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Test 2010: S10-09 Copyscape Premium

Software Profile | Testoverview | Summary| Screenshots | Business Promotion | Links

Software Profile

ID S10-09
Product Copyscape Premium
Company Indigo Stream Technologies co-founded by Gideon Greenspan
Web Site
Software Type Online
Costs 5c per search
Test Date 2010-07-26


Ranking for all tests: 12
Ranking for tests 10-40: 12
Ranking for tests 31-40: 1
Usability: 7
Professionalism 9
Middle Ranking 8,2
Effectiveness (Grade): D+
Overall Ranking: 8

barely useful


Copyscape Premium: This system took first place in effectiveness in 2008, but is only on place 7 this time. It was, however, best at finding the new, English-language test cases. It often reported no plagiarism for test cases that it found completely on the last test, something that we observed with many other systems. This is perhaps due to changes in the Google API, or to certain search engine “optimizations” that many companies attempt and which might taint the results. We did not see a method for printing of the report, beyond printing the results page. You have to click on the heading for a result in order to see the page marked up with matching text. You can switch between the markup on the original and the found source, but there is no side-by-side report. They now offer a daily or weekly check for plagiarism of a page, something that is useful for people needing to protect their online intellectual property, but not for university use. There is at least now the possibility of batch uploading of files.

Company Statement

“Copyscape is designed primarily for content owners who wish to continually monitor and identify new instances of web sites that have stolen or copied their online content, and for this purpose it performs well (tied for first place in identifying recent English language content) according to your tests. ”


Screenshot 1: 2008, the plagiarism was detected here – now nothing found

Screenshot 2: Result Page

Screenshot 3: We don’t know whether something was found or not

Screenshot 4: List of results

Business Promotion

“Copyscape is dedicated to protecting your valuable content online. We provide the world’s most powerful and most popular online plagiarism detection solutions, ranked #1 by independent tests. Copyscape’s products are trusted by millions of website owners worldwide to check the originality of their new content, prevent duplicate content, and search for copies of existing content online.”


official website