Next to your likes and comments of each footprint you will find an eye icon with a number next to it, indicating how many people have seen the footprint post.
If the number is not displayed, it means that nobody but you has seen the post.
Please be aware that if you or a fellow traveler sees a footprint posted by yourself, it does not count as a view.
Also please be aware, that returning visitors will be counted again after 2 weeks time. So the number of visitors can exceed the number of your followers.