In one example aspect, a computerized method includes the step of providing an item listing. The item listing is listed in an e-commerce marketplace. The computerized method includes the step of identifying the item listing into a set of listing parameters. A listing parameter includes one or more listing images and one or more terms that are descriptive of the item listing. The computerized method includes using the listing parameters to do the following steps. The computerized method determines a trust score for the item listing. The trust score is based on a number of images of an item in the item listing. The computerized method a quality score of the number of images; a description score of a description of the item. The computerized method determines a pricing score. The pricing score is based on a percentage variation from a geographically relevant item valuation and an item research service, and a condition of the item. The computerized method determines a seller score. The seller score is based on the verified status of the seller, a seller rating of the seller, and a percentage of positive feedback. The computerized method determines a health score. The health score is based on a seller declaration, a service logs, a verification that the item is insured, and a verification that the item properly registered.