Cookies are short text files created by a web server and stored on a computer via a browser. When you later return to the same website, the browser sends the stored cookie back and the server retrieves all the information it has previously stored with you.
The principle of cookies allows you to differentiate individual users and store specific data about them. E.g. Thanks to the cookie, the relevant server knows what language setting you chose during your last visit or what your login name should be pre-filled in the form (it remembers it from your last visit). Various statistics and other measuring systems also work on the principle of cookies, which store the visitor's identifier, the time and source of the visit and other information in the cookie. Cookies are also used to store confirmation that the user is logged in (eg to the e-shop, administration, social network, etc.). Here we are talking about the so-called authentication cookie. Without it, the server would not have known that the user had already logged in and authenticated, and required them to visit every other page.
The ability to distinguish users is also related to the disadvantage of using cookies - to some extent, anonymity is lost. For these reasons, modern browsers allow you to turn off the storage of cookies, but the user will lose the above-mentioned benefits
In the event of any discrepancies between the Czech and English versions, the Czech version shall prevail.