Unfortunately for us, each social media network has its own ideal image size when posting photos, or uploading profile and cover photos - and then, these same images may display differently on desktop vs mobile! Below I've outlined minimum required image sizes/dimensions for the most common platforms.
I've been questioned on this practice lately, people wondering why I would worry about who is unfollowing my business accounts on certain networks. It's not about vanity, it's not about making my follower/following "ratio" look awesome. Social numbers are nice, but they don't make a successful business. I have a damn good reason for tracking unfollowers and here it is!