Ngrok is active or idle

Hello, I wonder if I can see the ngrok activity for a certain local site. I found that navigating Localsites/mysite/logs/apache, the access.log contain ngrok access, and if the file is modified I understand that it is having any update. So I guess other people are navigating the site, but I’m not sure. Anyway, it would be great to see in a better way if the site is being accesed from outside, or it is idle.
Many thanks!