When I look at your homepage, I see you selling me features of your product. I'm not interested in what your product does. I'm interested in what it does for me. Read this post from Dave McClure: http://500hats.typepad.com/500blogs/2009/08/your-solution-is...
Your headline "What are people typing?" is probably not the question they are asking themselves. I'd suspect it's more along the lines of "Are visitors mistyping my URL?" It's a subtle difference, but you're facing the user with the question and making it relevant to them. Your headline is very unspecific and ambiguous.
Your demo let's me compare specific popular domain names, but I'm not sure what I'm suppose to be learning from this demonstration. Your value proposition gets lost and I don't know how this demo provides useful information to me.
I hope my feedback was constructive.
I suppose I'm not 100% decided on which market I'm trying to serve:
1. Site owners interested in users going to the wrong URL.
2. Domain speculators wanting to get data on how many people are typing in a given URL.
3. The common man, wanting some stats on traffic to different domains, whether its for curiosity, reporting, or some academic reason.
I imagine #2 has the most potential for paying customers, #1 the most under-served market, and #3 the largest potential market but probably a low potential for profit.
It looks like you have a really polished product, but I'm not entirely sure on how and why I should use it. I'd expect that information to be the most prominent thing.