Check the URL: Whenever you are on the checkout page of a website, you should take a look at the URL (the place where the web address goes in); most URLs begin with "http," but when you are shopping on a secure site, the URL should begin with "https." This will notify you that the website uses encryption to scramble your information before it is sent, which means that there will not be any way for hackers or thieves to tap into your information.
Check the "updated" date: Most websites will include the date on which they were last updated; you can usually find this information near the bottom of a page, and if you are about to enter your credit card information on a page you should check to make sure the page has been updated within the last year or two - otherwise, it may no longer be safe!
Use PayPal: Websites for online shopping - including most websites for actual stores - are increasingly opening up their doors to PayPal as a means to pay; when you pay through PayPal, you can be confident in the safety of the transaction, as PayPal (which is secure) will be handling everything.
Online shopping is a great tool, as it enables people to shop a broader selection of items with the convenience of being able to stay at home - and when you follow these tips, you can make sure that online shopping is not only a great tool, but that it is a safe tool as well!