Denied access

In a spat of procrastination this morning at work, I was clicking through some random links and our company's content filter didn't like a link I tried to go to. I've gotten access denied messages before, but they are usually based on sexual content in the page I tried to go to. Not that I'm like purposely seeking out porn at work, I usually can't tell the page will be blocked just based on its URL. Anyway, this time I got a different reason for being blocked, one I'd not seen before:

Your request was denied because of its content categorization: "Tasteless".

Content filters can actually judge the tastelessness of websites? Or sites purposely categorize themselves as such? Either way I felt almost offended for being told by the filter that I was trying to access some crappy, sleazy site. I just need to remember to check it out when I get home.