It’s supposed to look genuine, but it’s really not. My mission with this site is to lure fundies into it with a genuine-looking site, only for them to find out later as they get deeper into it that it is actually an Atheist site. I admit that it is a very subtle spoof, but I have left some clues and some dead giveaways on the site. For instance, check out this article:
http://www.apologeticsforjesus.com/christianity.htm
I think I do a pretty good job of ridiculing the Christian story in that article. The article on Jesus that I wrote is pretty much meant as subtle satire. The same with the page on God. But, yes, the front page and the blog do appear to be genuinely Christian - just as planned. 
I was a devout fundie for 15 years of my life. I still know how to sound like one, though writing and posting the religious bullshit has been somewhat painful - not just in terms of memories brought back, but in terms of how ridiculous what I am saying is, but fundies think it’s the TRUTH!