homepage and global navigation, representing the primary portal entry and global shell.", "url": "https://suumo.jp/", "conditions": [ "desktop", "360x800", "dark", "reduced motion", "higher contrast", "no JavaScript crawler" ], "result": "issues" }, { "id": "rental", "description": "Rental category landing page, representing listing/search entry templates.", "url": "https://suumo.jp/chintai/", "conditions": [ "360x800", "keyboard focus probe" ], "result": "issues" }, { "id": "new-mansion", "description": "New condominium search, representing search controls and purchase categories.", "url": "https://suumo.jp/ms/shinchiku/", "conditions": [ "360x800", "form semantics probe" ], "result": "issues" }, { "id": "region", "description": "Kanto regional landing, representing geographic category templates.", "url": "https://suumo.jp/kanto/", "conditions": [ "360x800" ], "result": "issues" }, { "id": "login", "description": "SUUMO to Recruit ID login, representing account/authentication and invalid-form recovery.", "url": "https://suumo.jp/jj/common/common/JJ901FK101/showLogin/", "conditions": [ "360x800", "empty submit", "keyboard focus" ], "result": "issues" }, { "id": "mobile", "description": "Separate /sp/ mobile presentation, inspected because desktop pages advertise it as their mobile alternate.", "url": "https://suumo.jp/sp/", "conditions": [ "360x800", "zoom policy" ], "result": "issues" }, { "id": "failure", "description": "Unknown route, representing HTTP/navigation failure recovery.", "url": "https://suumo.jp/this-route-does-not-exist-web-uplift", "conditions": [ "360x800" ], "result": "pass" } ], "findings": [ { "id": "F01", "pathId": "home", "url": "https://suumo.jp/", "principleId": "respect-user-preferences", "principleCheckId": "respects-color-scheme", "guidanceId": "dark-mode", "guidanceCategory": "dark-mode", "severity": "medium", "confidence": "high", "summary": "Emulated dark mode left body white (rgb(255,255,255)), text rgb(51,51,51), and color-scheme computed as normal.", "evidence": "Emulated dark mode left body white (rgb(255,255,255)), text rgb(51,51,51), and color-scheme computed as normal.", "artifacts": [ "evidence/preferences-probe.json", "evidence/home-dark.png" ], "suggestedFix": "Add color-scheme: light dark and theme semantic surface/text tokens with prefers-color-scheme or light-dark().", "effort": "medium" }, { "id": "F02", "pathId": "home", "url": "https://suumo.jp/", "principleId": "respect-user-preferences", "principleCheckId": "respects-contrast", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "medium", "summary": "Lighthouse failed color-contrast, and the prefers-contrast capture showed no preference-specific retinting.", "evidence": "Lighthouse failed color-contrast, and the prefers-contrast capture showed no preference-specific retinting.", "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-high-contrast.png" ], "suggestedFix": "Meet WCAG contrast ratios and add forced-colors/prefers-contrast adjustments for essential controls.", "effort": "medium" }, { "id": "F03", "pathId": "home", "url": "https://suumo.jp/", "principleId": "implement-natural-interactions", "principleCheckId": "view-transitions", "guidanceId": "same-document-transitions", "guidanceCategory": "same-document-transitions", "severity": "low", "confidence": "medium", "summary": "CSS inspection found no view-transition declarations.", "evidence": "CSS inspection found no view-transition declarations; representative navigation swaps are abrupt full-document loads.", "artifacts": [ "evidence/home-probe.json", "evidence/chintai-mobile.png" ], "suggestedFix": "Use cross-document View Transitions for same-origin template navigation, with reduced-motion handling.", "effort": "medium" }, { "id": "F04", "pathId": "home", "url": "https://suumo.jp/", "principleId": "provide-guided-navigation", "principleCheckId": "scroll-state-aware-chrome", "guidanceId": "css", "guidanceCategory": "css", "severity": "low", "confidence": "medium", "summary": "The 3,796px homepage uses static chrome and exposed no scroll-state query or progress/scroll affordance.", "evidence": "The 3,796px homepage uses static chrome and exposed no scroll-state query or progress/scroll affordance.", "artifacts": [ "evidence/home-probe.json", "evidence/home-desktop.png" ], "suggestedFix": "Use responsive sticky chrome or a lightweight scroll-state/progress affordance where it helps