Are you struggling to make your own web pages more visible in search engines? Keyword cannibalisation might be sabotaging your hard working efforts without you even knowing it…

On your website, multiple pages are bound to talk about the same thing, whether it is about a product or various niche information topics. Sadly, this can sometimes lead to keyword cannibalisation, which will affect your ability to rank in search engines. In this article, we will explore, in-depth, what is keyword cannibalisation, as well as how to identify, resolve, and prevent this SEO mistake, ensuring your site’s content works cohesively to improve your search rankings rather than working against it.

Key Points:

• Understand the basics of keyword cannibalisation and why it matters.
• Learn how to spot cannibalisation issues on your site.
• Discover tips to prevent future occurrences of keyword cannibalisation.

What Is Keyword Cannibalisation? 

Keyword cannibalisation occurs when multiple pages on your website compete for the same keywords. This competition can weaken your SEO strategy because search engines struggle to decide which page to rank higher for a particular query. This misunderstanding can also affect your site’s authority and decrease the effectiveness of your SEO efforts.

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How Does Keyword Cannibalisation Occur? 

Keyword cannibalisation often happens unintentionally when:

• Multiple articles or pages are created over time, each targeting similar keywords.
• New versions of pages are published without redirecting old ones, splitting the search authority.
• Similar pages are optimised for identical search phrases without considering the overall site structure.

Understanding the root causes of keyword cannibalisation can help in identifying and addressing these issues quickly and effectively.

Does Keyword Cannibalisation Damage SEO?

Yes, keyword cannibalisation can negatively impact your site’s SEO in several ways. It can:

• Lower the conversion rates by confusing potential customers with multiple similar pages.
• Decrease the authority of your pages, as search engines might not view them as authoritative sources on the topic.
• Affect your site’s crawl budget, as search engine bots spend time crawling multiple similar pages instead of new, unique content.
• Lead to a confusing user experience, making it harder for visitors to find the information they need.
• Spread backlinks thin across several pages, weakening the link equity that could be concentrated on one strong page.

Is Keyword Cannibalisation Always Bad?

Not all circumstances of using multiple varieties of the same keywords across several pages will necessarily lead to keyword cannibalisation.

It’s acceptable to target the same keyword on multiple pages when the search intent behind each page differs. For example, a page focusing on “digital marketing services” might target commercial intent, whereas another page on “what is digital marketing” might cater to informational needs. 

Both pages could potentially rank for the primary term “digital marketing” without negatively impacting each other, as they both meet different user intents.

How To Prevent Keyword Cannibalisation

There are various ways in which you can prevent keyword cannibalisation before it even occurs. If, however, it does happen and you have become aware of it, here are some methods to effectively resolve it:

1. Conduct a Content Audit

A thorough content audit is the first step in detecting keyword cannibalisation. By analysing every page, you can pinpoint which ones are targeting identical keywords. 

This method is efficient and necessary for ensuring that your site’s content architecture supports rather than impacts your SEO goals. 

During the audit, note pages with overlapping content and similar keyword targets, then plan on merging or altering these pages to eliminate competition among them.

2. Use Google’s Site Search Command

To uncover potential keyword cannibalisation without using external tools, use the “site:” search command in Google. 

Simply type site:yourwebsite.com “[insert keyword]” to find all instances where a specific keyword is mentioned on your site. 

While this search can return many results at once, it’s important to sift through them to identify genuinely competing pages e.g., if you sell makeup products, and you have a product guide that discusses a particular one that is outranking the product page itself. Which would you prefer to rank?

Remember, not all results indicate a problem; some may target different aspects or intents of the keyword.

3. Remove Host Clustering

Another tactical approach involves more advanced Google searches to exclude similar pages from search results, a practice known as removing host clustering. 

This method helps to identify which pages Google has identified as being too similar, giving you a clear idea of where keyword cannibalisation might be occurring. Understanding this can guide you in deciding which pages to keep, merge, or redirect.

4. Use Keyword Tracking Tools 

There are multiple SEO tools that you can use to monitor your website, including SEMRush and Ahrefs. Whilst subscriptions to these services are hefty, they can provide valuable results to help you track positive or negative results on your website. 

5. Google Search Console (GSC)

GSC offers a direct way to spot keyword cannibalisation issues through its performance reports. 

