Easy to use CTF learn tutorial.
Contains CTF events time schedule, skills that CTFers should learn, challenges provided, and tools and other assistant.
Advantages and disadvantages
CTF hub is a new CTF platform provided to help CTF gamers to train skills and get information of events. It's full of everything that is useful from tutorial to challenges.
The skill tree is under construction and new contents are continuously added to the current components.
CTF hub provides a calendar to check upcoming CTF competitions, subscribe the calendar to find new events.
CTF hub link: https://www.ctfhub.com/