Definition: Cookies (also referred to as HTTP cookies or browser cookies) are small text files stored in a web user's browser directory or data folder. Ecommerce websites place cookies on visitors' browsers to retain login credentials, identify customers, and provide a customized shopping experience.
• Customer log-in
• Persistent shopping carts
• Wish lists
• Product recommendations
• Custom user interfaces (i.e. "Welcome back, Steve")
• Retaining customer address and payment information
Cookies can be divided into two major categories, with many subsets of:
When a user lands on an ecommerce website for the first time, the webpage makes a record of the activity on its remote server and it places a cookie in the user's browser files. The cookie is only a short line of text. It contains no information about the user or the user's machine. Instead, it typically contains the URL of the website that placed the cookie, a unique generated number and an expiration date for the cookie.
As the user browses the website, each new page the user visits queries the browser, looking for the cookie. If the cookie's URL matches the website's URL, the website retrieves the user information from its server by utilizing the unique generated number. In this way, the website adjusts the user's experience to reflect her browsing history.
If the user searches the site for cowboy boots, then the next time the user comes to the site, the website will retrieve the user's record and fill the landing page with more cowboy boots.
The single most important job of a cookie is to keep a user logged in as they browse from page to page. A user's browsing history becomes part of a database which the website then uses to improve the customer experience.
Ecommerce sites use a combination of session cookies and persistent cookies to create a seamless shopping cart experience. As the user adds items to her cart, session cookies keep track of the items. If the user abandons the cart, persistent cookies will retrieve her selections from the database the next time she visits, or allow you to create personalized retargeting campaigns that encourage her to revisit her cart. This is a huge help in encouraging conversions.
Cookies are an essential part of the Internet. Without them, webpages would be a great deal less useful and interactive. Ecommerce would be impossible. They give websites the ability to remember and improve.
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