Istuntoevästeitä

Istuntoevästeitä, also known as session cookies, are temporary text files that websites use to store information about a user's current visit. Unlike persistent cookies that remain on a user's device for a set period, session cookies are automatically deleted when the web browser is closed. Their primary function is to maintain state information during a user's navigation through a website.

When a user visits a website that employs session cookies, a unique identifier is generated and stored in the cookie on their browser. This identifier allows the website to recognize the user as they move from page to page within the same session. For example, session cookies are crucial for e-commerce sites to keep track of items added to a shopping cart. Without them, the cart would empty every time a user navigated to a new product page.

Session cookies also play a vital role in user authentication. After a user logs in, a session cookie can be used to keep them logged in as they browse different sections of the website, preventing the need to re-enter their credentials on every page. They can also be used to remember user preferences for the duration of their visit, such as language settings or display options.

The use of session cookies is generally considered a standard and necessary practice for many website functionalities. They enhance user experience by providing a seamless and continuous interaction with the site. However, as they are temporary, they do not pose the same long-term privacy concerns as persistent cookies.