In the example above, the web server engaged in session management maintains your login or shopping cart items - in other words, your individual session on their website. There are also different cookies for different purposes. With that information, the web server can deliver more personalized experiences, such as maintaining an active login or items in a shopping cart. When the web server receives this request, it sees the cookie it sent previously and remembers you’ve already visited. Here, your browser sends another request to the web server and the cookie it was originally given. Now let’s say you click on a link to another page on the website, such as “Shop” or “About Us” on an ecommerce site. The browser requests another page from the same server.As we mentioned earlier, this cookie almost always includes a personal identifier for you and your browser. Upon receiving your request, the web server sends back the requested page and a cookie containing certain information. The web server sends the page and the cookie.This request is sent to the web server that hosts the website and its pages. When you enter an address (e.g., a domain URL such as “”) into your browser’s address bar or click on a web link, your browser generates an HTTP request that tells the website that it wants to view the page. How websites send HTTP cookies to users’ web browsersĪs shown in the image above, the exchange can be broken down into three steps: Let’s take a closer look at how this cookie exchange works (spoiler alert: there aren’t any charming wicker baskets or girl scouts involved). This identifier allows the website to “remember” if you’ve already visited the page. In addition to information about the website itself and the page you’ve visited, cookies include a personal identifier tied to you and your browser. Whenever you visit a website, there’s a good chance that the website will ask you to store cookies with your browser. As we’ll see shortly, visitors love a few cookies - but any more than what they need will make them feel sluggish and bloated. However, just like actual cookies, you don’t want to serve too many HTTP cookies. While not very tasty, they’re extremely useful for allowing websites to “remember” users the next time they visit. Unlike our favorite baked treats, HTTP cookies are little packets of data that websites send to users’ browsers. When we’re talking about cookie-free domains, we’re of course referring to HTTP cookies. Cookie-free domains are parts of a website that don’t send cookies to users’ browsers.īut why not send cookies all the time? After all, wouldn’t it be polite to give users as many cookies as possible?
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