squidGuard included URL Blacklist.
This list license is not find, and copyright infomation is not find.
And, Blacklist is contain illegal domain and URL. (I think)
Is this is legal ?
I think that it is illegal, legal problematic.
NOTE: I am not a legal professional.
And I think that this is non-free.
I suggest that resolve legal problem.
It's a list of websites. I doubt such a thing is copyrightable. Also, while the content on those websites might be illegal or morally questionable, we're not distributing the content of those websites, just a list of URLs.