All advertisement media is gathered and permanently kept in the database. AdKontrol offers all needed manipulation tools to keep the database up-to date.
Advertisement database
One particulary interesting advertisement database feature is advertisement expiration date that you can set via tagging UI. When advertisement expires, it won't be detected and shown in reports any more, but will still be present in the database for use in historic reporting. When you have seasonal advertisement, you will be able to automatically remove advertisements so to avoid cluttering the database needlesly.