[Daiz]

Lossless compression means the pixels of the output image are 100% identical to that of the output image.

This site is clearly not doing that, and should thus not be called "lossless compression". The industry term for lossy compression that appears to be basically the same as the source is "visually transparent" or just "transparent". Though this doesn't seem like that either, especially when you're compressing large PNGs into JPGs while naming the output as PNGs. That's just outright deceitful, and not a good look.

[iambavith]

judging by the response we got , we will update site to reflect on “nearly lossless” approach than calling it “lossless” then We don’t mean to be deceitful.