Is the cheetah an inbred animal/species?

Well I love animals, and knowing a lot about them. So one day I came across the cheetah and looked it up in a video. A comment under the video said that cheetahs were inbred animals. I found this new to me since no one ever mentioned it before or had I heard about on TV. So I was wondering.. can someone get me some proof to specify if it is inbred or if that was a false statement?