规范URL是网页的首选版本。它出现在页面上的一小段代码中，告诉搜索引擎如何抓取页面并对内容的重要性进行排名。如果您在不同的网址上找到相同的内容，则使用此代码(称为rel = canonical标记)将有助于搜索抓取工具更好地了解哪些内容很重要，解决重复的 ...

最近听到很多SEO 对在页面的规范版本用规范 URL 标签( canonical URL tag) 时会有问题。很多人对于只有重复内容应该用 rel ...

Google updated their rel canonical documentation in order to clarify how Google handles the extraction of rel canonical annotations. The clarification is not meant to ...

Then he pointed out a confusing signal he saw: He said "rel=canonical to the first page + rel next/prev are a bit conflicting, either it's the same as the first page, or they're paginated series." ...

Many webmasters will be happy to know that Google has announced its support for using the rel=”canonical” link element across different domains. This is important ...

Google can absolutely ignore rel canonical if the content isn't the same, but this is the exact same article word for word. Cross domain canonical is the recommended solution for handling syndicated ...

Google’s John Mueller has advised that rel=canonical does not necessarily guarantee Google will recognize a page as the canonical version. This was stated by ...

Google announced they are now supporting the rel=”canonical” attribute within HTTP headers. This enables webmasters to set up a canonical for linking to or from ...

Kevin Graves gives us several reasons why the HTTP header link has not had a ton of traction in the SEO industry, before explaining how to advance them. Google ...