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The Effect of Canonical Tags on Your Website’s Indexing and Ranking

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In today’s digital-first world, businesses constantly strategize to improve their online visibility. An effective SEO strategy plays an integral role in this process. Among the numerous SEO practices that can be implemented, using canonical tags is one that often goes overlooked. In this blog post, we will explore the concept of canonical tags, their effect on your website’s indexing and ranking, and how to employ them effectively.

What Are Canonical Tags?

A canonical tag (rel=”canonical”) is a way of telling search engines that a specific URL represents the master copy of a page. This tag helps prevent issues caused by identical or “duplicate” content appearing on multiple URLs, thereby aiding in your SEO efforts.

The Role of Canonical Tags in SEO

Search engines, in their quest to present the best possible content to users, often penalize duplicative content. The reasons for this might include the misleading perception of manipulation attempts or the dilution of content relevance and quality.

However, in some instances, having duplicate content is unavoidable. For example, a product page on an e-commerce site might be accessible through various URLs due to factors such as tracking parameters or different categorization paths. This is where canonical tags come in.

By using a canonical tag, you can specify to search engines which version of a webpage is the “main” or “canonical” one and should be indexed and ranked, helping preserve your website’s SEO integrity.

How Canonical Tags Affect Indexing and Ranking

1. Consolidation of Ranking Signals:

Without a canonical tag, search engines treat different URL versions of the same page as separate entities with their individual ranking signals. This can lead to a dilution of the link popularity, as the link equity is spread across all versions.

By using a canonical tag, you consolidate the varying versions of a URL to a single one. The link signals from the duplicate pages are consolidated, which can potentially improve the page’s organic search visibility.

2. Prevention of Duplicate Content Issues:

When search engines find duplicate content, they need to choose which version to list in search results, which can potentially lead to issues such as less relevant versions appearing in search results, splitting of traffic, or even penalties.

The implementation of canonical tags specifies which version of a page search engines should favor. This clarifies duplicate content confusion and ensures that your chosen URL appears in relevant search results.

3. Crawl Efficiency:

Search engine bots have a crawl budget – a certain amount of data they crawl on your site during a given time. If your site contains many duplicate URLs.

By specifying canonical URLs, you help search bots make better use of their crawl budget, improving the indexing of your site.

Implementing Canonical Tag Effectively

Here are a few best practices you should follow:

When choosing a canonical URL, ensure it is the one that best represents the information on the page and will offer the best experience for users.
Use absolute URLs instead of relative URLs to avoid potential misinterpretations.

Regularly review and update your canonical tags, especially during website redesign or migration.


The strategic use of canonical tags is a crucial aspect of effective SEO. Despite being a technical tool, understanding its importance. And integrating it into your SEO strategy can prevent potential ranking issues related to duplicate content. Thereby enhancing your website’s visibility and organic rank performance. Always remember – in the world of SEO, it’s not just about creating great content.

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