404-page
無料Use when reviewing templates, rendered HTML, or shared components related to Create a custom 404 error page. Validate the final browser-facing markup, not just the source framework abstraction.
日本語の概要は準備中です。原文の説明を表示しています。
Use when auditing internal link structure after a URL migration, domain change, or site rebuild. Applies to any site that has had redirects in place for more than a month.
インストールする前に、エージェントに与えられる指示の中身を確認できます。
Internal links that point to redirect URLs add latency, waste crawl budget, and pass less PageRank to the destination than a direct link would—reducing the ranking potential of linked pages.
Crawl internal links across the site. For each <a href='...'> tag, follow the URL and check the HTTP response code. Flag any internal link that resolves to a 301 or 302 redirect rather than a direct 200 response. Report the source page, linked URL, and the final destination URL after following the redirect.
For each internal link pointing to a redirect URL: update the href attribute to point directly to the final destination URL (the 200-status URL after following all redirects). Keep the redirect in place for external links, but update all internal links to point directly to the canonical-url destination.
When Googlebot follows a link to a URL that then redirects to another URL, PageRank is partially lost at each hop. Google has stated that redirects dilute PageRank. Additionally, linking to redirect URLs wastes crawl budget since Googlebot must make multiple requests to reach the final content. Updating internal links to point directly to destination URLs passes full PageRank and improves crawl efficiency.
For each internal <a href='...'> link, follow the URL and check the HTTP response code. If the response is 301 or 302, record the Location header and continue following. Report all internal links that resolve via one or more redirects before reaching a 200 response. Include: source page, link href, each redirect URL in the chain, and final destination URL.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/rules/seo/redirect-chains
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概要と使いどころ
Use when reviewing templates, rendered HTML, or shared components related to Create a custom 404 error page. Validate the final browser-facing markup, not just the source framework abstraction.
日本語の概要は準備中です。原文の説明を表示しています。
Use when auditing metadata, crawlability, structured data, or indexability related to Create a dedicated About page. Verify the rendered HTML and HTTP response rather than relying only on source files.
日本語の概要は準備中です。原文の説明を表示しています。
Use when reviewing component libraries, page flows, or CI pipelines that need repeatable accessibility checks. Automated testing is strongest at catching structural and attribute-level issues; it does not replace keyboard, screen reader, and manual UX testing.
日本語の概要は準備中です。原文の説明を表示しています。
Use when reviewing sign-in, sign-up, MFA, CAPTCHA, recovery, and re-auth flows. Evaluate the full authentication path, including error handling and backup methods, not just the primary login form.
日本語の概要は準備中です。原文の説明を表示しています。
Use when reviewing templates, rendered HTML, or shared components related to Make notifications accessible. Validate the final browser-facing markup, not just the source framework abstraction.
日本語の概要は準備中です。原文の説明を表示しています。
Use when reviewing rendered HTML, interactive components, or design-system patterns related to Use semantic table markup for screen readers. Check native semantics first, then inspect keyboard behavior, focus flow, accessible names, and screen-reader output where relevant.
日本語の概要は準備中です。原文の説明を表示しています。