orientation.", "effort": "medium" }, { "id": "F05", "pathId": "home", "url": "https://suumo.jp/", "principleId": "provide-guided-navigation", "principleCheckId": "directs-attention", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "medium", "summary": "Primary product selectors use javascript:void(0) controls and abrupt content swaps without a visible focus/attention cue.", "evidence": "Primary product selectors use javascript:void(0) controls and abrupt content swaps without a visible focus/attention cue.", "artifacts": [ "evidence/home-probe.json" ], "suggestedFix": "Use real links or buttons, move visible focus to revealed content, and add directional transitions where useful.", "effort": "medium" }, { "id": "F06", "pathId": "home", "url": "https://suumo.jp/", "principleId": "maximize-content-reduce-noise", "principleCheckId": "semantic-dismissible-primitives", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "high", "summary": "The homepage has zero dialog, popover, or details elements while multiple menu controls are javascript:void(0), indicating ad-hoc disclosure controls.", "evidence": "The homepage has zero dialog, popover, or details elements while multiple menu controls are javascript:void(0), indicating ad-hoc disclosure controls.", "artifacts": [ "evidence/home-probe.json" ], "suggestedFix": "Use buttons plus details/popover/dialog according to modality, with declarative dismissal and focus behavior.", "effort": "medium" }, { "id": "F07", "pathId": "home", "url": "https://suumo.jp/", "principleId": "maximize-content-reduce-noise", "principleCheckId": "reduced-chrome", "guidanceId": "css", "guidanceCategory": "css", "severity": "medium", "confidence": "high", "summary": "The first viewport is densely divided into bordered panels, product selectors, ads, promos, and tiny secondary links, competing with the core search task.", "evidence": "The first viewport is densely divided into bordered panels, product selectors, ads, promos, and tiny secondary links, competing with the core search task.", "artifacts": [ "evidence/home-desktop.png", "evidence/home-mobile.png" ], "suggestedFix": "Reduce panel borders and promotional modules above the fold; establish one dominant search path.", "effort": "medium" }, { "id": "F08", "pathId": "home", "url": "https://suumo.jp/", "principleId": "adapt-to-the-form-factor", "principleCheckId": "responsive-no-horizontal-scroll", "guidanceId": "fluid-scaling", "guidanceCategory": "fluid-scaling", "severity": "high", "confidence": "high", "summary": "The root and major templates omit viewport meta.", "evidence": "The root and major templates omit viewport meta. At a 360x800 emulation Chrome used a 980px layout viewport and scaled the fixed 950px page down, making text and targets tiny.", "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json", "evidence/chintai-mobile.png" ], "suggestedFix": "Serve one responsive URL with width=device-width, fluid/intrinsic layout, and no fixed 950px desktop canvas.", "effort": "large" }, { "id": "F09", "pathId": "home", "url": "https://suumo.jp/", "principleId": "adapt-to-the-form-factor", "principleCheckId": "component-level-responsiveness", "guidanceId": "size-aware-styling", "guidanceCategory": "size-aware-styling", "severity": "medium", "confidence": "medium", "summary": "CSS inspection found no @container usage and the same fixed-width card/map composition is merely scaled on narrow screens.", "evidence": "CSS inspection found no @container usage and the same fixed-width card/map composition is merely scaled on narrow screens.", "artifacts": [ "evidence/home-probe.json", "evidence/home-mobile.png" ], "suggestedFix": "Make reusable search/cards container-aware and allow them to recompose at narrow inline sizes.", "effort": "medium" }, { "id": "F10", "pathId": "home", "url": "https://suumo.jp/", "principleId": "adapt-to-the-form-factor", "principleCheckId": "input-modality-aware", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Focused controls on home, listing, and search templates computed outline: none with no box shadow.", "evidence": "Focused controls on home, listing, and search templates computed outline: none with no box shadow; many scaled targets are visually tiny.", "artifacts": [ "evidence/chintai-probe.json", "evidence/new-mansion-probe.json" ], "suggestedFix": "Add robust :focus-visible styles and maintain at least 24x24 CSS px