Editor’s Note: This guide has been fully updated for 2026. What does that mean? Keyword cannibalisation is still an SEO mistake to avoid, but the rise of Google AI Overviews, GEO, and LLM-driven search has changed how redundant content affects visibility.
Every now and then you come across a work term that is just so delightfully weird that it causes an uncontrollable titter.
Any normal person hearing the term cannibalisation is bound to conjure up the chorus line from Michael Jackson’s ‘Thriller’ music video, a dodgy Hollywood version of Indigenous Peoples in Voluntary Isolation (official term), or, at the very least, everyone’s favourite Welsh cannibal, Hannibal Lecter. 🍷🫘
But in the digital marketing world, keyword cannibalisation is neither that violent nor that exciting. However, it can be detrimental to your website, so without further ado, let’s take a look at what keyword cannibalisation is and how we can avoid it.
What Is Keyword Cannibalisation in SEO?
Pre-AI, keyword cannibalisation referred to two or more pages targeting the same keyword or closely related intent, making it harder for search engines to determine which page should rank. This cannibalisation issue was often caused by gung-ho businesses wanting to create topical authority by covering every angle possible without carefully mapping their content strategy before barrelling down their content list.
Unfortunately, this is not a case of ‘the more the merrier’. Instead of ranking multiple pages higher on the SERP, Google’s algorithm won’t know which page is the most authoritative or relevant. So instead of flipping a coin and shooting the winner up to page one, both pages could end up ranking lower than they would have if there was just one comprehensive page.
For example, your company makes cloud-based CRM software and you have two dedicated pages that discuss your software’s features, presumably with the same or very similar keywords. Because both pages can appear on a search result page for anyone looking for CRM software features, Google won’t actually know which one of your two pages is most relevant.
How Has the Cannibalisation Issue Evolved Since AI?
Today, keyword cannibalisation is less about identical keywords and more about overlapping search intent. If two or more pages answer the same query, or cover the same topic from nearly the same angle, search engines may struggle to decide which URL should rank. That can dilute signals, split visibility across multiple pages, and make it harder for your strongest page to surface in organic results or AI-generated answers.
Why Is Keyword Cannibalisation Bad?
If the goal of SEO is to rank on page one in search engines, being down-ranked by your own pages is defeating the whole purpose. We wouldn’t call it cannibalisation for nothing. In essence, the pages are eating into each other. Hence the very cool term.
If you’re trying to be surfaced in a Google AI Overview answer, cannibalisation will kill that dream of yours. When AI bots crawl your site to synthesise a direct answer for a user’s prompt, they look for a single, definitive ‘source of truth’ on your website.
But, if your site is offering up multiple pages with overlapping topics and intents, the AI may struggle to identify a single authoritative page, which reduces your chances of being cited.
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How to Identify Cannibalisation Issues
There are a few ways, but if you’re reading this article, then you probably already know you have a problem.
Step 1: Perform a Site Search
Use the Site: Search Operator. Type in your URL into Google’s search bar along with the relevant keyword.
Google will then display all pages on your site that are relevant to that query. Hopefully, the page you want to rank is showing at the top. If not, then something needs to be addressed.
Step 2 : Find Your Ranking Pages on Google Search Console
In GSC, go to the Performance tab on the left-hand menu to see your site queries. Click on one of those queries (this adds the query to the filter), then click on Pages on the top menu. This will show you which pages are being shown in the results for that query.
Ideally, each query should have a prominent page. Branded terms can make things complicated, but in this example, our primary page should show the largest amount of impressions and clicks. If you see two pages showing a similar number of impressions for a query, then Google doesn’t know which page to serve. If that’s the case, beware! There be cannibals afoot.
2026 Update Note: When analysing your queries in GSC today, look for fluctuating canonical URLs. If Google keeps switching between URLs for the same query or cluster of related queries, that’s a strong sign your content is overlapping in intent and competing with itself. Additionally, look across multiple related queries because if two different URLs are trading places across an entire cluster of synonyms, you have an intent-splitting issue.
Step 3: Use Your Rank Tracking Tool
This only works if you are tracking the chosen query already. If you’ve come prepared, then go ahead and check the ranking URL for your target keywords. If the tool shows that different URLs are being served and the ranking position is fluctuating, then it’s confirmed— cannibalisation!
How to Fix Keyword Cannibalisation Issues
Keyword cannibalisation is something that should be dealt with as quickly as possible. Fortunately, it doesn’t take too much work to stop your pages from eating each other.
Here’s how to do it:
Review Your Content
First things first, read through the pages in question. Is one piece of content really short and the other longer and more in depth? Is one old and outdated whilst the other is up to date? The simplest solution is to delete one of the pages if the content is not up to scratch and redirect (301) the URL to the better page.
Could the pages be merged to create one pillar page or ‘cornerstone asset’? If so, simply redirect the other URL to the new page. Instead of just stitching text together, make sure the consolidated page is the clearest, most complete answer on the topic, with a strong structure that makes it easy for search systems to understand and extract key points.
Is the content on both pages good, but one of the pages is more concise, less ‘keyword-rich’, and perhaps included in your main menu while the other page is longer and more ‘keyword-rich’? You can noindex the shorter content piece and keep the more in-depth and informative piece for people using search.
Tweak Content for Distinct Stages of the User Journey
So, let’s take a look at two battling pages:
- www.myninjawebsite.com/ninja-outfits/
- www.myninjawebsite.com/ninja-clothing/
Are they actually about slightly different things? If so you cannot just swap out words for long-tail variations, because search engines can still see those pages as covering the same intent.
Instead, you must clearly differentiate their intent. Keep your primary hub page focused on the broad commercial topic. Then, pivot the second page to target a completely different stage of the user journey, i.e., turning the outfit page into your ecommerce page and adding elements that signal transactional intent, i.e., ‘Add to Cart’ buttons, etc.; and then turning the clothing page into a top-of-funnel informational guide (in a perfect world, the slug would also reflect this).
Now we have:
- www.myninjawebsite.com/ninja-outfits/
- www.myninjawebsite.com/ninja-clothing-history-guide/
Use Internal Links Wisely
Internal linking is a powerful tool when used correctly. If you use an exact match anchor, i.e., link to another page using the term ‘ninja outfit’ as the hyperlink text, then this tells search engines that the page receiving the link is important and it’s about nanja outfits.
You can add links to and from both pages (reciprocal linking) but in this example, it’s better to try and show a hierarchy and tell Google which page is the important one.
What to Expect After the Changes
Give your changes enough time to be crawled, reprocessed, and reflected in search results before drawing conclusions. Will it take seven days? Maybe? Two weeks? Also maybe. What about after one month? Another maybe.
One small adjustment might fix keyword cannibalisation, or you might need to make a few tweaks every fortnight until you have the issue fixed.
As with anything to do with SEO and GEO, these things can take time. But while you’re waiting for the results of your changes, you can rest easy knowing that at least you’re not making the situation worse.
If you’re not sure how to comprehensively cover a topic without creating overlapping pages, you may need additional guidance on topic mapping and keyword research and strategy.
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