Plagiarism is often checked on research papers where the content needs to be unique and 'not borrowed or copied'.
Plagiarism defines the amount of stuff that you have referred to write whatever you have written.
Ideally, I would not say 0% plagiarism is possible since you need to have a few references if you want to write a genuine article but you never know.
Could someone recommend a website or an app which can accurately check the plagiarism percentage?