So I'm working on a site and I managed to change the images used for my social icons, but it took all night for the changes to take effect. I spent hours changing and re-changing because I thought I was doing something wrong when I refreshed my browser and nothing happened.
Well when I got up this morning and went to start playing around with it again, I noticed that the images did indeed change. My question is, why does it take so long? And is there a way I can speed up the process?