A cookie is a small text file which the website you visit saves on your computer.
Cookies are used on many websites to give visitors access to various functions. You can use the information in the cookie to track how users surf.

According to the Electronic Communications Act, anyone who visits a website with cookies, shall be informed that the website contains cookies and the purpose and use of those cookies. The visitor should also give its consent to the use of cookies.

Source: Swedish National Post and Telecom Agency