So today I have discovered that lolz.ws is on the filter list on iPrism for pornography/nudity.
Now the last time I checked, lolz.ws has no sort of pornography or nudity which makes this baffling to me. It is simply a service to make short URLs similar to bit.ly and TinyURL.
I have had issues with this domain before. The domain was in the jwSpamSpy spam domain blacklist a few months ago for some odd reason. Since the domain was in there some other web content filters had been blocking the site. I was able to get the blacklist removed for the domain though.
Update 1/27: iPrism has updated the rating of the site to “Internet Service”