targets, preferably 44x44 for primary touch actions.", "effort": "large" }, { "id": "F11", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-fast-and-stable", "principleCheckId": "good-core-web-vitals", "guidanceId": "performance", "guidanceCategory": "performance", "severity": "high", "confidence": "high", "summary": "Lighthouse performance was 0.", "evidence": "Lighthouse performance was 0.53 with LCP 4.6s and TBT 1,150ms; trace corroborated LCP 3.61s in a separate run.", "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-trace-summary.json" ], "suggestedFix": "Prioritise the LCP resource, reduce third-party startup, and break/defer non-critical work.", "effort": "large" }, { "id": "F12", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-main-thread", "guidanceId": "break-up-long-tasks", "guidanceCategory": "break-up-long-tasks", "severity": "high", "confidence": "high", "summary": "Lighthouse measured 1,150ms TBT and 400ms max potential FID.", "evidence": "Lighthouse measured 1,150ms TBT and 400ms max potential FID; trace recorded a 136ms long task.", "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-trace-summary.json" ], "suggestedFix": "Defer analytics/experimentation, split long tasks, and load secondary code after interaction or idle.", "effort": "large" }, { "id": "F13", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-fast-and-stable", "principleCheckId": "efficient-resource-delivery", "guidanceId": "optimize-image-priority", "guidanceCategory": "optimize-image-priority", "severity": "high", "confidence": "high", "summary": "HAR recorded 276 requests and 4.", "evidence": "HAR recorded 276 requests and 4.41MB transferred; confirmed parser-inserted classic scripts lacked async/defer, including jQuery 1.4.2 and site bundles.", "artifacts": [ "evidence/home-summary.json", "evidence/home-probe.json" ], "suggestedFix": "Shorten critical chains, defer classic scripts, preload only the LCP asset, and apply useful caching.", "effort": "large" }, { "id": "F14", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-fast-and-stable", "principleCheckId": "trim-unused-and-duplicate-code", "guidanceId": "defer-rendering-heavy-content", "guidanceCategory": "defer-rendering-heavy-content", "severity": "high", "confidence": "high", "summary": "HAR recorded 61 scripts and 3.", "evidence": "HAR recorded 61 scripts and 3.09MB script transfer; repeated Yahoo conversion scripts and many advertising tags dominate startup.", "artifacts": [ "evidence/home.har", "evidence/home-summary.json" ], "suggestedFix": "Inventory and deduplicate tags, gate non-essential vendors, and conditionally load code after consent or use.", "effort": "large" }, { "id": "F15", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-inclusive", "principleCheckId": "names-roles-labels", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Image audit found 37 of 60 images without alt.", "evidence": "Image audit found 37 of 60 images without alt; listing probes found 22-24 missing alt images and unlabeled visible search controls.", "artifacts": [ "evidence/home-images.json", "evidence/new-mansion-probe.json" ], "suggestedFix": "Provide meaningful alt or alt=\"\" for decoration, and associate every input/select with a visible label or accessible name.", "effort": "large" }, { "id": "F16", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-inclusive", "principleCheckId": "sufficient-contrast", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "medium", "confidence": "high", "summary": "Lighthouse color-contrast audit failed on the homepage.", "evidence": "Lighthouse color-contrast audit failed on the homepage.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Adjust text and control color tokens to meet WCAG AA in all states.", "effort": "medium" }, { "id": "F17", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-inclusive", "principleCheckId": "structure-and-focus", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "Lighthouse found non-sequential headings and no main landmark.", "evidence": "Lighthouse found non-sequential headings and no main landmark; representative controls had no visible focus outline.", "artifacts": [ "evidence/lighthouse-home.json", "evidence/chintai-probe.json" ], "suggestedFix": "Add main/landmarks, repair heading order, and implement visible focus throughout the keyboard