DynuCreditCard is an e-commerce script with all essential utilities to process credit cards. Using this program you would be able to process credit card checksum, predict the type of card and to validate the exact expiration date of the card with date, month and year. Almost all credit cards like discover - novus, visa, en route, carte blanche, mastercard - eurocard, amex, Jcb etc., are supported and can be easily implemented on any existing e-commerce website dealing with online transactions.