Information is saved in this text file, such as your choice of language on a website. When you visit the website later again, this cookie returns to the concerned website. In this way, the website recognizes your browser and can for example retain your choice of language.
Cookies usually also have an expiration date. For example, some cookies are automatically deleted when you close your browser (so-called session cookies), while others can be stored longer on your computer, sometimes until you delete them manually (so-called permanent or persistent cookies).
(a) Essential Cookies. We use essential cookies to authenticate users, prevent fraudulent use of the Website, and to allow the Website and its features to function properly.
These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information.