path.", "effort": "large" }, { "id": "F18", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-inclusive", "principleCheckId": "legible-text", "guidanceId": "accessibility", "guidanceCategory": "accessibility", "severity": "high", "confidence": "high", "summary": "At 360px the fixed desktop canvas is scaled to roughly 36.", "evidence": "At 360px the fixed desktop canvas is scaled to roughly 36.7%, producing very small labels and dense multi-column copy.", "artifacts": [ "evidence/home-mobile.png", "evidence/home-mobile-layout.json" ], "suggestedFix": "Use responsive type/layout without whole-page scaling and preserve readable line lengths and minimum text size.", "effort": "large" }, { "id": "F19", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-inclusive", "principleCheckId": "zoom-reflow-targets-and-media", "guidanceId": "fluid-scaling", "guidanceCategory": "fluid-scaling", "severity": "high", "confidence": "high", "summary": "Desktop templates lack viewport meta.", "evidence": "Desktop templates lack viewport meta; the separate mobile page sets user-scalable=no and maximum-scale=1, explicitly preventing zoom.", "artifacts": [ "evidence/mobile-site-probe.json", "evidence/lighthouse-home.json" ], "suggestedFix": "Allow user zoom, remove maximum-scale/user-scalable restrictions, and ensure 320 CSS px reflow.", "effort": "large" }, { "id": "F20", "pathId": "home", "url": "https://suumo.jp/", "principleId": "follow-best-practices", "principleCheckId": "no-console-errors", "guidanceId": "html", "guidanceCategory": "html", "severity": "medium", "confidence": "high", "summary": "Lighthouse reported browser errors in the console.", "evidence": "Lighthouse reported browser errors in the console.", "artifacts": [ "evidence/lighthouse-home.json" ], "suggestedFix": "Fix runtime/network exceptions and keep production console error-free.", "effort": "medium" }, { "id": "F21", "pathId": "home", "url": "https://suumo.jp/", "principleId": "follow-best-practices", "principleCheckId": "sound-document-and-assets", "guidanceId": "html", "guidanceCategory": "html", "severity": "medium", "confidence": "high", "summary": "Doctype and UTF-8 are valid, but image inspection found 3 images served at 10x displayed width, 24 below-fold images not lazy-loaded, and 36 legacy-format images.", "evidence": "Doctype and UTF-8 are valid, but image inspection found 3 images served at 10x displayed width, 24 below-fold images not lazy-loaded, and 36 legacy-format images.", "artifacts": [ "evidence/home-images.json", "evidence/platform-probe.json" ], "suggestedFix": "Keep valid metadata while adding responsive image sources, modern formats, lazy loading, and right-sized variants.", "effort": "medium" }, { "id": "F22", "pathId": "home", "url": "https://suumo.jp/", "principleId": "follow-best-practices", "principleCheckId": "browser-platform-hygiene", "guidanceId": "html", "guidanceCategory": "html", "severity": "high", "confidence": "high", "summary": "Lighthouse reported a deprecated API warning, DevTools inspector issues, a BFCache failure, and third-party-cookie problems.", "evidence": "Lighthouse reported a deprecated API warning, DevTools inspector issues, a BFCache failure, and third-party-cookie problems; the page ships jQuery 1.4.2.", "artifacts": [ "evidence/lighthouse-home.json", "evidence/home-probe.json" ], "suggestedFix": "Remove deprecated APIs and BFCache blockers, address inspector issues, and retire stale dependencies.", "effort": "large" }, { "id": "F23", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-discoverable", "principleCheckId": "crawlable-and-mobile-friendly", "guidanceId": "html", "guidanceCategory": "html", "severity": "high", "confidence": "high", "summary": "Lighthouse failed crawlable anchors.", "evidence": "Lighthouse failed crawlable anchors; the homepage has javascript:void(0) navigation and no viewport meta.", "artifacts": [ "evidence/home-probe.json", "evidence/lighthouse-home.json" ], "suggestedFix": "Use real href links for navigation and add a correct responsive viewport declaration.", "effort": "large" }, { "id": "F24", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-discoverable", "principleCheckId": "canonical-and-indexing-signals", "guidanceId": "html", "guidanceCategory": "html", "severity": "medium", "confidence": "medium", "summary": "Public templates returned 200 and robots permits them, but homepage/category probes found no canonical.", "evidence": "Public templates returned 