監査レポート対象
tbpnickel.com
最終監査日 Jul 9, 2026
The site has significant performance issues that need urgent attention
Performance is very poor with a score of 39. The site has a large page weight and long load times. SEO is strong but lacks H1 tags and content depth. Accessibility has some issues including missing alt attributes and color contrast problems. Best practices are suboptimal with third-party cookies and no source maps. AI readiness is good with no blocking of AI crawlers.
スコアプロファイル
カテゴリー別インサイト
The site has a low performance score due to excessive JavaScript, slow LCP, and high TBT.
SEO score is high but the site lacks H1 tags and has limited content for authority building.
Accessibility score is moderate but there are missing alt attributes and color contrast issues.
Best practices score is average with issues around third-party cookies and lack of source maps.
AI crawlers are not blocked and the site has structured data which supports AI indexing.
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
なし
料金ページ
なし
メール取得
なし
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
検出された技術とツール
ソーシャルの存在感
競合と比較
改善提案
27 件の問題高Remove unused JavaScript
Est savings of 4865 KiB
高工数
Remove unused JavaScript
Est savings of 4865 KiB
修正方法
Use tools like Webpack or Rollup to analyze and remove dead code. Implement code splitting to load only necessary modules. Use tree-shaking to eliminate unused exports.
インパクト
Reduce page weight by 4.8 MB and improve load time
高Avoid multiple page redirects
Est savings of 21950 ms
中工数
Avoid multiple page redirects
Est savings of 21950 ms
修正方法
Audit all links and internal redirects. Remove unnecessary redirects and ensure canonical URLs are correctly set. Use server-side redirect configurations where needed.
インパクト
Improve user experience and reduce load time by 21.95 seconds
高Minify JavaScript
Est savings of 734 KiB
低工数
Minify JavaScript
Est savings of 734 KiB
修正方法
Use a minifier like Terser or UglifyJS to compress JavaScript files. Ensure build processes include minification as a standard step.
インパクト
Reduce JavaScript size by 734 KB
高Improve image delivery
Est savings of 207 KiB
中工数
Improve image delivery
Est savings of 207 KiB
修正方法
Convert images to next-gen formats like WebP or AVIF. Implement responsive images using srcset and sizes attributes. Use lazy loading for off-screen images.
インパクト
Reduce image payload by 207 KB
高Reduce JavaScript execution time
4.4 s
高工数
Reduce JavaScript execution time
4.4 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 scripts using async or defer attributes.
インパクト
Reduce main-thread work by 4.4 seconds
高Avoid enormous network payloads
Total size was 22709 KiB
高工数
Avoid enormous network payloads
Total size was 22709 KiB
修正方法
Audit all assets and remove or compress large files. Implement HTTP/2 and Brotli compression. Use caching strategies to reduce repeated downloads.
インパクト
Reduce total network payload by 22.7 MB
高Reduce unused CSS
Est savings of 107 KiB
中工数
Reduce unused CSS
Est savings of 107 KiB
修正方法
Use purgeCSS or similar tools to remove unused CSS. Implement critical CSS for above-the-fold content. Avoid global styles and use scoped CSS where possible.
インパクト
Reduce CSS size by 107 KB
中Add alt attributes to images
Image elements do not have [alt] attributes
低工数
Add alt attributes to images
Image elements do not have [alt] attributes
修正方法
Add descriptive alt text to all images. Ensure alt text is concise and meaningful. Use ARIA labels for decorative images if needed.
インパクト
Improve accessibility for screen readers and users with visual impairments
中Fix color contrast issues
Background and foreground colors do not have a sufficient contrast ratio
中工数
Fix color contrast issues
Background and foreground colors do not have a sufficient contrast ratio
修正方法
Use a contrast checker tool to identify problematic color combinations. Adjust text and background colors to meet WCAG AA or AAA standards. Test with screen readers and color blindness simulators.
インパクト
Improve readability and accessibility for users with visual impairments
中Implement HSTS header
No HSTS security header
低工数
Implement HSTS header
No HSTS security header
修正方法
Configure the server to send the Strict-Transport-Security header. Set the max-age to at least 180 days. Include the includeSubDomains and preload directives.
インパクト
Enhance security and prevent man-in-the-middle attacks
中Add Content-Security-Policy header
No Content-Security-Policy header
中工数
Add Content-Security-Policy header
No Content-Security-Policy header
修正方法
Configure the server to send the Content-Security-Policy header. Define safe sources for scripts, styles, and other resources. Start with a restrictive policy and gradually relax it as needed.
インパクト
Prevent cross-site scripting and other injection attacks
中Add source maps for JavaScript
Missing source maps for large first-party JavaScript
中工数
Add source maps for JavaScript
Missing source maps for large first-party JavaScript
修正方法
Generate source maps for production builds. Host them on the same domain and configure the server to serve them with the correct MIME type. Ensure sourceMappingURL comments are present in the JavaScript files.
インパクト
Improve debugging and error tracking for client-side code
中Add H1 heading
No H1 heading found
低工数
Add H1 heading
No H1 heading found
修正方法
Add a single H1 tag to the main content area. Ensure it accurately reflects the page's topic. Avoid using H1 for branding or navigation elements.
インパクト
Improve SEO and user experience by clearly defining page content
中Add blog or content section
No blog or content section found for SEO and authority
高工数
Add blog or content section
No blog or content section found for SEO and authority
修正方法
Create a blog or content section to publish regular articles. Optimize content for relevant keywords. Build backlinks through outreach and social sharing.
インパクト
Increase organic traffic and establish domain authority
詳しい改善提案を見る
メールアドレスを入力すると、このサイトの優先度付き改善提案と成長プランが表示されます。