Embodiments of the present application relate to a method for monitoring advertisement displays, a system for monitoring advertisement displays, and a computer program product for monitoring advertisement displays. A method for monitoring advertisement displays is provided. The method includes acquiring advertisement request information in an advertisement request of a page to be monitored. encoding and generating an advertising space view for loading in the to-be-monitored page based on the advertisement request information, acquiring a page view of the to-be-monitored page, dissecting the page view to acquire advertising space display information, and analyzing the advertising space display information to determine whether an advertisement display of the to-be-monitored page is consistent with the advertisement request information.