Its made in ARC( <a href="http://en.wikipedia.org/wiki/Arc_(programming_language)" rel="nofollow">http://en.wikipedia.org/wiki/Arc_(programming_language)</a> ) according to this <a href="http://www.ip-adress.com/ip_tracer/news.ycombinator.com" rel="nofollow">http://www.ip-adress.com/ip_tracer/news.ycombinator.com</a> its hosted at Theplanet.com / softlayer.com Not sure what db it runs tho.