Dear researchers,
The program is back open.
Please take notice of this Subdomain Takeover description that has been put now in the in-scope section :
If a certain subdomain seems to be vulnerable to subdomain takeover, we want to know this but we ask to not take over the corresponding subdomain itself. Make sure you give a proper explanation on how to take this over and which service is responsible for this.
Happy hunting!
The Digital Flanders security team

Dear researchers,
As of now, we have set bounties for part of our program.
Please check this out in our program update.
Happy hunting!
The Digital Flanders security team