監査レポート対象
soedja.com
最終監査日 Aug 17, 2026
Performance needs significant optimization to improve user experience and search rankings
The site has a strong SEO foundation with high scores but suffers from poor performance metrics including a slow Largest Contentful Paint and high Total Blocking Time. Several opportunities exist to reduce JavaScript bloat and improve resource loading.
スコアプロファイル
カテゴリー別インサイト
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
17 件の問題高Remove unused JavaScript
Est savings of 286 KiB
中工数
Remove unused JavaScript
Est savings of 286 KiB
修正方法
Use tools like Webpack Bundle Analyzer or Source Maps to identify and remove unused JavaScript code. Implement tree shaking to eliminate dead code.
インパクト
Reduce payload size by 286 KiB
高Optimize image delivery
Est savings of 57 KiB
低工数
Optimize image delivery
Est savings of 57 KiB
修正方法
Convert images to next-gen formats like WebP or AVIF. Use responsive image attributes such as srcset and sizes to serve appropriately sized images.
インパクト
Reduce image payload by 57 KiB
高Defer non-critical JavaScript
Minimize main-thread work of 5.7 s
中工数
Defer non-critical JavaScript
Minimize main-thread work of 5.7 s
修正方法
Identify and defer non-critical JavaScript using the async or defer attributes. Move JavaScript execution to after the page is interactive.
インパクト
Reduce main-thread work by 5.7 s
高Improve cache lifetimes
Est savings of 214 KiB
低工数
Improve cache lifetimes
Est savings of 214 KiB
修正方法
Set appropriate HTTP caching headers for static assets such as images and CSS. Use long cache lifetimes for assets that do not change frequently.
インパクト
Reduce network requests by 214 KiB
高Reduce JavaScript execution time
3.5 s
高工数
Reduce JavaScript execution time
3.5 s
修正方法
Profile JavaScript execution using Chrome DevTools. Optimize or split large functions into smaller ones. Consider lazy loading non-essential scripts.
インパクト
Reduce JavaScript execution time by 3.5 s
高Eliminate render-blocking resources
Est savings of 710 ms
中工数
Eliminate render-blocking resources
Est savings of 710 ms
修正方法
Identify and defer render-blocking CSS and JavaScript. Use asynchronous loading for non-critical resources and inline critical CSS.
インパクト
Reduce render-blocking time by 710 ms
中Preload key assets
Initial server response time was short at 30 ms
低工数
Preload key assets
Initial server response time was short at 30 ms
修正方法
Use link preload to prioritize loading of critical resources. Add <link rel="preload"> for fonts, images, and scripts that are needed early.
インパクト
Improve load time by prioritizing critical assets
中Avoid legacy JavaScript
Est savings of 68 KiB
中工数
Avoid legacy JavaScript
Est savings of 68 KiB
修正方法
Replace or update legacy JavaScript libraries. Use modern ES6+ features and modular code structures to reduce overhead.
インパクト
Reduce JavaScript payload by 68 KiB
中Reduce duplicated JavaScript
Est savings of 8 KiB
低工数
Reduce duplicated JavaScript
Est savings of 8 KiB
修正方法
Identify and remove duplicate JavaScript files. Consolidate shared code into common modules or libraries.
インパクト
Reduce JavaScript payload by 8 KiB
中Implement HTTP/2
No specific finding but performance can benefit
低工数
Implement HTTP/2
No specific finding but performance can benefit
修正方法
Ensure the site is served over HTTP/2 to enable multiplexing and reduce latency for multiple requests.
インパクト
Improve overall performance and reduce load times
高Optimize LCP element
LCP is 4876ms
高工数
Optimize LCP element
LCP is 4876ms
修正方法
Identify the LCP element and optimize its loading. Reduce the size of the element or defer non-critical content until after the LCP.
インパクト
Reduce LCP time by optimizing the largest content element
高Fix Total Blocking Time
Total Blocking Time is 232ms
高工数
Fix Total Blocking Time
Total Blocking Time is 232ms
修正方法
Profile and reduce long tasks on the main thread. Defer non-essential JavaScript and optimize rendering processes.
インパクト
Reduce Total Blocking Time by 232ms
中Enable Content-Security-Policy header
No Content-Security-Policy header
低工数
Enable Content-Security-Policy header
No Content-Security-Policy header
修正方法
Configure the server to include the Content-Security-Policy HTTP header to prevent potential security risks and improve performance.
インパクト
Enhance security and potentially improve performance
高Improve Time to Interactive
Time to Interactive is 9.0 s
高工数
Improve Time to Interactive
Time to Interactive is 9.0 s
修正方法
Optimize JavaScript execution and reduce the number of long tasks. Prioritize critical resources and use lazy loading for non-essential elements.
インパクト
Reduce Time to Interactive by optimizing JavaScript and resource loading