200 and robots permits them, but homepage/category probes found no canonical; meta robots also applies noarchive.", "artifacts": [ "evidence/home-probe.json", "evidence/new-mansion-probe.json" ], "suggestedFix": "Add self-consistent canonical URLs and review whether noarchive is intentional; align sitemap/robots signals.", "effort": "medium" }, { "id": "F25", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-discoverable", "principleCheckId": "structured-and-shareable-metadata", "guidanceId": "html", "guidanceCategory": "html", "severity": "medium", "confidence": "medium", "summary": "Homepage probe found no Open Graph tags and no JSON-LD despite representing a major organization and search service.", "evidence": "Homepage probe found no Open Graph tags and no JSON-LD despite representing a major organization and search service.", "artifacts": [ "evidence/platform-probe.json" ], "suggestedFix": "Add accurate Organization/WebSite JSON-LD and Open Graph/Twitter preview metadata.", "effort": "medium" }, { "id": "F26", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-private-and-secure", "principleCheckId": "secure-transport-and-headers", "guidanceId": "security", "guidanceCategory": "security", "severity": "high", "confidence": "high", "summary": "HTTPS is used, but the main-document header probe found no CSP, HSTS, nosniff, clickjacking, referrer, or permissions policy.", "evidence": "HTTPS is used, but the main-document header probe found no CSP, HSTS, nosniff, clickjacking, referrer, or permissions policy; 29 cookies were flagged insecure and JSESSIONID was not HttpOnly.", "artifacts": [ "evidence/home-headers.json", "evidence/home-cookies.json" ], "suggestedFix": "Deploy CSP in report-only then enforce it; add HSTS/nosniff and secure, HttpOnly, appropriately SameSite cookies.", "effort": "large" }, { "id": "F27", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-private-and-secure", "principleCheckId": "data-minimisation-and-third-parties", "guidanceId": "privacy", "guidanceCategory": "privacy", "severity": "high", "confidence": "high", "summary": "Tracker probe found 34 third-party origins.", "evidence": "Tracker probe found 34 third-party origins; HAR counted 216 third-party requests and 3.06MB, including Google, Meta, TikTok, Twitter, Yahoo, Spotify, VWO, and ad vendors.", "artifacts": [ "evidence/home-trackers.json", "evidence/home-summary.json" ], "suggestedFix": "Audit vendor necessity, obtain meaningful consent, minimise event collection, and delay/batch non-essential analytics.", "effort": "large" }, { "id": "F28", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-private-and-secure", "principleCheckId": "defensive-browser-policies", "guidanceId": "security", "guidanceCategory": "security", "severity": "high", "confidence": "high", "summary": "Header probe found no clickjacking protection, Referrer-Policy, Permissions-Policy, CSP/Trusted Types signal, or nosniff.", "evidence": "Header probe found no clickjacking protection, Referrer-Policy, Permissions-Policy, CSP/Trusted Types signal, or nosniff.", "artifacts": [ "evidence/home-headers.json" ], "suggestedFix": "Set frame-ancestors (or X-Frame-Options), Referrer-Policy, Permissions-Policy, nosniff, and strengthen XSS defenses.", "effort": "large" }, { "id": "F29", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-resilient", "principleCheckId": "resilient-runtime-behaviour", "guidanceId": "html", "guidanceCategory": "html", "severity": "medium", "confidence": "medium", "summary": "Ad-hoc javascript:void(0) controls and fixed desktop geometry make navigation/state behavior dependent on legacy scripts and fragile at narrow sizes.", "evidence": "Ad-hoc javascript:void(0) controls and fixed desktop geometry make navigation/state behavior dependent on legacy scripts and fragile at narrow sizes.", "artifacts": [ "evidence/home-probe.json", "evidence/home-mobile.png" ], "suggestedFix": "Progressively enhance real links/buttons and use native disclosure/overlay primitives with responsive geometry.", "effort": "medium" }, { "id": "F30", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-sustainable", "principleCheckId": "optimised-assets", "guidanceId": "deliver-optimized-decorative-images", "guidanceCategory": "deliver-optimized-decorative-images", "severity": "high", "confidence": "high", "summary": "Image audit found 3 images at 10x display width, 36 legacy-format