@Moon @000a @a1ba i can assume gif is animated because vast majority of people use gif only for animated images. Yes, gif can be not animated but that's an outlier. Transparency does not matter for my case. I just find it extremely annoying that there's is NO WAY to get ANY information about an image even if it came from "trusted" source, browser obviously knows that it need to animate an image or not but there's no API exposed for it.