While the majority of the site can run on 50 servers,eBay has four times that.The 200 servers are housed in sets of 50 in four locations,all in the United States. When youre using eBay, you may be talking to any one of those locations at any time-they all store the same data. If one of the systems crashes. there are three others to pick up the slack.
When youre on the eBay Web site and you click on a listing for a Persian rug, your computer talks to Web servers, which talk to application servers, which pull data from storage servers so you can find out what the latest bid price is and how much time is left in the auction. eBay has local partners in many countries who deliver eBays static data to cut down on download time, and there are monitoring systems in 45 cities around the world that constantly scan for problems in the network.
Using eBay: Security
In order to make buyers feel safer when making purchases on eBay, all tangible items are automatically insured for $200. A recipe that was supposed to be delivered to you via e-mail is not considered a tangible item.But if you purchased a set of speakers that never arrived, and you go through the dispute process and eBay determines you were defrauded , you can get your money back up to $200.
Buyer Fraud
Buyer fraud is typically less damaging than seller fraud. The most common type of fraud a buyer can commit is simply not paying for an item. Sellers can deal with non-paying bidders by filing an Unpaid Item dispute. eBay will then attempt to contact the buyer and get her to pay. If she does not respond to eBays attempts after eight days, the seller is reimbursed for eBays cut of the final sale price and can relist the item for free. If the buyer does respond, the dispute can end in one of three ways:
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