Learn about cookies and how we use them on this website.
What are cookies?
A cookie is a small text file which is stored on your computer or IT-equipment. Cookies make it possible for the website to recognise your device, and to gather information about the pages and functions that you use in your browser. However, cookies cannot identify you, detect your name, where you live, or whether your computer is used by one or several people.
Read the relevant legal document
Using Cookies for Statistics
Online user surveys and cookies
When we undertake online user surveys on our website, we set cookies to control how many times the survey is shown to the user, and to ensure that it is not shown to users who have already participated in the survey.
Duration of cookies:
|_pk_ses.<websiteID>.<domainHash>||First-party cookie||30 minutes|
|pk_ref.<websiteID>.<domainHash>||First-party cookie||13 months|
|_pk_id.<websiteID>.<domainHash>||First-party cookie||13 months|
|_pk_cvar||First-party cookie||30 minutes|
|piwik_auth||First-party cookie||1440 seconds|
|PIWIK_SESSID||First-party cookie||1440 seconds|
|stg_popup||First-party cookie||12 months|
|stg_content||First-party cookie||12 months|
|website_id||First-party cookie||12 months|
|_stg_debug||First-party cookie||14 d|
|stg_traffic_source_priority||First-party cookie||30 minutes|
|stg_last_interaction||First-party cookie||12 months|
|stg_returning_visitor||First-party cookie||12 months|
|_stg_optout||First-party cookie||12 months|
Rejecting or deleting cookies
You can reject cookies at any time by changing your browser settings. Accessing browser settings varies from browser to browser. However, setting your browser to reject all cookies may result in the loss of certain functionality, because the website will not be able to store information about the choices you make.
All browsers allow you to delete cookies either one at the time or all at once. Deleting cookies varies from browser to browser.