The FAQ link in the top right is yellow on gray. That's hard to read. IMHO the FAQ contains the most information.

One course (or kOrs) is 'interactive'. I first thought that meant online-only.

The contact form is pre-filled (placeholder) with an USA-style phone number. I think it makes sense to use the Dutch number format.

I didn't learn anything about the instructor. What qualifies the instructors?