Abstract: A method including determining a zip code of a user using a website that displays items for sale. Determining the zip code of the user can include determining the zip code of the user through at least one of using tracking cookies for the user using the website or geo-sniffing a current session of the user using the website. The method also can include receiving a selection by the user to display information about an item of the items for sale. The method additionally can include determining a shipping speed to display to the user for the item based on (a) a geo-classification for the item, (b) a list of fulfillment nodes that can currently deliver to the zip code of the user within a first shipping speed, and (c) a node-level inventory for the item. The method further can include facilitating a display of the shipping speed to the user. The geo-classification for the item is a first classification at least when a sale margin for the item exceeds a first predetermined margin threshold.

Abstract: A method including determining a zip code of a user using a website that displays items. The method also can include receiving a selection by the user to display information about an item of the items. The method additionally can include retrieving first information including a predetermined geo-classification for the item. The method further can include retrieving second information including a list of fulfillment nodes that can currently deliver to the zip code of the user within a first shipping speed via ground shipping. The method additionally can include retrieving third information including a node-level inventory for the item. The method further can include determining a shipping speed to display to the user for the item based on (a) the predetermined geo-classification for the item, (b) the list of fulfillment nodes that can currently deliver to the zip code of the user within the first shipping speed, and (c) the node-level inventory for the item.

Abstract: A method including determining a zip code of a user using a website that displays items. The method also can include receiving a selection by the user to display information about an item of the items. The method additionally can include retrieving first information including a predetermined geo-classification for the item. The method further can include retrieving second information including a list of fulfillment nodes that can currently deliver to the zip code of the user within a first shipping speed via ground shipping. The method additionally can include retrieving third information including a node-level inventory for the item. The method further can include determining a shipping speed to display to the user for the item based on (a) the predetermined geo-classification for the item, (b) the list of fulfillment nodes that can currently deliver to the zip code of the user within the first shipping speed, and (c) the node-level inventory for the item.

Abstract: A method including generating a first list of fulfillment nodes of fulfillment nodes that are enabled to deliver within a first shipping time period. The method also can include sending each fulfillment node to a separate instance of a multi-threaded worker system. The method additionally can include generating a list of zip codes that the input fulfillment node can deliver to via ground shipping within the first shipping time period. The method additionally can include transforming the lists of zip codes to generate a mapping from each zip code in the lists of zip codes to a list of fulfillment nodes of the fulfillment nodes that can deliver via ground shipping to the each zip code within the first shipping speed. The method additionally can include receiving a request including an input zip code and an input shipping time period.