As of 2015, you can log into an online Discover Card account by going to the Log In section of DiscoverCard.com and entering your User ID and Password. To access the Discover Card Account Center, you must first register for an account.
An online Discover Card account gives you access to a variety of services, such as viewing your card transaction history, checking the current balance of a Discover Card and paying any outstanding bills online. You can also use the account to download Discover card statements up to seven years old. You can log into an online Discover Card account through either a mobile device or a computer.