Canonical Tag

A “Canonical Tag” (also known as “rel canonical”) is a way of telling search engines that a specific URL represents the master copy of a page. Using the canonical tag prevents problems caused by identical or “duplicate” content appearing on multiple URLs. Essentially, the canonical tag tells search engines which version of a URL you want to appear in search results. 

Importance of Canonical Tags for Google

Google values the canonical tag as it helps streamline the indexing process. When Google understands which version of a URL is the canonical one, it can index your site more effectively. This clarity helps Google present users with the most relevant search results, enhancing the overall user experience. Canonical tags signal to Google the location of the content that should be considered in search rankings, thereby influencing how content is displayed in SERPs.

Best Practices for Using Canonical Tags in SEO

  • Correct Implementation: Ensure the tag points to the correct canonical URL. Incorrect implementation can lead to the wrong page being indexed.
  • Consistency Across Website: Be consistent in the application of canonical tags across all pages to avoid confusion for search engines.
  • Use in Syndicated Content: Apply canonical tags to content that’s syndicated or republished from other sources, directing back to the original content.
  • Handling Similar Content: For pages with similar content but slight variations (like product pages with different colors), use canonical tags to focus on the primary product page.
  • Avoid Canonical Chains: Don’t create long chains of canonical tags; point directly to the final preferred URL.
  • Canonicalize Cross-Domain Duplicates: If you have the same content across different domains, use the canonical tag to specify the preferred domain.
  • Self-Referencing Canonical Tags: Even if a page doesn’t have duplicate content, it’s good practice to include a self-referential canonical tag.
  • Regularly Audit Canonical Tags: Periodically check your site to ensure all canonical tags are correctly implemented and updated as needed.


Canonical tags are a vital element in the toolbox of SEO best practices. They provide a way to manage and direct search engine traffic to the most relevant pages on your site, improving both indexing efficiency and user experience. A well-implemented canonical tag strategy can significantly enhance a website’s SEO performance. Remember, it’s not just about managing duplicate content, but about guiding search engines and users to the best content your site has to offer. Implementing canonical tags correctly ensures your site’s SEO efforts are focused and effective, paving the way for better visibility and higher rankings in search results.

Be an ambassador of the new SEO and earn money with us
We not only boost SEO — we help to earn money
Share your referral link and earn 25% of our commission
Our top partners are earning $20.000-50.000 monthly