Arranging information describing items within a page maintained in an online system based on an interaction with a link to the page

A computer program product comprising a non-transitory computer readable storage medium having instructions encoded thereon that, when executed by a processor, cause the processor to:

• receive information describing one or more items associated with an entity having a presence on an online system, the information comprising one or more images of each of the one or more items;
• receive a content item to be presented to one or more viewing users of the online system, the content item comprising an image;
• access a trained machine-learning model, the trained machine-learning model trained based at least in part on the information describing the one or more items;
• for at least one target item of the plurality of items associated with the entity, apply the trained machine-learning model to a set of attributes of the content item to predict a probability that the image of the content item contains the target item;
• determine that the image contains the target item based on the predicted probability;
• add, to the content item, a link to a page associated with the target item;
• and
• send the content item comprising the link for display to the one or more viewing users of the online system.