I’ve been using a sites.google profile to keep track of all the anime I’ve watched. It’s where I log my ratings, favorite arcs, and even keep a list of mangaka I follow. I started it after getting tired of forgetting which episode I was on. sites.google profile makes it easy to share with friends who ask for recommendations. Sure, it’s a bit basic—no built-in ranking system or community features—but for a personal catalog, it does the job. I mostly update it after finishing a series, like when I binged Jujutsu Kaisen.