Demo is pretty much useless, all that happens when someone clicks on your example links is it shows a password prompt. You're going to have to give a much better teaser of your site if you want anyone to actually register for your site. I'm certainly not going to waste my time registering for a site where I have no idea what it does or how well it does it. There is a reason why sites spend time explaining their products to people. That time is important.
Hey, sorry about that. It was not intentional to put an authorization there. We have removed that. You can now click on example links and get the resulting UI.