In Web Filter->Site Lookup I entered "http://huwelijksreiscenter.be" and it reported it as "Travel". It's not, it's phishing site. (google blocks it as phishing as well)

So I clicked "Suggest new category" and selected "Phishing/Fraud" and it responded:
category.JPG
Thinking I'd just mis-clicked, I tried several more times and it always did the same thing.