Trình kiểm tra thẻ canonical

Cách sử dụng công cụ này

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.

Trình kiểm tra thẻ canonical là gì?

Các trường hợp sử dụng phổ biến

• 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.

Câu hỏi thường gặp