lucy24 - 4:55 am on Jan 16, 2012 (gmt 0)

Well, dang and blast. Here I'd already gone and blocked them on robots.txt grounds, before ever consulting the horse's mouth [cobion.com] via their own links.

There we learn among other things:

IBM Proventia Web Filter database categories <snip, snip> • Religion: Includes Web sites with religious content, information about the five main religions, and religious communities that have emerged out of these religions. • Sects: This category contains sites about sects, cults, occultism, Satanism etc.

Tough luck, all you Sikhs, Parsees and Baha'is. Guess you're just cults.