Audit Result

UUID: 019dccc1-676e-71f6-b96e-6c9ed6b89bc4

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sumnara.jp

https://sumnara.jp/

Scanned 4 months ago

81
Fair Score
39 total checks
Passed
25
Warnings
13
Errors
1

Meta Information

  • Title Tag Warning

    Found 26 characters. Keep title between 30 and 60 characters.

    Fix: Add a unique <title> tag describing the main page intent in 30-60 characters.

  • Meta Description Warning

    Found 66 characters. Keep description around 70-160 characters.

    Fix: Add <meta name="description" content="..."> in <head> with a clear page summary.

  • Canonical URL Pass

    Canonical found: https://sumnara.jp

  • Favicon Pass

    Favicon found and reachable: /favicon.ico?favicon.0b3bf435.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 Warning

    Detected 1 heading level jumps.

    • • Skipped from h1 to h3: "スムナラ - 中古マンション検索" -> "あなたへ贈るイチオシ物件".

    Fix: Follow semantic order (h1 -> h2 -> h3) and avoid skipping heading levels.

  • Image Alt Text Error

    4 of 101 images are missing alt text.

    Fix: Add meaningful alt attributes to all informative images for accessibility and image SEO.

Technical Optimization

  • HTTPS Pass

    Page is served over HTTPS.

  • HSTS & HTTPS Redirect Warning

    2 HTTPS hardening issues detected.

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

    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 (21)
    • • age: 291
    • • cache-control: public, max-age=0, must-revalidate
    • • content-encoding: br
    • • content-type: text/html; charset=utf-8
    • • date: Mon, 27 Apr 2026 01:23:11 GMT
    • • etag: W/"vnu3ze6uodiaez"
    • • 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
    • • 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::jhqcm-1777256716691-0e2ad6adf597
    • • 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 0.53s (perceived).

  • Render Blocking Resources Warning

    10 scripts and 0 styles may block rendering.

    • • script: https://sumnara.jp/_next/static/chunks/a6dad97d9634a72d.js?dpl=dpl_6j9dycf3jDZEyJXZB39AWaKVZX61
    • • script: https://sumnara.jp/_next/static/chunks/f16287a44a03fd7d.js?dpl=dpl_6j9dycf3jDZEyJXZB39AWaKVZX61
    • • script: https://sumnara.jp/_next/static/chunks/bf3305488141c408.js?dpl=dpl_6j9dycf3jDZEyJXZB39AWaKVZX61
    • • script: https://sumnara.jp/_next/static/chunks/d42ddb5fbb5d449c.js?dpl=dpl_6j9dycf3jDZEyJXZB39AWaKVZX61
    • • script: https://sumnara.jp/_next/static/chunks/d8fedc4d0d1dccb3.js?dpl=dpl_6j9dycf3jDZEyJXZB39AWaKVZX61
    • • script: https://sumnara.jp/_next/static/chunks/887b7d8804973404.js?dpl=dpl_6j9dycf3jDZEyJXZB39AWaKVZX61
    • • script: https://sumnara.jp/_next/static/chunks/00cc794b5f7f6ee8.js?dpl=dpl_6j9dycf3jDZEyJXZB39AWaKVZX61
    • • script: https://sumnara.jp/_next/static/chunks/550a05a68b185c7a.js?dpl=dpl_6j9dycf3jDZEyJXZB39AWaKVZX61
    • • script: https://sumnara.jp/_next/static/chunks/a252863e8c944e9b.js?dpl=dpl_6j9dycf3jDZEyJXZB39AWaKVZX61
    • • script: https://sumnara.jp/_next/static/chunks/85b09fa562c99cc7.js?dpl=dpl_6j9dycf3jDZEyJXZB39AWaKVZX61

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

  • Compression Warning

    14 text resources look uncompressed.

    • • https://sumnara.jp/_next/static/chunks/d96012bcfc98706a.js?dpl=dpl_6j9dycf3jDZEyJXZB39AWaKVZX61 (application/javascript; charset=utf-8)
    • • https://sumnara.jp/auth/register?_rsc=1r34m (text/x-component)
    • • https://sumnara.jp/?_rsc=1r34m (text/x-component)
    • • https://sumnara.jp/nearby?_rsc=1r34m (text/x-component)
    • • https://sumnara.jp/diagnosis?_rsc=1r34m (text/x-component)
    • • https://sumnara.jp/mypage/preferences?_rsc=1r34m (text/x-component)
    • • https://sumnara.jp/auth/register?_rsc=4kyzk (text/x-component)
    • • https://sumnara.jp/auth/register?_rsc=w7whq (text/x-component)
    • • https://sumnara.jp/area/tokyo?_rsc=9c3q4 (text/x-component)
    • • https://sumnara.jp/area/tokyo?_rsc=1ox2z (text/x-component)
    • • https://sumnara.jp/nearby?_rsc=bsh3t (text/x-component)
    • • https://sumnara.jp/_next/static/chunks/550a05a68b185c7a.js?dpl=dpl_6j9dycf3jDZEyJXZB39AWaKVZX61 (application/javascript; charset=utf-8)
    • • https://sumnara.jp/mypage/preferences?_rsc=1wdib (text/x-component)
    • • https://sumnara.jp/_next/static/chunks/a252863e8c944e9b.js?dpl=dpl_6j9dycf3jDZEyJXZB39AWaKVZX61 (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 (エリア・駅名・マンション名で探す物件を探す) - 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 Warning

    og:image is missing.

    Fix: Add <meta property="og:image" content="https://..."> with a high-quality share image.

  • Twitter Card Pass

    twitter:card set to summary_large_image.

  • Structured Data Pass

    JSON-LD schema detected.

  • PWA Metadata Warning

    Manifest or Apple touch icon is missing.

    Fix: Link your web app manifest and apple-touch-icon for improved install/share experiences.

  • Open Graph/Twitter Quality Warning

    1 social preview quality issues detected.

    • • ISSUE: Use an absolute URL for og:image or twitter:image.
    • • 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.

    Fix: Use absolute OG/Twitter URLs, keep metadata lengths in recommended ranges, and provide a preview image near 1200x630 under 5MB.

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