Cookies Guideline

EU regulations specify that website owners need to inform visitors of the way in which cookies are used.

With this service page we not only want to comply with this requirement, but we also want to take the opportunity to give you a general understanding of this topic, particularly the use of cookies. We believe that it is important to protect your privacy and to outline our use and analysis of data. Please also read our privacy statement.

So what exactly are cookies?


Cookies are bits of information that are saved directly to the visitor's hard disk or the memory of their PC/tablet/smartphone by their web browser. They are important for the correct functioning of a website.

How does that work?


A small file is stored by your internet browser on the first visit to a website. On repeat visits to this website using the same device, the cookie and all information stored therein is sent back to the website where it originated (first party cookie) or transmitted to a different website which it belongs to (third party cookie).

What are cookies for?


This technology is primarily used for shopping in online stores. Examples of the specific use of cookies include the storage of login data or auto-fill forms. Cookies may also be used for statistical data regarding the optimisation of website features or in order to provide personalised content tailored to your interests.

What types of cookies are there?


Depending on the nature of their function and purpose, cookies are divided into four categories:

  1. Strictly necessary cookies
  2. Performance cookies
  3. Functionality cookies
  4. Targeting cookies
For how long are these data stored?


Duration of data storage depends on the importance of a functionality:

  • Session cookies
  • Persistant cookies

The duration of storage can therefore range anywhere from a few seconds to several years. However, as an internet user you have the opportunity to determine your browser's  (Internet Explorer, Firefox, Chrome, Safari, Opera, Iron, etc.) settings for cookies on your system at any time.


Managing cookies in your browser


Via browser settings you can determine how your browser uses cookies, how you can block or delete them. For the management of cookies, most browsers allow you to accept or decline all cookies, or to accept only certain types of cookies.

 You can also specify that you will be asked every time a website tries to save a cookie to your computer. It is actually very simple to delete cookies your browser has already saved to your device. However, since the procedure varies from browser to browser, we recommend the Help function of your browser for details about the necessary steps.

In addition, many browsers offer so-called "trackless" browsing (Private Browsing, InPrivate Browsing, Incognito mode, private surfing). This means that all temporary files (such as cookies) are automatically cleared from your browser after you have concluded your visit to a website.


Firefox: https://support.mozilla.org/en-US/products/firefox/privacy-and-security/cookies

Internet Explorer: http://windows.microsoft.com/en-us/internet-explorer/delete-manage-cookies#ie=ie-11

Chrome: https://support.google.com/chrome/answer/95647?hl=en

Safari: http://support.apple.com/kb/PH19214?viewlocale=en_US&locale=en_US

Edge: http://windows.microsoft.com/en-us/windows-10/edge-privacy-faq


First part cookies

Name Purpose Category
ASP.NET_SessionId Stores information from application about current session Functionality
.AspNet.ApplicationCookie Stores information about login status Functionality
_AuthProviderState Single-Sign-On-Functionality to AuthenticationProvider Functionality
ARRAffinity The application is provided on multiple servers. To ensure that the user of the page is directed to the same server as in the first request, this cookie is used. Functionality
vw-cookie-accepted Cookie information cookie. Functionality

Third part cookies

Name Purpose Category
_ga and_gat

Cookies required for the use of Google Analytics.
More information

Analytics & Targeting
ai_session and ai_user Session- and User-Cookie for Application-Insights Analytics