Cratejoy is built using a fully scalable architecture on top of the Amazon Web Services environment which you can read about here: http://aws.amazon.com/ec2/. AWS is used by companies like Citrix, Adobe, and Netflix, and it is considered an industry leader in stability and scalability.
Cratejoy's database is hosted on the zone-redundant Amazon RDS platform. This means that an internet outage in one area cannot take the database offline.
In addition, the engineering team at Cratejoy is experienced. We built the Zynga Poker HTML5 game as well as the Zynga Bingo game and Zynga slots games. These games received millions of players every single day. No amount of traffic scares us :)
We have been featured on Fox News, NPR and on the New York Times - and have never had so much as a blip in our server performance due to the traffic. You can rest easy knowing that Cratejoy can easily handle the success of your business.
You can always monitor Cratejoy's platform status at: http://status.cratejoy.com/. We suggest you subscribe to this page for updates.