Shop with well-known companies. Some vendors may take weeks to fill orders or respond to problems. Companies have 30 days to ship. It's easier to return items if you don't have to ship them. Learn the company's privacy policy.
Some firms sell information about their customers.
Make sure the purchase information, especially the credit- card number, is encrypted by the Web site. Web sites clearly should indicate whether they are secure. Never provide financial information unless making a purchase. That's a good sign the site is handling your information securely. Know the merchant's return policy, especially who must pay for return shipping.