Cookies 
Our website uses cookies to distinguish you from other  users of our website. A cookie is a small file of letters and numbers  that we put on your computer. Cookies contain information that is  transferred to your computer’s hard drive. 
The cookies we use are  ‘analytical’ cookies. They allow us to recognise and count the number  of visitors and to see how visitors move around the site when they are  using it. This helps us to improve the way our website works, for  example by ensuring that users are finding what they are looking for  easily. 
You can find more information about the individual cookies we use and the purposes for which we use them in the table below: 
Name Expiration Description 
_ga 2 years Used to distinguish users. 
_gat 10 minutes Used to throttle request rate. 
__utmat  2 years from set/update Used to distinguish users and sessions. The  cookie is created when the javascript library executes and no existing  __utma cookies exists. The cookie is updated every time data is sent to  Google Analytics. 
__utmt 10 minutes Used to throttle request rate. 
__utmb  30 mins from set/update Used to determine new sessions/visits. The  cookie is created when the javascript library executes and no existing  __utmb cookies exists. The cookie is updated every time data is sent to  Google Analytics. 
__utmc End of browser session Not used in  ga.js. Set for interoperability with urchin.js. Historically, this  cookie operated in conjunction with the __utmb cookie to determine  whether the user was in a new session/visit. 
__utmz 6 months from  set/update Stores the traffic source or campaign that explains how the  user reached your site. The cookie is created when the javascript  library executes and is updated every time data is sent to Google  Analytics. 
__utmv 2 years from set/update Used to store  visitor-level custom variable data. This cookie is created when a  developer uses the _setCustomVar method with a visitor level custom  variable. This cookie was also used for the deprecated _setVar method.  The cookie is updated every time data is sent to Google Analytics. 
eucookie 1 year Used to record displayed cookie disclaimer notification 
These cookies do not record any personally identifiable information (PII). 
You  can block cookies by activating the setting on your browser that allows  you to refuse the setting of all or some cookies. However, if you use  your browser settings to block all cookies (including essential cookies)  you may not be able to access all or parts of our site. 
CHANGES TO OUR PRIVACY & COOKIES POLICY 
Any  changes we may make to our privacy policy in the future will be posted  on this page and, where appropriate, notified to you by email. Please  check back frequently to see any updates or changes to our Privacy and  Cookies Policy.