Verifying user information

A computer is configured to impose an access restriction based upon user-provided information, such as a user's birthdate. In order to enforce such a restriction, the computer requests from a user an image of a valid identity document associated with the user, such as a valid driver's license. In response to receiving such an image from the user, the computer performs an image analysis on the image to extract user information. The computer might extract the user's name, address, birthdate, driver's license number, and/or other information from the image for instance. The computer may utilize the extracted information to determine whether the user should be granted access. The computer may determine based upon the extracted information, for instance, whether the age of the user is greater than a minimum age required to access the computer. The computer may be configured to restrict access to a Web site in this manner.