Why can't Nike official website find JD? COM shoes?

Nike official website doesn't have all his shoes. Only products produced in that year or products just launched last year. The products on JD.COM may have been made a year ago or even two years ago, so there are no products on Nike official website. In addition, some products are produced in small batches and don't need to be sold in official website, or there are no goods in official website, which are the reasons why you can't find them in official website.