The 5 Best Tools To Avoid Duplicate Content

Google does not like duplicate content! He obviously prefers original and unique content. Whether you are completely innocent or malicious, anyone can face a duplicate content problem on their website. What tools to use to detect duplicate content on your site? How to analyze a text before publication to see if it is not duplicated? In this article, we’ve compiled 5 tools to help you create unique content.

Reminder: what is duplicate content?

The definition of duplicate contentWhere duplicate content for English speakers, is quite simple. It is simply 2 online textual contents having a strong similarity between them. It may happen that it is completely innocent but generally, it is about people with bad intentions or who do not want to write by themselves. There is surely also a part of people who think that this is without consequence.

Anyway, it’s a practice to avoid urgentlyso as not to be penalized by Google in terms of the SEO of your pages.

It’s also important to know that duplicate content doesn’t just happen on different sites. If 2 pages of your site are composed of the same editorial content, you will be penalized by Google in the same way.

How to check and avoid duplicate content? 5 Tools to use

1 – Duplichecker, the duplicate text checking tool

From anti plagiarism software, Duplichecker is one of the best known. This site allows you to anticipate internal duplicate content problems. The operation is simple: you enter a text in Duplichecker, and it checks whether or not similar textual content exists on the web.

As such, once the analysis of your text is complete, you have access to a score, which gives you the authenticity percentage of your content. It is even possible to see the web pages on which there are similarities.

If you write an article on a very competitive topic, chances are that the authenticity is not 100%. On the other hand, in the context of writing a sales page, you have to be 100% authentic. You still have to tell yourself that if you wrote the text yourself, there is a good chance that it will not be duplicated.

Duplichecker: the anti-plagiarism tool
Duplichecker: the anti-plagiarism tool

Anyway, Duplichecker is an interesting tool that avoids Duplicate Content issues before publishing.

The tool works in French, but also in other languages: English, Spanish, German, Russian, Italian, Portuguese, etc. It is also possible to import a text file, in PDF, in Word or other format. Existing pages can be analyzed by entering the URL.

The free version of the tool is nevertheless limited to 1000 words by checking for plagiarism. This is already a very interesting quantity, but which can quickly become restrictive and time-consuming if you write large articles. Premium plans start at $10 per month and allow at least 25,000 words.


2 – Screaming Frog, the all-in-one software to analyze your site

Screaming Frog is a website crawler which will allow you to make very comprehensive auditsin particular to draw conclusions with regard to natural referencing.

There are many crawlers, but Screaming Frog is surely the best known and the most successful of them. The goal is to simulate a crawl of the Google robot to see if the site is well read and that all the signals are good. Duplicate content is of course one of them.

Beyond duplicate content, Screaming Frog allows you to: find broken links, check redirections, analyze metadata and title tags, see URLs blocked by robots.txt, generate sitemaps, see the architecture of the website, and more.

Detect duplicate content with Screaming Frog
Detect duplicate content with Screaming Frog

The free version is sufficient in terms of functionality but may be a bit tight for large sites since it is limited to 500 URLs per crawl.

To get started, you must first download and install the Screaming Frog software. Once in possession of the tool, you must open it and enter the URL of your site in the dark gray bar at the top of the screen. Once the analysis is complete, you will have access to a large amount of data. Click on one of the URLs, and click on the ” Duplicates details ” downstairs. You will see if the pages you select have duplicate content.


3 – Copyscape, the similar text detection site

Copyscape is a tool that uses the same intentions as Duplichecker. However, you cannot insert plain text. Here you have to add the URL of the content to check then Copyscape gives you information about the duplicate content.

The site works much like a search engine. For each URL you enter, Copyscape offers you results from pages that contain similar content.

Check duplicate content with Copyscape
Check duplicate content with Copyscape

To get the full similarity results, you need to upgrade to the premium version.

By clicking on the result link, Copyscape gives you the similarity figures, ie the number of words that stick and the percentage of content.


4 – Kill Duplicate, the plagiarism and duplicate content detector

Kill Duplicate is one of reference tools to fight plagiarism and duplicate content.

To start checking their pages, just subscribe to one of their plan. Unfortunately, there is no free version, which would have been practical, even if very limited. Kill Duplicate offers a demo version on their site to see how the tool actually works. For 100 URLs and 400 scans per month, it costs €22.80 including tax per month.

However, when we see the power and precision of the tool, we immediately understand its price. Once you have done the first scan of your site, you will have a detail for each URL. For each of them, you will actually be able to see the date of the last scan, the date of the next one, the HTTP status of the page, the number of pages that have duplicate content with this URL, the highest rate of similarity and the average similarity rate.

Kill Duplicate: the benchmark tool for analyzing duplicate content
Kill Duplicate: the benchmark tool for analyzing duplicate content

In addition to scanning pages, Kill Duplicate offers you solutions to take. It is possible to contact the duplicating site, contact its host or file a complaint. Once a page has been processed, it appears in the “Resolved” tab.

Finally, the last tab, “report”, summarizes at a glance everything you need to know about your duplicate content. We find the number and percentage of duplicate pagesthe average number of pages that duplicate yours, the domains that duplicate your pages the most, the URLs that duplicate the most in terms of %, the most duplicated URLs, etc…


5 – Siteliner, a free site to analyze the content of your site

To analyze and note the duplication of content present on its site, Siteliner is an effective and free solution. To use it, just enter the URL of your site in the search bar of the Siteliner home page. Then the tool will review all of your pages to send you all the information related to your content duplication.

On the free versionthe number of URLs is limited to 250.

Siteliner: Duplicate Content detection tool
Siteliner: Duplicate Content detection tool

Once the analysis is done, you will have access to general statistics, including your percentage of unique, duplicate and common content. We also have information that goes beyond duplicate content, with average page weight, average loading time, etc.

Clicking on ” Duplicate Content“, you will have the list of the pages concerned. You can sort them by similarity rate, number of pages that match, page authority or number of words that are similar.

Then, by clicking on a URL, you will know where the duplicate content comes from, if it is internal or not, and which passages are concerned. It is important to note that Siteliner is very sensitive to content duplication and that you should not put pressure on yourself for 10 or 15% on this tool.


Why avoid duplicate content?

Obvious reasons to avoid duplicate content are the penalties that Google can inflict on you. In fact, these are quite logical penalties when following Google’s logic. The search engine aims to provide the best response to the user’s query. If 2 answers are similar, the user risks wasting his time. Thereby, Google can penalize you on the positioning of your page in the search results, so that we have less chance of falling on it. It can also go further and de-index the page.

Moreover, beyond the simple SEO issues that this induces, duplicating someone’s content, even if it is freely available on the Internet, is not ethical and respectful.

How does Duplicate Content work?

When Google is faced with 2 pages that contain the same text, it does not play heads or tails to find out which is the original. There are several criteria that come into play at this time to define who will be penalized and who will be “validated”.

First of all, theage of content. It’s obvious, but the content that was published first has a better chance of being recognized as the original.

Then the site popularity. If your site weighs heavily in the eyes of Google, that it trusts it, then you have a much better chance of being recognized as the original author of a content. Of course, we must not “abuse the trust” of Google, it always ends up winning.

You now have in your hands all the necessary tools to avoid making duplicate content on your website. This is really an essential element to put all the chances on your side to break into the search results. If you know of other interesting tools that can detect duplicate content, do not hesitate to share them with us in the comment space below or on our social networks.

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