The writer’s views are totally their very own (excluding the unlikely occasion of hypnosis) and will not at all times replicate the views of Moz.
On this Whiteboard Friday, Jon discusses determine, repair, and stop cannibalization. He identifies three particular kinds of cannibalization: inside, worldwide, and subdomain.

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Video Transcription
Hey, Moz followers. How’s it going? My identify is Jon Earnshaw. I am the Chief Product Evangelist at Pi Datametrics, and at the moment I will be speaking a couple of topic that’s tremendous near my coronary heart, and it has been near my coronary heart for over 15 years. After I was analyzing the SERP in the future and I began to find this uncommon flux, and what I used to be seeing was content material that was doing rather well on web page 1 and immediately it drops.
Then after just a few weeks, we seen that it wasn’t dropping for no cause. This content material was dropping as a result of different content material in some way conflicting. Now, we all know there is not any such factor as a replica content material penalty, and Google has at all times stated that. However what we’ve understood since then is that Google and different serps as properly have gotten more and more delicate to content material of an analogous nature, and that is what cannibalization is all about.
So at the moment we’re going to check out the way you determine it briefly as a result of you are able to do that with instruments. I will present you ways you repair it, and eventually the way you stop it from occurring within the first place, and if you happen to get that bit proper, you clearly needn’t fear about one or two.
Step 1: Determine the kind of cannibalization

So cannibalization, there are three varieties. Properly, there are extra, however there are three varieties that we form of want to concentrate on.
The primary one is inside battle or cannibalization. I am going to use these phrases interchangeably. That is the place your content material conflicts with itself. Then we’ve worldwide battle, and that is a very completely different kettle of fish, as a result of that is handled, for instance, by hreflang. So we’ll preserve that out of the combo.
Then we’ve subdomain battle, and subdomain battle is one thing that may at all times occur. For instance, when you’ve got a assist subdomain, assist.mysite.com, and you have content material on there that is much like the content material in your major area, that is at all times going to battle. However we’re not going to speak about that at the moment. Actually, we will discuss inside battle and the way you repair it to start out with.
Step 2: Repair cannibalization points

So lets say you get up in the future, you had been on web page 1 for “males’s blazers.” All of us need to be on web page 1 if we’re promoting males’s blazers. Then immediately you discover your content material drops. Then whenever you take a more in-depth look, you would possibly uncover that you’ve got a number of URLs returning over a time frame for a similar key phrase. A degree to notice about cannibalization, it occurs at key phrase stage.
It isn’t content material stage. It is all in regards to the key phrase. So one piece of content material might not be in battle for one more time period, for a by-product time period, for instance “males’s jackets” or “males’s summer season jackets,” and that web page might exist superbly on web page 1. However lets say that you’ve got one, two, three, 4 pages.
These might be males’s summer season blazers, males’s winter blazers, males’s 2023 blazers, for instance. The probabilities are if these pages are related and in the event that they comprise the key phrase that you just’re making an attempt to place for, i.e., “males’s blazers,” within the title, likelihood is you are going to get battle as a result of we all know that the HTML title is likely one of the strongest indicators to Google from a theming perspective.
URL, title, Header 1, meta description, content material, all of that counts. However you may discover whenever you make adjustments to the title, that may have a reasonably instantaneous influence on visibility in lower than 24 hours. So again to our scenario of cannibalization. For URLs, what can we need to do? Properly, we have got to decide.
Which one can we need to be the doorway into our ecosystem? As a result of if we do not decide on which one is the doorway into our ecosystem, then Google goes to make that call for us and we will find yourself in a scenario of cannibalization. Cannibalization, it might be in line. It may all be occurring on the backside of web page 1. Generally individuals say, “Properly, I am on web page 1, however I do not actually care.”
However you need to care, as a result of think about your viewers are trying to find the boys’s blazer and so they discover your piece of content material and so they adore it, and so they come again the subsequent day and so they Google it once more, and so they discover it once more, “Oh, it is a completely different web page.” They go into the location in a unique space. Abruptly, I am confused as a result of we have got incoherent, uncoordinated, and haphazard doorways into our world.
So we have to make the choice and never go away that to the major search engines. There are a selection of issues that we will do to truly repair this. However the very first thing we have to do is examine the place of the URLs for different phrases, for by-product phrases. Do these items of content material place in their very own proper?
Earlier than we begin tampering, earlier than we begin taking part in with titles, earlier than we begin redirecting, earlier than we do something, do they place in their very own proper? Then we’ve decisions to make. One potential alternative, and I’ve seen plenty of shoppers do that, is to truly merge one of many older bits of content material and put that in with the brand new content material, and that works splendidly as a result of we’re not dropping something.
So we merge that, after which, in fact, we 301 the unique article. So we instantly get that injection of authority. Okay, downgrade the theme. How do you downgrade the theme? Keep in mind the title, the strongest ingredient on the web page? We will really change the title so it is not about males’s blazers. We will say “males’s outfits for the summer season,” if that is acceptable.
Once more, let’s not do this if that web page positions in its personal proper as a result of we do not need to lose that site visitors. We will additionally examine the site visitors to the web page as properly. Internally hyperlink. If we determine, for instance, that A is the web page that we need to be our doorway, let’s give it the authority that it must place.
Let’s hyperlink internally from B, C, and D to A utilizing the anchor textual content “males’s blazers.” What are we doing? Properly, we’re saying to Google this web page over right here is all about males’s blazers, and the anchor textual content and people hyperlinks are going to provide that web page the authority that it wants.
So we do this together with a few of these different choices. We will additionally No Index if acceptable. So we’ve a variety of instruments in our arsenal. However simply think about that we love all of those pages and we do not need to lose these as a result of that is summer season blazers, winter blazers, linen blazers, and different blazers.
One other factor that you are able to do, in case your CMS permits, is to truly construct a hub web page. Let’s name that hub web page Males’s Blazers, and let’s hyperlink down from the brand new web page, name that Web page X, Males’s Blazers, to this one utilizing the anchor textual content “summer season blazers,” to this one, Winter, Linen, and so forth. Then crucially, we take the interior linking right here and we hyperlink again from all of those to the hub web page.
What have we created there? This excellent hub and spoke construction inside our website that your viewers are going to make sense of and Google goes to make sense of it as properly. So actually it is about sending alerts to Google in order that Google does not get confused.
So that is right down to us as a result of the search engine is extremely delicate. In order that’s how one can repair it, and you have a variety of decisions.
Step 3: Forestall cannibalization
Lastly, my favourite half, how do you stop it? How can we not need to undergo this and this? Properly, the important thing to stopping it truly is to make use of one of many 4 pillars of contextual optimization.

