It could be seen as a act of terrorism. Also the JTF would also be shut-down as it has alot of hate speech witch under European law is bad!
I wouldn't recommend making a site that prompts a military wing, Nor one that demises a group. If the site promotes a understanding of Judaism or Zionism it would be great! And there's nothing the government could do.
understaningzionism.blogspot.com for example.