Audit Result

UUID: 019e243b-de19-7147-9534-4f88a698b7c3

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sumnara.jp

https://sumnara.jp/

Scanned 3 months ago

90
Excellent Score
39 total checks
Passed
31
Warnings
8
Errors
0

Meta Information

  • Title Tag Pass

    Found 35 characters. Length is optimal.

  • Meta Description Pass

    Found 73 characters. Good snippet length.

  • Canonical URL Pass

    Canonical found: https://sumnara.jp

  • Favicon Pass

    Favicon found and reachable: /favicon.ico?favicon.0x3dzn~oxb6tn.ico (HTTP 200).

    Favicon
  • Viewport Meta Pass

    Viewport configured: width=device-width, initial-scale=1, viewport-fit=cover, interactive-widget=resizes-content

  • HTML Lang Pass

    Language declared as "ja".

Content Structure

  • H1 Tag Pass

    Exactly one H1 found: "スムナラ - 中古マンション検索".

  • Heading Hierarchy Pass

    Valid heading flow across 20 headings.

  • Image Alt Text Pass

    All 101 images include alt text.

Technical Optimization

  • HTTPS Pass

    Page is served over HTTPS.

  • HSTS & HTTPS Redirect Warning

    1 HTTPS hardening issues detected.

    • • Could not probe the HTTP version of this page.
    • • Strict-Transport-Security: max-age=63072000; includeSubDomains; preload

    Fix: Set Strict-Transport-Security with a long max-age, add includeSubDomains, and redirect all HTTP requests to HTTPS.

  • Security Headers Warning

    Missing: content-security-policy.

    Full HTTP headers (22)
    • • age: 247
    • • cache-control: public, max-age=0, must-revalidate
    • • content-encoding: br
    • • content-security-policy-report-only: default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://www.googletagmanager.com https://www.google-analytics.com https://*.clarity.ms https://maps.googleapis.com https://maps.gstatic.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; img-src 'self' data: blob: https:; font-src 'self' data: https://fonts.gstatic.com; connect-src 'self' https://*.googleapis.com https://*.google-analytics.com https://*.clarity.ms https://*.vercel-storage.com https://search.sumnara.jp https://journal.sumnara.jp https://vitals.vercel-insights.com; frame-src 'self' https://www.googletagmanager.com; object-src 'none'; base-uri 'self'; form-action 'self'
    • • content-type: text/html; charset=utf-8
    • • date: Thu, 14 May 2026 01:38:07 GMT
    • • etag: W/"3vsooy3p86mdyx"
    • • link: </.well-known/api-catalog>; rel="api-catalog", </llms.txt>; rel="describedby"
    • • permissions-policy: camera=(), microphone=(), geolocation=*
    • • referrer-policy: strict-origin-when-cross-origin
    • • server: Vercel
    • • strict-transport-security: max-age=63072000; includeSubDomains; preload
    • • vary: rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch
    • • x-content-type-options: nosniff
    • • x-frame-options: SAMEORIGIN
    • • x-matched-path: /
    • • x-nextjs-prerender: 1
    • • x-nextjs-stale-time: 300
    • • x-powered-by: Next.js
    • • x-vercel-cache: HIT
    • • x-vercel-id: iad1::iad1::xgljg-1778724357582-d9ef1bc84531
    • • x-xss-protection: 1; mode=block

    Fix: Add the missing security headers at your reverse proxy or application layer.

  • CSP Quality Warning

    Content-Security-Policy header is missing.

    • • Missing Content-Security-Policy header.

    Fix: Define a restrictive Content-Security-Policy and avoid unsafe directives such as unsafe-inline and unsafe-eval.

  • Cookie Security Pass

    No first-party cookies were set during the initial page load.

  • Server Version Disclosure Pass

    Server response headers do not expose version tokens.

  • Cloudflare Proxy Warning

    Domain does not appear to be behind Cloudflare.

  • Perceived Load Time Pass

    Loaded in 0.75s (perceived).

  • Render Blocking Resources Warning

    10 scripts and 0 styles may block rendering.

    • • script: https://sumnara.jp/_next/static/chunks/03~yq9q893hmn.js?dpl=dpl_FeYSoLQRBUAnkYhEdgNtgwrPtXKV
    • • script: https://sumnara.jp/_next/static/chunks/0rgwm2elvgkej.js?dpl=dpl_FeYSoLQRBUAnkYhEdgNtgwrPtXKV
    • • script: https://sumnara.jp/_next/static/chunks/0fvbz2exm2jfx.js?dpl=dpl_FeYSoLQRBUAnkYhEdgNtgwrPtXKV
    • • script: https://sumnara.jp/_next/static/chunks/17xq76aqaa.bp.js?dpl=dpl_FeYSoLQRBUAnkYhEdgNtgwrPtXKV
    • • script: https://sumnara.jp/_next/static/chunks/10tnju_ann0p2.js?dpl=dpl_FeYSoLQRBUAnkYhEdgNtgwrPtXKV
    • • script: https://sumnara.jp/_next/static/chunks/09ox3gt~8g_p4.js?dpl=dpl_FeYSoLQRBUAnkYhEdgNtgwrPtXKV
    • • script: https://sumnara.jp/_next/static/chunks/0vk76xe5mjn0f.js?dpl=dpl_FeYSoLQRBUAnkYhEdgNtgwrPtXKV
    • • script: https://sumnara.jp/_next/static/chunks/0kiuau34-7~ol.js?dpl=dpl_FeYSoLQRBUAnkYhEdgNtgwrPtXKV
    • • script: https://sumnara.jp/_next/static/chunks/06hfzzpuq8szj.js?dpl=dpl_FeYSoLQRBUAnkYhEdgNtgwrPtXKV
    • • script: https://sumnara.jp/_next/static/chunks/04qtqxkq6b409.js?dpl=dpl_FeYSoLQRBUAnkYhEdgNtgwrPtXKV

    Fix: Defer non-critical scripts and inline critical CSS to improve first paint speed.

