Keyword Cannibalization: How It Hurts SEO & How to Fix It.

Krittitee Tongdang
June 20, 2023
If you optimize multiple articles with the same keyword, your rankings may drop due to keyword cannibalization. In this case, you’re essentially competing with yourself and hurting your own chances of ranking higher on Google. This becomes even more painful if one of your pages is performing well but suddenly loses its position because another page from the same domain is ranking with the same keyword. As a leading Digital Marketing Agency specializing in SEO, we’ll explain why keyword cannibalization negatively impacts SEO performance and how you can detect and fix it before it damages your visibility.

What is Keyword Cannibalization?

Keyword cannibalization happens when multiple pages or blog posts from the same website compete for the same keyword on Google. This often occurs because topics are too similar or have been optimized with the same keyword. As a result, your pages end up competing with each other. Normally, Google shows only 1–2 results from the same domain for a keyword, unless your site has extremely high authority, in which case you might see up to 3 results.

Why is Keyword Cannibalization Harmful for SEO?

If your site suffers from keyword cannibalization, it means you’re competing with yourself in Google’s search results. Imagine having two very similar posts on your site—Google won’t know which one deserves to rank higher. This confusion splits your SEO signals. Backlinks, click-through rates (CTR), and other ranking factors get divided across multiple pages, which weakens the performance of all of them. Instead of boosting one strong page, your rankings drop across the board. To avoid this, it’s crucial to establish clear keyword targeting for every page and prevent duplication. Even when using slightly different focus keywords, cannibalization can still occur. For example, you may write one article about “Is readability a ranking factor?” and another about “How to rank better with readability.” While they appear different, Google often sees them as covering the same topic, making it difficult to decide which deserves the higher ranking.
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How to Check if You’re Affected by Keyword Cannibalization

Detecting keyword cannibalization is simple. Search for your domain with a specific keyword using the “site:” operator—for example: “site:yourdomain.com keyword cannibalization.” If two or more results show up for the same keyword, you’re experiencing cannibalization. Then, search for the same keyword in Google without the domain filter. This will reveal which pages rank for that keyword and their positions. If your pages rank in the top 1–2 spots, you may not need to worry too much. However, if they’re dropping to positions 7, 8, or lower, it’s time to take action.

How to Fix and Prevent Keyword Cannibalization

There are four main steps to solving keyword cannibalization:
  • Update and optimize content
  • Analyze content performance
  • Keep the strongest-performing page
  • Merge, delete, or redirect pages when necessary
The first two steps help you decide whether to consolidate, keep, or remove content. Sometimes, you may need to do all three—update, merge, and delete—simultaneously to maintain healthy rankings.

Merge Similar Articles

If two articles target the same audience and topic, consider merging them into a single, stronger piece. A comprehensive, well-optimized article often performs better and resolves keyword cannibalization issues. (Pro tip: Google favors in-depth, long-form content.) When merging articles, you’re also improving readability, which can further support your rankings. Don’t forget: after merging, redirect the weaker page to the stronger one instead of deleting it outright. Otherwise, you risk broken links and redirect errors.
Read more about what SEO is and why every marketer should understand it.

Improve Internal Linking

You can guide Google to identify the most important page by refining your internal linking strategy. Link from less important posts to the primary one you want to rank higher. This helps Google understand which page carries more authority and deserves better visibility.
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Keyword Cannibalization in E-commerce Stores

If you run an online store, keyword cannibalization can often occur on product pages. Since e-commerce sites naturally have multiple product listings, site structure and hierarchy are critical. A proven strategy is to link individual product pages to category pages or a main landing page you want to optimize. Also, don’t overlook old product pages—they can easily cause cannibalization issues. Removing or redirecting outdated product pages can help protect your rankings.

Keyword Cannibalization: A Threat to Growing Websites

As your website grows, the likelihood of facing keyword cannibalization increases. Sometimes, your favorite topics can be the cause of the problem. That’s why you should carefully analyze your target keywords and ensure you’re not trying to rank multiple pages for the same one. Focus on building one strong, authoritative page per keyword instead of splitting your efforts. Our expert SEO Agency specializes in competitor analysis, content structure planning, and keyword mapping to help businesses achieve sustainable growth and top rankings on Google.

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