For each competitor, collects 

• the various product identifiers available (EAN, Customer Id, SKU, etc.)
• the brand, categories, classifications, characteristics and sensitivity to which the product belongs
• crossed out price catalogue price and the selling price (normal or discounted with their units) extracted from the crawled web page or a PDF file
• shipping costs if indicated on the crawled web page
• the positioning of each brand in relation to a reference price of your product availability in stock
• limited quantities and possible dates of validity
• an impresion of the image-product the url of the site on which this product is present reviews
• review notes