5 Best Duplicate Content Checker Tools to Find Plagiarized Content on Your Website
January 22, 2020
Sarvesh Bagla
As a website owner, you must use a duplicate content checker because your web pages should not contain plagiarized content. Google and other search engines can penalize your site for plagiarized content. This penalty will negatively affect all your ranking on search results and content marketing strategies you may plan to implement.
The other scenario can be that another site is copying and publishing your content without your permission. Unscrupulous marketers participate in these activities when they see your website is ranking well and getting good traffic. They will try to use your content to rank on the same topics and keywords. In some cases, they might even end up outranking you on search engines. Using a duplicate content checker, you can analyze your competitors’ content, learn which blocks of content they have copied and take action.

What is the Definition of Duplicate Content?
Google Search Console Help Centre states, “Duplicate content refers to substantive blocks of content within or across domains. That either completely matches other content or are appreciably similar.”
Adding content (as we did above) from another source to write a definition or state a quote is a form of non-malicious duplication. This also applies to e-commerce sites that provide generic product descriptions from suppliers.
It becomes a matter of concern when this practice is done maliciously or a number of website pages host similar content. It affects the rankings of your web pages and can cause them to vanish from SERPs.
Why Search Engines Don’t Like Duplicate Content:
Search engines do not display multiple pages of similar content; they display the website whose pages best match the viewer’s query. Duplicate content means that the content is identical in multiple locations or URLs. If the duplicacy issue persists, search engines do not know which page they should rank on SERPs. This can hurt or tank your rankings and even invite penalties from search engines.
You can resolve this issue by using a content duplicacy checker. However, there are plenty of choices when it comes to choosing an online plagiarism checker.
The Top 5 Tools That Will Help You Check Duplicate Content on Your Website
The top-rated online plagiarism checker listed by a Google query is duplichecker.com. It’s easy to use and has a free version. It provides three plagiarism checking options; you can copy/paste text, upload a file, or enter the URL of the web page to check. It does a deep search and provides a comprehensive plagiarism report sheet.

Source: duplichecker.com
If detected, plagiarism percentage, unique percentage, and related meaning percentage are displayed in the results. The content to check is displayed in the left column, and the sites with similar content are displayed in the right column. You can also print the results report.

Source: duplichecker.com
The next best plagiarism checker is smallseotools.com/plagiarism-checker. One thing that’s unique about Smallseotools is that it allows the option of excluding an URL from the plagiarism report. If you want it to skip a URL when searching for plagiarism, you can do that.
The results report displays plagiarism, a unique percentage, and a sentence-wise result. The sentences found plagiarized are red-flagged, and there is a compare button. Click on it, and it will display the site that contains the same sentence. You can also print the report.
The third online plagiarism checker is plagiarismdetector.net. This also gives you the option to copy/paste text, exclude URL, and Check by URL. The results presented have unique and plagiarism percentage indicators. The entered text is displayed in the left column, and plagiarized content sentences are highlighted in red. In the right column, the plagiarized sources are displayed. You can download the report.
Copyscape.com. is considered one of the most viable and successful plagiarism detection tools. It has a straightforward interface where you can copy and paste the content to get the report.

Source: copyscape.com
The results report displays the content and websites that have similar content. Click on any of the URLs, and a detailed report with sentences highlighted in red of the copied content is displayed in another tab on your browser.
The online plagiarism checker on this list is siteliner.com. Siteliner enables you to check the website for duplicate content by adding the website URL. The tool scans all the pages and checks for plagiarism.
The report displays the results of ‘your top issues’ and ‘your pages.’ Under your pages, duplicate content and comparison with other site results are displayed.

Source: siteliner.com
Click the duplicate content, and in a new tab, the sites containing duplicate content and the percentage are displayed.
Now that you have an idea of the best duplicate content checkers, what are some significant advantages of using a plagiarism checker?
Additional Read: Content Marketing Tools
The Advantages of Duplicate Content Checkers:
Identify and minimize plagiarism:
Using a plagiarism checker to check duplicate content helps you identify and minimize different forms of plagiarism, including:
- Paraphrased Plagiarism
- Accidental Plagiarism
- Complete Plagiarism
Find competitors that are using/copying your content:
Running an audit for checking duplicate content helps you find competitors who have copied your content. After making the report and highlighting the issues, you can report it to Google and get the pages blacklisted, and direct the quality traffic to your web pages.
Optimize duplicated pages:
Duplication with internal web pages is a challenge that many businesses and marketers face. Whether it is accidental plagiarism or deliberate, you can identify the copied content and make strategies to resolve it.
How to Use a Duplicate Content Checker Efficiently?
You should do a routine check for duplicate content if you want to be sure that your content is not being stolen, scraped, or duplicated.
Most duplication issues that exist on the website can be fixed. For external duplication issues, you can get in touch with the site/s that are using your content without your permission. You can also register and get a DMCA badge. They will charge you for every site they take down that has copied your content. Also, displaying this badge on your website will deter scrapers and content copiers.
Conclusion
This post successfully outlined the best duplicate content checkers available, along with the best practices and advantages of using them.
If you need assistance in resolving content duplication issues and revamping your content, connect with us to get a proper consultation.