A computerized method of detecting product description inconsistencies, comprising receiving from a seller a product description comprising one or more attributes of a product offered for sale on an online marketplace arena, extracting automatically the one or more attributes by analyzing the product description using one or more language analysis tool, analyzing automatically the one or more attributes compared to a plurality of attributes of one or more other products of a same class as the product to detect one or more inconsistencies of the product description with respect to the one or more attributes and outputting the at least one inconsistency.