Cookies are text files containing small amounts of data which are downloaded to your computer, or other device, when you visit a website. They are useful because they allow us to recognise your computer and improve your experience on our websites. Some cookies are also needed for the operation of our websites.

The table below lists the cookies we use and explains why we use them.

Cookie name Expiry Purpose Type
 _cfduid 1 year Used by Cloudflare (the content network) to identify trusted web traffic, and protect our website against malicious activity. This does not contain any user identification information. Necessary
 _dc_gtm_UA-# Session These cookies are used to collect information about how visitors use our website. We use the information to compile reports and to help us improve the website.

The cookies collect information in a way that does not directly identify anyone, including the number of visitors to the website, where visitors have come to the website from and the pages they visited.
 _ga 2 years Analytics
 _gid Session Analytics
 _gat Session Analytics
 gwcc 3 months Analytics
 collect Session  Analytics
SECFOSSESSID Session Used by the website to store an anonymous session ID. This enables our search and content filters to function, and isn't used for analytics purposes. Necessary
cookies_accepted 1 year Used to store acceptance of necessary cookies. Necessary
analytics_accepted 1 year Used to store acceptance of analytics cookies. Used if you accept analytics cookies
GPS 1 day Registers a unique ID on mobile devices to enable tracking based on geographical GPS location. Used if you watch a YouTube video on our site
YSC Session Registers a unique ID to keep statistics of what videos from YouTube the user has seen. Used if you watch a YouTube video on our site
VISITOR_INFO1_LIVE 179 days Tries to estimate the users' bandwidth on pages with integrated YouTube videos. Used if you watch a YouTube video on our site
PREF 8 months Registers a unique ID that is used by Google to keep statistics of how the visitor uses YouTube videos across different websites. Used if you watch a YouTube video on our site