This morning I have copied a post from my own blog and tried to check the result for it from an online free plagiarism checker tool but the result was horrible!! I was shocked!! It was showing 95% unique. Howcome? ?? The post has already been published in my blog and it was a 3 years old post. If you want to see the proof, you can have a look here Results from Online Free Plagiarism Checker Tool.
If you have any suggestion or recommendation, please let me know.