How to recognize duplicate content? (tools and tips)

 If you are a content expert , webmaster , or SEO expert , you must know that your website must have non-copy and so-called unique content.

The presence of duplicate content on the site, especially on non-Persian sites where Google's algorithms operate more strongly, can give a big blow to your brand and credibility and affect your site's ranking in a short time.

On the other hand, stealing other people's content without mentioning the source is not ethically acceptable, and in this regard, Google will punish you in a way by reducing the credibility of the content and the site under the main keywords, because with this, you will not be able to increase your click rate. Improve the optimal form and your content production will be almost ineffective.

On the other hand, people may, for any reason, copy the content of your site and use it in their blog or website, and apart from creating a copy content on the web (if they have a stronger domain), they can get better results from you. And practically waste your efforts

?Do you have enough information about these points to top the search results

Apart from the above, you, as an employer, may have entrusted the production of your site content to another person or group, and this company (for any reason) will produce your content with the least obsession and use copy content. What is the task now?

How can you know the truth?

The sum of the conversations we've had so far has prompted me to write in detail in this article about content that is copied, duplicated, stolen! And... to talk to you andI will introduce you some tricks and tools so that you can safely monitor your content , be aware of your competitors' activities, or  check your content team's activities if needed.

So stay with me in the rest of the article.

Definition of duplicate content

Duplicate content is content that has been used in more than one website or blog. So, if your content is placed in more than one domain, according to the standards, it will be placed in the category of duplicate content , and no matter how numerous this issue is or if the domain of other sites is stronger than yours, it can significantly affect your site.

Google and other search engines are looking for the best, most complete, most authentic and most recent content for the user, so copy content can actually reduce your chances of being seen on the search results page (SERP) by violating these terms. .

Reasons for copying content

In many cases, the use of duplicate content is not intentional, but authors use pieces of content as a supplement to other content that may be "exactly" the same in different domains.

Examples of non-destructive duplicate content include store product descriptions.

But the direct and intentional copying of content is another issue that we see on the Persian web, and the reason for this, as mentioned, is manipulation of search engine rankings, devaluing unique content, or creating external links (in a wrong way). . In short, getting the same content in several different places is not a pleasant thing, and the search engine will do its best to trivialize or remove this content (at least from the first page).

Use Google to detect duplicate content!

Using Google is a fast and reliable way to check for duplicate content. For this, you can put any part of the content that you are suspicious about inside the quote """ and search for it.

If websites other than yours have used this content, you can be sure that the content is a copy.

Note: Of course, this topic can also appear unintentionally in your content, or it can only be focused on the same few lines. In these cases, it is recommended to update that part of the content.

In the world of SEO, we all try to leave our fingerprints and erase our footprints. Especially in the off - page

discussion, one of the ways to improve external linking and especially reports is to use the author's fingerprint.

For this, it is enough to use a part of your site's content that you have used several times in the same field or a specific content in your report with a distinctive color, in the limit of several lines and at a distance from the body of the content. (note that this content must be unique, contain keywords related to your main context and have been used in your valid content in the past)

This issue can be reported not as a duplicate content but as a valuable and useful fingerprint. give you credit

Free tools to check for duplicate content

When you're writing new content in a niche, you might want to make your content similar to your previous content. So that this problem does not occur or others do not give you copy content, you can use the set of free tools that we will introduce below:

Link Building


This tool can check your content against other content as quickly as possible. This comparison tool highlights content it identifies as duplicate content and lets you know what percentage of your content matches pre-published content.


This tool can identify duplicate pages of website content very well. Plagspotter is a great tool for finding plagiarism and also allows you to automatically monitor URLs on a weekly basis and identify duplicate content.


This tool quickly checks the authenticity of the content you plan to upload to your site. Users who register on this website can make up to 50 searches per day.


Siteliner is a great tool that can scan your entire site for duplicate content once a month. It can also check for broken links and identify and recommend pages that are most important to search engines. But if you want more information about your website and its content, among the countless premium services, I recommend narrowing down your choices to the following: 

Premium tools to check for duplicate content

The only obvious difference between premium tools and free tools is that these tools use more advanced algorithms to identify duplicate content. These tools prove the authenticity of your content by providing a report of your content in a completely guaranteed way and provide you with interesting reports in pdf format .

The best premium tools include grammarly, plagium and plagiarismchek .

Note: Some domestic sites that provide SEO and digital marketing analysis tools also sell subscriptions for these tools, so don't worry about the methods of buying these tools from inside Iran.

?Has my content been copied 

As mentioned, the above tools make it very easy for you to check your content and other competitors.

One of the reasons for checking the contents of the site is that some sites deliberately and often by robots copy your content without any changes as soon as it is uploaded on the site and load it inside their website, and practically to your content which is definitely for it. You have worked hard or spent money, they will hit you.

Finding ways to steal content

Apart from the use of the above tools that we have discussed in detail, if you use WordPress as a content management system, using the askimet plugin that is installed by default on WordPress can protect you from the spam that these bots usually send in Find your content commented.

It is interesting to know that since June 14, 2013, this plugin has been able to identify more than 83 billion spam comments, thus buying a good amount of time for webmasters.

You can also use the website manager tools and check your site's links. When you have a lot of links from a particular site, you may find that some of your content is being redirected to them.The only way to be sure of this is to visit their site and check the pages that link to your site. So you may be able to find your exact content on these websites. Also, use Google alerts if any of your post titles appear on another site's search results page (SERP) after your content is published.

You can also access the site management through their contact form or through any of the social networks in which they are active. If their site is linked to your site and is also of high quality, give them the option to keep your content while crediting you as the author and backlinking to your site, another option is to offer to write a modified article in exchange for a link. But if the site is of low quality, tell them that you want your content to be removed immediately.

Tip: If there is no specific way to contact the website owner, do a Whois search . If you still can't find out who owns the site, you can find out who is hosting it using the free tool Whoishostingthis . Contact the hosting company and let them know that the website owner is posting copyrighted content. Hosting companies generally take this type of complaint seriously and follow up on it.

Protect your content with DMAC

One way to protect your website content is to place a DMCA mark on your site. In this way, if your content is published on another website while it has the DMAC logo under it, this content will be removed from the destination site without any cost.

The DMCA mark is a protective seal placed on your website that prevents thieves from stealing your content. With a registered badge you will have access to tools, resources and support.


In this article from the Amange SEO training series , I tried to   teach you the best methods, tools and tricks to identify copied or stolen content. The reason for the importance of this issue is the high sensitivity of the Google search engine on unique content. So, I recommend you to randomly check your strong content from time to time and be aware of its authenticity, or if you have outsourced your content production, use these methods to ensure the authenticity of your content.


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