It's literally the Hinduism.SE site, hosted by a third-party. I encourage you to poke around: all the links work, it's clickable, and it's basically a duplicate site. I don't know what SE's policy is about licensing and content, but it seems to me that it's plagiarism. (It loads pretty slowly, though)
Does anyone else know what it is? Is it supposed to be there, is it okay, or is it violating some sort of rule? Am I making a big deal out of nothing?