How to find out if this is a normal svg icon or not?

Question

css

They asked to fix the logo, as it is blurry on the mobile version. Said you need St. FTP already has an SVG icon, but it seems to me that it’s just that they changed the format from PNG to SVG, because. she is also fuzzy. How to figure out if this is a normal SVG icon or a bad one?
Here is png tpvcrumb.ru/images/logo_promotion.png
Here is svg tpvcrumb.ru/images/logo_promotion.svg

Answer 1

Open the svg file in a text editor or browser with source code view and you will see that inside is image data:image/png, i.e. png image.