By examining the ‘Pages’ tab after selecting a problematic query, you can see which URLs are ranking and drawing clicks for the same keyword. 

This visibility is crucial for deciding your next steps, whether it’s improving the content on one page or gathering multiple pages into a single resource.

6. Reviewing Your Sitemap 

Your sitemap effectively serves as a roadmap to your site’s content layout and is another tool for identifying keyword cannibalisation. 

Conduct a control + F search for specific keywords within your sitemap to quickly locate any pages that might be competing against each other. Although not every finding will highlight an issue, this method helps highlight potential problem areas that require further investigation.

7. Merge Your Content

Merging content involves combining similar articles, blog entries, or FAQs into a single comprehensive guide. This not only simplifies your website’s structure but also makes your content more potent and attractive to search engines. 

Here’s how to approach this:

• Evaluate Content Strength: Assess which pages to merge based on their performance metrics, such as traffic, engagement, bounce rates, and backlink profiles. Choose the page that performs better or is more comprehensive as the primary page.
• Retain Essential SEO Elements: When combining the pages, ensure that primary keywords and content that have historically performed well are incorporated seamlessly into the new page. This approach helps preserve the SEO value of the content.
• Implement Redirects: Set up 301 redirects from the less important pages to the new, consolidated page. This practice passes the SEO benefits from the old pages to the new one and helps prevent confusion among search engines and users.
  

8. Improve Your Internal Linking

Optimising your site’s internal linking structure will help search engines to understand which pages are most important. Use descriptive anchor text for internal links that points to the consolidated page, reinforcing its relevance for the specific keywords targeted. 

This strategy also improves navigation for users, helping their overall site experience.

9. Using Canonical Tags

In cases where duplicate content cannot be avoided, such as on large e-commerce sites with similar product pages, implementing canonical tags is a viable solution. 

By adding a canonical tag in the HTML head of a page, you can direct search engines to consider it as a duplicate of a specified URL, helping to maintain clear and organised site indexing.

Preventing Future Keyword Cannibalisation

Now that you are aware of the issues that could impact keyword cannibalisation, there are still future methods that you could implement to ensure you are ahead of the issues before they begin to cause a problem for your website:

• Develop a Keyword Strategy: To avoid future issues with keyword cannibalisation, establish a clear keyword strategy. Assign distinct primary keywords to each page based on their content and intended user intent. This ensures that every page serves a unique purpose and targets specific search queries.
• Monitor and Adjust: Regularly review your site’s performance and keyword alignment to ensure that new content does not revert to cannibalising existing pages. Monitoring these results in Google Search Console and Google Analytics will keep you ahead of the curve.
• Evergreen Content: Instead of fragmenting your content across multiple similar posts, focus on creating comprehensive, evergreen pages. These pages gather information on a given topic into a single, authoritative source that remains relevant over time. This approach minimises self-competition within search engine results pages (SERPs) and strengthens your site’s overall SEO. Evergreen content requires less frequent updates, providing lasting value to your audience and maintaining its search relevance long-term.
• Noindex Tags: While it might be tempting to use a noindex tag to quickly resolve keyword cannibalisation, this method can lead to significant drawbacks. Removing a page from search engine indexes can erase any established search rankings and traffic benefits it might have. Furthermore, this approach does not address the root of the problem—instead, it simply removes visibility, potentially decreasing your site’s overall traffic and engagement.
• Why De-optimising Isn’t Always the Answer: De-optimising pages by stripping them of target keywords may seem like a straightforward fix to keyword cannibalisation. However, this can be detrimental if the page also ranks for other valuable keywords. A better approach is to refine the page’s focus, ensuring it targets a unique aspect of the topic that other pages do not cover.

In conclusion, effectively managing keyword cannibalisation involves plenty of strategies which can be easily implemented to ensure that your website doesn’t get impacted by internal competition. However, be sure to approach some of these activities with caution, as these methods can sometimes do more harm than good. Still unsure about the progress of your website? Hire a digital marketing agency today and have expert professionals by your side to ensure you outwit your competitors first.

FAQs

Sources

Ahrefs. (2022) What is a No Index Tag? [online] Available at: https://ahrefs.com/seo/glossary/noindex-tag [accessed 27/03/2025]