Information processing apparatus, information processing method, information processing program, and recording medium

An information processing apparatus comprising:

• at least one memory operable to store program code;
• at least one processor operable to read the program code and operate as instructed by the program code, the program code including:
• registering code configured to cause the at least one processor to, in response to a selection of a transaction object, the transaction object being at least one of an item and a service, by a user on a web page that displays the transaction object, register the transaction object in a reference list, wherein the reference list contains a link to a web page that provides information of each of transaction objects registered in the reference list;
• selecting code configured to cause the at least one processor to, when a predetermined operation relating to a first transaction object is performed by the user, select, as candidates for deletion from the reference list, transaction objects associated with the first transaction object, among the transaction objects registered in the reference list, based on reference list information of the user, which is stored in a storage, the reference list information indicating the transaction objects registered in the reference list;
• and
• controlling code configured to cause the at least one processor to suggest deleting the deletion candidates selected by the selecting code, to the user.