監査レポート対象
soedja.com
最終監査日 Jul 3, 2026
Performance needs significant improvement to meet modern standards
The site has a performance score of 45 and several critical issues including slow Largest Contentful Paint and high Total Blocking Time. SEO and accessibility scores are strong but could be further optimized. AI readiness is good with no blocking issues for crawlers.
スコアプロファイル
カテゴリー別インサイト
Largest Contentful Paint is slow at 4801ms and Total Blocking Time is high at 2737ms. Several opportunities exist to reduce JavaScript execution time and eliminate render-blocking requests.
SEO score is 92 with only one link lacking descriptive text. No other critical SEO issues were found.
Several accessibility issues were identified including insufficient color contrast, improper heading order, and missing alt text for SVG elements.
Best Practices score is 100 with no critical issues reported.
All major AI crawlers are allowed and no technical barriers were found.
パフォーマンス指標
マーケティング対応度
ウェブ解析
あり
広告ピクセル
あり
ライブチャット
なし
ブログ・コンテンツ
あり
料金ページ
なし
メール取得
あり
AIクローラーのアクセス
ChatGPT
許可
Claude
許可
Perplexity
許可
Gemini
許可
Common Crawl
許可
llms.txt
あり
構造化データ
あり
Instagram競合と比較
改善提案
18 件の問題高Reduce unused JavaScript
Est savings of 270 KiB
中工数
Reduce unused JavaScript
Est savings of 270 KiB
修正方法
Use tree-shaking techniques to remove unused code. Analyze the bundle with Webpack or Vite to identify and eliminate dead code. Implement code splitting to load only necessary modules on demand.
インパクト
Reduce initial load size by 270 KiB
高Improve image delivery
Est savings of 113 KiB
中工数
Improve image delivery
Est savings of 113 KiB
修正方法
Convert images to next-gen formats like WebP or AVIF. Use responsive images with srcset and sizes attributes. Implement lazy loading for off-screen images.
インパクト
Reduce image payload by 113 KiB
高Reduce JavaScript execution time
11.0 s
高工数
Reduce JavaScript execution time
11.0 s
修正方法
Identify and optimize long-running tasks on the main thread. Use Web Workers for CPU-intensive operations. Defer non-critical JavaScript and use async or defer attributes where appropriate.
インパクト
Reduce main-thread work by 11 seconds
高Minimize main-thread work
14.7 s
高工数
Minimize main-thread work
14.7 s
修正方法
Profile the application using Chrome DevTools to identify long tasks. Optimize rendering logic and reduce layout thrashing. Use requestIdleCallback for non-urgent work.
インパクト
Reduce main-thread work by 14.7 seconds
高Eliminate render-blocking requests
Est savings of 800 ms
中工数
Eliminate render-blocking requests
Est savings of 800 ms
修正方法
Defer non-critical CSS and JavaScript. Use asynchronous loading for scripts. Implement resource hints like preconnect and prefetch for external resources.
インパクト
Reduce render-blocking time by 800 ms
中Use efficient cache lifetimes
Est savings of 261 KiB
低工数
Use efficient cache lifetimes
Est savings of 261 KiB
修正方法
Configure HTTP caching headers for static assets. Set long cache durations for files that do not change frequently. Use Cache-Control and ETag headers to enable browser and CDN caching.
インパクト
Reduce redundant downloads by 261 KiB
中Fix color contrast ratio
Background and foreground colors do not have a sufficient contrast ratio
低工数
Fix color contrast ratio
Background and foreground colors do not have a sufficient contrast ratio
修正方法
Use tools like Contrast Checker to identify low-contrast text. Adjust color values to meet WCAG AA or AAA standards. Ensure all text is readable against its background.
インパクト
Improve accessibility for visually impaired users
中Ensure proper heading order
Heading elements are not in a sequentially-descending order
低工数
Ensure proper heading order
Heading elements are not in a sequentially-descending order
修正方法
Review the HTML structure and ensure headings follow a logical hierarchy. Use h1 through h6 in order without skipping levels. Add ARIA roles where necessary for screen readers.
インパクト
Improve navigation for screen reader users
中Add accessible text alternatives for SVGs
SVG elements with an `img` role do not have an accessible text alternative
低工数
Add accessible text alternatives for SVGs
SVG elements with an `img` role do not have an accessible text alternative
修正方法
Add aria-label or aria-labelledby attributes to SVG elements used as images. Provide descriptive text for screen readers to convey the purpose of the image.
インパクト
Improve accessibility for users relying on screen readers
中Remove duplicated JavaScript
Est savings of 7 KiB
中工数
Remove duplicated JavaScript
Est savings of 7 KiB
修正方法
Analyze the JavaScript bundle for duplicate code. Use module bundlers like Webpack to deduplicate imports. Refactor shared code into common modules.
インパクト
Reduce JavaScript size by 7 KiB
中Optimize legacy JavaScript
Est savings of 69 KiB
中工数
Optimize legacy JavaScript
Est savings of 69 KiB
修正方法
Replace outdated JavaScript patterns with modern equivalents. Update libraries to their latest versions. Remove deprecated code and replace it with efficient alternatives.
インパクト
Reduce JavaScript size by 69 KiB
中Preload critical resources
Initial server response time was short at 160 ms
低工数
Preload critical resources
Initial server response time was short at 160 ms
修正方法
Use <link rel="preload"> to prioritize loading of critical assets such as fonts, images, and scripts. Implement resource hints to guide the browser on which resources to load first.
インパクト
Improve perceived performance and reduce load time
中Implement HTTP/2 or HTTP/3
No specific issue identified but can improve performance
中工数
Implement HTTP/2 or HTTP/3
No specific issue identified but can improve performance
修正方法
Ensure the server supports HTTP/2 or HTTP/3. This reduces latency and improves the speed of asset delivery across multiple requests.
インパクト
Reduce network latency and improve load times
高Optimize LCP timing
Largest Contentful Paint is slow at 4801ms
高工数
Optimize LCP timing
Largest Contentful Paint is slow at 4801ms
修正方法
Identify the largest content element and optimize its loading. Lazy load non-critical content. Reduce the size of large images and prioritize critical rendering path.
インパクト
Reduce LCP time by up to 4.8 seconds
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