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規範標籤檢查工具

查找任意頁面宣告的規範URL,並檢查它是否指向自身。

如何使用本工具

  1. 1

    Enter a domain or URL (for example example.com or https://example.com) in the input field.

  2. 2

    Submit to fetch the page server-side over HTTPS, falling back to HTTP if needed.

  3. 3

    Read the results: the requested URL, the declared canonical, og:url, and the robots meta value.

  4. 4

    Check the match indicator to confirm whether the canonical equals the fetched URL or differs.

什麼是規範標籤檢查工具?

規範標籤(<link rel='canonical' href='...'>)告訴搜尋引擎,當同一內容可透過多個URL存取時,哪個才是URL的首選版本。設定錯誤的規範標籤是導致神秘性脫離索引的主要原因之一。本工具會抓取一個頁面,並準確顯示它所宣告的規範標籤:既可用於核實你自己的設定,也可用於稽核競爭對手的設定。

常見使用場景

  • Confirming your home page canonicalizes to your preferred https, www-or-not version after a migration.

  • Diagnosing why a freshly launched site stopped appearing in Google by checking its root canonical and robots value.

  • Spot-checking whether a CMS or theme injected a hard-coded canonical pointing at a staging or template domain.

  • Verifying that og:url and the canonical agree, so social shares and search both reference the same address.

  • Auditing a competitor's home page to see how they handle canonicalization and indexing directives.

  • Quickly reading a site's robots meta tag to spot an accidental noindex on the home page.

常見問題

如果規範標籤指向另一個網站會怎樣?
Google會將排名信號集中到目標URL上。如果你的頁面被錯誤地規範化到另一個網域,你將失去全部排名。

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