At BMF.io, instructors can keep an eye on dropout rates through their course dashboard. It shows stuff like how many people signed up, how far they got, and when they stopped. If a bunch of students are dropping off at the same spot, it's a good sign something might need tweaking. You can also see if people are skipping quizzes or spending too little time on certain parts. If you're not sure why folks are leaving, you can ask for feedback straight from them.