How youtube is free and its bussiness modal?

As you all know youtube is free to watch but how?

And why netflix are not?

So I have the answer. Here it is.

Youtube is providing content free because it earns through ads. Yes, the ads you see between the video. Ad company give youtube money to play their ad between videos.

The money that ad company give to youtube, 45% of that youtube keeps and 55% gives to creators. This is why creators are uploading contents on youtube.