images, 16 without srcset, and 24 below-fold images not lazy-loaded.", "evidence": "Image audit found 3 images at 10x display width, 36 legacy-format images, 16 without srcset, and 24 below-fold images not lazy-loaded.", "artifacts": [ "evidence/home-images.json" ], "suggestedFix": "Generate AVIF/WebP responsive variants, use srcset/sizes, and lazy-load below-fold imagery.", "effort": "large" }, { "id": "F31", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-sustainable", "principleCheckId": "no-wasteful-work", "guidanceId": "deprioritize-background-fetches", "guidanceCategory": "deprioritize-background-fetches", "severity": "high", "confidence": "high", "summary": "The homepage issued 276 requests, including 105 fetch/XHR calls and 61 scripts, for a mostly static portal entry page.", "evidence": "The homepage issued 276 requests, including 105 fetch/XHR calls and 61 scripts, for a mostly static portal entry page.", "artifacts": [ "evidence/home-summary.json" ], "suggestedFix": "Eliminate redundant beacons and defer or batch background fetches until consent/interaction.", "effort": "large" }, { "id": "F32", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-sustainable", "principleCheckId": "third-party-and-media-budget", "guidanceId": "efficient-background-processing", "guidanceCategory": "efficient-background-processing", "severity": "high", "confidence": "high", "summary": "Third parties account for 216 requests and 3.", "evidence": "Third parties account for 216 requests and 3.06MB of 4.41MB transferred, with Google Tag Manager alone at 2.09MB.", "artifacts": [ "evidence/home-summary.json", "evidence/home-trackers.json" ], "suggestedFix": "Set a third-party byte/request budget and remove or conditionally load vendors that do not serve the current task.", "effort": "large" }, { "id": "F33", "pathId": "home", "url": "https://suumo.jp/", "principleId": "be-memory-efficient", "principleCheckId": "bounded-footprint", "guidanceId": "performance", "guidanceCategory": "performance", "severity": "medium", "confidence": "medium", "summary": "A mostly static homepage retained 44.", "evidence": "A mostly static homepage retained 44.0MB self-size across 785,906 heap nodes before interaction, a disproportionate footprint consistent with its heavy vendor stack.", "artifacts": [ "evidence/heap-baseline.json", "evidence/home-summary.json" ], "suggestedFix": "Reduce vendor scripts and duplicated tags, then establish heap/node budgets for the entry page.", "effort": "medium" } ], "taskList": [ { "id": "T1", "title": "Responsive, zoomable, container-aware templates", "priority": 1, "findingIds": [ "F08", "F09", "F10", "F15", "F16", "F17", "F18", "F19" ], "guidanceId": "fluid-scaling", "status": "open" }, { "id": "T2", "title": "Cut third-party JavaScript and tracking", "priority": 2, "findingIds": [ "F11", "F12", "F13", "F14", "F26", "F27", "F28", "F30", "F31", "F32", "F33" ], "guidanceId": "deprioritize-background-fetches", "status": "open" }, { "id": "T3", "title": "Restore semantics, labels, landmarks, contrast, and focus", "priority": 3, "findingIds": [ "F04", "F05", "F06", "F07", "F15", "F16", "F17", "F18", "F19" ], "guidanceId": "accessibility", "status": "open" }, { "id": "T4", "title": "Harden headers and cookies", "priority": 4, "findingIds": [ "F26", "F27", "F28" ], "guidanceId": "security", "status": "open" }, { "id": "T5", "title": "Modernise images and critical resource delivery", "priority": 5, "findingIds": [ "F11", "F12", "F13", "F14", "F20", "F21", "F22", "F30", "F31", "F32" ], "guidanceId": "optimize-image-priority", "status": "open" }, { "id": "T6", "title": "Repair crawlable navigation and metadata", "priority": 6, "findingIds": [ "F23", "F24", "F25" ], "guidanceId": "html", "status": "open" }, { "id": "T7", "title": "Use preference-aware and modern interaction styling", "priority": 7, "findingIds": [ "F01", "F02", "F03" ], "guidanceId": "dark-mode", "status": "open" }, { "id": "T8", "title": "Remove legacy runtime errors and fragile controls", "priority": 8, "findingIds": [ "F20", "F21", "F22", "F29" ], "guidanceId": "html", "status": "open" }, { "id": "T9", "title": "Reduce above-the-fold visual noise", "priority": 9, "findingIds": [ "F04", "F05", "F06", "F07" ], "guidanceId": "css", "status": "open" } ], "budget": { "wallClockSeconds": 1100, "pathCount": 7, "auditPasses": 1 }, "agent": "pi", "runId": "2026-07-18T07-44-19-495Z" }