Web 與 SEO

Canonical Tag Checker

Compare a page URL and canonical URL to spot self, cross-domain, and mismatched canonicals.

浏览器内处理即时输出本地数据

Canonical 結論

自引用 canonical

為什麼用這個工具

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Review canonical relationships and generate the link tag snippet you need to publish.

Use this when auditing canonical relationships or preparing metadata for a page template.

It highlights whether the canonical points to the same page, another page, or another domain.

怎麼使用

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01Enter the page URL and intended canonical URL.
02Review the verdict and the generated canonical tag.

複製前快速檢查

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先确认输入格式符合你的预期。

在把结果用于文档、链接、配置或消息前快速扫一眼。

只复制你真正需要的输出。

常見問題

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Does this fetch a live page?

No. It checks the URLs you enter and generates the tag snippet locally.

What is a self-canonical?

A self-canonical is when a page declares itself as its own canonical, signaling that it is the preferred version of that URL.

When would a cross-domain canonical be used?

When content appears on multiple domains and you want search engines to consolidate authority on one preferred version.

相關工具

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SEO Preflight Workspace

Run page launch checks for title, description, canonical, robots, sitemap, and hreflang in one workspace.

Meta & Social Preview

Plan meta title, description, Open Graph, and social card copy together, then hand off one clean tag bundle.