What is the Canonical Tag?

canonical seo

Search engines are constantly implementing more and more efficient methods to counter duplicate content on the web.

The year 2009 saw the implementation by the major search engines (Google, Yahoo and Bing) of the (Google, Yahoo and Bing), a tool that resolves duplicate content, namely the Canonical.

What is the Canonical tag

The Canonical Tag is an element that is inserted into the link of a URL, with the purpose of signaling to search engines the main or the main or source content that we want to position and the duplicates.

The implementation of this resource allows to optimize the indexing of the website.

The implementation of this tool is very useful when, within the same portal, we have available portal, we have at the disposal of several pages with very similar content. Before its creation, there was a constant problem when the owners of the portals wanted to highlight the main page. Wanted to highlight the main page.

Now with canonical tag is now used to properly position a website to increase its traffic, together with increase its traffic of visits, in conjunction with a good structuring of contents.

Examples of Canonical tag

By a simple insertion the programmer lets search engines see the original content. original content. As you can see in the following example:

<link rel="canonical" href=http ://www.tupaginaweb.com/home.html/>

The term <link/> encompasses the canonical link and positions the <head/> element. the <head/> element of the source code. It is used only when the content is the same as that of the source page. There are canonical tags between domains, canonical tags for files.

  • Canonical tag domains. When replicating contents in different blogs belonging to different domains, we will apply the canonical tag to avoid duplicity errors.
  • Canonical files tag. Applicable for cases where you want to present the same file through different links. The canonical tag can be applied to specify the original link to the search engine. PDF files are very common in these cases.

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