Very nicely presented. My credit card page and code have been top search result for years - it's about time someone improved upon it! Thanks.

http://www.darkcoding.net/credit-card-numbers/ http://www.darkcoding.net/credit-card-generator/

If the code on darkcoding helped you build your project (we have the exact same card issuers), could you give attribution?

It would also be very cool if you open-sourced that site. The code on darkcoding is GPL, not AGPL, so you're not required to. Would still be cool of you :-)