Credit Card Online Validator - Version 2.11 The software is designed for those who want to verify the validation of a certain Credit Card. The software needs an Internet connection, so it can connect to the remote servers and send them the request of validation. Up to now, 4 majors card types are supported, they are VISA, MasterCard, American Express and Diner Club International. An extra function of the software is to save the information of each Credit Card during your operation.