  • Compression Warning

    12 text resources look uncompressed.

    • • https://sumnara.jp/auth/register?_rsc=5CB68i4pnAekjehf (text/x-component)
    • • https://sumnara.jp/nearby?_rsc=5CB68i4pnAekjehf (text/x-component)
    • • https://sumnara.jp/mypage/preferences?_rsc=5CB68i4pnAekjehf (text/x-component)
    • • https://sumnara.jp/diagnosis?_rsc=5CB68i4pnAekjehf (text/x-component)
    • • https://sumnara.jp/auth/register?_rsc=CwuXfvnpKM9EY0iT (text/x-component)
    • • https://sumnara.jp/auth/register?_rsc=JL6A1UNiNIIRV88n (text/x-component)
    • • https://sumnara.jp/area/tokyo?_rsc=UncuAljegGcHPlf3 (text/x-component)
    • • https://sumnara.jp/area/tokyo?_rsc=USZct1hsMx93sMGq (text/x-component)
    • • https://sumnara.jp/nearby?_rsc=DShktBWoh2DJGGO7 (text/x-component)
    • • https://sumnara.jp/_next/static/chunks/09ox3gt~8g_p4.js?dpl=dpl_FeYSoLQRBUAnkYhEdgNtgwrPtXKV (application/javascript; charset=utf-8)
    • • https://sumnara.jp/mypage/preferences?_rsc=hZAAaFWlmuMgQVVf (text/x-component)
    • • https://sumnara.jp/_next/static/chunks/06hfzzpuq8szj.js?dpl=dpl_FeYSoLQRBUAnkYhEdgNtgwrPtXKV (application/javascript; charset=utf-8)

    Fix: Enable Brotli or Gzip compression for HTML, CSS, JS, and JSON responses.

  • Robots.txt Pass

    Found robots.txt (200).

  • Sitemap File Pass

    Found sitemap (200) at https://sumnara.jp/sitemap.xml.

  • Crawl Directives Pass

    Robots meta found: index, follow

Accessibility Basics

  • Form Labels Pass

    All 0 controls are labeled.

  • Landmarks Pass

    Header, nav, main, and footer landmarks are present.

  • Tap Target Size Warning

    25 interactive elements appear smaller than 48px.

    • • a.flex.items-center - 36x36px
    • • button.flex.items-center (物件を検索) - 1104x40px
    • • button.inline-flex.items-center (メニュー) - 36x36px
    • • a.flex.shrink-0 (ログイン) - 36x36px
    • • a.flex.items-center (東京の中古マンション) - 200x28px
    • • a.text-sm.text-primary (すべて見る) - 88x20px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • a.flex.items-center (神奈川の中古マンション) - 218x28px
    • • a.text-sm.text-primary (すべて見る) - 88x20px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • a.flex.items-center (埼玉の中古マンション) - 200x28px
    • • a.text-sm.text-primary (すべて見る) - 88x20px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px
    • • button.rounded-full.bg-white/90 (お気に入りに追加) - 36x36px

    Fix: Increase target size to at least 48x48 CSS pixels for touch interactions.

Social & Rich Results

  • Open Graph Basics Pass

    Core Open Graph tags are present.

  • Open Graph Image Pass

    og:image is present and absolute.

    Open Graph Image
  • Twitter Card Pass

    twitter:card set to summary_large_image.

  • Structured Data Pass

    JSON-LD schema detected.

  • PWA Metadata Pass

    Manifest and Apple touch icon are configured.

  • Open Graph/Twitter Quality Pass

    Social preview metadata and image quality look good for Open Graph/Twitter.

    • • GUIDELINE: Optimal og:title length: 40-60 characters (acceptable: 10-70).
    • • GUIDELINE: Optimal og:description length: 110-160 characters (acceptable: 50-200).
    • • GUIDELINE: Optimal preview image size: 1200x630 pixels.
    • • GUIDELINE: Optimal preview image aspect ratio: 1.91:1.
    • • GUIDELINE: Optimal preview image file size: under 5 MB.
    • • GUIDELINE: Recommended twitter:card: summary_large_image.
    • • MEASURED: Image size: 0.07 MB
    • • MEASURED: Image dimensions: 1200x630

Links Analysis

  • Internal Links Pass

    Checked 80 links. No broken internal links found.

  • External Links Pass

    No broken external links found in checked URLs.

  • Link Format Pass

    All 138 links use non-empty href values.

Performance & Runtime

  • Core Web Vitals: LCP Pass

    Largest Contentful Paint: 1.19s.

  • Core Web Vitals: CLS Pass

    Cumulative Layout Shift: 0.052.

  • Main Thread Blocking (TBT) Pass

    Total Blocking Time estimate: 77ms.

  • Broken Assets Pass

    No failed CSS/JS/image/font/media requests detected.

  • JavaScript Runtime Errors Warning

    1 JavaScript runtime issues detected.

    • • Request failed: https://sumnara.jp/estate?prefecture=%E6%9D%B1%E4%BA%AC%E9%83%BD&_rsc=tXyZJ52UQVBCVsD3 (net::ERR_ABORTED, type: fetch)

    Fix: Fix JS files returning 404/failed requests and resolve the listed runtime exceptions.