I was wondering if websites and mobile applications store images on third party websites or just use them as a way of mapping the url to a local server so it is not made public? For example here on stackoverflow I see that the images point to an imgur url, my profile image for example my profile picture.
I ask because I am developing a mobile application and need to store and load images, and I see the option to load images from urls instead of from an own database. If storing images is something possible I am considering it as a goop option to save space on the servers of the app and improve performance.