A imprint is a list of contact details
The word imprint dates from the Greek era and then meant closing piece, a imprint of a book or other publication is therefore usually in the back. In the imprint of a book there is the year of publication, who is the publisher, where it is located, what is used for paper, etc. It is a list of some important contact details. Also, websites often have a imprint stating how one can contact the creators of the website.