When you open your own card while signed in to your account, the visit is not recorded.
This is on purpose. Most creators check their own card several times a day, and counting that would make the number that matters — how many other people came — impossible to read.
If you open your card signed out, in a private window or on another device, that visit does count. It is a real visit from the system's point of view, because it cannot tell it is you.