NB: You may only use Plagiarism Checker to scan documents for which you hold intellectual property.
Our free plagiarism checker makes use of the Yahoo Boss API. It is currently in BETA and we have had to limit the number of API requests available on any one day to cope with the demand and resulting cost. We therefore apologise that the plagiarism checker is not available 24/7 and sometimes does not produce the expected results. Feedback on the results that the plagiarism checker provides is welcome and can be made to firstname.lastname@example.org.