SVG icons vs. PNG icons in modern web sites

Question

I\'m wondering why so few modern web sites still use only PNGs for icons (but this assumption is just based my observation). So far I know, main reasons for using PNGs over SVGs

Answer 1

It's true, png is used almost everywhere. I think it's because the SVG, in the most of cases, is pretty useless, the image should be bigger (i think) and the computer have to regenerate the image whenever you zoom it (because you always zoom the images, don't you?) I think this is the most important reason.