Yes, Nettla allows you to set a league as hidden. When hidden, the league will not appear in your public listings — standings, results, and participant information will only be accessible to players who have the direct link.
This is ideal for closed groups running a private league. For example, a company organising an internal padel league exclusively for its employees, or a university running a tennis league only for its students. In these cases, the club or organiser shares the league link directly with the relevant group, keeping it private from the general public.
To enable this, toggle on the hidden option when setting up your league. You can then share the direct link with the relevant participants.