Google, Bing, Yahoo! and many other search engines have become the go-to place when looking for something specific or wanting to learn more about any given topic.
Your checkout/shipping experience may be one of the top reasons why your conversion rates are low. Customers want to complete their order quickly, easily, and with as little stress as possible; even a tiny hitch in the process can result in them abandoning their cart and not coming back to complete the purchase.
