Understanding how duplicate content affects SEO and how to fix it can help website owners maintain stronger search performance and deliver a better user experience, whereas duplicated content may lead to derankings or struggling SEO. But how exactly does publishing duplicated content affect your SEO?
Let’s take a look at it in this article.
What Duplicate Content Actually Means
Duplicate content (specifically text) refers to blocks of texts that appear in more than one location on the internet, which can happen within the same website and also across different websites. In other words, duplication happens when two or more pages have the same or very identical content.
When duplication occurs within the same website, it’s called internal duplication and may happen if the website is publishing two or more pages with the same text, such as publishing similar product descriptions on multiple pages. Another way duplication can occur in a website is if it creates different URLs that display the same content.
When duplication occurs across different websites, it usually happens when content is copied or republished, or syndicated, without a meaningful change in it, such as when the same article is published on different websites.
Plagiarism can occur as well, if your content is identical to someone else’s, which falls under the broader category of duplicate content. But plagiarism is usually a matter of clarifying the source rather than avoiding wording overlap, though both are important.
Why Search Engines Tend to Derank Duplicated Content
Search engines are one of the main sources of information. In fact, 63.41% of all web traffic happens via the search engine giant, Google, in the US.
This shows us how dependent people are on search engines. But Google isn’t the only search engine or source of information available to people. Many use other search engines whereas some also rely on social media platforms like Facebook. As such, Google (and other search engines) try to compete with all channels of information by prioritizing not just speedy results and accuracy in information but also uniqueness and variety.
For example, if you search “how to brew coffee,” you’ll likely see different ranked pages covering the same topic, but each offering a unique angle or perspective, such as:
How to Brew the Perfect Coffee
How to Brew Coffee at Home
The Best Method for Brewing Coffee
How to Make Coffee without a Coffee Maker
This gives users variety to choose from so they can benefit from whichever page they find most relevant to their intent.
But to keep search results unique, search engines strictly avoid ranking duplicated content. Websites that publish duplicated or near-identical content are likely to face derankings and SEO problems, and even penalties in some cases.
How Duplicate Content Impacts Search Rankings
When search engines find duplicated content, they need to decide which version is the original or most authoritative.
In ideal cases, search engines aim to rank only one unique page relevant to the search. Even if multiple pages present the same content for a query, the search engine prioritizes ranking one version of it and must decide which one is going to be that version.
This process can lead to unpredictable results, because it’s not clear to the engine as to which page to rank, so sometimes it ends up ranking the one the website owner didn’t actually intend to rank, such as a category page or a duplicate version of an article. What happens due to that is the actual page gets less visibility and doesn’t rank well.
The overall ranking strength of pages also gets impacted. Ranking signals, such as backlinks and user engagement, get diluted and split between the multiple versions of the content—the impact of which is reduced and makes it harder for any one page to rank well. Even if the content is high-quality, its engagement and ranking potential will be lost.
Plagiarism, on the other hand, can lead to more severe consequences, including derankings and penalties.
The issue can greatly affect a website’s organic traffic if it has too many duplicated pages remaining unchecked.
Common Causes of Duplicate Content
Duplication in content isn’t always intentional, like in the case of an intentional copy-paste that causes plagiarism. In many cases, websites end up with duplicated content due to technical structures or content management systems (CMSs). Some publishing practices can also be the reason.
Here are some of the the common causes:
Multiple URLs leading to the same page
Reused product descriptions, which is a common practice on e-commerce platforms
Content syndication (republishing existing content on different platforms)
Reusing large sections of previously published content
Publishing very similar pages targeting slightly varied keywords
Repeating information published elsewhere without linking to or citing the source (plagiarism), often with similar wording
If your website is creating or ranking for multiple versions of pages, the aforementioned reasons could be behind the duplication.
How to Identify Duplicate Content on Your Website
Fixing happens after you’ve identified duplicate content on your website.
Start by reviewing pages that cover similar topics. Check pages that contain repeated descriptions if it’s an e-commerce platform.
SEO tools can also help detect duplicate text on your website. They can analyze content and identify pages with similar URLs. You can also check indexed pages by searching for them via search engines. Multiple pages might appear if there’s duplication.
Remember to check for plagiarism as well by using a plagiarism detector to check if an article is plagiarizing another website.
Ways to Fix Duplicate Content
The exact way you fix duplicate content depends on the nature of the exact problem and what you want to do.
Fixing duplicate content usually involves improving the uniqueness and structure of website pages.
A common solution is to rewrite the content, manually or by using an AI plagiarism remover, so that the individual versions have different wording. But only changing the wording isn’t usually enough if the page covers information. Google’s standards for information-focused pages are stricter. So, you might need to add some value, such as providing unique explanations, covering unique examples, or offering fresh angles.
Merging pages is also a technique, and sometimes it’s better—to merge multiple pages into a single one if they cover identical information and are unneeded.
You can also use canonical tags. They tell search engines as to which version of a page should be treated as the main one. The canonical page then receives the ranking credit.
Redirects are a simple yet useful technique to direct traffic from a duplicate page that you don’t need to the primary one. Both search engines and users then land on the correct page.
Improving internal linking can tell search engines which pages are more important. Search engines receive clearer signals about which page should rank when other pages link to the preferred version consistently.
Paraphrasing the text for uniqueness and crediting the source are essential to prevent plagiarism if you’re borrowing information or wording.
Conclusion
Duplicate content can impact your website’s SEO performance and lower its ranking potential. This can happen when search engines find similar pages, targeting slightly different keywords, and get confused about which one to rank, which can lead to splitting of ranking signals and reduced visibility. The solution involves identifying duplicate pages and fixing the problem through various ways, such as rewriting, redirecting, consolidation, or using canonical tags. Making sure pages remain original and maintain uniqueness from the start can help prevent duplication and ranking issues.
