Hi,
If you offer free service,that can be seller. I wonder if it's gonna remain free or you'll charge for your service later on?
The page is ok, although I'd redesign the header a little bit. The picture on the keyslot box would fit better for your logo than the robot I think. I like that keybox...
Besides, build trust around your service. You know, even if it's free, people might try and than buy a certificate from VeriSign for e.g. I'd advertise it somehow like Free Certificate, tell more about your team, collect some references. It's a business all about trust and knowledge. You need to make webmasters trust your security service and be able to build on it.
You made me worry about my sites. I have a deal: you secure my sites and I offer free ad on a heavily visited page - both sides for free. Drop me a mail to
info@traceyourhistory.com if interested. We'll discuss terms than.
Cheers,