Contextual optimization is all about optimizing within the context of the SERP, optimizing within the context of your rivals, optimizing within the context of Google’s algorithms, and optimizing within the context of your ecosystem. So what we imply right here is about earlier than I inject any new content material with reference to males’s blazers into my ecosystem, I’ve received to cease and suppose and ask the query, “Is there something inside my ecosystem that’s doubtlessly conflicting?”
That is the primary query you ask, as a result of if there are different items of content material within the ecosystem with “males’s blazers” within the title, likelihood is they are going to battle, and chances are you’ll find yourself taking one web page of web page 1 of Google and your web page by no means will get to web page 1. So chances are you’ll lose out throughout. So a very easy means of analyzing your ecosystem is with a website operator.
So website:www.mysite.com intitle, and also you usher in intitle, and we’re searching for, in inverted commas, “males’s blazers” as a result of that is going to return all of the pages out of your website, that Google has listed, which have “males’s blazers” within the title.
Keep in mind, the strongest theme. So we’d discover earlier than we inject the brand new content material, hey, I’ve received A, B, C, and D in my ecosystem. So we then return right here, and we make the choice. If it is a new piece of content material, I can begin to undertake and deploy a number of of those strategies to stop it from occurring within the first place.
Truthfully, cannibalization of content material is inflicting a lot lack of visibility. I might estimate someplace round 40% of content material that is sitting on web page 2 and three is right down to this. Determine the conflicts. As soon as we have completed that, we determine the enhances. How do you determine the enhances and why?
Properly, I am going to inform you why. As a result of whenever you put a brand new piece of content material into your ecosystem to go sit alongside these, it wants authority if it’ll carry out properly, and the perfect and quickest means of authority is to get that from different pages on a associated theme that discuss blazers or males’s fashion or males’s trend. We do one other website operator right here, website:www.mysite.com.
Overlook the intitle. Let’s search for “males’s blazers” within the physique copy. We will do this, and we will discover enhances. As soon as you’ve got discovered the enhances, you need to create hyperlinks utilizing “males’s blazers” because the anchor textual content to your new piece of content material. How do you discover older items of content material?
Inverted commas, “2019” or “2018.” Add that, you may immediately begin to discover older content material that you’ve got completely forgotten about and, along with these hyperlinks, which can be going to inject authority. You’ll be able to then add some redirects. Actually, in a nutshell, that is all there’s to it, figuring out, fixing, and stopping, and I assure these are all going to give you the results you want.
Thanks for watching.

