One very good use case of link shorteners is marketing & sales campaigns. A lot of marketing companies like to share short and branded custom links on social media and later check the click and other stats to see the conversion rate.
I have also seen companies using URL shorteners for internal link sharing.
I have two real cases where my project is used are:
- One of the schools in Spain uses the project website(pygy.co) for creating secret links and sharing with students in school competitions. They share the password with the winners(I received an email from them). - One of the company is China has forked the project and are using it.
Anyhow, I created this as a personal project for learning purpose but I can see it's use cases.