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Canonical Pages

Canonical Pages - Raptor SEO Data

Canonical pages have a canonical tag with a self-referential canonical link, these pages are the preferred version of pages on a site. For example, if a site is accessible with and without the ‘www’ we would apply a canonical tag to each page specifying which one is the preferred version. If a page is accessible from multiple URLs, canonical tags are used to determine which is canonical.

Canonical pages are the primary focus of SEO and as such we analyse canonical pages in depth and segment out this into its own category for various types of analysis. The summary section of our SEO tool provides a simple overview of the canonical components such as canonical pages, missing tags and various potential forms of duplication.


To better understand what ted ta we show in our SEO software means, what it means for your site and how to best utilise that data. At Raptor our SEO tools and digital marketing software is designed for SEOs by SEOs, we give you everything you need to make informed strategic decisions and drive organic visibility.  If you want to know more, check out the video guide below:



Why Are Canonical Pages So Important?

Most sites have their content accessible from multiple URLs, for example this page:

What this means is that you need to stipulate to Search Engines which of those pages is the canonical or preferred version of the page. Without doing this you lose control of what page is shown in the SERPs (Search Engine Result Pages).

If you are using custom landing pages for PPC and they are largely duplicating other pages this can cause duplicate content errors. So, handling your site’s  canonical configuration is vital for many reasons and can affect SEO.

This can also affect the authority of your site, if not handled properly and have a direct impact on your SEO. You can resolve pages to the canonical versions by using redirections like 301 and 302 but setting up canonical tags ensures that they are managed from all angles.


Why Do We Segment Canonical Page Data?

We segment this data so that you can see how many words or error exists that are specific to canonical pages. A duplicate meta description is not an error if its not on a canonical page for example.

This segmentation provides a more accurate picture the SEO pages and SEO content on a site.


What is a Canonical Page & How Do Canonical Tags Work?

A canonical tag sits in the <head>…</head> section of the HTML of a webpage and looks like this:
<link rel="canonical" href="">

If the canonical tag and the URL of the page match, then the page is a ‘canonical page’ for example on this page:

Canonical Tag:
<link rel="canonical" href="">

URL of Page">

To break this down further:<

<link rel="canonical"

This is a rel canonical tag and it specifies that the contents specified is the canonical  version  of the page.


This determines that this is a link.


This section specifies the canonical link itself.


This closes the tag.


What You Can Do with Canonical Page Data?

You can use this data to:

  • Identify canonical errors
  • Identify canonical duplication
  • Identify the SEO page on a site
  • To ensure that the page is indexable
  • To ensure that the page is listed in an xml sitemap

This guide is part of an extensive series of guides covering the data that we show in the summary tab of our SEO reporting feature. The following list of links shows all of the categories of data guides, videos and tutorials that we have. If you have any feedback on this or anything else, please fee free to get in touch: