Content Marketing, SEO,
5 Best Duplicate Content Checker tool to Find-out Plagiarism Content on Website
You, as a website owner/manager, know that websites should contain original content. Therefore, you should always aim to ensure that your website’s pages do not contain plagiarized content. Google and other search engines can penalize your site for containing plagiarized content, and that is something you don’t want to happen. This penalty will defeat the purpose of you setting up a website.
There is another possibility, and that is that another site is publishing your content without your permission. Yes, unscrupulous digital marketers do this. They see your website is ranking well and getting good traffic. They will try to overtake you by using your content against you. They might even end up outranking you on search engines.

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.”
Duplicating content (as done above) from another source or e-commerce sites that provide generic product descriptions from suppliers about products are to be anticipated.
It becomes a matter of concern when a number of websites pages host similar content. It affects the website’s ranking and can cause it to vanish from SERPs.
Search engines do not display multiple pages of similar content; they display the website whose pages best match the viewer’s query. Secondly, if inbound links point to several pages that contain duplicate content across a number of sites, the strength of the inbound link dilutes.
There are plenty of choices when it comes to searching for an online plagiarism checker. You can try them as some are free, and others offer a free trial.
The Top 5 Tools That Will Help You Find Duplicate Content on Websites
The easiest way to find duplicate content is to use an online plagiarism checker. There are a number of free plagiarism checker applications available on the internet, and you must select the best plagiarism checker available out there.
The best free plagiarism checker that you will find when you do a ‘duplicate content or plagiarism content check on the internet are:
The top-rated online plagiarism checker listed by a Google query is duplichecker.com. It’s easy to use and free. It provides three plagiarism checking options; you can copy/paste text or upload a file and third, enter the URL of the web page to check.
It does a deep search and provides a comprehensive plagiarism report sheet. If detected plagiarism percentage, unique percentage, and related meaning percentage are displayed. 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.
The next best plagiarism checker is smallseotools.com/plagiarism-checker. The reason for listing it as the second-best plagiarism checker after duplichecker.com is that it offers two options for checking content: copy/paste content or enter the URL of the web page to check. It has a third option, which is an excluded URL. If you want it to skip a URL when searching for plagiarism, you can do that.
In the results report, it displays plagiarism and unique percentage and a sentence wise result. The sentences found plagiarized 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 best free 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.
The fourth free application to check for plagiarism is copyscape.com. It only does search by entering the URL. It does not offer copy/paste text or exclude URL options. It’s very good for website managers who want to check if their URL has content that is similar to the content on other websites. 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 last free online plagiarism checker to be listed here is siteliner.com. Like Copyscape, it only offers plagiarism checking by URL. You enter the URL you want to check, and it will scan all the pages of the URL and check for plagiarism.
The report displays the results of ‘your top issues’ and ‘your pages.’ Under your pages, duplicate content, comparison with other site results are displayed. Click the duplicate content, and in a new tab, the sites containing duplicate content and the percentage is displayed.
Conclusion
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 is using your content without your permission. You can also register and get a DMCA badge. They will charge you for every site that they take down that have copied your content. Displaying this badge on your website will deter scrapers and content copiers.