3 Plagiarism Checkers You Can’t Live Without
Duplicate content is always a big issue if you have client sites to manage or run your own site. Before taking over a site over it is beneficial to do a full audit including documenting an inventory of existing content. Sometimes the reason a potential client has a site that does not perform favorably in organic search is duplicate content. They either duplicated the content from other sites or their site was duplicated by other’s. It is better to plan for a potential site rewrite in the beginning then being in shock later. Duplicate content may also appear from multiple pages on your site itself. So it is important to identify and take the proper action plan such as utilizing canonical tags to ensure success of any organic search related effort you are running. To check for duplicate content you have several options. 
Copyscape
Copyscape is the standard when it comes to identifying duplicate content. It offers several free tools for checking as well as paid solutions such as Copyscape Premium and Copysentry. If you have to check your whole site you need the paid version which if the site is small enough will cost you pennies on the dollar. You can also get access to their API which may be very helpful.
Plagspotter
This is one of my personal favorites. Plagspotter has a very clean interface and is very easy to use. Results are very neatly organized and easy to understand for seo professionals, writers, and bloggers. Plagspotter offers site monitoring, batch checks, as well as API access with certain plans. Overall a must have for anyone that is involved with content on the web.
Siteliner
This tool gives a lot of free information before you need to consider any paid solution such as percentage of duplicate content, broken links, and skipped pages for any reason. Siteliner is free for up to 250 pages. Siteliner Premium lets you scan up to 25,000 pages. Siteliner is made by the creators of Copyscape.
No matter how you check your content over, always make sure it has a high level of uniqueness. If you are a blogger or content writer get ideas from other sources for inspiration , but never copy. Some percentage of anything you write will have repetitive terminology, but as long as the percentage is low you shouldn’t have to worry.
